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fix non-atomicity of puts

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This commit is contained in:
Rich Felker 2011-03-24 22:58:21 -04:00
commit 8ae2fa6563
1 changed files with 5 additions and 1 deletions
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6
src/stdio/puts.c
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@ -2,5 +2,9 @@
int puts(const char *s) int puts(const char *s)
{ {
return -(fputs(s, stdout) < 0 || putchar('\n') < 0); int r;
FLOCK(stdout);
r = -(fputs(s, stdout) < 0 || putchar('\n') < 0);
FUNLOCK(stdout);
return r;
} }