diff options
Diffstat (limited to 'src/stdio/fputs.c')
| -rw-r--r-- | src/stdio/fputs.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/stdio/fputs.c b/src/stdio/fputs.c index a82338d1..c4d32dec 100644 --- a/src/stdio/fputs.c +++ b/src/stdio/fputs.c @@ -1,4 +1,5 @@ #include <stdio.h> +#include <string.h> #include "_stdio.h" /** write a string to a file stream **/ @@ -6,6 +7,8 @@ int fputs(const char * restrict s, FILE * restrict stream) { SIGNAL_SAFE(0); + ASSERT_NOOVERLAP(s, strlen(s), stream, sizeof(*stream)); + flockfile(stream); while (*s) { if (fputc(*s++, stream) == EOF) { |