Benny Prijono | e0312a7 | 2005-11-18 00:16:43 +0000 | [diff] [blame] | 1 | /* $Id$ */
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Benny Prijono | e722461 | 2005-11-13 19:40:44 +0000 | [diff] [blame] | 2 | /*
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Benny Prijono | e0312a7 | 2005-11-18 00:16:43 +0000 | [diff] [blame] | 3 | * Copyright (C)2003-2006 Benny Prijono <benny@prijono.org>
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Benny Prijono | e722461 | 2005-11-13 19:40:44 +0000 | [diff] [blame] | 4 | *
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Benny Prijono | e0312a7 | 2005-11-18 00:16:43 +0000 | [diff] [blame] | 5 | * This program is free software; you can redistribute it and/or modify
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| 6 | * it under the terms of the GNU General Public License as published by
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| 7 | * the Free Software Foundation; either version 2 of the License, or
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| 8 | * (at your option) any later version.
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Benny Prijono | e722461 | 2005-11-13 19:40:44 +0000 | [diff] [blame] | 9 | *
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Benny Prijono | e0312a7 | 2005-11-18 00:16:43 +0000 | [diff] [blame] | 10 | * This program is distributed in the hope that it will be useful,
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Benny Prijono | e722461 | 2005-11-13 19:40:44 +0000 | [diff] [blame] | 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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Benny Prijono | e0312a7 | 2005-11-18 00:16:43 +0000 | [diff] [blame] | 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | * GNU General Public License for more details.
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| 14 | *
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| 15 | * You should have received a copy of the GNU General Public License
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| 16 | * along with this program; if not, write to the Free Software
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| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Benny Prijono | e722461 | 2005-11-13 19:40:44 +0000 | [diff] [blame] | 18 | */
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| 19 | #include <pj/sock.h>
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| 20 | #include <pj/assert.h>
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| 21 | #include <pj/string.h> /* pj_memcpy() */
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| 22 | #include <pj/os.h> /* PJ_CHECK_STACK() */
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| 23 | #include <pj/addr_resolv.h> /* pj_gethostbyname() */
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| 24 | #include <pj/ctype.h>
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| 25 | #include <pj/compat/sprintf.h>
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| 26 | #include <pj/log.h>
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| 27 | #include <pj/errno.h>
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| 28 |
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| 29 | /* Linux kernel specific. */
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| 30 | #include <linux/socket.h>
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| 31 | #include <linux/net.h>
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| 32 | //#include <net/sock.h>
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| 33 | #include <linux/security.h>
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| 34 | #include <linux/syscalls.h> /* sys_xxx() */
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| 35 | #include <asm/ioctls.h> /* FIONBIO */
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| 36 | #include <linux/utsname.h> /* for pj_gethostname() */
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| 37 |
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| 38 | /*
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| 39 | * Address families conversion.
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| 40 | * The values here are indexed based on pj_addr_family-0xFF00.
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| 41 | */
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| 42 | const pj_uint16_t PJ_AF_UNIX = AF_UNIX;
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| 43 | const pj_uint16_t PJ_AF_INET = AF_INET;
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| 44 | const pj_uint16_t PJ_AF_INET6 = AF_INET6;
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| 45 | #ifdef AF_PACKET
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| 46 | const pj_uint16_t PJ_AF_PACKET = AF_PACKET;
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| 47 | #else
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| 48 | # error "AF_PACKET undeclared!"
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| 49 | #endif
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| 50 | #ifdef AF_IRDA
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| 51 | const pj_uint16_t PJ_AF_IRDA = AF_IRDA;
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| 52 | #else
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| 53 | # error "AF_IRDA undeclared!"
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| 54 | #endif
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| 55 |
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| 56 | /*
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| 57 | * Socket types conversion.
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| 58 | * The values here are indexed based on pj_sock_type-0xFF00
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| 59 | */
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| 60 | const pj_uint16_t PJ_SOCK_STREAM= SOCK_STREAM;
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| 61 | const pj_uint16_t PJ_SOCK_DGRAM = SOCK_DGRAM;
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| 62 | const pj_uint16_t PJ_SOCK_RAW = SOCK_RAW;
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| 63 | const pj_uint16_t PJ_SOCK_RDM = SOCK_RDM;
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| 64 |
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| 65 | /*
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| 66 | * Socket level values.
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| 67 | */
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| 68 | const pj_uint16_t PJ_SOL_SOCKET = SOL_SOCKET;
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| 69 | #ifdef SOL_IP
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| 70 | const pj_uint16_t PJ_SOL_IP = SOL_IP;
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| 71 | #else
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| 72 | # error "SOL_IP undeclared!"
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| 73 | #endif /* SOL_IP */
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| 74 | #if defined(SOL_TCP)
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| 75 | const pj_uint16_t PJ_SOL_TCP = SOL_TCP;
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| 76 | #else
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| 77 | # error "SOL_TCP undeclared!"
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| 78 | #endif /* SOL_TCP */
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| 79 | #ifdef SOL_UDP
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| 80 | const pj_uint16_t PJ_SOL_UDP = SOL_UDP;
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| 81 | #else
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| 82 | # error "SOL_UDP undeclared!"
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| 83 | #endif
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| 84 | #ifdef SOL_IPV6
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| 85 | const pj_uint16_t PJ_SOL_IPV6 = SOL_IPV6;
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| 86 | #else
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| 87 | # error "SOL_IPV6 undeclared!"
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| 88 | #endif
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Benny Prijono | 4d974f3 | 2005-11-06 13:32:11 +0000 | [diff] [blame] | 89 |
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| 90 | /* optname values. */
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| 91 | const pj_uint16_t PJ_SO_TYPE = SO_TYPE;
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| 92 | const pj_uint16_t PJ_SO_RCVBUF = SO_RCVBUF;
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| 93 | const pj_uint16_t PJ_SO_SNDBUF = SO_SNDBUF;
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Benny Prijono | e722461 | 2005-11-13 19:40:44 +0000 | [diff] [blame] | 94 |
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| 95 | /*
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| 96 | * Convert 16-bit value from network byte order to host byte order.
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| 97 | */
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| 98 | PJ_DEF(pj_uint16_t) pj_ntohs(pj_uint16_t netshort)
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| 99 | {
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| 100 | return ntohs(netshort);
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| 101 | }
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| 102 |
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| 103 | /*
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| 104 | * Convert 16-bit value from host byte order to network byte order.
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| 105 | */
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| 106 | PJ_DEF(pj_uint16_t) pj_htons(pj_uint16_t hostshort)
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| 107 | {
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| 108 | return htons(hostshort);
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| 109 | }
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| 110 |
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| 111 | /*
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| 112 | * Convert 32-bit value from network byte order to host byte order.
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| 113 | */
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| 114 | PJ_DEF(pj_uint32_t) pj_ntohl(pj_uint32_t netlong)
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| 115 | {
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| 116 | return ntohl(netlong);
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| 117 | }
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| 118 |
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| 119 | /*
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| 120 | * Convert 32-bit value from host byte order to network byte order.
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| 121 | */
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| 122 | PJ_DEF(pj_uint32_t) pj_htonl(pj_uint32_t hostlong)
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| 123 | {
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| 124 | return htonl(hostlong);
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| 125 | }
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| 126 |
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| 127 | /*
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| 128 | * Convert an Internet host address given in network byte order
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| 129 | * to string in standard numbers and dots notation.
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| 130 | */
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| 131 | PJ_DEF(char*) pj_inet_ntoa(pj_in_addr in)
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| 132 | {
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| 133 | #define UC(b) (((int)b)&0xff)
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| 134 | static char b[18];
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| 135 | char *p;
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| 136 |
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| 137 | p = (char *)∈
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| 138 | pj_snprintf(b, sizeof(b), "%d.%d.%d.%d",
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| 139 | UC(p[0]), UC(p[1]), UC(p[2]), UC(p[3]));
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| 140 |
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| 141 | return b;
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| 142 | }
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| 143 |
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| 144 | /*
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| 145 | * This function converts the Internet host address ccp from the standard
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| 146 | * numbers-and-dots notation into binary data and stores it in the structure
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| 147 | * that inp points to.
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| 148 | */
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| 149 | PJ_DEF(int) pj_inet_aton(const pj_str_t *ccp, struct pj_in_addr *addr)
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| 150 | {
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| 151 | pj_uint32_t val;
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| 152 | int base, n;
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| 153 | char c;
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| 154 | unsigned parts[4];
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| 155 | unsigned *pp = parts;
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| 156 | char cp_copy[18];
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| 157 | char *cp = cp_copy;
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| 158 |
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| 159 | addr->s_addr = PJ_INADDR_NONE;
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| 160 |
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| 161 | if (ccp->slen > 15) return 0;
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| 162 |
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| 163 | pj_memcpy(cp, ccp->ptr, ccp->slen);
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| 164 | cp[ccp->slen] = '\0';
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| 165 |
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| 166 | c = *cp;
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| 167 | for (;;) {
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| 168 | /*
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| 169 | * Collect number up to ``.''.
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| 170 | * Values are specified as for C:
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| 171 | * 0x=hex, 0=octal, isdigit=decimal.
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| 172 | */
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| 173 | if (!pj_isdigit((int)c))
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| 174 | return (0);
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| 175 | val = 0; base = 10;
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| 176 | if (c == '0') {
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| 177 | c = *++cp;
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| 178 | if (c == 'x' || c == 'X')
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| 179 | base = 16, c = *++cp;
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| 180 | else
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| 181 | base = 8;
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| 182 | }
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| 183 |
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| 184 | for (;;) {
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| 185 | if (pj_isascii((int)c) && pj_isdigit((int)c)) {
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| 186 | val = (val * base) + (c - '0');
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| 187 | c = *++cp;
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| 188 | } else if (base==16 && pj_isascii((int)c) && pj_isxdigit((int)c)) {
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| 189 | val = (val << 4) |
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| 190 | (c + 10 - (pj_islower((int)c) ? 'a' : 'A'));
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| 191 | c = *++cp;
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| 192 | } else
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| 193 | break;
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| 194 | }
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| 195 |
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| 196 | if (c == '.') {
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| 197 | /*
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| 198 | * Internet format:
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| 199 | * a.b.c.d
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| 200 | * a.b.c (with c treated as 16 bits)
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| 201 | * a.b (with b treated as 24 bits)
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| 202 | */
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| 203 | if (pp >= parts + 3)
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| 204 | return (0);
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| 205 | *pp++ = val;
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| 206 | c = *++cp;
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| 207 | } else
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| 208 | break;
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| 209 | }
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| 210 |
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| 211 | /*
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| 212 | * Check for trailing characters.
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| 213 | */
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| 214 | if (c != '\0' && (!pj_isascii((int)c) || !pj_isspace((int)c)))
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| 215 | return (0);
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| 216 | /*
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| 217 | * Concoct the address according to
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| 218 | * the number of parts specified.
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| 219 | */
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| 220 | n = pp - parts + 1;
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| 221 | switch (n) {
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| 222 | case 0:
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| 223 | return (0); /* initial nondigit */
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| 224 | case 1: /* a -- 32 bits */
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| 225 | break;
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| 226 | case 2: /* a.b -- 8.24 bits */
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| 227 | if (val > 0xffffff)
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| 228 | return (0);
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| 229 | val |= parts[0] << 24;
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| 230 | break;
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| 231 | case 3: /* a.b.c -- 8.8.16 bits */
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| 232 | if (val > 0xffff)
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| 233 | return (0);
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| 234 | val |= (parts[0] << 24) | (parts[1] << 16);
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| 235 | break;
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| 236 | case 4: /* a.b.c.d -- 8.8.8.8 bits */
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| 237 | if (val > 0xff)
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| 238 | return (0);
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| 239 | val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8);
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| 240 | break;
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| 241 | }
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| 242 |
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| 243 | if (addr)
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| 244 | addr->s_addr = pj_htonl(val);
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| 245 | return (1);
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| 246 | }
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| 247 |
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| 248 | /*
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| 249 | * Convert address string with numbers and dots to binary IP address.
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| 250 | */
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| 251 | PJ_DEF(pj_in_addr) pj_inet_addr(const pj_str_t *cp)
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| 252 | {
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| 253 | pj_in_addr addr;
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| 254 | pj_inet_aton(cp, &addr);
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| 255 | return addr;
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| 256 | }
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| 257 |
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| 258 | /*
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| 259 | * Set the IP address of an IP socket address from string address,
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| 260 | * with resolving the host if necessary. The string address may be in a
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| 261 | * standard numbers and dots notation or may be a hostname. If hostname
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| 262 | * is specified, then the function will resolve the host into the IP
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| 263 | * address.
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| 264 | */
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| 265 | PJ_DEF(pj_status_t) pj_sockaddr_in_set_str_addr( pj_sockaddr_in *addr,
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| 266 | const pj_str_t *str_addr)
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| 267 | {
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| 268 | PJ_CHECK_STACK();
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| 269 |
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| 270 | pj_assert(str_addr && str_addr->slen < PJ_MAX_HOSTNAME);
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| 271 |
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| 272 | addr->sin_family = AF_INET;
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| 273 |
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| 274 | if (str_addr && str_addr->slen) {
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| 275 | addr->sin_addr = pj_inet_addr(str_addr);
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| 276 | if (addr->sin_addr.s_addr == PJ_INADDR_NONE) {
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| 277 | pj_hostent he;
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| 278 | if (pj_gethostbyname(str_addr, &he) == 0) {
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| 279 | addr->sin_addr.s_addr = *(pj_uint32_t*)he.h_addr;
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| 280 | } else {
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| 281 | addr->sin_addr.s_addr = PJ_INADDR_NONE;
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| 282 | return -1;
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| 283 | }
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| 284 | }
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| 285 |
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| 286 | } else {
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| 287 | addr->sin_addr.s_addr = 0;
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| 288 | }
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| 289 |
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| 290 | return PJ_SUCCESS;
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| 291 | }
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| 292 |
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| 293 | /*
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| 294 | * Set the IP address and port of an IP socket address.
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| 295 | * The string address may be in a standard numbers and dots notation or
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| 296 | * may be a hostname. If hostname is specified, then the function will
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| 297 | * resolve the host into the IP address.
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| 298 | */
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| 299 | PJ_DEF(pj_status_t) pj_sockaddr_in_init( pj_sockaddr_in *addr,
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| 300 | const pj_str_t *str_addr,
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| 301 | pj_uint16_t port)
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| 302 | {
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| 303 | pj_assert(addr && str_addr);
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| 304 |
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| 305 | addr->sin_family = PJ_AF_INET;
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| 306 | pj_sockaddr_in_set_port(addr, port);
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| 307 | return pj_sockaddr_in_set_str_addr(addr, str_addr);
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| 308 | }
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| 309 |
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| 310 |
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| 311 | /*
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| 312 | * Get hostname.
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| 313 | */
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| 314 | PJ_DEF(const pj_str_t*) pj_gethostname(void)
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| 315 | {
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| 316 | static char buf[PJ_MAX_HOSTNAME];
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| 317 | static pj_str_t hostname;
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| 318 |
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| 319 | PJ_CHECK_STACK();
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| 320 |
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| 321 | if (hostname.ptr == NULL) {
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| 322 | hostname.ptr = buf;
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| 323 | down_read(&uts_sem);
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| 324 | hostname.slen = strlen(system_utsname.nodename);
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| 325 | if (hostname.slen > PJ_MAX_HOSTNAME) {
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| 326 | hostname.ptr[0] = '\0';
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| 327 | hostname.slen = 0;
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| 328 | } else {
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| 329 | pj_memcpy(hostname.ptr, system_utsname.nodename, hostname.slen);
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| 330 | }
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| 331 | up_read(&uts_sem);
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| 332 | }
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| 333 | return &hostname;
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| 334 | }
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| 335 |
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| 336 | /*
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| 337 | * Get first IP address associated with the hostname.
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| 338 | */
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| 339 | PJ_DEF(pj_in_addr) pj_gethostaddr(void)
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| 340 | {
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| 341 | pj_sockaddr_in addr;
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| 342 | const pj_str_t *hostname = pj_gethostname();
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| 343 |
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| 344 | pj_sockaddr_in_set_str_addr(&addr, hostname);
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| 345 | return addr.sin_addr;
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| 346 | }
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| 347 |
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| 348 |
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| 349 | /*
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| 350 | * Create new socket/endpoint for communication and returns a descriptor.
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| 351 | */
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| 352 | PJ_DEF(pj_status_t) pj_sock_socket(int af, int type, int proto,
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| 353 | pj_sock_t *sock_fd)
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| 354 | {
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| 355 | long result;
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| 356 |
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| 357 | PJ_CHECK_STACK();
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| 358 |
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| 359 | /* Sanity checks. */
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| 360 | PJ_ASSERT_RETURN(PJ_INVALID_SOCKET == -1 && sock_fd != NULL, PJ_EINVAL);
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| 361 |
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| 362 | /* Initialize returned socket */
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| 363 | *sock_fd = PJ_INVALID_SOCKET;
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| 364 |
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| 365 | /* Create socket. */
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| 366 | result = sys_socket(af, type, proto);
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| 367 | if (result < 0) {
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| 368 | return PJ_RETURN_OS_ERROR((-result));
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| 369 | }
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| 370 |
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| 371 | *sock_fd = result;
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| 372 |
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| 373 | return PJ_SUCCESS;
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| 374 | }
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| 375 |
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| 376 | /*
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| 377 | * Bind socket.
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| 378 | */
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| 379 | PJ_DEF(pj_status_t) pj_sock_bind( pj_sock_t sockfd,
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| 380 | const pj_sockaddr_t *addr,
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| 381 | int len)
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| 382 | {
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| 383 | long err;
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| 384 | mm_segment_t oldfs;
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| 385 |
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| 386 | PJ_CHECK_STACK();
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| 387 |
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| 388 | PJ_ASSERT_RETURN(addr!=NULL && len >= sizeof(struct pj_sockaddr),
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| 389 | PJ_EINVAL);
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| 390 |
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| 391 | oldfs = get_fs();
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| 392 | set_fs(KERNEL_DS);
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| 393 |
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| 394 | err = sys_bind(sockfd, (struct sockaddr*)addr, len);
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| 395 |
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| 396 | set_fs(oldfs);
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| 397 |
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| 398 | if (err)
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| 399 | return PJ_RETURN_OS_ERROR(-err);
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| 400 | else
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| 401 | return PJ_SUCCESS;
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| 402 | }
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| 403 |
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| 404 |
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| 405 | /*
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| 406 | * Bind socket.
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| 407 | */
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| 408 | PJ_DEF(pj_status_t) pj_sock_bind_in( pj_sock_t sockfd,
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| 409 | pj_uint32_t addr32,
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| 410 | pj_uint16_t port)
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| 411 | {
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| 412 | pj_sockaddr_in addr;
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| 413 |
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| 414 | PJ_CHECK_STACK();
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| 415 |
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| 416 | addr.sin_family = PJ_AF_INET;
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| 417 | addr.sin_addr.s_addr = pj_htonl(addr32);
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| 418 | addr.sin_port = pj_htons(port);
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| 419 |
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| 420 | return pj_sock_bind(sockfd, &addr, sizeof(pj_sockaddr_in));
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| 421 | }
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| 422 |
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| 423 | /*
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| 424 | * Close socket.
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| 425 | */
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| 426 | PJ_DEF(pj_status_t) pj_sock_close(pj_sock_t sockfd)
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| 427 | {
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| 428 | long err;
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| 429 |
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| 430 | err = sys_close(sockfd);
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| 431 |
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| 432 | if (err != 0)
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| 433 | return PJ_RETURN_OS_ERROR(-err);
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| 434 | else
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| 435 | return PJ_SUCCESS;
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| 436 | }
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| 437 |
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| 438 | /*
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| 439 | * Get remote's name.
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| 440 | */
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| 441 | PJ_DEF(pj_status_t) pj_sock_getpeername( pj_sock_t sockfd,
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| 442 | pj_sockaddr_t *addr,
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| 443 | int *namelen)
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| 444 | {
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| 445 | mm_segment_t oldfs;
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| 446 | long err;
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| 447 |
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| 448 | PJ_CHECK_STACK();
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| 449 |
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| 450 | oldfs = get_fs();
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| 451 | set_fs(KERNEL_DS);
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| 452 |
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| 453 | err = sys_getpeername( sockfd, addr, namelen);
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| 454 |
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| 455 | set_fs(oldfs);
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| 456 |
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| 457 | if (err)
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| 458 | return PJ_RETURN_OS_ERROR(-err);
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| 459 | else
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| 460 | return PJ_SUCCESS;
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| 461 | }
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| 462 |
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| 463 | /*
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| 464 | * Get socket name.
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| 465 | */
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| 466 | PJ_DEF(pj_status_t) pj_sock_getsockname( pj_sock_t sockfd,
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| 467 | pj_sockaddr_t *addr,
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| 468 | int *namelen)
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| 469 | {
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| 470 | mm_segment_t oldfs;
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| 471 | int err;
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| 472 |
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| 473 | PJ_CHECK_STACK();
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| 474 |
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| 475 | oldfs = get_fs();
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| 476 | set_fs(KERNEL_DS);
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| 477 |
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| 478 | err = sys_getsockname( sockfd, addr, namelen );
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| 479 |
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| 480 | set_fs(oldfs);
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| 481 |
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| 482 | if (err)
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| 483 | return PJ_RETURN_OS_ERROR(-err);
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| 484 | else
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| 485 | return PJ_SUCCESS;
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| 486 | }
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| 487 |
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| 488 | /*
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| 489 | * Send data
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| 490 | */
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| 491 | PJ_DEF(pj_status_t) pj_sock_send( pj_sock_t sockfd,
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| 492 | const void *buf,
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| 493 | pj_ssize_t *len,
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| 494 | unsigned flags)
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| 495 | {
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| 496 | return pj_sock_sendto(sockfd, buf, len, flags, NULL, 0);
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| 497 | }
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| 498 |
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| 499 |
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| 500 | /*
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| 501 | * Send data.
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| 502 | */
|
| 503 | PJ_DEF(pj_status_t) pj_sock_sendto( pj_sock_t sockfd,
|
| 504 | const void *buff,
|
| 505 | pj_ssize_t *len,
|
| 506 | unsigned flags,
|
| 507 | const pj_sockaddr_t *addr,
|
| 508 | int addr_len)
|
| 509 | {
|
| 510 | long err;
|
| 511 | mm_segment_t oldfs;
|
| 512 |
|
| 513 | PJ_CHECK_STACK();
|
| 514 |
|
| 515 | oldfs = get_fs();
|
| 516 | set_fs(KERNEL_DS);
|
| 517 |
|
| 518 | err = *len = sys_sendto( sockfd, (void*)buff, *len, flags,
|
| 519 | (void*)addr, addr_len );
|
| 520 |
|
| 521 | set_fs(oldfs);
|
| 522 |
|
| 523 | if (err >= 0) {
|
| 524 | return PJ_SUCCESS;
|
| 525 | }
|
| 526 | else {
|
| 527 | return PJ_RETURN_OS_ERROR(-err);
|
| 528 | }
|
| 529 | }
|
| 530 |
|
| 531 | /*
|
| 532 | * Receive data.
|
| 533 | */
|
| 534 | PJ_DEF(pj_status_t) pj_sock_recv( pj_sock_t sockfd,
|
| 535 | void *buf,
|
| 536 | pj_ssize_t *len,
|
| 537 | unsigned flags)
|
| 538 | {
|
| 539 | return pj_sock_recvfrom(sockfd, buf, len, flags, NULL, NULL);
|
| 540 | }
|
| 541 |
|
| 542 | /*
|
| 543 | * Receive data.
|
| 544 | */
|
| 545 | PJ_DEF(pj_status_t) pj_sock_recvfrom( pj_sock_t sockfd,
|
| 546 | void *buff,
|
| 547 | pj_ssize_t *size,
|
| 548 | unsigned flags,
|
| 549 | pj_sockaddr_t *from,
|
| 550 | int *fromlen)
|
| 551 | {
|
| 552 | mm_segment_t oldfs;
|
| 553 | long err;
|
| 554 |
|
| 555 | PJ_CHECK_STACK();
|
| 556 |
|
| 557 | oldfs = get_fs();
|
| 558 | set_fs(KERNEL_DS);
|
| 559 |
|
| 560 | err = *size = sys_recvfrom( sockfd, buff, *size, flags, from, fromlen);
|
| 561 |
|
| 562 | set_fs(oldfs);
|
| 563 |
|
| 564 | if (err >= 0) {
|
| 565 | return PJ_SUCCESS;
|
| 566 | }
|
| 567 | else {
|
| 568 | return PJ_RETURN_OS_ERROR(-err);
|
| 569 | }
|
| 570 | }
|
| 571 |
|
| 572 | /*
|
| 573 | * Get socket option.
|
| 574 | */
|
| 575 | PJ_DEF(pj_status_t) pj_sock_getsockopt( pj_sock_t sockfd,
|
| 576 | pj_uint16_t level,
|
| 577 | pj_uint16_t optname,
|
| 578 | void *optval,
|
| 579 | int *optlen)
|
| 580 | {
|
| 581 | mm_segment_t oldfs;
|
| 582 | long err;
|
| 583 |
|
| 584 | PJ_CHECK_STACK();
|
| 585 |
|
| 586 | oldfs = get_fs();
|
| 587 | set_fs(KERNEL_DS);
|
| 588 |
|
| 589 | err = sys_getsockopt( sockfd, level, optname, optval, optlen);
|
| 590 |
|
| 591 | set_fs(oldfs);
|
| 592 |
|
| 593 | if (err)
|
| 594 | return PJ_RETURN_OS_ERROR(-err);
|
| 595 | else
|
| 596 | return PJ_SUCCESS;
|
| 597 | }
|
| 598 |
|
| 599 | /*
|
| 600 | * Set socket option.
|
| 601 | */
|
| 602 | PJ_DEF(pj_status_t) pj_sock_setsockopt( pj_sock_t sockfd,
|
| 603 | pj_uint16_t level,
|
| 604 | pj_uint16_t optname,
|
| 605 | const void *optval,
|
| 606 | int optlen)
|
| 607 | {
|
| 608 | long err;
|
| 609 | mm_segment_t oldfs;
|
| 610 |
|
| 611 | PJ_CHECK_STACK();
|
| 612 |
|
| 613 |
|
| 614 | oldfs = get_fs();
|
| 615 | set_fs(KERNEL_DS);
|
| 616 |
|
| 617 | err = sys_setsockopt( sockfd, level, optname, (void*)optval, optlen);
|
| 618 |
|
| 619 | set_fs(oldfs);
|
| 620 |
|
| 621 | if (err)
|
| 622 | return PJ_RETURN_OS_ERROR(-err);
|
| 623 | else
|
| 624 | return PJ_SUCCESS;
|
| 625 | }
|
| 626 |
|
| 627 | /*
|
| 628 | * Shutdown socket.
|
| 629 | */
|
| 630 | #if PJ_HAS_TCP
|
| 631 | PJ_DEF(pj_status_t) pj_sock_shutdown( pj_sock_t sockfd,
|
| 632 | int how)
|
| 633 | {
|
| 634 | long err;
|
| 635 |
|
| 636 | PJ_CHECK_STACK();
|
| 637 |
|
| 638 | err = sys_shutdown(sockfd, how);
|
| 639 |
|
| 640 | if (err)
|
| 641 | return PJ_RETURN_OS_ERROR(-err);
|
| 642 | else
|
| 643 | return PJ_SUCCESS;
|
| 644 | }
|
| 645 |
|
| 646 | /*
|
| 647 | * Start listening to incoming connections.
|
| 648 | */
|
| 649 | PJ_DEF(pj_status_t) pj_sock_listen( pj_sock_t sockfd,
|
| 650 | int backlog)
|
| 651 | {
|
| 652 | long err;
|
| 653 |
|
| 654 | PJ_CHECK_STACK();
|
| 655 |
|
| 656 | err = sys_listen( sockfd, backlog );
|
| 657 |
|
| 658 | if (err)
|
| 659 | return PJ_RETURN_OS_ERROR(-err);
|
| 660 | else
|
| 661 | return PJ_SUCCESS;
|
| 662 | }
|
| 663 |
|
| 664 | /*
|
| 665 | * Connect socket.
|
| 666 | */
|
| 667 | PJ_DEF(pj_status_t) pj_sock_connect( pj_sock_t sockfd,
|
| 668 | const pj_sockaddr_t *addr,
|
| 669 | int namelen)
|
| 670 | {
|
| 671 | long err;
|
| 672 | mm_segment_t oldfs;
|
| 673 |
|
| 674 | PJ_CHECK_STACK();
|
| 675 |
|
| 676 | oldfs = get_fs();
|
| 677 | set_fs(KERNEL_DS);
|
| 678 |
|
| 679 | err = sys_connect( sockfd, (void*)addr, namelen );
|
| 680 |
|
| 681 | set_fs(oldfs);
|
| 682 |
|
| 683 | if (err)
|
| 684 | return PJ_RETURN_OS_ERROR(-err);
|
| 685 | else
|
| 686 | return PJ_SUCCESS;
|
| 687 | }
|
| 688 |
|
| 689 | /*
|
| 690 | * Accept incoming connections
|
| 691 | */
|
| 692 | PJ_DEF(pj_status_t) pj_sock_accept( pj_sock_t sockfd,
|
| 693 | pj_sock_t *newsockfd,
|
| 694 | pj_sockaddr_t *addr,
|
| 695 | int *addrlen)
|
| 696 | {
|
| 697 | long err;
|
| 698 |
|
| 699 | PJ_CHECK_STACK();
|
| 700 |
|
| 701 | PJ_ASSERT_RETURN(newsockfd != NULL, PJ_EINVAL);
|
| 702 |
|
| 703 | err = sys_accept( sockfd, addr, addrlen);
|
| 704 |
|
| 705 | if (err < 0) {
|
| 706 | *newsockfd = PJ_INVALID_SOCKET;
|
| 707 | return PJ_RETURN_OS_ERROR(-err);
|
| 708 | }
|
| 709 | else {
|
| 710 | *newsockfd = err;
|
| 711 | return PJ_SUCCESS;
|
| 712 | }
|
| 713 | }
|
| 714 | #endif /* PJ_HAS_TCP */
|
| 715 |
|
| 716 |
|
| 717 |
|
| 718 | /*
|
| 719 | * Permission to steal inet_ntoa() and inet_aton() as long as this notice below
|
| 720 | * is included:
|
| 721 | */
|
| 722 | /*
|
| 723 | * Copyright (c) 1983, 1993
|
| 724 | * The Regents of the University of California. All rights reserved.
|
| 725 | *
|
| 726 | * Redistribution and use in source and binary forms, with or without
|
| 727 | * modification, are permitted provided that the following conditions
|
| 728 | * are met:
|
| 729 | * 1. Redistributions of source code must retain the above copyright
|
| 730 | * notice, this list of conditions and the following disclaimer.
|
| 731 | * 2. Redistributions in binary form must reproduce the above copyright
|
| 732 | * notice, this list of conditions and the following disclaimer in the
|
| 733 | * documentation and/or other materials provided with the distribution.
|
| 734 | * 3. All advertising materials mentioning features or use of this software
|
| 735 | * must display the following acknowledgement:
|
| 736 | * This product includes software developed by the University of
|
| 737 | * California, Berkeley and its contributors.
|
| 738 | * 4. Neither the name of the University nor the names of its contributors
|
| 739 | * may be used to endorse or promote products derived from this software
|
| 740 | * without specific prior written permission.
|
| 741 | *
|
| 742 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
| 743 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
| 744 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
| 745 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
| 746 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
| 747 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
| 748 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
| 749 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
| 750 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
| 751 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
| 752 | * SUCH DAMAGE.
|
| 753 | */
|
| 754 |
|