diff options
| -rw-r--r-- | src/stdio/vfscanf.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/stdio/vfscanf.c b/src/stdio/vfscanf.c index 9e030fc4..b5ebc16e 100644 --- a/src/stdio/vfscanf.c +++ b/src/stdio/vfscanf.c @@ -76,6 +76,9 @@ int vfscanf(FILE *restrict f, const char *restrict fmt, va_list ap) FLOCK(f); + if (!f->rpos) __toread(f); + if (!f->rpos) goto input_fail; + for (p=(const unsigned char *)fmt; *p; p++) { alloc = 0; |