diff options
Diffstat (limited to 'lib/libc/stdio/vfprintf.c')
| -rw-r--r-- | lib/libc/stdio/vfprintf.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/libc/stdio/vfprintf.c b/lib/libc/stdio/vfprintf.c index ea47d36..e54e8ac 100644 --- a/lib/libc/stdio/vfprintf.c +++ b/lib/libc/stdio/vfprintf.c @@ -455,8 +455,10 @@ __vfprintf(FILE *fp, locale_t locale, const char *fmt0, va_list ap) return (__xvprintf(fp, fmt0, ap)); /* sorry, fprintf(read_only_file, "") returns EOF, not 0 */ - if (prepwrite(fp) != 0) + if (prepwrite(fp) != 0) { + errno = EBADF; return (EOF); + } convbuf = NULL; fmt = (char *)fmt0; |
