mirror of
https://github.com/netwide-assembler/nasm.git
synced 2025-03-31 18:20:22 +08:00
Portability improvements to nasm_realpath()
Try harder to nasm_realpath() to be as portable as possible. Move it to a separate file since it has gotten complex enough that it is cleaner that way. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
H. Peter Anvin
parent
3115e789d6
commit
4627e695a5
15
Makefile.in
15
Makefile.in
@ -74,6 +74,7 @@ endif
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#-- Begin File Lists --#
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NASM = nasm.$(O) nasmlib.$(O) ver.$(O) \
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raa.$(O) saa.$(O) rbtree.$(O) \
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realpath.$(O) \
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float.$(O) insnsa.$(O) insnsb.$(O) \
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directiv.$(O) \
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assemble.$(O) labels.$(O) hashtbl.$(O) crc64.$(O) parser.$(O) \
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@ -84,15 +85,16 @@ NASM = nasm.$(O) nasmlib.$(O) ver.$(O) \
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output/outelfx32.$(O) \
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output/outobj.$(O) output/outas86.$(O) output/outrdf2.$(O) \
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output/outdbg.$(O) output/outieee.$(O) output/outmac32.$(O) \
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output/outmac64.$(O) preproc.$(O) quote.$(O) pptok.$(O) \
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output/outmac64.$(O) \
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md5c.$(O) output/codeview.$(O) \
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preproc.$(O) quote.$(O) pptok.$(O) \
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macros.$(O) listing.$(O) eval.$(O) exprlib.$(O) stdscan.$(O) \
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strfunc.$(O) tokhash.$(O) regvals.$(O) regflags.$(O) \
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ilog2.$(O) \
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lib/strlcpy.$(O) \
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preproc-nop.$(O) \
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disp8.$(O) \
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iflag.$(O) \
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md5c.$(O) output/codeview.$(O)
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iflag.$(O)
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NDISASM = ndisasm.$(O) disasm.$(O) sync.$(O) nasmlib.$(O) ver.$(O) \
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insnsd.$(O) insnsb.$(O) insnsn.$(O) regs.$(O) regdis.$(O) \
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@ -343,6 +345,7 @@ listing.$(O): listing.c compiler.h config.h directiv.h insnsi.h listing.h \
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macros.$(O): macros.c compiler.h config.h directiv.h hashtbl.h insnsi.h \
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nasm.h nasmlib.h opflags.h output/outform.h pptok.h preproc.h regs.h \
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tables.h
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md5c.$(O): md5c.c md5.h
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nasm.$(O): nasm.c assemble.h compiler.h config.h directiv.h eval.h float.h \
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iflag.h iflaggen.h insns.h insnsi.h labels.h listing.h nasm.h nasmlib.h \
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opflags.h output/outform.h parser.h pptok.h preproc.h raa.h regs.h saa.h \
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@ -353,6 +356,9 @@ nasmlib.$(O): nasmlib.c compiler.h config.h directiv.h iflag.h iflaggen.h \
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ndisasm.$(O): ndisasm.c compiler.h config.h directiv.h disasm.h iflag.h \
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iflaggen.h insns.h insnsi.h nasm.h nasmlib.h opflags.h pptok.h preproc.h \
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regs.h sync.h tables.h tokens.h
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output/codeview.$(O): output/codeview.c compiler.h config.h directiv.h \
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insnsi.h md5.h nasm.h nasmlib.h opflags.h output/outlib.h output/pecoff.h \
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pptok.h preproc.h regs.h saa.h tables.h version.h
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output/nulldbg.$(O): output/nulldbg.c compiler.h config.h directiv.h \
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insnsi.h nasm.h nasmlib.h opflags.h output/outlib.h pptok.h preproc.h \
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regs.h tables.h
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@ -423,6 +429,9 @@ preproc.$(O): preproc.c compiler.h config.h directiv.h eval.h hashtbl.h \
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quote.$(O): quote.c compiler.h config.h nasmlib.h quote.h
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raa.$(O): raa.c compiler.h config.h nasmlib.h raa.h
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rbtree.$(O): rbtree.c compiler.h config.h rbtree.h
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realpath.$(O): realpath.c compiler.h config.h directiv.h iflag.h iflaggen.h \
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insns.h insnsi.h nasm.h nasmlib.h opflags.h pptok.h preproc.h regs.h \
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tables.h tokens.h
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regdis.$(O): regdis.c regdis.h regs.h
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regflags.$(O): regflags.c compiler.h config.h directiv.h insnsi.h nasm.h \
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nasmlib.h opflags.h pptok.h preproc.h regs.h tables.h
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@ -25,7 +25,8 @@ CC = cl
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LD = link
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CFLAGS = $(CFLAGS) /W2
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BUILD_CFLAGS = $(CFLAGS) /I$(srcdir)/inttypes
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INTERNAL_CFLAGS = /I$(srcdir) /I. /DHAVE__SNPRINTF /DHAVE__VSNPRINTF
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INTERNAL_CFLAGS = /I$(srcdir) /I. \
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/DHAVE__SNPRINTF /DHAVE__VSNPRINTF /DHAVE__FULLPATH
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ALL_CFLAGS = $(BUILD_CFLAGS) $(INTERNAL_CFLAGS)
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LDFLAGS = $(LDFLAGS) /SUBSYSTEM:CONSOLE
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LIBS =
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@ -44,6 +45,7 @@ X = .exe
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# Edit in Makefile.in, not here!
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NASM = nasm.$(O) nasmlib.$(O) ver.$(O) \
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raa.$(O) saa.$(O) rbtree.$(O) \
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realpath.$(O) \
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float.$(O) insnsa.$(O) insnsb.$(O) \
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directiv.$(O) \
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assemble.$(O) labels.$(O) hashtbl.$(O) crc64.$(O) parser.$(O) \
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@ -54,15 +56,16 @@ NASM = nasm.$(O) nasmlib.$(O) ver.$(O) \
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output/outelfx32.$(O) \
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output/outobj.$(O) output/outas86.$(O) output/outrdf2.$(O) \
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output/outdbg.$(O) output/outieee.$(O) output/outmac32.$(O) \
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output/outmac64.$(O) preproc.$(O) quote.$(O) pptok.$(O) \
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output/outmac64.$(O) \
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md5c.$(O) output/codeview.$(O) \
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preproc.$(O) quote.$(O) pptok.$(O) \
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macros.$(O) listing.$(O) eval.$(O) exprlib.$(O) stdscan.$(O) \
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strfunc.$(O) tokhash.$(O) regvals.$(O) regflags.$(O) \
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ilog2.$(O) \
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lib/strlcpy.$(O) \
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preproc-nop.$(O) \
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disp8.$(O) \
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iflag.$(O) \
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md5c.$(O) output/codeview.$(O)
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iflag.$(O)
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NDISASM = ndisasm.$(O) disasm.$(O) sync.$(O) nasmlib.$(O) ver.$(O) \
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insnsd.$(O) insnsb.$(O) insnsn.$(O) regs.$(O) regdis.$(O) \
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@ -263,6 +266,7 @@ listing.$(O): listing.c compiler.h directiv.h insnsi.h listing.h nasm.h \
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nasmlib.h opflags.h pptok.h preproc.h regs.h tables.h
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macros.$(O): macros.c compiler.h directiv.h hashtbl.h insnsi.h nasm.h \
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nasmlib.h opflags.h output/outform.h pptok.h preproc.h regs.h tables.h
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md5c.$(O): md5c.c md5.h
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nasm.$(O): nasm.c assemble.h compiler.h directiv.h eval.h float.h iflag.h \
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iflaggen.h insns.h insnsi.h labels.h listing.h nasm.h nasmlib.h opflags.h \
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output/outform.h parser.h pptok.h preproc.h raa.h regs.h saa.h stdscan.h \
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@ -273,6 +277,9 @@ nasmlib.$(O): nasmlib.c compiler.h directiv.h iflag.h iflaggen.h insns.h \
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ndisasm.$(O): ndisasm.c compiler.h directiv.h disasm.h iflag.h iflaggen.h \
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insns.h insnsi.h nasm.h nasmlib.h opflags.h pptok.h preproc.h regs.h sync.h \
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tables.h tokens.h
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output/codeview.$(O): output/codeview.c compiler.h directiv.h insnsi.h md5.h \
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nasm.h nasmlib.h opflags.h output/outlib.h output/pecoff.h pptok.h \
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preproc.h regs.h saa.h tables.h version.h
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output/nulldbg.$(O): output/nulldbg.c compiler.h directiv.h insnsi.h nasm.h \
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nasmlib.h opflags.h output/outlib.h pptok.h preproc.h regs.h tables.h
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output/nullout.$(O): output/nullout.c compiler.h directiv.h insnsi.h nasm.h \
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@ -337,6 +344,9 @@ preproc.$(O): preproc.c compiler.h directiv.h eval.h hashtbl.h insnsi.h \
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quote.$(O): quote.c compiler.h nasmlib.h quote.h
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raa.$(O): raa.c compiler.h nasmlib.h raa.h
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rbtree.$(O): rbtree.c compiler.h rbtree.h
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realpath.$(O): realpath.c compiler.h directiv.h iflag.h iflaggen.h insns.h \
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insnsi.h nasm.h nasmlib.h opflags.h pptok.h preproc.h regs.h tables.h \
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tokens.h
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regdis.$(O): regdis.c regdis.h regs.h
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regflags.$(O): regflags.c compiler.h directiv.h insnsi.h nasm.h nasmlib.h \
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opflags.h pptok.h preproc.h regs.h tables.h
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@ -32,6 +32,7 @@ O = o
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# Edit in Makefile.in, not here!
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NASM = nasm.o nasmlib.o ver.o \
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raa.o saa.o rbtree.o \
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realpath.o \
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float.o insnsa.o insnsb.o \
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directiv.o \
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assemble.o labels.o hashtbl.o crc64.o parser.o \
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@ -42,7 +43,9 @@ NASM = nasm.o nasmlib.o ver.o \
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outelfx32.o \
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outobj.o outas86.o outrdf2.o \
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outdbg.o outieee.o outmac32.o \
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outmac64.o preproc.o quote.o pptok.o \
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outmac64.o \
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md5c.o codeview.o \
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preproc.o quote.o pptok.o \
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macros.o listing.o eval.o exprlib.o stdscan.o \
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strfunc.o tokhash.o regvals.o regflags.o \
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ilog2.o \
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@ -171,6 +174,7 @@ listing.o: listing.c compiler.h config.h directiv.h insnsi.h listing.h \
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nasm.h nasmlib.h opflags.h pptok.h preproc.h regs.h tables.h
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macros.o: macros.c compiler.h config.h directiv.h hashtbl.h insnsi.h nasm.h \
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nasmlib.h opflags.h outform.h pptok.h preproc.h regs.h tables.h
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md5c.o: md5c.c md5.h
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nasm.o: nasm.c assemble.h compiler.h config.h directiv.h eval.h float.h \
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iflag.h iflaggen.h insns.h insnsi.h labels.h listing.h nasm.h nasmlib.h \
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opflags.h outform.h parser.h pptok.h preproc.h raa.h regs.h saa.h stdscan.h \
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@ -181,6 +185,9 @@ nasmlib.o: nasmlib.c compiler.h config.h directiv.h iflag.h iflaggen.h \
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ndisasm.o: ndisasm.c compiler.h config.h directiv.h disasm.h iflag.h \
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iflaggen.h insns.h insnsi.h nasm.h nasmlib.h opflags.h pptok.h preproc.h \
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regs.h sync.h tables.h tokens.h
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codeview.o: codeview.c compiler.h config.h directiv.h insnsi.h md5.h nasm.h \
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nasmlib.h opflags.h outlib.h pecoff.h pptok.h preproc.h regs.h saa.h \
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tables.h version.h
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nulldbg.o: nulldbg.c compiler.h config.h directiv.h insnsi.h nasm.h \
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nasmlib.h opflags.h outlib.h pptok.h preproc.h regs.h tables.h
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nullout.o: nullout.c compiler.h config.h directiv.h insnsi.h nasm.h \
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@ -241,6 +248,9 @@ preproc.o: preproc.c compiler.h config.h directiv.h eval.h hashtbl.h \
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quote.o: quote.c compiler.h config.h nasmlib.h quote.h
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raa.o: raa.c compiler.h config.h nasmlib.h raa.h
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rbtree.o: rbtree.c compiler.h config.h rbtree.h
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realpath.o: realpath.c compiler.h config.h directiv.h iflag.h iflaggen.h \
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insns.h insnsi.h nasm.h nasmlib.h opflags.h pptok.h preproc.h regs.h \
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tables.h tokens.h
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regdis.o: regdis.c regdis.h regs.h
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regflags.o: regflags.c compiler.h config.h directiv.h insnsi.h nasm.h \
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nasmlib.h opflags.h pptok.h preproc.h regs.h tables.h
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@ -48,6 +48,7 @@ X = .exe
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# Edit in Makefile.in, not here!
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NASM = nasm.$(O) nasmlib.$(O) ver.$(O) &
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raa.$(O) saa.$(O) rbtree.$(O) &
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realpath.$(O) &
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float.$(O) insnsa.$(O) insnsb.$(O) &
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directiv.$(O) &
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assemble.$(O) labels.$(O) hashtbl.$(O) crc64.$(O) parser.$(O) &
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@ -58,7 +59,9 @@ NASM = nasm.$(O) nasmlib.$(O) ver.$(O) &
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output/outelfx32.$(O) &
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output/outobj.$(O) output/outas86.$(O) output/outrdf2.$(O) &
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output/outdbg.$(O) output/outieee.$(O) output/outmac32.$(O) &
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output/outmac64.$(O) preproc.$(O) quote.$(O) pptok.$(O) &
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output/outmac64.$(O) &
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md5c.$(O) output/codeview.$(O) &
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preproc.$(O) quote.$(O) pptok.$(O) &
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macros.$(O) listing.$(O) eval.$(O) exprlib.$(O) stdscan.$(O) &
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strfunc.$(O) tokhash.$(O) regvals.$(O) regflags.$(O) &
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ilog2.$(O) &
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@ -309,6 +312,7 @@ listing.$(O): listing.c compiler.h config.h directiv.h insnsi.h listing.h &
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macros.$(O): macros.c compiler.h config.h directiv.h hashtbl.h insnsi.h &
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nasm.h nasmlib.h opflags.h output/outform.h pptok.h preproc.h regs.h &
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tables.h
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md5c.$(O): md5c.c md5.h
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nasm.$(O): nasm.c assemble.h compiler.h config.h directiv.h eval.h float.h &
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iflag.h iflaggen.h insns.h insnsi.h labels.h listing.h nasm.h nasmlib.h &
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opflags.h output/outform.h parser.h pptok.h preproc.h raa.h regs.h saa.h &
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@ -319,6 +323,9 @@ nasmlib.$(O): nasmlib.c compiler.h config.h directiv.h iflag.h iflaggen.h &
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ndisasm.$(O): ndisasm.c compiler.h config.h directiv.h disasm.h iflag.h &
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iflaggen.h insns.h insnsi.h nasm.h nasmlib.h opflags.h pptok.h preproc.h &
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regs.h sync.h tables.h tokens.h
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output/codeview.$(O): output/codeview.c compiler.h config.h directiv.h &
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insnsi.h md5.h nasm.h nasmlib.h opflags.h output/outlib.h output/pecoff.h &
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pptok.h preproc.h regs.h saa.h tables.h version.h
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output/nulldbg.$(O): output/nulldbg.c compiler.h config.h directiv.h &
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insnsi.h nasm.h nasmlib.h opflags.h output/outlib.h pptok.h preproc.h &
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regs.h tables.h
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@ -389,6 +396,9 @@ preproc.$(O): preproc.c compiler.h config.h directiv.h eval.h hashtbl.h &
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quote.$(O): quote.c compiler.h config.h nasmlib.h quote.h
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raa.$(O): raa.c compiler.h config.h nasmlib.h raa.h
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rbtree.$(O): rbtree.c compiler.h config.h rbtree.h
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realpath.$(O): realpath.c compiler.h config.h directiv.h iflag.h iflaggen.h &
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insns.h insnsi.h nasm.h nasmlib.h opflags.h pptok.h preproc.h regs.h &
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tables.h tokens.h
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regdis.$(O): regdis.c regdis.h regs.h
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regflags.$(O): regflags.c compiler.h config.h directiv.h insnsi.h nasm.h &
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nasmlib.h opflags.h pptok.h preproc.h regs.h tables.h
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@ -59,6 +59,7 @@ X = .exe
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# Edit in Makefile.in, not here!
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NASM = nasm.$(O) nasmlib.$(O) ver.$(O) \
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raa.$(O) saa.$(O) rbtree.$(O) \
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realpath.$(O) \
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float.$(O) insnsa.$(O) insnsb.$(O) \
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directiv.$(O) \
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assemble.$(O) labels.$(O) hashtbl.$(O) crc64.$(O) parser.$(O) \
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@ -69,7 +70,9 @@ NASM = nasm.$(O) nasmlib.$(O) ver.$(O) \
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output/outelfx32.$(O) \
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output/outobj.$(O) output/outas86.$(O) output/outrdf2.$(O) \
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output/outdbg.$(O) output/outieee.$(O) output/outmac32.$(O) \
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output/outmac64.$(O) preproc.$(O) quote.$(O) pptok.$(O) \
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output/outmac64.$(O) \
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md5c.$(O) output/codeview.$(O) \
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preproc.$(O) quote.$(O) pptok.$(O) \
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macros.$(O) listing.$(O) eval.$(O) exprlib.$(O) stdscan.$(O) \
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strfunc.$(O) tokhash.$(O) regvals.$(O) regflags.$(O) \
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ilog2.$(O) \
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@ -277,6 +280,7 @@ listing.$(O): listing.c compiler.h directiv.h insnsi.h listing.h nasm.h \
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nasmlib.h opflags.h pptok.h preproc.h regs.h tables.h
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macros.$(O): macros.c compiler.h directiv.h hashtbl.h insnsi.h nasm.h \
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nasmlib.h opflags.h output/outform.h pptok.h preproc.h regs.h tables.h
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md5c.$(O): md5c.c md5.h
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nasm.$(O): nasm.c assemble.h compiler.h directiv.h eval.h float.h iflag.h \
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iflaggen.h insns.h insnsi.h labels.h listing.h nasm.h nasmlib.h opflags.h \
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output/outform.h parser.h pptok.h preproc.h raa.h regs.h saa.h stdscan.h \
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@ -287,6 +291,9 @@ nasmlib.$(O): nasmlib.c compiler.h directiv.h iflag.h iflaggen.h insns.h \
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ndisasm.$(O): ndisasm.c compiler.h directiv.h disasm.h iflag.h iflaggen.h \
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insns.h insnsi.h nasm.h nasmlib.h opflags.h pptok.h preproc.h regs.h sync.h \
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tables.h tokens.h
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output/codeview.$(O): output/codeview.c compiler.h directiv.h insnsi.h md5.h \
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nasm.h nasmlib.h opflags.h output/outlib.h output/pecoff.h pptok.h \
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preproc.h regs.h saa.h tables.h version.h
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output/nulldbg.$(O): output/nulldbg.c compiler.h directiv.h insnsi.h nasm.h \
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nasmlib.h opflags.h output/outlib.h pptok.h preproc.h regs.h tables.h
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output/nullout.$(O): output/nullout.c compiler.h directiv.h insnsi.h nasm.h \
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@ -351,6 +358,9 @@ preproc.$(O): preproc.c compiler.h directiv.h eval.h hashtbl.h insnsi.h \
|
||||
quote.$(O): quote.c compiler.h nasmlib.h quote.h
|
||||
raa.$(O): raa.c compiler.h nasmlib.h raa.h
|
||||
rbtree.$(O): rbtree.c compiler.h rbtree.h
|
||||
realpath.$(O): realpath.c compiler.h directiv.h iflag.h iflaggen.h insns.h \
|
||||
insnsi.h nasm.h nasmlib.h opflags.h pptok.h preproc.h regs.h tables.h \
|
||||
tokens.h
|
||||
regdis.$(O): regdis.c regdis.h regs.h
|
||||
regflags.$(O): regflags.c compiler.h directiv.h insnsi.h nasm.h nasmlib.h \
|
||||
opflags.h pptok.h preproc.h regs.h tables.h
|
||||
|
||||
11
configure.in
11
configure.in
@ -126,6 +126,12 @@ AC_CHECK_HEADERS(strings.h)
|
||||
dnl Look for <stdbool.h>
|
||||
AC_CHECK_HEADERS(stdbool.h)
|
||||
|
||||
dnl Look for <unistd.h>
|
||||
AC_CHECK_HEADERS(unistd.h)
|
||||
|
||||
dnl Look for <sys/param.h>
|
||||
AC_CHECK_HEADERS(sys/param.h)
|
||||
|
||||
dnl Checks for library functions.
|
||||
AC_SUBST(XOBJS)
|
||||
|
||||
@ -155,6 +161,11 @@ AC_CHECK_FUNCS(strlcpy)
|
||||
AC_CHECK_FUNCS(getuid)
|
||||
AC_CHECK_FUNCS(getgid)
|
||||
|
||||
AC_CHECK_FUNCS(realpath)
|
||||
AC_CHECK_FUNCS(canonicalize_file_name)
|
||||
AC_CHECK_FUNCS(_fullpath)
|
||||
AC_CHECK_FUNCS(pathconf)
|
||||
|
||||
dnl Check for functions that might not be declared in the headers for
|
||||
dnl various idiotic reasons (mostly because of library authors
|
||||
dnl abusing the meaning of __STRICT_ANSI__)
|
||||
|
||||
12
nasmlib.c
12
nasmlib.c
@ -696,18 +696,6 @@ char *nasm_opt_val(char *p, char **val, char **next)
|
||||
return p;
|
||||
}
|
||||
|
||||
#ifdef _WIN32
|
||||
char *nasm_realpath(const char *rel_path)
|
||||
{
|
||||
return _fullpath(NULL, rel_path, 0);
|
||||
}
|
||||
#else
|
||||
char *nasm_realpath(const char *rel_path)
|
||||
{
|
||||
return realpath(rel_path, NULL);
|
||||
}
|
||||
#endif
|
||||
|
||||
/*
|
||||
* initialized data bytes length from opcode
|
||||
*/
|
||||
|
||||
131
realpath.c
Normal file
131
realpath.c
Normal file
@ -0,0 +1,131 @@
|
||||
/* ----------------------------------------------------------------------- *
|
||||
*
|
||||
* Copyright 2016 The NASM Authors - All Rights Reserved
|
||||
* See the file AUTHORS included with the NASM distribution for
|
||||
* the specific copyright holders.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following
|
||||
* conditions are met:
|
||||
*
|
||||
* * Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* * Redistributions in binary form must reproduce the above
|
||||
* copyright notice, this list of conditions and the following
|
||||
* disclaimer in the documentation and/or other materials provided
|
||||
* with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
||||
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
|
||||
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
|
||||
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||||
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
||||
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
|
||||
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* ----------------------------------------------------------------------- */
|
||||
|
||||
/*
|
||||
* realpath.c As system-independent as possible implementation of realpath()
|
||||
*/
|
||||
|
||||
#include "compiler.h"
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <errno.h>
|
||||
#include <limits.h>
|
||||
#ifdef HAVE_UNISTD_H
|
||||
# include <unistd.h>
|
||||
#endif
|
||||
#ifdef HAVE_SYS_PARAM_H
|
||||
# include <sys/param.h>
|
||||
#endif
|
||||
|
||||
#include "nasmlib.h"
|
||||
|
||||
#if 0 /* def HAVE_CANONICALIZE_FILE_NAME */
|
||||
|
||||
/*
|
||||
* GNU-specific, but avoids the realpath(..., NULL)
|
||||
* portability problem if it exists.
|
||||
*/
|
||||
char *nasm_realpath(const char *rel_path)
|
||||
{
|
||||
return canonicalize_file_name(rel_path);
|
||||
}
|
||||
|
||||
#elif defined(HAVE_REALPATH)
|
||||
|
||||
/*
|
||||
* POSIX.1-2008 defines realpath(..., NULL); POSIX.1-2001 doesn't guarantee
|
||||
* that a NULL second argument is supported.
|
||||
*/
|
||||
|
||||
char *nasm_realpath(const char *rel_path)
|
||||
{
|
||||
char *buf;
|
||||
|
||||
buf = realpath(rel_path, NULL);
|
||||
if (buf)
|
||||
return buf;
|
||||
|
||||
/* Not all implemetations of realpath() support a NULL second argument */
|
||||
if (errno == EINVAL) {
|
||||
int path_max = -1;
|
||||
char *buf;
|
||||
|
||||
# ifdef PATH_MAX
|
||||
path_max = PATH_MAX; /* SUSv2 */
|
||||
# elif defined(MAXPATHLEN)
|
||||
path_max = MAXPATHLEN; /* Solaris */
|
||||
# elif defined(HAVE_PATHCONF) && defined(_PC_PATH_MAX)
|
||||
path_max = pathconf(path, _PC_PATH_MAX); /* POSIX */
|
||||
# endif
|
||||
if (path_max < 0)
|
||||
path_max = 65536; /* Crazily high, we hope */
|
||||
|
||||
buf = nasm_malloc(path_max);
|
||||
|
||||
if (!realpath(rel_path, buf)) {
|
||||
nasm_free(buf);
|
||||
buf = NULL;
|
||||
} else {
|
||||
/* On some systems, pathconf() can return a very large value */
|
||||
|
||||
buf[path_max - 1] = '\0'; /* Just in case overrun is possible */
|
||||
buf = nasm_realloc(buf, strlen(buf) + 1);
|
||||
}
|
||||
}
|
||||
|
||||
return buf;
|
||||
}
|
||||
|
||||
#elif defined(HAVE__FULLPATH)
|
||||
|
||||
/*
|
||||
* win32/win64 API
|
||||
*/
|
||||
|
||||
char *nasm_realpath(const char *rel_path)
|
||||
{
|
||||
return _fullpath(NULL, rel_path, 0);
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
/*
|
||||
* There is nothing we know how to do here, so hope it just works anyway.
|
||||
*/
|
||||
|
||||
char *nasm_realpath(const char *rel_path)
|
||||
{
|
||||
return nasm_strdup(rel_path);
|
||||
}
|
||||
|
||||
#endif
|
||||
Loading…
x
Reference in New Issue
Block a user