diff options
| -rw-r--r-- | lib/inet_pton.c | 246 |
1 files changed, 123 insertions, 123 deletions
diff --git a/lib/inet_pton.c b/lib/inet_pton.c index 1cd3f80f4..24820fe25 100644 --- a/lib/inet_pton.c +++ b/lib/inet_pton.c @@ -72,21 +72,21 @@ static int inet_pton6(const char *src, unsigned char *dst); int Curl_inet_pton(int af, const char *src, void *dst) { - switch (af) { - case AF_INET: - return (inet_pton4(src, dst)); + switch (af) { + case AF_INET: + return (inet_pton4(src, dst)); #ifdef ENABLE_IPV6 #ifndef AF_INET6 #define AF_INET6 AF_MAX+1 /* just to let this compile */ #endif - case AF_INET6: - return (inet_pton6(src, dst)); + case AF_INET6: + return (inet_pton6(src, dst)); #endif - default: - errno = EAFNOSUPPORT; - return (-1); - } - /* NOTREACHED */ + default: + errno = EAFNOSUPPORT; + return (-1); + } + /* NOTREACHED */ } /* int @@ -102,40 +102,40 @@ Curl_inet_pton(int af, const char *src, void *dst) static int inet_pton4(const char *src, unsigned char *dst) { - static const char digits[] = "0123456789"; - int saw_digit, octets, ch; - unsigned char tmp[INADDRSZ], *tp; - - saw_digit = 0; - octets = 0; - *(tp = tmp) = 0; - while ((ch = *src++) != '\0') { - const char *pch; - - if ((pch = strchr(digits, ch)) != NULL) { - u_int new = *tp * 10 + (pch - digits); - - if (new > 255) - return (0); - *tp = new; - if (! saw_digit) { - if (++octets > 4) - return (0); - saw_digit = 1; - } - } else if (ch == '.' && saw_digit) { - if (octets == 4) - return (0); - *++tp = 0; - saw_digit = 0; - } else - return (0); - } - if (octets < 4) - return (0); - /* bcopy(tmp, dst, INADDRSZ); */ - memcpy(dst, tmp, INADDRSZ); - return (1); + static const char digits[] = "0123456789"; + int saw_digit, octets, ch; + unsigned char tmp[INADDRSZ], *tp; + + saw_digit = 0; + octets = 0; + *(tp = tmp) = 0; + while ((ch = *src++) != '\0') { + const char *pch; + + if ((pch = strchr(digits, ch)) != NULL) { + u_int new = *tp * 10 + (pch - digits); + + if (new > 255) + return (0); + *tp = new; + if (! saw_digit) { + if (++octets > 4) + return (0); + saw_digit = 1; + } + } else if (ch == '.' && saw_digit) { + if (octets == 4) + return (0); + *++tp = 0; + saw_digit = 0; + } else + return (0); + } + if (octets < 4) + return (0); + /* bcopy(tmp, dst, INADDRSZ); */ + memcpy(dst, tmp, INADDRSZ); + return (1); } #ifdef ENABLE_IPV6 @@ -155,85 +155,85 @@ inet_pton4(const char *src, unsigned char *dst) static int inet_pton6(const char *src, unsigned char *dst) { - static const char xdigits_l[] = "0123456789abcdef", - xdigits_u[] = "0123456789ABCDEF"; - unsigned char tmp[IN6ADDRSZ], *tp, *endp, *colonp; - const char *xdigits, *curtok; - int ch, saw_xdigit; - u_int val; - - memset((tp = tmp), 0, IN6ADDRSZ); - endp = tp + IN6ADDRSZ; - colonp = NULL; - /* Leading :: requires some special handling. */ - if (*src == ':') - if (*++src != ':') - return (0); - curtok = src; - saw_xdigit = 0; - val = 0; - while ((ch = *src++) != '\0') { - const char *pch; - - if ((pch = strchr((xdigits = xdigits_l), ch)) == NULL) - pch = strchr((xdigits = xdigits_u), ch); - if (pch != NULL) { - val <<= 4; - val |= (pch - xdigits); - if (val > 0xffff) - return (0); - saw_xdigit = 1; - continue; - } - if (ch == ':') { - curtok = src; - if (!saw_xdigit) { - if (colonp) - return (0); - colonp = tp; - continue; - } - if (tp + INT16SZ > endp) - return (0); - *tp++ = (unsigned char) (val >> 8) & 0xff; - *tp++ = (unsigned char) val & 0xff; - saw_xdigit = 0; - val = 0; - continue; - } - if (ch == '.' && ((tp + INADDRSZ) <= endp) && - inet_pton4(curtok, tp) > 0) { - tp += INADDRSZ; - saw_xdigit = 0; - break; /* '\0' was seen by inet_pton4(). */ - } - return (0); - } - if (saw_xdigit) { - if (tp + INT16SZ > endp) - return (0); - *tp++ = (unsigned char) (val >> 8) & 0xff; - *tp++ = (unsigned char) val & 0xff; - } - if (colonp != NULL) { - /* - * Since some memmove()'s erroneously fail to handle - * overlapping regions, we'll do the shift by hand. - */ - const int n = tp - colonp; - int i; - - for (i = 1; i <= n; i++) { - endp[- i] = colonp[n - i]; - colonp[n - i] = 0; - } - tp = endp; - } - if (tp != endp) - return (0); - /* bcopy(tmp, dst, IN6ADDRSZ); */ - memcpy(dst, tmp, IN6ADDRSZ); - return (1); + static const char xdigits_l[] = "0123456789abcdef", + xdigits_u[] = "0123456789ABCDEF"; + unsigned char tmp[IN6ADDRSZ], *tp, *endp, *colonp; + const char *xdigits, *curtok; + int ch, saw_xdigit; + u_int val; + + memset((tp = tmp), 0, IN6ADDRSZ); + endp = tp + IN6ADDRSZ; + colonp = NULL; + /* Leading :: requires some special handling. */ + if (*src == ':') + if (*++src != ':') + return (0); + curtok = src; + saw_xdigit = 0; + val = 0; + while ((ch = *src++) != '\0') { + const char *pch; + + if ((pch = strchr((xdigits = xdigits_l), ch)) == NULL) + pch = strchr((xdigits = xdigits_u), ch); + if (pch != NULL) { + val <<= 4; + val |= (pch - xdigits); + if (val > 0xffff) + return (0); + saw_xdigit = 1; + continue; + } + if (ch == ':') { + curtok = src; + if (!saw_xdigit) { + if (colonp) + return (0); + colonp = tp; + continue; + } + if (tp + INT16SZ > endp) + return (0); + *tp++ = (unsigned char) (val >> 8) & 0xff; + *tp++ = (unsigned char) val & 0xff; + saw_xdigit = 0; + val = 0; + continue; + } + if (ch == '.' && ((tp + INADDRSZ) <= endp) && + inet_pton4(curtok, tp) > 0) { + tp += INADDRSZ; + saw_xdigit = 0; + break; /* '\0' was seen by inet_pton4(). */ + } + return (0); + } + if (saw_xdigit) { + if (tp + INT16SZ > endp) + return (0); + *tp++ = (unsigned char) (val >> 8) & 0xff; + *tp++ = (unsigned char) val & 0xff; + } + if (colonp != NULL) { + /* + * Since some memmove()'s erroneously fail to handle + * overlapping regions, we'll do the shift by hand. + */ + const int n = tp - colonp; + int i; + + for (i = 1; i <= n; i++) { + endp[- i] = colonp[n - i]; + colonp[n - i] = 0; + } + tp = endp; + } + if (tp != endp) + return (0); + /* bcopy(tmp, dst, IN6ADDRSZ); */ + memcpy(dst, tmp, IN6ADDRSZ); + return (1); } #endif /* ENABLE_IPV6 */ |