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* jl/virtual: Removed memory leaks from interpolation table uses. Cleaned up git-daemon virtual hosting support.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,220 @@ | ||
| /* | ||
| * Copyright (C) 1996-2001 Internet Software Consortium. | ||
| * | ||
| * Permission to use, copy, modify, and distribute this software for any | ||
| * purpose with or without fee is hereby granted, provided that the above | ||
| * copyright notice and this permission notice appear in all copies. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM | ||
| * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL | ||
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL | ||
| * INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, | ||
| * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING | ||
| * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, | ||
| * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION | ||
| * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | ||
| */ | ||
|
|
||
| #include <errno.h> | ||
| #include <sys/types.h> | ||
| #include <sys/socket.h> | ||
| #include <sys/socket.h> | ||
| #include <netinet/in.h> | ||
| #include <arpa/inet.h> | ||
| #include <stdio.h> | ||
| #include <string.h> | ||
|
|
||
| #ifndef NS_INT16SZ | ||
| #define NS_INT16SZ 2 | ||
| #endif | ||
|
|
||
| #ifndef NS_INADDRSZ | ||
| #define NS_INADDRSZ 4 | ||
| #endif | ||
|
|
||
| #ifndef NS_IN6ADDRSZ | ||
| #define NS_IN6ADDRSZ 16 | ||
| #endif | ||
|
|
||
| /* | ||
| * WARNING: Don't even consider trying to compile this on a system where | ||
| * sizeof(int) < 4. sizeof(int) > 4 is fine; all the world's not a VAX. | ||
| */ | ||
|
|
||
| static int inet_pton4(const char *src, unsigned char *dst); | ||
| static int inet_pton6(const char *src, unsigned char *dst); | ||
|
|
||
| /* int | ||
| * inet_pton4(src, dst) | ||
| * like inet_aton() but without all the hexadecimal and shorthand. | ||
| * return: | ||
| * 1 if `src' is a valid dotted quad, else 0. | ||
| * notice: | ||
| * does not touch `dst' unless it's returning 1. | ||
| * author: | ||
| * Paul Vixie, 1996. | ||
| */ | ||
| static int | ||
| inet_pton4(const char *src, unsigned char *dst) | ||
| { | ||
| static const char digits[] = "0123456789"; | ||
| int saw_digit, octets, ch; | ||
| unsigned char tmp[NS_INADDRSZ], *tp; | ||
|
|
||
| saw_digit = 0; | ||
| octets = 0; | ||
| *(tp = tmp) = 0; | ||
| while ((ch = *src++) != '\0') { | ||
| const char *pch; | ||
|
|
||
| if ((pch = strchr(digits, ch)) != NULL) { | ||
| unsigned 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); | ||
| memcpy(dst, tmp, NS_INADDRSZ); | ||
| return (1); | ||
| } | ||
|
|
||
| /* int | ||
| * inet_pton6(src, dst) | ||
| * convert presentation level address to network order binary form. | ||
| * return: | ||
| * 1 if `src' is a valid [RFC1884 2.2] address, else 0. | ||
| * notice: | ||
| * (1) does not touch `dst' unless it's returning 1. | ||
| * (2) :: in a full address is silently ignored. | ||
| * credit: | ||
| * inspired by Mark Andrews. | ||
| * author: | ||
| * Paul Vixie, 1996. | ||
| */ | ||
|
|
||
| #ifndef NO_IPV6 | ||
| static int | ||
| inet_pton6(const char *src, unsigned char *dst) | ||
| { | ||
| static const char xdigits_l[] = "0123456789abcdef", | ||
| xdigits_u[] = "0123456789ABCDEF"; | ||
| unsigned char tmp[NS_IN6ADDRSZ], *tp, *endp, *colonp; | ||
| const char *xdigits, *curtok; | ||
| int ch, saw_xdigit; | ||
| unsigned int val; | ||
|
|
||
| memset((tp = tmp), '\0', NS_IN6ADDRSZ); | ||
| endp = tp + NS_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 + NS_INT16SZ > endp) | ||
| return (0); | ||
| *tp++ = (unsigned char) (val >> 8) & 0xff; | ||
| *tp++ = (unsigned char) val & 0xff; | ||
| saw_xdigit = 0; | ||
| val = 0; | ||
| continue; | ||
| } | ||
| if (ch == '.' && ((tp + NS_INADDRSZ) <= endp) && | ||
| inet_pton4(curtok, tp) > 0) { | ||
| tp += NS_INADDRSZ; | ||
| saw_xdigit = 0; | ||
| break; /* '\0' was seen by inet_pton4(). */ | ||
| } | ||
| return (0); | ||
| } | ||
| if (saw_xdigit) { | ||
| if (tp + NS_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); | ||
| memcpy(dst, tmp, NS_IN6ADDRSZ); | ||
| return (1); | ||
| } | ||
| #endif | ||
|
|
||
| /* int | ||
| * isc_net_pton(af, src, dst) | ||
| * convert from presentation format (which usually means ASCII printable) | ||
| * to network format (which is usually some kind of binary format). | ||
| * return: | ||
| * 1 if the address was valid for the specified address family | ||
| * 0 if the address wasn't valid (`dst' is untouched in this case) | ||
| * -1 if some other error occurred (`dst' is untouched in this case, too) | ||
| * author: | ||
| * Paul Vixie, 1996. | ||
| */ | ||
| int | ||
| inet_pton(int af, const char *src, void *dst) | ||
| { | ||
| switch (af) { | ||
| case AF_INET: | ||
| return (inet_pton4(src, dst)); | ||
| #ifndef NO_IPV6 | ||
| case AF_INET6: | ||
| return (inet_pton6(src, dst)); | ||
| #endif | ||
| default: | ||
| errno = EAFNOSUPPORT; | ||
| return (-1); | ||
| } | ||
| /* NOTREACHED */ | ||
| } |
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