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author | 2015-11-30 01:45:08 -0500 | |
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committer | 2015-11-30 01:45:08 -0500 | |
commit | e8ec7aa8e38a93f5b034ac74cebce5de23710317 (patch) | |
tree | aa031937bf856c1f8d6ad7877b8d2cb0224da5ef /rubbos/app/httpd-2.0.64/srclib/apr/network_io/unix/inet_ntop.c | |
parent | cc40af334e619bb549038238507407866f774f8f (diff) |
upload http
JIRA: BOTTLENECK-10
Change-Id: I7598427ff904df438ce77c2819ee48ac75ffa8da
Signed-off-by: hongbotian <hongbo.tianhongbo@huawei.com>
Diffstat (limited to 'rubbos/app/httpd-2.0.64/srclib/apr/network_io/unix/inet_ntop.c')
-rw-r--r-- | rubbos/app/httpd-2.0.64/srclib/apr/network_io/unix/inet_ntop.c | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/rubbos/app/httpd-2.0.64/srclib/apr/network_io/unix/inet_ntop.c b/rubbos/app/httpd-2.0.64/srclib/apr/network_io/unix/inet_ntop.c new file mode 100644 index 00000000..78dd3baa --- /dev/null +++ b/rubbos/app/httpd-2.0.64/srclib/apr/network_io/unix/inet_ntop.c @@ -0,0 +1,243 @@ +/* Copyright (c) 1996 by 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 "apr_private.h" +#include "apr_arch_networkio.h" +#include "apr_strings.h" + +#if APR_HAVE_SYS_TYPES_H +#include <sys/types.h> +#endif +#if APR_HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif +#if APR_HAVE_NETINET_IN_H +#include <netinet/in.h> +#endif +#if APR_HAVE_ARPA_INET_H +#include <arpa/inet.h> +#endif +#include <string.h> +#if APR_HAVE_ERRNO_H +#include <errno.h> +#endif +#include <stdio.h> + +#ifndef IN6ADDRSZ +#define IN6ADDRSZ 16 +#endif + +#ifndef INT16SZ +#define INT16SZ sizeof(apr_int16_t) +#endif + +#ifndef __P +#define __P(x) x +#endif + +#if !defined(EAFNOSUPPORT) && defined(WSAEAFNOSUPPORT) +#define EAFNOSUPPORT WSAEAFNOSUPPORT +#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 const char *inet_ntop4 __P((const unsigned char *src, char *dst, apr_size_t size)); +#if APR_HAVE_IPV6 +static const char *inet_ntop6 __P((const unsigned char *src, char *dst, apr_size_t size)); +#endif + +/* char * + * inet_ntop(af, src, dst, size) + * convert a network format address to presentation format. + * return: + * pointer to presentation format address (`dst'), or NULL (see errno). + * author: + * Paul Vixie, 1996. + */ +const char * +apr_inet_ntop(int af, const void *src, char *dst, apr_size_t size) +{ + switch (af) { + case AF_INET: + return (inet_ntop4(src, dst, size)); +#if APR_HAVE_IPV6 + case AF_INET6: + return (inet_ntop6(src, dst, size)); +#endif + default: + errno = EAFNOSUPPORT; + return (NULL); + } + /* NOTREACHED */ +} + +/* const char * + * inet_ntop4(src, dst, size) + * format an IPv4 address, more or less like inet_ntoa() + * return: + * `dst' (as a const) + * notes: + * (1) uses no statics + * (2) takes a u_char* not an in_addr as input + * author: + * Paul Vixie, 1996. + */ +static const char * +inet_ntop4(const unsigned char *src, char *dst, apr_size_t size) +{ + const apr_size_t MIN_SIZE = 16; /* space for 255.255.255.255\0 */ + int n = 0; + char *next = dst; + + if (size < MIN_SIZE) { + errno = ENOSPC; + return NULL; + } + do { + unsigned char u = *src++; + if (u > 99) { + *next++ = '0' + u/100; + u %= 100; + *next++ = '0' + u/10; + u %= 10; + } + else if (u > 9) { + *next++ = '0' + u/10; + u %= 10; + } + *next++ = '0' + u; + *next++ = '.'; + n++; + } while (n < 4); + *--next = 0; + return dst; +} + +#if APR_HAVE_IPV6 +/* const char * + * inet_ntop6(src, dst, size) + * convert IPv6 binary address into presentation (printable) format + * author: + * Paul Vixie, 1996. + */ +static const char * +inet_ntop6(const unsigned char *src, char *dst, apr_size_t size) +{ + /* + * Note that int32_t and int16_t need only be "at least" large enough + * to contain a value of the specified size. On some systems, like + * Crays, there is no such thing as an integer variable with 16 bits. + * Keep this in mind if you think this function should have been coded + * to use pointer overlays. All the world's not a VAX. + */ + char tmp[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"], *tp; + struct { int base, len; } best = {-1, 0}, cur = {-1, 0}; + unsigned int words[IN6ADDRSZ / INT16SZ]; + int i; + const unsigned char *next_src, *src_end; + unsigned int *next_dest; + + /* + * Preprocess: + * Copy the input (bytewise) array into a wordwise array. + * Find the longest run of 0x00's in src[] for :: shorthanding. + */ + next_src = src; + src_end = src + IN6ADDRSZ; + next_dest = words; + i = 0; + do { + unsigned int next_word = (unsigned int)*next_src++; + next_word <<= 8; + next_word |= (unsigned int)*next_src++; + *next_dest++ = next_word; + + if (next_word == 0) { + if (cur.base == -1) { + cur.base = i; + cur.len = 1; + } + else { + cur.len++; + } + } else { + if (cur.base != -1) { + if (best.base == -1 || cur.len > best.len) { + best = cur; + } + cur.base = -1; + } + } + + i++; + } while (next_src < src_end); + + if (cur.base != -1) { + if (best.base == -1 || cur.len > best.len) { + best = cur; + } + } + if (best.base != -1 && best.len < 2) { + best.base = -1; + } + + /* + * Format the result. + */ + tp = tmp; + for (i = 0; i < (IN6ADDRSZ / INT16SZ);) { + /* Are we inside the best run of 0x00's? */ + if (i == best.base) { + *tp++ = ':'; + i += best.len; + continue; + } + /* Are we following an initial run of 0x00s or any real hex? */ + if (i != 0) { + *tp++ = ':'; + } + /* Is this address an encapsulated IPv4? */ + if (i == 6 && best.base == 0 && + (best.len == 6 || (best.len == 5 && words[5] == 0xffff))) { + if (!inet_ntop4(src+12, tp, sizeof tmp - (tp - tmp))) { + return (NULL); + } + tp += strlen(tp); + break; + } + tp += apr_snprintf(tp, sizeof tmp - (tp - tmp), "%x", words[i]); + i++; + } + /* Was it a trailing run of 0x00's? */ + if (best.base != -1 && (best.base + best.len) == (IN6ADDRSZ / INT16SZ)) { + *tp++ = ':'; + } + *tp++ = '\0'; + + /* + * Check for overflow, copy, and we're done. + */ + if ((apr_size_t)(tp - tmp) > size) { + errno = ENOSPC; + return (NULL); + } + strcpy(dst, tmp); + return (dst); +} +#endif |