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2000-06-14  Ulrich Drepper  <drepper@redhat.com>

	* misc/syslog.c (vsyslog): Allow open_memstream to fail without
	crashing the application.  Emit some simple error message.
	Reported by mju@panasas.com [PR libc/1769].
This commit is contained in:
Ulrich Drepper 2000-06-14 07:14:09 +00:00
parent 38161ac76e
commit 594cee6c49
3 changed files with 63 additions and 25 deletions
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6
ChangeLog
View File

@ -1,3 +1,9 @@
2000-06-14 Ulrich Drepper <drepper@redhat.com>
* misc/syslog.c (vsyslog): Allow open_memstream to fail without
crashing the application. Emit some simple error message.
Reported by mju@panasas.com [PR libc/1769].
2000-06-13 Ulrich Drepper <drepper@redhat.com>
* malloc/Makefile (distribute): Add memprof.sh and memprofstat.c.

6
NEWS
View File

@ -47,6 +47,12 @@ Version 2.2
* A port to Hitachi SH3 and SH4 has been contributed by Kazumoto Kojima
and Yutaka Niibe.
* POSIX clocks and timers implemented by Kaz Kylheku and Ulrich Drepper.
* POSIX spawn function family implemented by Ulrich Drepper.
* POSIX spinlocks are now available.
Version 2.1.3

76
misc/syslog.c
View File

@ -120,6 +120,7 @@ vsyslog(pri, fmt, ap)
struct sigaction *oldaction_ptr = NULL;
int sigpipe;
int saved_errno = errno;
char failbuf[3 * sizeof (pid_t) + sizeof "out of memory []"];
#define INTERNALLOG LOG_ERR|LOG_CONS|LOG_PERROR|LOG_PID
/* Check for invalid bits. */
@ -139,36 +140,61 @@ vsyslog(pri, fmt, ap)
/* Build the message in a memory-buffer stream. */
f = open_memstream (&buf, &bufsize);
prioff = fprintf (f, "<%d>", pri);
(void) time (&now);
if (f == NULL)
{
/* We cannot get a stream. There is not much we can do but
emitting an error messages. */
char numbuf[3 * sizeof (pid_t)];
char *nump;
char *endp = __stpcpy (failbuf, "out of memory [");
pid_t pid = __getpid ();
nump = numbuf + sizeof (numbuf);
/* The PID can never be zero. */
do
*--nump = '0' + pid % 10;
while ((pid /= 10) != 0);
endp = __mempcpy (endp, nump, (nump + sizeof (numbuf)) - nump);
*endp++ = ']';
*endp = '\0';
buf = failbuf;
bufsize = endp - failbuf;
}
else
{
prioff = fprintf (f, "<%d>", pri);
(void) time (&now);
#ifdef USE_IN_LIBIO
f->_IO_write_ptr += strftime (f->_IO_write_ptr,
f->_IO_write_end - f->_IO_write_ptr,
"%h %e %T ",
__localtime_r (&now, &now_tm));
f->_IO_write_ptr += strftime (f->_IO_write_ptr,
f->_IO_write_end - f->_IO_write_ptr,
"%h %e %T ",
__localtime_r (&now, &now_tm));
#else
f->__bufp += strftime (f->__bufp, f->__put_limit - f->__bufp,
"%h %e %T ", __localtime_r (&now, &now_tm));
f->__bufp += strftime (f->__bufp, f->__put_limit - f->__bufp,
"%h %e %T ", __localtime_r (&now, &now_tm));
#endif
msgoff = ftell (f);
if (LogTag == NULL)
LogTag = __progname;
if (LogTag != NULL)
fputs_unlocked (LogTag, f);
if (LogStat & LOG_PID)
fprintf (f, "[%d]", __getpid ());
if (LogTag != NULL)
putc_unlocked (':', f), putc_unlocked (' ', f);
msgoff = ftell (f);
if (LogTag == NULL)
LogTag = __progname;
if (LogTag != NULL)
fputs_unlocked (LogTag, f);
if (LogStat & LOG_PID)
fprintf (f, "[%d]", __getpid ());
if (LogTag != NULL)
putc_unlocked (':', f), putc_unlocked (' ', f);
/* Restore errno for %m format. */
__set_errno (saved_errno);
/* Restore errno for %m format. */
__set_errno (saved_errno);
/* We have the header. Print the user's format into the buffer. */
vfprintf (f, fmt, ap);
/* We have the header. Print the user's format into the
buffer. */
vfprintf (f, fmt, ap);
/* Close the memory stream; this will finalize the data
into a malloc'd buffer in BUF. */
fclose (f);
/* Close the memory stream; this will finalize the data
into a malloc'd buffer in BUF. */
fclose (f);
}
/* Output to stderr if requested. */
if (LogStat & LOG_PERROR) {
@ -326,7 +352,7 @@ closelog ()
closelog_internal ();
LogTag = NULL;
LogType = SOCK_DGRAM; /* this is the default */
/* Free the lock. */
__libc_cleanup_region_end (1);
}