diff options
Diffstat (limited to 'lib/libc/stdlib/strtoul.c')
| -rw-r--r-- | lib/libc/stdlib/strtoul.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/libc/stdlib/strtoul.c b/lib/libc/stdlib/strtoul.c index e60556c0..304150a 100644 --- a/lib/libc/stdlib/strtoul.c +++ b/lib/libc/stdlib/strtoul.c @@ -54,7 +54,7 @@ strtoul(nptr, endptr, base) { register const char *s = nptr; register unsigned long acc; - register int c; + register unsigned char c; register unsigned long cutoff; register int neg = 0, any, cutlim; @@ -80,6 +80,8 @@ strtoul(nptr, endptr, base) cutoff = (unsigned long)ULONG_MAX / (unsigned long)base; cutlim = (unsigned long)ULONG_MAX % (unsigned long)base; for (acc = 0, any = 0;; c = *s++) { + if (!isascii(c)) + break; if (isdigit(c)) c -= '0'; else if (isalpha(c)) @@ -88,7 +90,7 @@ strtoul(nptr, endptr, base) break; if (c >= base) break; - if (any < 0 || acc > cutoff || acc == cutoff && c > cutlim) + if (any < 0 || acc > cutoff || (acc == cutoff && c > cutlim)) any = -1; else { any = 1; |
