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eliminate dependence of perror on printf

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This commit is contained in:
Rich Felker
2011-07-30 06:11:16 -04:00
parent 7dd60b80f9
commit 7683fceede
1 changed files with 5 additions and 10 deletions
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15
src/stdio/perror.c
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@ -5,23 +5,18 @@
void perror(const char *msg)
{
#if 1
if (msg) fprintf(stderr, "%s: %m\n", msg, strerror(errno));
else fprintf(stderr, "%m\n");
#else
FILE *f = stderr;
char *errstr = strerror(errno);
FLOCK(f);
if (msg) {
__fwritex(msg, strlen(msg), f);
__putc_unlocked(':', f);
__putc_unlocked(' ', f);
fwrite(msg, strlen(msg), 1, f);
fputc(':', f);
fputc(' ', f);
}
__fwritex(errstr, strlen(errstr), f);
__putc_unlocked('\n', f);
fwrite(errstr, strlen(errstr), 1, f);
fputc('\n', f);
FUNLOCK(f);
#endif
}