diff options
Diffstat (limited to 'source3/lib/replace.c')
-rw-r--r-- | source3/lib/replace.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/source3/lib/replace.c b/source3/lib/replace.c index 2d4ed775a47..a768e9ce47a 100644 --- a/source3/lib/replace.c +++ b/source3/lib/replace.c @@ -299,3 +299,71 @@ char *rep_inet_ntoa(struct in_addr ip) } #endif /* REPLACE_INET_NTOA */ +#ifndef HAVE_STRTOUL +#ifndef ULONG_MAX +#define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF */ +#endif + +/* + * Convert a string to an unsigned long integer. + * Taken from libg++ - libiberty code. + * + * Ignores `locale' stuff. Assumes that the upper and lower case + * alphabets and digits are each contiguous. + */ + unsigned long strtoul(const char *nptr, char **endptr, int base) +{ + const char *s = nptr; + unsigned long acc; + int c; + unsigned long cutoff; + int neg = 0, any, cutlim; + + /* + * See strtol for comments as to the logic used. + */ + do { + c = *s++; + } while (isspace(c)); + if (c == '-') { + neg = 1; + c = *s++; + } else if (c == '+') + c = *s++; + if ((base == 0 || base == 16) && + c == '0' && (*s == 'x' || *s == 'X')) { + c = s[1]; + s += 2; + base = 16; + } + if (base == 0) + base = c == '0' ? 8 : 10; + cutoff = (unsigned long)ULONG_MAX / (unsigned long)base; + cutlim = (int)((unsigned long)ULONG_MAX % (unsigned long)base); + for (acc = 0, any = 0;; c = *s++) { + if (isdigit(c)) + c -= '0'; + else if (isalpha(c)) + c -= isupper(c) ? 'A' - 10 : 'a' - 10; + else + break; + if (c >= base) + break; + if (any < 0 || acc > cutoff || acc == cutoff && c > cutlim) + any = -1; + else { + any = 1; + acc *= base; + acc += c; + } + } + if (any < 0) { + acc = ULONG_MAX; + errno = ERANGE; + } else if (neg) + acc = -acc; + if (endptr != 0) + *endptr = (char *) (any ? s - 1 : nptr); + return (acc); +} +#endif /* HAVE_STRTOUL */ |