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Update.
1998-05-28 00:53 Zack Weinberg <zack@rabi.phys.columbia.edu> * glibcbug.in: Send to bugs@gnu or libc-alpha@cygnus depending on whether this is a stable release or not (keeps snapshot bug reports out of the database). * include/libc-symbols.h: Use __ASSEMBLER__ test macro not ASSEMBLER. * sysdeps/arm/sysdep.h: Likewise. * sysdeps/i386/sysdep.h: Likewise. * sysdeps/m68k/sysdep.h: Likewise. * sysdeps/mach/mips/sysdep.h: Likewise. * sysdeps/mach/sys/reboot.h: Likewise. * sysdeps/mach/sysdep.h: Likewise. * sysdeps/unix/alpha/sysdep.h: Likewise. * sysdeps/unix/bsd/hp/m68k/sysdep.h: Likewise. * sysdeps/unix/bsd/osf/alpha/sysdep.h: Likewise. * sysdeps/unix/bsd/sequent/i386/sysdep.h: Likewise. * sysdeps/unix/bsd/sony/newsos/m68k/sysdep.h: Likewise. * sysdeps/unix/bsd/sun/m68k/sysdep.h: Likewise. * sysdeps/unix/bsd/vax/sysdep.h: Likewise. * sysdeps/unix/i386/sysdep.h: Likewise. * sysdeps/unix/mips/sysdep.h: Likewise. * sysdeps/unix/sparc/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/alpha/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/arm/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/i386/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/m68k/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/powerpc/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h: Likewise. * sysdeps/unix/sysv/sysv4/solaris2/sparc/sysdep.h: Likewise. 1998-05-27 Mark Kettenis <kettenis@phys.uva.nl> * mach/Machrules: Use $(move-if-change). 1998-05-27 Mark Kettenis <kettenis@phys.uva.nl> * Makeconfig [elf=yes] (+interp): New variable, set to interp.os. * Makerules (lib%.so): Depend on $(+interp). (libc.so): Add interp.os to list of dependencies. (interp-obj): Remove variable. * mach/Machrules (+interp): Define to empty since libhurduser and libmachuser don't need to have the interpreter set. 1998-05-28 Andreas Jaeger <aj@arthur.rhein-neckar.de> * resolv/res_send.c: Security fixes from bind 4.9.7-REL. * resolv/gethnamaddr.c: Likewise. * resolv/res_comp.c: Likewise. 1998-05-28 Mark Kettenis <kettenis@phys.uva.nl> * sysdeps/mach/hurd/wait4.c (__wait4): Use ANSI-style definition so that transparent union works.
This commit is contained in:
parent
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58
ChangeLog
58
ChangeLog
@ -1,3 +1,61 @@
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1998-05-28 00:53 Zack Weinberg <zack@rabi.phys.columbia.edu>
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* glibcbug.in: Send to bugs@gnu or libc-alpha@cygnus depending
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on whether this is a stable release or not (keeps snapshot bug
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reports out of the database).
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* include/libc-symbols.h: Use __ASSEMBLER__ test macro not ASSEMBLER.
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* sysdeps/arm/sysdep.h: Likewise.
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* sysdeps/i386/sysdep.h: Likewise.
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* sysdeps/m68k/sysdep.h: Likewise.
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* sysdeps/mach/mips/sysdep.h: Likewise.
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* sysdeps/mach/sys/reboot.h: Likewise.
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* sysdeps/mach/sysdep.h: Likewise.
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* sysdeps/unix/alpha/sysdep.h: Likewise.
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* sysdeps/unix/bsd/hp/m68k/sysdep.h: Likewise.
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* sysdeps/unix/bsd/osf/alpha/sysdep.h: Likewise.
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* sysdeps/unix/bsd/sequent/i386/sysdep.h: Likewise.
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* sysdeps/unix/bsd/sony/newsos/m68k/sysdep.h: Likewise.
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* sysdeps/unix/bsd/sun/m68k/sysdep.h: Likewise.
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* sysdeps/unix/bsd/vax/sysdep.h: Likewise.
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* sysdeps/unix/i386/sysdep.h: Likewise.
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* sysdeps/unix/mips/sysdep.h: Likewise.
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* sysdeps/unix/sparc/sysdep.h: Likewise.
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* sysdeps/unix/sysv/linux/alpha/sysdep.h: Likewise.
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* sysdeps/unix/sysv/linux/arm/sysdep.h: Likewise.
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* sysdeps/unix/sysv/linux/i386/sysdep.h: Likewise.
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* sysdeps/unix/sysv/linux/m68k/sysdep.h: Likewise.
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* sysdeps/unix/sysv/linux/powerpc/sysdep.h: Likewise.
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* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h: Likewise.
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* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h: Likewise.
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* sysdeps/unix/sysv/sysv4/solaris2/sparc/sysdep.h: Likewise.
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1998-05-27 Mark Kettenis <kettenis@phys.uva.nl>
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* mach/Machrules: Use $(move-if-change).
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1998-05-27 Mark Kettenis <kettenis@phys.uva.nl>
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* Makeconfig [elf=yes] (+interp): New variable, set to interp.os.
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* Makerules (lib%.so): Depend on $(+interp).
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(libc.so): Add interp.os to list of dependencies.
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(interp-obj): Remove variable.
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* mach/Machrules (+interp): Define to empty since libhurduser and
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libmachuser don't need to have the interpreter set.
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1998-05-28 Andreas Jaeger <aj@arthur.rhein-neckar.de>
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* resolv/res_send.c: Security fixes from bind 4.9.7-REL.
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* resolv/gethnamaddr.c: Likewise.
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* resolv/res_comp.c: Likewise.
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1998-05-28 Mark Kettenis <kettenis@phys.uva.nl>
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* sysdeps/mach/hurd/wait4.c (__wait4): Use ANSI-style definition
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so that transparent union works.
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1998-05-29 08:58 Ulrich Drepper <drepper@cygnus.com>
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* manual/texinfo.tex: Update to last available version.
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@ -457,6 +457,7 @@ ifeq ($(elf),yes)
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+postinit = $(addprefix $(csu-objpfx),crtn.o)
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+prector = `$(CC) --print-file-name=crtbegin.o`
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+postctor = `$(CC) --print-file-name=crtend.o`
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+interp = $(addprefix $(elf-objpfx),interp.os)
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endif
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csu-objpfx = $(common-objpfx)csu/
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elf-objpfx = $(common-objpfx)elf/
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11
Makerules
11
Makerules
@ -335,15 +335,9 @@ endif
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# build shared libraries in place from the installed *_pic.a files.
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# $(LDLIBS-%.so) may contain -l switches to generate run-time dependencies
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# on other shared objects.
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lib%.so: lib%_pic.a $(+preinit) $(+postinit)
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lib%.so: lib%_pic.a $(+preinit) $(+postinit) $(+interp)
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$(build-shlib)
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ifeq ($(elf),yes)
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interp-obj = $(common-objpfx)elf/interp.os
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$(common-objpfx)libc.so: $(interp-obj)
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$(patsubst %,$(objpfx)%.so,$(extra-libs)): $(interp-obj)
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endif
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define build-shlib
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$(LINK.o) -shared -o $@ $(sysdep-LDFLAGS) $(config-LDFLAGS) \
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-B$(csu-objpfx) $(load-map-file) \
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@ -390,7 +384,8 @@ $(common-objpfx)libc_pic.os: $(common-objpfx)libc_pic.a
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# Use our own special initializer and finalizer files for libc.so.
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$(common-objpfx)libc.so: $(elfobjdir)/soinit.os \
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$(common-objpfx)libc_pic.os \
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$(elfobjdir)/sofini.os $(elfobjdir)/ld.so \
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$(elfobjdir)/sofini.os \
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$(elfobjdir)/interp.os $(elfobjdir)/ld.so \
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$(..)libc.map
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$(build-shlib)
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common-generated += libc.so libc_pic.os
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@ -6,7 +6,7 @@
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# these variables are filled in by configure
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#
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VERSION="@VERSION@"
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BUGGLIBC="bugs@gnu.org"
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RELEASE="@RELEASE@"
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ADDONS="@subdirs@"
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HOST="@host@"
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CC='@CC@'
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@ -35,6 +35,12 @@ if test $? -ne 0; then
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chmod 600 $TEMPx
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fi
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if test "$RELEASE" = "stable"; then
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BUGGLIBC="bugs@gnu.org"
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else
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BUGGLIBC="libc-alpha@cygnus.com"
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fi
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BUGADDR=${1-$BUGGLIBC}
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: ${EDITOR=emacs}
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@ -56,7 +56,7 @@
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*/
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#ifndef ASSEMBLER
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#ifndef __ASSEMBLER__
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/* Define the macros `_' and `N_' for conveniently marking translatable
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strings in the libc source code. */
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@ -109,7 +109,7 @@ extern const char _libc_intl_domainname[];
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# define strong_alias_asm(original, alias) \
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ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias); \
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.set C_SYMBOL_NAME (alias),C_SYMBOL_NAME (original)
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# ifdef ASSEMBLER
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# ifdef __ASSEMBLER__
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# define strong_alias(original, alias) strong_alias_asm (original, alias)
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# else
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# define strong_alias(original, alias) \
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@ -120,7 +120,7 @@ extern const char _libc_intl_domainname[];
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# define strong_alias_asm(original, alias) \
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ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (alias); \
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C_SYMBOL_NAME (alias) = C_SYMBOL_NAME (original)
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# ifdef ASSEMBLER
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# ifdef __ASSEMBLER__
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# define strong_alias(original, alias) strong_alias_asm (original, alias)
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# else
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# define strong_alias(original, alias) \
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@ -136,7 +136,7 @@ extern const char _libc_intl_domainname[];
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#ifdef HAVE_WEAK_SYMBOLS
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# ifdef ASSEMBLER
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# ifdef __ASSEMBLER__
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# ifdef HAVE_ASM_WEAKEXT_DIRECTIVE
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@ -164,7 +164,7 @@ extern const char _libc_intl_domainname[];
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# endif /* ! HAVE_ASM_WEAKEXT_DIRECTIVE */
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# else /* ! ASSEMBLER */
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# else /* ! __ASSEMBLER__ */
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# ifdef HAVE_ASM_WEAKEXT_DIRECTIVE
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# define weak_extern_asm(symbol) asm (".weakext " __SYMBOL_PREFIX #symbol);
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@ -180,14 +180,14 @@ extern const char _libc_intl_domainname[];
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# define weak_alias(o, a) weak_alias_asm (o, a)
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# define weak_extern(symbol) weak_extern_asm (symbol)
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# endif /* ! ASSEMBLER */
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# endif /* ! __ASSEMBLER__ */
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#else
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# define weak_alias(original, alias) strong_alias(original, alias)
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# define weak_extern(symbol) /* Do nothing; the ref will be strong. */
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#endif
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#if (!defined ASSEMBLER && \
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#if (!defined __ASSEMBLER__ && \
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(__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)))
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/* GCC 2.7 and later has special syntax for weak symbols and aliases.
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Using that is better when possible, because the compiler and assembler
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@ -207,7 +207,7 @@ extern const char _libc_intl_domainname[];
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# define weak_const_function __attribute__ ((weak, __const__))
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# endif /* HAVE_WEAK_SYMBOLS. */
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#endif /* Not ASSEMBLER, and GCC 2.7 or later. */
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#endif /* Not __ASSEMBLER__, and GCC 2.7 or later. */
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#ifndef weak_function
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@ -326,7 +326,7 @@ extern const char _libc_intl_domainname[];
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#endif /* Have GNU ld. */
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#if DO_VERSIONING
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# ifdef ASSEMBLER
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# ifdef __ASSEMBLER__
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# define symbol_version(real, name, version) \
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.symver real, name##@##version
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# define default_symbol_version(real, name, version) \
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@ -114,7 +114,7 @@ $(patsubst %,$(objpfx)%.ustamp,$(user-interfaces)): $(objpfx)%.ustamp:
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-server /dev/null -user /dev/null -header /dev/null
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for call in $($*-calls); do \
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$(transform-user-stub) \
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../move-if-change $(objpfx)$(transform-user-stub-output)_$${call}.c \
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$(move-if-change) $(objpfx)$(transform-user-stub-output)_$${call}.c \
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$(objpfx)RPC_$${call}.c; \
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done
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touch $@
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@ -211,8 +211,9 @@ extra-libs += $(interface-library)
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# Avoid -lmachuser requiring -lc, which may not be built yet. If the
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# shared object is absent, ld may choose a static library someplace and
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# produce a bogus libmachuser.so.
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+preinit =
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+postinit =
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+preinit =
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+postinit =
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+interp =
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interface.so = $(interface-library:lib%=%.so)
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LDFLAGS-$(interface.so) = -nostdlib -nostartfiles
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@ -160,6 +160,24 @@ dprintf(msg, num)
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# define dprintf(msg, num) /*nada*/
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#endif
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#define BOUNDED_INCR(x) \
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do { \
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cp += x; \
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if (cp > eom) { \
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__set_h_errno (NO_RECOVERY); \
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return (NULL); \
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} \
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} while (0)
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#define BOUNDS_CHECK(ptr, count) \
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do { \
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if ((ptr) + (count) > eom) { \
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__set_h_errno (NO_RECOVERY); \
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return (NULL); \
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} \
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} while (0)
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static struct hostent *
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getanswer(answer, anslen, qname, qtype)
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const querybuf *answer;
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@ -170,7 +188,7 @@ getanswer(answer, anslen, qname, qtype)
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register const HEADER *hp;
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register const u_char *cp;
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register int n;
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const u_char *eom;
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const u_char *eom, *erdata;
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char *bp, **ap, **hap;
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int type, class, buflen, ancount, qdcount;
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int haveanswer, had_error;
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@ -201,7 +219,8 @@ getanswer(answer, anslen, qname, qtype)
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qdcount = ntohs(hp->qdcount);
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bp = hostbuf;
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buflen = sizeof hostbuf;
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cp = answer->buf + HFIXEDSZ;
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cp = answer->buf;
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BOUNDED_INCR(HFIXEDSZ);
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if (qdcount != 1) {
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__set_h_errno (NO_RECOVERY);
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return (NULL);
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@ -211,7 +230,7 @@ getanswer(answer, anslen, qname, qtype)
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__set_h_errno (NO_RECOVERY);
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return (NULL);
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}
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cp += n + QFIXEDSZ;
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BOUNDED_INCR(n + QFIXEDSZ);
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if (qtype == T_A || qtype == T_AAAA) {
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/* res_send() has already verified that the query name is the
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* same as the one we sent; this just gets the expanded name
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@ -243,12 +262,15 @@ getanswer(answer, anslen, qname, qtype)
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continue;
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}
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cp += n; /* name */
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BOUNDS_CHECK(cp, 3 * INT16SZ + INT32SZ);
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type = _getshort(cp);
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cp += INT16SZ; /* type */
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class = _getshort(cp);
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cp += INT16SZ + INT32SZ; /* class, TTL */
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n = _getshort(cp);
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cp += INT16SZ; /* len */
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BOUNDS_CHECK(cp, n);
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erdata = cp + n;
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if (class != C_IN) {
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/* XXX - debug? syslog? */
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cp += n;
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@ -263,6 +285,10 @@ getanswer(answer, anslen, qname, qtype)
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continue;
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}
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cp += n;
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if (cp != erdata) {
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__set_h_errno (NO_RECOVERY);
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return (NULL);
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}
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/* Store alias. */
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*ap++ = bp;
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n = strlen(bp) + 1; /* for the \0 */
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@ -291,6 +317,10 @@ getanswer(answer, anslen, qname, qtype)
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continue;
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}
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cp += n;
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if (cp != erdata) {
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__set_h_errno (NO_RECOVERY);
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return (NULL);
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}
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/* Get canonical name. */
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n = strlen(tbuf) + 1; /* for the \0 */
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if (n > buflen || n >= MAXHOSTNAMELEN) {
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@ -326,6 +356,10 @@ getanswer(answer, anslen, qname, qtype)
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}
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#if MULTI_PTRS_ARE_ALIASES
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cp += n;
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if (cp != erdata) {
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__set_h_errno (NO_RECOVERY);
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return (NULL);
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}
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if (!haveanswer)
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host.h_name = bp;
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else if (ap < &host_aliases[MAXALIASES-1])
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@ -397,6 +431,10 @@ getanswer(answer, anslen, qname, qtype)
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bp += n;
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buflen -= n;
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cp += n;
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if (cp != erdata) {
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__set_h_errno (NO_RECOVERY);
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return (NULL);
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}
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break;
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default:
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abort();
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|
@ -63,9 +63,10 @@ static char rcsid[] = "$Id$";
|
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#include <netinet/in.h>
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#include <arpa/nameser.h>
|
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|
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#include <stdio.h>
|
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#include <resolv.h>
|
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#include <ctype.h>
|
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#include <errno.h>
|
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#include <resolv.h>
|
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#include <stdio.h>
|
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|
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#if defined(BSD) && (BSD >= 199103)
|
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# include <unistd.h>
|
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@ -74,8 +75,17 @@ static char rcsid[] = "$Id$";
|
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# include "../conf/portability.h"
|
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#endif
|
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|
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static int dn_find __P((u_char *exp_dn, u_char *msg,
|
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u_char **dnptrs, u_char **lastdnptr));
|
||||
static int ns_name_ntop __P((const u_char *, char *, size_t));
|
||||
static int ns_name_pton __P((const char *, u_char *, size_t));
|
||||
static int ns_name_unpack __P((const u_char *, const u_char *,
|
||||
const u_char *, u_char *, size_t));
|
||||
static int ns_name_pack __P((const u_char *, u_char *, int,
|
||||
const u_char **, const u_char **));
|
||||
static int ns_name_uncompress __P((const u_char *, const u_char *,
|
||||
const u_char *, char *, size_t));
|
||||
static int ns_name_compress __P((const char *, u_char *, size_t,
|
||||
const u_char **, const u_char **));
|
||||
static int ns_name_skip __P((const u_char **, const u_char *));
|
||||
|
||||
/*
|
||||
* Expand compressed domain name 'comp_dn' to full domain name.
|
||||
@ -85,261 +95,51 @@ static int dn_find __P((u_char *exp_dn, u_char *msg,
|
||||
* Return size of compressed name or -1 if there was an error.
|
||||
*/
|
||||
int
|
||||
dn_expand(msg, eomorig, comp_dn, exp_dn, length)
|
||||
const u_char *msg, *eomorig, *comp_dn;
|
||||
char *exp_dn;
|
||||
int length;
|
||||
dn_expand(msg, eom, src, dst, dstsiz)
|
||||
const u_char *msg;
|
||||
const u_char *eom;
|
||||
const u_char *src;
|
||||
char *dst;
|
||||
int dstsiz;
|
||||
{
|
||||
register const u_char *cp;
|
||||
register char *dn;
|
||||
register int n, c;
|
||||
char *eom;
|
||||
int len = -1, checked = 0, octets = 0;
|
||||
int n = ns_name_uncompress(msg, eom, src, dst, (size_t)dstsiz);
|
||||
|
||||
dn = exp_dn;
|
||||
cp = comp_dn;
|
||||
eom = exp_dn + length;
|
||||
/*
|
||||
* fetch next label in domain name
|
||||
*/
|
||||
while (n = *cp++) {
|
||||
/*
|
||||
* Check for indirection
|
||||
*/
|
||||
switch (n & INDIR_MASK) {
|
||||
case 0:
|
||||
octets += (n + 1);
|
||||
if (octets > MAXCDNAME)
|
||||
return (-1);
|
||||
if (dn != exp_dn) {
|
||||
if (dn >= eom)
|
||||
return (-1);
|
||||
*dn++ = '.';
|
||||
}
|
||||
if (dn+n >= eom)
|
||||
return (-1);
|
||||
checked += n + 1;
|
||||
while (--n >= 0) {
|
||||
if (((c = *cp++) == '.') || (c == '\\')) {
|
||||
if (dn + n + 2 >= eom)
|
||||
return (-1);
|
||||
*dn++ = '\\';
|
||||
}
|
||||
*dn++ = c;
|
||||
if (cp >= eomorig) /* out of range */
|
||||
return (-1);
|
||||
}
|
||||
break;
|
||||
|
||||
case INDIR_MASK:
|
||||
if (len < 0)
|
||||
len = cp - comp_dn + 1;
|
||||
cp = msg + (((n & 0x3f) << 8) | (*cp & 0xff));
|
||||
if (cp < msg || cp >= eomorig) /* out of range */
|
||||
return (-1);
|
||||
checked += 2;
|
||||
/*
|
||||
* Check for loops in the compressed name;
|
||||
* if we've looked at the whole message,
|
||||
* there must be a loop.
|
||||
*/
|
||||
if (checked >= eomorig - msg)
|
||||
return (-1);
|
||||
break;
|
||||
|
||||
default:
|
||||
return (-1); /* flag error */
|
||||
}
|
||||
}
|
||||
*dn = '\0';
|
||||
if (len < 0)
|
||||
len = cp - comp_dn;
|
||||
return (len);
|
||||
if (n > 0 && dst[0] == '.')
|
||||
dst[0] = '\0';
|
||||
return (n);
|
||||
}
|
||||
|
||||
/*
|
||||
* Compress domain name 'exp_dn' into 'comp_dn'.
|
||||
* Pack domain name 'exp_dn' in presentation form into 'comp_dn'.
|
||||
* Return the size of the compressed name or -1.
|
||||
* 'length' is the size of the array pointed to by 'comp_dn'.
|
||||
* 'dnptrs' is a list of pointers to previous compressed names. dnptrs[0]
|
||||
* is a pointer to the beginning of the message. The list ends with NULL.
|
||||
* 'lastdnptr' is a pointer to the end of the array pointed to
|
||||
* by 'dnptrs'. Side effect is to update the list of pointers for
|
||||
* labels inserted into the message as we compress the name.
|
||||
* If 'dnptr' is NULL, we don't try to compress names. If 'lastdnptr'
|
||||
* is NULL, we don't update the list.
|
||||
*/
|
||||
int
|
||||
dn_comp(exp_dn, comp_dn, length, dnptrs, lastdnptr)
|
||||
const char *exp_dn;
|
||||
u_char *comp_dn, **dnptrs, **lastdnptr;
|
||||
int length;
|
||||
dn_comp(src, dst, dstsiz, dnptrs, lastdnptr)
|
||||
const char *src;
|
||||
u_char *dst;
|
||||
int dstsiz;
|
||||
u_char **dnptrs;
|
||||
u_char **lastdnptr;
|
||||
{
|
||||
register u_char *cp, *dn;
|
||||
register int c, l;
|
||||
u_char **cpp, **lpp, *sp, *eob;
|
||||
u_char *msg;
|
||||
|
||||
dn = (u_char *)exp_dn;
|
||||
cp = comp_dn;
|
||||
if (length > MAXCDNAME)
|
||||
length = MAXCDNAME;
|
||||
eob = cp + length;
|
||||
lpp = cpp = NULL;
|
||||
if (dnptrs != NULL) {
|
||||
if ((msg = *dnptrs++) != NULL) {
|
||||
for (cpp = dnptrs; *cpp != NULL; cpp++)
|
||||
;
|
||||
lpp = cpp; /* end of list to search */
|
||||
}
|
||||
} else
|
||||
msg = NULL;
|
||||
for (c = *dn++; c != '\0'; ) {
|
||||
/* look to see if we can use pointers */
|
||||
if (msg != NULL) {
|
||||
if ((l = dn_find(dn-1, msg, dnptrs, lpp)) >= 0) {
|
||||
if (cp+1 >= eob)
|
||||
return (-1);
|
||||
*cp++ = (l >> 8) | INDIR_MASK;
|
||||
*cp++ = l % 256;
|
||||
return (cp - comp_dn);
|
||||
}
|
||||
/* not found, save it */
|
||||
if (lastdnptr != NULL && cpp < lastdnptr-1) {
|
||||
*cpp++ = cp;
|
||||
*cpp = NULL;
|
||||
}
|
||||
}
|
||||
sp = cp++; /* save ptr to length byte */
|
||||
do {
|
||||
if (c == '.') {
|
||||
c = *dn++;
|
||||
break;
|
||||
}
|
||||
if (c == '\\') {
|
||||
if ((c = *dn++) == '\0')
|
||||
break;
|
||||
}
|
||||
if (cp >= eob) {
|
||||
if (msg != NULL)
|
||||
*lpp = NULL;
|
||||
return (-1);
|
||||
}
|
||||
*cp++ = c;
|
||||
} while ((c = *dn++) != '\0');
|
||||
/* catch trailing '.'s but not '..' */
|
||||
if ((l = cp - sp - 1) == 0 && c == '\0') {
|
||||
cp--;
|
||||
break;
|
||||
}
|
||||
if (l <= 0 || l > MAXLABEL) {
|
||||
if (msg != NULL)
|
||||
*lpp = NULL;
|
||||
return (-1);
|
||||
}
|
||||
*sp = l;
|
||||
}
|
||||
if (cp >= eob) {
|
||||
if (msg != NULL)
|
||||
*lpp = NULL;
|
||||
return (-1);
|
||||
}
|
||||
*cp++ = '\0';
|
||||
return (cp - comp_dn);
|
||||
return (ns_name_compress(src, dst, (size_t)dstsiz,
|
||||
(const u_char **)dnptrs,
|
||||
(const u_char **)lastdnptr));
|
||||
}
|
||||
|
||||
/*
|
||||
* Skip over a compressed domain name. Return the size or -1.
|
||||
*/
|
||||
int
|
||||
__dn_skipname(comp_dn, eom)
|
||||
const u_char *comp_dn, *eom;
|
||||
__dn_skipname(ptr, eom)
|
||||
const u_char *ptr;
|
||||
const u_char *eom;
|
||||
{
|
||||
register const u_char *cp;
|
||||
register int n;
|
||||
const u_char *saveptr = ptr;
|
||||
|
||||
cp = comp_dn;
|
||||
while (cp < eom && (n = *cp++)) {
|
||||
/*
|
||||
* check for indirection
|
||||
*/
|
||||
switch (n & INDIR_MASK) {
|
||||
case 0: /* normal case, n == len */
|
||||
cp += n;
|
||||
continue;
|
||||
case INDIR_MASK: /* indirection */
|
||||
cp++;
|
||||
break;
|
||||
default: /* illegal type */
|
||||
return (-1);
|
||||
}
|
||||
break;
|
||||
}
|
||||
if (cp > eom)
|
||||
if (ns_name_skip(&ptr, eom) == -1)
|
||||
return (-1);
|
||||
return (cp - comp_dn);
|
||||
}
|
||||
|
||||
static int
|
||||
mklower(ch)
|
||||
register int ch;
|
||||
{
|
||||
if (isascii(ch) && isupper(ch))
|
||||
return (tolower(ch));
|
||||
return (ch);
|
||||
}
|
||||
|
||||
/*
|
||||
* Search for expanded name from a list of previously compressed names.
|
||||
* Return the offset from msg if found or -1.
|
||||
* dnptrs is the pointer to the first name on the list,
|
||||
* not the pointer to the start of the message.
|
||||
*/
|
||||
static int
|
||||
dn_find(exp_dn, msg, dnptrs, lastdnptr)
|
||||
u_char *exp_dn, *msg;
|
||||
u_char **dnptrs, **lastdnptr;
|
||||
{
|
||||
register u_char *dn, *cp, **cpp;
|
||||
register int n;
|
||||
u_char *sp;
|
||||
|
||||
for (cpp = dnptrs; cpp < lastdnptr; cpp++) {
|
||||
dn = exp_dn;
|
||||
sp = cp = *cpp;
|
||||
while (n = *cp++) {
|
||||
/*
|
||||
* check for indirection
|
||||
*/
|
||||
switch (n & INDIR_MASK) {
|
||||
case 0: /* normal case, n == len */
|
||||
while (--n >= 0) {
|
||||
if (*dn == '.')
|
||||
goto next;
|
||||
if (*dn == '\\')
|
||||
dn++;
|
||||
if (mklower(*dn++) != mklower(*cp++))
|
||||
goto next;
|
||||
}
|
||||
if ((n = *dn++) == '\0' && *cp == '\0')
|
||||
return (sp - msg);
|
||||
if (n == '.')
|
||||
continue;
|
||||
goto next;
|
||||
|
||||
case INDIR_MASK: /* indirection */
|
||||
cp = msg + (((n & 0x3f) << 8) | *cp);
|
||||
break;
|
||||
|
||||
default: /* illegal type */
|
||||
return (-1);
|
||||
}
|
||||
}
|
||||
if (*dn == '\0')
|
||||
return (sp - msg);
|
||||
next: ;
|
||||
}
|
||||
return (-1);
|
||||
return (ptr - saveptr);
|
||||
}
|
||||
|
||||
/*
|
||||
@ -510,3 +310,645 @@ __putlong(l, msgp)
|
||||
{
|
||||
PUTLONG(l, msgp);
|
||||
}
|
||||
|
||||
/* ++ From BIND 8.1.1. ++ */
|
||||
/*
|
||||
* Copyright (c) 1996 by Internet Software Consortium.
|
||||
*
|
||||
* Permission to use, copy, modify, and distribute this software for any
|
||||
* purpose with or without fee is hereby granted, provided that the above
|
||||
* copyright notice and this permission notice appear in all copies.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
|
||||
* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
|
||||
* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
|
||||
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
|
||||
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
|
||||
* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
|
||||
* SOFTWARE.
|
||||
*/
|
||||
|
||||
/*"Id: ns_name.c,v 1.1 1997/12/13 02:41:13 vixie Exp vixie"*/
|
||||
|
||||
/*#include "port_before.h"*/
|
||||
|
||||
/*#include <sys/types.h>*/
|
||||
|
||||
/*#include <netinet/in.h>*/
|
||||
/*#include <arpa/nameser.h>*/
|
||||
|
||||
/*#include <errno.h>*/
|
||||
/*#include <resolv.h>*/
|
||||
/*#include <string.h>*/
|
||||
|
||||
/*#include "port_after.h"*/
|
||||
|
||||
#define NS_CMPRSFLGS 0xc0 /* Flag bits indicating name compression. */
|
||||
#define NS_MAXCDNAME 255 /* maximum compressed domain name */
|
||||
|
||||
/* Data. */
|
||||
|
||||
static char digits[] = "0123456789";
|
||||
|
||||
/* Forward. */
|
||||
|
||||
static int special(int);
|
||||
static int printable(int);
|
||||
static int dn_find(const u_char *, const u_char *,
|
||||
const u_char * const *,
|
||||
const u_char * const *);
|
||||
|
||||
/* Public. */
|
||||
|
||||
/*
|
||||
* ns_name_ntop(src, dst, dstsiz)
|
||||
* Convert an encoded domain name to printable ascii as per RFC1035.
|
||||
* return:
|
||||
* Number of bytes written to buffer, or -1 (with errno set)
|
||||
* notes:
|
||||
* The root is returned as "."
|
||||
* All other domains are returned in non absolute form
|
||||
*/
|
||||
static int
|
||||
ns_name_ntop(src, dst, dstsiz)
|
||||
const u_char *src;
|
||||
char *dst;
|
||||
size_t dstsiz;
|
||||
{
|
||||
const u_char *cp;
|
||||
char *dn, *eom;
|
||||
u_char c;
|
||||
u_int n;
|
||||
|
||||
cp = src;
|
||||
dn = dst;
|
||||
eom = dst + dstsiz;
|
||||
|
||||
while ((n = *cp++) != 0) {
|
||||
if ((n & NS_CMPRSFLGS) != 0) {
|
||||
/* Some kind of compression pointer. */
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
if (dn != dst) {
|
||||
if (dn >= eom) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
*dn++ = '.';
|
||||
}
|
||||
if (dn + n >= eom) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
for ((void)NULL; n > 0; n--) {
|
||||
c = *cp++;
|
||||
if (special(c)) {
|
||||
if (dn + 1 >= eom) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
*dn++ = '\\';
|
||||
*dn++ = (char)c;
|
||||
} else if (!printable(c)) {
|
||||
if (dn + 3 >= eom) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
*dn++ = '\\';
|
||||
*dn++ = digits[c / 100];
|
||||
*dn++ = digits[(c % 100) / 10];
|
||||
*dn++ = digits[c % 10];
|
||||
} else {
|
||||
if (dn >= eom) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
*dn++ = (char)c;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (dn == dst) {
|
||||
if (dn >= eom) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
*dn++ = '.';
|
||||
}
|
||||
if (dn >= eom) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
*dn++ = '\0';
|
||||
return (dn - dst);
|
||||
}
|
||||
|
||||
/*
|
||||
* ns_name_pton(src, dst, dstsiz)
|
||||
* Convert a ascii string into an encoded domain name as per RFC1035.
|
||||
* return:
|
||||
* -1 if it fails
|
||||
* 1 if string was fully qualified
|
||||
* 0 is string was not fully qualified
|
||||
* notes:
|
||||
* Enforces label and domain length limits.
|
||||
*/
|
||||
|
||||
static int
|
||||
ns_name_pton(src, dst, dstsiz)
|
||||
const char *src;
|
||||
u_char *dst;
|
||||
size_t dstsiz;
|
||||
{
|
||||
u_char *label, *bp, *eom;
|
||||
int c, n, escaped;
|
||||
char *cp;
|
||||
|
||||
escaped = 0;
|
||||
bp = dst;
|
||||
eom = dst + dstsiz;
|
||||
label = bp++;
|
||||
|
||||
while ((c = *src++) != 0) {
|
||||
if (escaped) {
|
||||
if ((cp = strchr(digits, c)) != NULL) {
|
||||
n = (cp - digits) * 100;
|
||||
if ((c = *src++) == 0 ||
|
||||
(cp = strchr(digits, c)) == NULL) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
n += (cp - digits) * 10;
|
||||
if ((c = *src++) == 0 ||
|
||||
(cp = strchr(digits, c)) == NULL) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
n += (cp - digits);
|
||||
if (n > 255) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
c = n;
|
||||
}
|
||||
escaped = 0;
|
||||
} else if (c == '\\') {
|
||||
escaped = 1;
|
||||
continue;
|
||||
} else if (c == '.') {
|
||||
c = (bp - label - 1);
|
||||
if ((c & NS_CMPRSFLGS) != 0) { /* Label too big. */
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
if (label >= eom) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
*label = c;
|
||||
/* Fully qualified ? */
|
||||
if (*src == '\0') {
|
||||
if (c != 0) {
|
||||
if (bp >= eom) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
*bp++ = '\0';
|
||||
}
|
||||
if ((bp - dst) > MAXCDNAME) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
return (1);
|
||||
}
|
||||
if (c == 0) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
label = bp++;
|
||||
continue;
|
||||
}
|
||||
if (bp >= eom) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
*bp++ = (u_char)c;
|
||||
}
|
||||
c = (bp - label - 1);
|
||||
if ((c & NS_CMPRSFLGS) != 0) { /* Label too big. */
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
if (label >= eom) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
*label = c;
|
||||
if (c != 0) {
|
||||
if (bp >= eom) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
*bp++ = 0;
|
||||
}
|
||||
if ((bp - dst) > MAXCDNAME) { /* src too big */
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
return (0);
|
||||
}
|
||||
|
||||
/*
|
||||
* ns_name_unpack(msg, eom, src, dst, dstsiz)
|
||||
* Unpack a domain name from a message, source may be compressed.
|
||||
* return:
|
||||
* -1 if it fails, or consumed octets if it succeeds.
|
||||
*/
|
||||
static int
|
||||
ns_name_unpack(msg, eom, src, dst, dstsiz)
|
||||
const u_char *msg;
|
||||
const u_char *eom;
|
||||
const u_char *src;
|
||||
u_char *dst;
|
||||
size_t dstsiz;
|
||||
{
|
||||
const u_char *srcp, *dstlim;
|
||||
u_char *dstp;
|
||||
#ifdef _LIBC
|
||||
/* We don't want warnings! */
|
||||
int n, len, checked;
|
||||
#else
|
||||
int n, c, len, checked;
|
||||
#endif
|
||||
|
||||
len = -1;
|
||||
checked = 0;
|
||||
dstp = dst;
|
||||
srcp = src;
|
||||
dstlim = dst + dstsiz;
|
||||
if (srcp < msg || srcp >= eom) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
/* Fetch next label in domain name. */
|
||||
while ((n = *srcp++) != 0) {
|
||||
/* Check for indirection. */
|
||||
switch (n & NS_CMPRSFLGS) {
|
||||
case 0:
|
||||
/* Limit checks. */
|
||||
if (dstp + n + 1 >= dstlim || srcp + n >= eom) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
checked += n + 1;
|
||||
*dstp++ = n;
|
||||
memcpy(dstp, srcp, n);
|
||||
dstp += n;
|
||||
srcp += n;
|
||||
break;
|
||||
|
||||
case NS_CMPRSFLGS:
|
||||
if (srcp >= eom) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
if (len < 0)
|
||||
len = srcp - src + 1;
|
||||
srcp = msg + (((n & 0x3f) << 8) | (*srcp & 0xff));
|
||||
if (srcp < msg || srcp >= eom) { /* Out of range. */
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
checked += 2;
|
||||
/*
|
||||
* Check for loops in the compressed name;
|
||||
* if we've looked at the whole message,
|
||||
* there must be a loop.
|
||||
*/
|
||||
if (checked >= eom - msg) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1); /* flag error */
|
||||
}
|
||||
}
|
||||
*dstp = '\0';
|
||||
if (len < 0)
|
||||
len = srcp - src;
|
||||
return (len);
|
||||
}
|
||||
|
||||
/*
|
||||
* ns_name_pack(src, dst, dstsiz, dnptrs, lastdnptr)
|
||||
* Pack domain name 'domain' into 'comp_dn'.
|
||||
* return:
|
||||
* Size of the compressed name, or -1.
|
||||
* notes:
|
||||
* 'dnptrs' is an array of pointers to previous compressed names.
|
||||
* dnptrs[0] is a pointer to the beginning of the message. The array
|
||||
* ends with NULL.
|
||||
* 'lastdnptr' is a pointer to the end of the array pointed to
|
||||
* by 'dnptrs'.
|
||||
* Side effects:
|
||||
* The list of pointers in dnptrs is updated for labels inserted into
|
||||
* the message as we compress the name. If 'dnptr' is NULL, we don't
|
||||
* try to compress names. If 'lastdnptr' is NULL, we don't update the
|
||||
* list.
|
||||
*/
|
||||
static int
|
||||
ns_name_pack(src, dst, dstsiz, dnptrs, lastdnptr)
|
||||
const u_char *src;
|
||||
u_char *dst;
|
||||
int dstsiz;
|
||||
const u_char **dnptrs;
|
||||
const u_char **lastdnptr;
|
||||
{
|
||||
u_char *dstp;
|
||||
const u_char **cpp, **lpp, *eob, *msg;
|
||||
const u_char *srcp;
|
||||
int n, l;
|
||||
|
||||
srcp = src;
|
||||
dstp = dst;
|
||||
eob = dstp + dstsiz;
|
||||
lpp = cpp = NULL;
|
||||
if (dnptrs != NULL) {
|
||||
if ((msg = *dnptrs++) != NULL) {
|
||||
for (cpp = dnptrs; *cpp != NULL; cpp++)
|
||||
(void)NULL;
|
||||
lpp = cpp; /* end of list to search */
|
||||
}
|
||||
} else
|
||||
msg = NULL;
|
||||
|
||||
/* make sure the domain we are about to add is legal */
|
||||
l = 0;
|
||||
do {
|
||||
n = *srcp;
|
||||
if ((n & NS_CMPRSFLGS) != 0) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
l += n + 1;
|
||||
if (l > MAXCDNAME) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
srcp += n + 1;
|
||||
} while (n != 0);
|
||||
|
||||
srcp = src;
|
||||
do {
|
||||
/* Look to see if we can use pointers. */
|
||||
n = *srcp;
|
||||
if (n != 0 && msg != NULL) {
|
||||
l = dn_find(srcp, msg, (const u_char * const *)dnptrs,
|
||||
(const u_char * const *)lpp);
|
||||
if (l >= 0) {
|
||||
if (dstp + 1 >= eob) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
*dstp++ = (l >> 8) | NS_CMPRSFLGS;
|
||||
*dstp++ = l % 256;
|
||||
return (dstp - dst);
|
||||
}
|
||||
/* Not found, save it. */
|
||||
if (lastdnptr != NULL && cpp < lastdnptr - 1 &&
|
||||
(dstp - msg) < 0x4000) {
|
||||
*cpp++ = dstp;
|
||||
*cpp = NULL;
|
||||
}
|
||||
}
|
||||
/* copy label to buffer */
|
||||
if (n & NS_CMPRSFLGS) { /* Should not happen. */
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
if (dstp + 1 + n >= eob) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
memcpy(dstp, srcp, n + 1);
|
||||
srcp += n + 1;
|
||||
dstp += n + 1;
|
||||
} while (n != 0);
|
||||
|
||||
if (dstp > eob) {
|
||||
if (msg != NULL)
|
||||
*lpp = NULL;
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
return (dstp - dst);
|
||||
}
|
||||
|
||||
/*
|
||||
* ns_name_uncompress(msg, eom, src, dst, dstsiz)
|
||||
* Expand compressed domain name to presentation format.
|
||||
* return:
|
||||
* Number of bytes read out of `src', or -1 (with errno set).
|
||||
* note:
|
||||
* Root domain returns as "." not "".
|
||||
*/
|
||||
static int
|
||||
ns_name_uncompress(msg, eom, src, dst, dstsiz)
|
||||
const u_char *msg;
|
||||
const u_char *eom;
|
||||
const u_char *src;
|
||||
char *dst;
|
||||
size_t dstsiz;
|
||||
{
|
||||
u_char tmp[NS_MAXCDNAME];
|
||||
int n;
|
||||
|
||||
if ((n = ns_name_unpack(msg, eom, src, tmp, sizeof tmp)) == -1)
|
||||
return (-1);
|
||||
if (ns_name_ntop(tmp, dst, dstsiz) == -1)
|
||||
return (-1);
|
||||
return (n);
|
||||
}
|
||||
|
||||
/*
|
||||
* ns_name_compress(src, dst, dstsiz, dnptrs, lastdnptr)
|
||||
* Compress a domain name into wire format, using compression pointers.
|
||||
* return:
|
||||
* Number of bytes consumed in `dst' or -1 (with errno set).
|
||||
* notes:
|
||||
* 'dnptrs' is an array of pointers to previous compressed names.
|
||||
* dnptrs[0] is a pointer to the beginning of the message.
|
||||
* The list ends with NULL. 'lastdnptr' is a pointer to the end of the
|
||||
* array pointed to by 'dnptrs'. Side effect is to update the list of
|
||||
* pointers for labels inserted into the message as we compress the name.
|
||||
* If 'dnptr' is NULL, we don't try to compress names. If 'lastdnptr'
|
||||
* is NULL, we don't update the list.
|
||||
*/
|
||||
static int
|
||||
ns_name_compress(src, dst, dstsiz, dnptrs, lastdnptr)
|
||||
const char *src;
|
||||
u_char *dst;
|
||||
size_t dstsiz;
|
||||
const u_char **dnptrs;
|
||||
const u_char **lastdnptr;
|
||||
{
|
||||
u_char tmp[NS_MAXCDNAME];
|
||||
|
||||
if (ns_name_pton(src, tmp, sizeof tmp) == -1)
|
||||
return (-1);
|
||||
return (ns_name_pack(tmp, dst, dstsiz, dnptrs, lastdnptr));
|
||||
}
|
||||
|
||||
/*
|
||||
* ns_name_skip(ptrptr, eom)
|
||||
* Advance *ptrptr to skip over the compressed name it points at.
|
||||
* return:
|
||||
* 0 on success, -1 (with errno set) on failure.
|
||||
*/
|
||||
static int
|
||||
ns_name_skip(ptrptr, eom)
|
||||
const u_char **ptrptr;
|
||||
const u_char *eom;
|
||||
{
|
||||
const u_char *cp;
|
||||
u_int n;
|
||||
|
||||
cp = *ptrptr;
|
||||
while (cp < eom && (n = *cp++) != 0) {
|
||||
/* Check for indirection. */
|
||||
switch (n & NS_CMPRSFLGS) {
|
||||
case 0: /* normal case, n == len */
|
||||
cp += n;
|
||||
continue;
|
||||
case NS_CMPRSFLGS: /* indirection */
|
||||
cp++;
|
||||
break;
|
||||
default: /* illegal type */
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
break;
|
||||
}
|
||||
if (cp > eom) {
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
*ptrptr = cp;
|
||||
return (0);
|
||||
}
|
||||
|
||||
/* Private. */
|
||||
|
||||
/*
|
||||
* special(ch)
|
||||
* Thinking in noninternationalized USASCII (per the DNS spec),
|
||||
* is this characted special ("in need of quoting") ?
|
||||
* return:
|
||||
* boolean.
|
||||
*/
|
||||
static int
|
||||
special(ch)
|
||||
int ch;
|
||||
{
|
||||
switch (ch) {
|
||||
case 0x22: /* '"' */
|
||||
case 0x2E: /* '.' */
|
||||
case 0x3B: /* ';' */
|
||||
case 0x5C: /* '\\' */
|
||||
/* Special modifiers in zone files. */
|
||||
case 0x40: /* '@' */
|
||||
case 0x24: /* '$' */
|
||||
return (1);
|
||||
default:
|
||||
return (0);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* printable(ch)
|
||||
* Thinking in noninternationalized USASCII (per the DNS spec),
|
||||
* is this character visible and not a space when printed ?
|
||||
* return:
|
||||
* boolean.
|
||||
*/
|
||||
static int
|
||||
printable(ch)
|
||||
int ch;
|
||||
{
|
||||
return (ch > 0x20 && ch < 0x7f);
|
||||
}
|
||||
|
||||
/*
|
||||
* Thinking in noninternationalized USASCII (per the DNS spec),
|
||||
* convert this character to lower case if it's upper case.
|
||||
*/
|
||||
static int
|
||||
mklower(ch)
|
||||
int ch;
|
||||
{
|
||||
if (ch >= 0x41 && ch <= 0x5A)
|
||||
return (ch + 0x20);
|
||||
return (ch);
|
||||
}
|
||||
|
||||
/*
|
||||
* dn_find(domain, msg, dnptrs, lastdnptr)
|
||||
* Search for the counted-label name in an array of compressed names.
|
||||
* return:
|
||||
* offset from msg if found, or -1.
|
||||
* notes:
|
||||
* dnptrs is the pointer to the first name on the list,
|
||||
* not the pointer to the start of the message.
|
||||
*/
|
||||
static int
|
||||
dn_find(domain, msg, dnptrs, lastdnptr)
|
||||
const u_char *domain;
|
||||
const u_char *msg;
|
||||
const u_char * const *dnptrs;
|
||||
const u_char * const *lastdnptr;
|
||||
{
|
||||
const u_char *dn, *cp, *sp;
|
||||
const u_char * const *cpp;
|
||||
u_int n;
|
||||
|
||||
for (cpp = dnptrs; cpp < lastdnptr; cpp++) {
|
||||
dn = domain;
|
||||
sp = cp = *cpp;
|
||||
while ((n = *cp++) != 0) {
|
||||
/*
|
||||
* check for indirection
|
||||
*/
|
||||
switch (n & NS_CMPRSFLGS) {
|
||||
case 0: /* normal case, n == len */
|
||||
if (n != *dn++)
|
||||
goto next;
|
||||
for ((void)NULL; n > 0; n--)
|
||||
if (mklower(*dn++) != mklower(*cp++))
|
||||
goto next;
|
||||
/* Is next root for both ? */
|
||||
if (*dn == '\0' && *cp == '\0')
|
||||
return (sp - msg);
|
||||
if (*dn)
|
||||
continue;
|
||||
goto next;
|
||||
|
||||
case NS_CMPRSFLGS: /* indirection */
|
||||
cp = msg + (((n & 0x3f) << 8) | *cp);
|
||||
break;
|
||||
|
||||
default: /* illegal type */
|
||||
__set_errno (EMSGSIZE);
|
||||
return (-1);
|
||||
}
|
||||
}
|
||||
next: ;
|
||||
}
|
||||
__set_errno (ENOENT);
|
||||
return (-1);
|
||||
}
|
||||
|
||||
/* -- From BIND 8.1.1. -- */
|
||||
|
@ -214,6 +214,8 @@ res_isourserver(inp)
|
||||
/* int
|
||||
* res_nameinquery(name, type, class, buf, eom)
|
||||
* look for (name,type,class) in the query section of packet (buf,eom)
|
||||
* requires:
|
||||
* buf + HFIXESDZ <= eom
|
||||
* returns:
|
||||
* -1 : format error
|
||||
* 0 : not found
|
||||
@ -238,6 +240,8 @@ res_nameinquery(name, type, class, buf, eom)
|
||||
if (n < 0)
|
||||
return (-1);
|
||||
cp += n;
|
||||
if (cp + 2 * INT16SZ > eom)
|
||||
return (-1);
|
||||
ttype = _getshort(cp); cp += INT16SZ;
|
||||
tclass = _getshort(cp); cp += INT16SZ;
|
||||
if (ttype == type &&
|
||||
@ -267,6 +271,9 @@ res_queriesmatch(buf1, eom1, buf2, eom2)
|
||||
register const u_char *cp = buf1 + HFIXEDSZ;
|
||||
int qdcount = ntohs(((HEADER*)buf1)->qdcount);
|
||||
|
||||
if (buf1 + HFIXEDSZ > eom1 || buf2 + HFIXEDSZ > eom2)
|
||||
return (-1);
|
||||
|
||||
if (qdcount != ntohs(((HEADER*)buf2)->qdcount))
|
||||
return (0);
|
||||
while (qdcount-- > 0) {
|
||||
@ -277,6 +284,8 @@ res_queriesmatch(buf1, eom1, buf2, eom2)
|
||||
if (n < 0)
|
||||
return (-1);
|
||||
cp += n;
|
||||
if (cp + 2 * INT16SZ > eom1)
|
||||
return (-1);
|
||||
ttype = _getshort(cp); cp += INT16SZ;
|
||||
tclass = _getshort(cp); cp += INT16SZ;
|
||||
if (!res_nameinquery(tname, ttype, tclass, buf2, eom2))
|
||||
@ -302,6 +311,10 @@ res_send(buf, buflen, ans, anssiz)
|
||||
/* errno should have been set by res_init() in this case. */
|
||||
return (-1);
|
||||
}
|
||||
if (anssiz < HFIXEDSZ) {
|
||||
__set_errno (EINVAL);
|
||||
return (-1);
|
||||
}
|
||||
DprintQ((_res.options & RES_DEBUG) || (_res.pfcode & RES_PRF_QUERY),
|
||||
(stdout, ";; res_send()\n"), buf, buflen);
|
||||
v_circuit = (_res.options & RES_USEVC) || buflen > PACKETSZ;
|
||||
@ -446,6 +459,17 @@ read_len:
|
||||
len = anssiz;
|
||||
} else
|
||||
len = resplen;
|
||||
if (len < HFIXEDSZ) {
|
||||
/*
|
||||
* Undersized message.
|
||||
*/
|
||||
Dprint(_res.options & RES_DEBUG,
|
||||
(stdout, ";; undersized: %d\n", len));
|
||||
terrno = EMSGSIZE;
|
||||
badns |= (1 << ns);
|
||||
res_close();
|
||||
goto next_ns;
|
||||
}
|
||||
cp = ans;
|
||||
while (len != 0 &&
|
||||
(n = read(s, (char *)cp, (int)len)) > 0) {
|
||||
@ -601,12 +625,12 @@ read_len:
|
||||
if ((long) timeout.tv_sec <= 0)
|
||||
timeout.tv_sec = 1;
|
||||
timeout.tv_usec = 0;
|
||||
if (s+1 > FD_SETSIZE) {
|
||||
Perror(stderr, "s+1 > FD_SETSIZE", EMFILE);
|
||||
wait:
|
||||
if (s < 0 || s >= FD_SETSIZE) {
|
||||
Perror(stderr, "s out-of-bounds", EMFILE);
|
||||
res_close();
|
||||
goto next_ns;
|
||||
}
|
||||
wait:
|
||||
FD_ZERO(&dsmask);
|
||||
FD_SET(s, &dsmask);
|
||||
n = select(s+1, &dsmask, (fd_set *)NULL,
|
||||
@ -638,6 +662,18 @@ read_len:
|
||||
goto next_ns;
|
||||
}
|
||||
gotsomewhere = 1;
|
||||
if (resplen < HFIXEDSZ) {
|
||||
/*
|
||||
* Undersized message.
|
||||
*/
|
||||
Dprint(_res.options & RES_DEBUG,
|
||||
(stdout, ";; undersized: %d\n",
|
||||
resplen));
|
||||
terrno = EMSGSIZE;
|
||||
badns |= (1 << ns);
|
||||
res_close();
|
||||
goto next_ns;
|
||||
}
|
||||
if (hp->id != anhp->id) {
|
||||
/*
|
||||
* response from old query, ignore it.
|
||||
|
@ -19,7 +19,7 @@
|
||||
|
||||
#include <sysdeps/generic/sysdep.h>
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
/* Syntactic details of assembler. */
|
||||
|
||||
@ -89,4 +89,4 @@
|
||||
#define mcount _mcount
|
||||
#endif
|
||||
|
||||
#endif /* ASSEMBLER */
|
||||
#endif /* __ASSEMBLER__ */
|
||||
|
@ -19,7 +19,7 @@
|
||||
|
||||
#include <sysdeps/generic/sysdep.h>
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
/* Syntactic details of assembler. */
|
||||
|
||||
@ -125,4 +125,4 @@ lose: SYSCALL_PIC_SETUP \
|
||||
#define L(name) name
|
||||
#endif
|
||||
|
||||
#endif /* ASSEMBLER */
|
||||
#endif /* __ASSEMBLER__ */
|
||||
|
@ -19,7 +19,7 @@
|
||||
|
||||
#include <sysdeps/generic/sysdep.h>
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
/* Syntactic details of assembler. */
|
||||
|
||||
@ -96,4 +96,4 @@
|
||||
#define JUMPTARGET(name) name
|
||||
#endif
|
||||
|
||||
#endif /* ASSEMBLER */
|
||||
#endif /* __ASSEMBLER__ */
|
||||
|
@ -1,4 +1,4 @@
|
||||
/* Copyright (C) 1993, 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
|
||||
/* Copyright (C) 1993, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
@ -23,11 +23,8 @@
|
||||
#include <hurd/port.h>
|
||||
|
||||
pid_t
|
||||
__wait4 (pid, stat_loc, options, usage)
|
||||
pid_t pid;
|
||||
__WAIT_STATUS_DEFN stat_loc;
|
||||
int options;
|
||||
struct rusage *usage;
|
||||
__wait4 (pid_t pid, __WAIT_STATUS_DEFN stat_loc, int options,
|
||||
struct rusage *usage)
|
||||
{
|
||||
pid_t dead;
|
||||
error_t err;
|
||||
|
@ -57,7 +57,7 @@ _start:\n\
|
||||
|
||||
#include <syscall.h>
|
||||
|
||||
#if defined (ASSEMBLER)
|
||||
#if defined (__ASSEMBLER__)
|
||||
|
||||
#define ALIGN 2
|
||||
|
||||
|
@ -26,8 +26,8 @@
|
||||
/*
|
||||
* HISTORY
|
||||
* $Log$
|
||||
* Revision 1.1 1993/08/03 22:25:15 roland
|
||||
* entered into RCS
|
||||
* Revision 1.2 1998/05/29 10:19:59 drepper
|
||||
* Use __ASSEMBLER__ test macro not ASSEMBLER.
|
||||
*
|
||||
* Revision 1.1 1993/08/03 22:25:15 roland
|
||||
* entered into RCS
|
||||
@ -43,7 +43,7 @@
|
||||
* Revision 2.6 91/06/19 11:59:44 rvb
|
||||
* Second byte of boothowto is flags for "startup" program.
|
||||
* [91/06/18 rvb]
|
||||
* Add ifndef ASSEMBLER so that vax_init.s can include it.
|
||||
* Add ifndef __ASSEMBLER__ so that vax_init.s can include it.
|
||||
* [91/06/11 rvb]
|
||||
*
|
||||
* Revision 2.5 91/05/14 17:40:11 mrt
|
||||
@ -145,9 +145,9 @@
|
||||
|
||||
|
||||
#ifdef KERNEL
|
||||
#ifndef ASSEMBLER
|
||||
#ifndef __ASSEMBLER__
|
||||
extern int boothowto;
|
||||
#endif ASSEMBLER
|
||||
#endif /* __ASSEMBLER__ */
|
||||
#endif
|
||||
|
||||
#endif /* _SYS_REBOOT_H_ */
|
||||
|
@ -16,7 +16,7 @@
|
||||
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
/* Get the Mach definitions of ENTRY and kernel_trap. */
|
||||
#include <mach/machine/syscall_sw.h>
|
||||
@ -45,7 +45,7 @@
|
||||
try to do anything else. Just to be safe, deallocate the reply port so
|
||||
bogons arriving on it don't foul up future RPCs. */
|
||||
|
||||
#ifndef ASSEMBLER
|
||||
#ifndef __ASSEMBLER__
|
||||
#define FATAL_PREPARE_INCLUDE <mach/mig_support.h>
|
||||
#define FATAL_PREPARE __mig_dealloc_reply_port (MACH_PORT_NULL)
|
||||
#endif
|
||||
|
@ -19,7 +19,7 @@
|
||||
|
||||
#include <sysdeps/unix/sysdep.h>
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
#ifdef __linux__
|
||||
# include <alpha/regdef.h>
|
||||
|
@ -20,7 +20,7 @@
|
||||
|
||||
#include <sysdeps/unix/sysdep.h>
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
#define POUND #
|
||||
|
||||
@ -53,4 +53,4 @@
|
||||
#define r1 d1
|
||||
#define MOVE(x,y) movel x , y
|
||||
|
||||
#endif /* ASSEMBLER */
|
||||
#endif /* __ASSEMBLER__ */
|
||||
|
@ -22,7 +22,7 @@
|
||||
|
||||
#include <sysdeps/unix/alpha/sysdep.h>
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
#include <machine/pal.h> /* get PAL_callsys */
|
||||
#include <regdef.h>
|
||||
|
@ -19,7 +19,7 @@
|
||||
|
||||
#include <sysdeps/unix/i386/sysdep.h>
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
/* Get the symbols for system call interrupts. */
|
||||
#include <machine/trap.h>
|
||||
@ -79,4 +79,4 @@
|
||||
#undef scratch
|
||||
#define scratch %edx /* Call-clobbered register for random use. */
|
||||
|
||||
#endif /* ASSEMBLER */
|
||||
#endif /* __ASSEMBLER__ */
|
||||
|
@ -18,7 +18,7 @@
|
||||
|
||||
#include <sysdeps/unix/sysdep.h>
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
#define POUND #
|
||||
|
||||
|
@ -18,7 +18,7 @@
|
||||
|
||||
#include <sysdeps/unix/sysdep.h>
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
#define POUND #
|
||||
|
||||
@ -59,4 +59,4 @@
|
||||
#define r1 d1
|
||||
#define MOVE(x,y) movel x , y
|
||||
|
||||
#endif /* ASSEMBLER */
|
||||
#endif /* __ASSEMBLER__ */
|
||||
|
@ -18,7 +18,7 @@
|
||||
|
||||
#include <sysdeps/unix/sysdep.h>
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
#ifdef __STDC__
|
||||
#define ENTRY(name) \
|
||||
@ -52,4 +52,4 @@
|
||||
|
||||
#define MOVE(x,y) movl x , y
|
||||
|
||||
#endif /* ASSEMBLER */
|
||||
#endif /* __ASSEMBLER__ */
|
||||
|
@ -19,7 +19,7 @@
|
||||
#include <sysdeps/unix/sysdep.h>
|
||||
#include <sysdeps/i386/sysdep.h>
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
/* This is defined as a separate macro so that other sysdep.h files
|
||||
can include this one and then redefine DO_CALL. */
|
||||
@ -33,4 +33,4 @@
|
||||
#define scratch %ecx /* Call-clobbered register for random use. */
|
||||
#define MOVE(x,y) movl x, y
|
||||
|
||||
#endif /* ASSEMBLER */
|
||||
#endif /* __ASSEMBLER__ */
|
||||
|
@ -19,7 +19,7 @@
|
||||
|
||||
#include <sysdeps/unix/sysdep.h>
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
#include <regdef.h>
|
||||
|
||||
|
@ -18,7 +18,7 @@
|
||||
|
||||
#include <sysdeps/unix/sysdep.h>
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
#ifdef NO_UNDERSCORES
|
||||
/* Since C identifiers are not normally prefixed with an underscore
|
||||
@ -57,4 +57,4 @@
|
||||
#define r1 %o1
|
||||
#define MOVE(x,y) mov x, y
|
||||
|
||||
#endif /* ASSEMBLER */
|
||||
#endif /* __ASSEMBLER__ */
|
||||
|
@ -17,7 +17,7 @@
|
||||
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
#include <asm/pal.h>
|
||||
#include <alpha/regdef.h>
|
||||
|
@ -33,7 +33,7 @@
|
||||
#define SYS_ify(syscall_name) (__NR_##syscall_name)
|
||||
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
/* Linux uses a negative return value to indicate syscall errors,
|
||||
unlike most Unices, which use the condition codes' carry flag.
|
||||
@ -104,6 +104,6 @@
|
||||
#define UNDOARGS_4 /* nothing */
|
||||
#define UNDOARGS_5 ldr r4, [sp];
|
||||
|
||||
#endif /* ASSEMBLER */
|
||||
#endif /* __ASSEMBLER__ */
|
||||
|
||||
#endif /* linux/arm/sysdep.h */
|
||||
|
@ -34,7 +34,7 @@
|
||||
#undef L
|
||||
#define L(name) .L##name
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
/* Linux uses a negative return value to indicate syscall errors,
|
||||
unlike most Unices, which use the condition codes' carry flag.
|
||||
@ -195,6 +195,6 @@ syscall_error: \
|
||||
#define _DOARGS_5(n) movl n(%esp), %edi; _DOARGS_4 (n-4)
|
||||
#define _POPARGS_5 _POPARGS_4; popl %edi
|
||||
|
||||
#endif /* ASSEMBLER */
|
||||
#endif /* __ASSEMBLER__ */
|
||||
|
||||
#endif /* linux/i386/sysdep.h */
|
||||
|
@ -32,7 +32,7 @@
|
||||
# define SYS_ify(syscall_name) __NR_/**/syscall_name
|
||||
#endif
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
/* Linux uses a negative return value to indicate syscall errors, unlike
|
||||
most Unices, which use the condition codes' carry flag.
|
||||
@ -149,4 +149,4 @@ syscall_error: \
|
||||
#define MOVE(x,y) movel x , y
|
||||
#endif
|
||||
|
||||
#endif /* ASSEMBLER */
|
||||
#endif /* __ASSEMBLER__ */
|
||||
|
@ -29,7 +29,7 @@
|
||||
# define SYS_ify(syscall_name) __NR_/**/syscall_name
|
||||
#endif
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
/* This seems to always be the case on PPC. */
|
||||
#define ALIGNARG(log2) log2
|
||||
@ -141,4 +141,4 @@
|
||||
#undef L
|
||||
#define L(x) .L##x
|
||||
|
||||
#endif /* ASSEMBLER */
|
||||
#endif /* __ASSEMBLER__ */
|
||||
|
@ -25,7 +25,7 @@
|
||||
#undef SYS_ify
|
||||
#define SYS_ify(syscall_name) __NR_##syscall_name
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
#ifdef DONT_LOAD_G1
|
||||
# define LOADSYSCALL(x)
|
||||
@ -82,6 +82,6 @@
|
||||
SYSCALL_ERROR_HANDLER; \
|
||||
9000:;
|
||||
|
||||
#endif /* ASSEMBLER */
|
||||
#endif /* __ASSEMBLER__ */
|
||||
|
||||
#endif /* linux/sparc/sysdep.h */
|
||||
|
@ -25,7 +25,7 @@
|
||||
#undef SYS_ify
|
||||
#define SYS_ify(syscall_name) __NR_##syscall_name
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
#ifdef DONT_LOAD_G1
|
||||
# define LOADSYSCALL(x)
|
||||
@ -116,7 +116,7 @@
|
||||
#define r1 %o1
|
||||
#define MOVE(x,y) mov x, y
|
||||
|
||||
#endif /* ASSEMBLER */
|
||||
#endif /* __ASSEMBLER__ */
|
||||
|
||||
/* This is the offset from the %sp to the backing store above the
|
||||
register windows. So if you poke stack memory directly you add this. */
|
||||
|
@ -24,7 +24,7 @@
|
||||
|
||||
#include <sysdeps/unix/sysdep.h>
|
||||
|
||||
#ifdef ASSEMBLER
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
/* As of gcc-2.6.0, it complains about pound signs in front of things
|
||||
that aren't arguments to the macro. So we use this to pull it off
|
||||
@ -51,4 +51,4 @@
|
||||
#define r1 %o1
|
||||
#define MOVE(x,y) mov x, y
|
||||
|
||||
#endif /* ASSEMBLER */
|
||||
#endif /* __ASSEMBLER__ */
|
||||
|
Loading…
Reference in New Issue
Block a user