diff options
Diffstat (limited to 'stdlib/strtol.c')
| -rw-r--r-- | stdlib/strtol.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/stdlib/strtol.c b/stdlib/strtol.c index d52f338c84..b06063c2c5 100644 --- a/stdlib/strtol.c +++ b/stdlib/strtol.c @@ -150,7 +150,7 @@ INTERNAL (strtol) (nptr, endptr, base, group) if (base < 0 || base == 1 || base > 36) base = 10; - s = nptr; + save = s = nptr; /* Skip white space. */ while (isspace (*s)) @@ -269,9 +269,17 @@ INTERNAL (strtol) (nptr, endptr, base, group) return (negative ? -i : i); noconv: - /* There was no number to convert. */ + /* We must handle a special case here: the base is 0 or 16 and the + first two characters and '0' and 'x', but the rest are no + hexadecimal digits. This is no error case. We return 0 and + ENDPTR points to the `x`. */ if (endptr != NULL) - *endptr = (char *) nptr; + if (save - nptr >= 2 && tolower (save[-1]) == 'x' && save[-2] == '0') + *endptr = (char *) &save[-1]; + else + /* There was no number to convert. */ + *endptr = (char *) nptr; + return 0L; } |