1 /* $NetBSD: common.h,v 1.5 2026/04/16 08:40:49 wiz Exp $ */ 2 /*- 3 * Copyright (c) 1998-2004 Dag-Erling Codan Smrgrav 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer 11 * in this position and unchanged. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * $FreeBSD: common.h,v 1.30 2007/12/18 11:03:07 des Exp $ 30 */ 31 32 #ifndef _COMMON_H_INCLUDED 33 #define _COMMON_H_INCLUDED 34 35 #define FTP_DEFAULT_PORT 21 36 #define HTTP_DEFAULT_PORT 80 37 #define FTP_DEFAULT_PROXY_PORT 21 38 #define HTTP_DEFAULT_PROXY_PORT 3128 39 40 #ifdef WITH_SSL 41 #include <openssl/crypto.h> 42 #include <openssl/x509.h> 43 #include <openssl/pem.h> 44 #include <openssl/ssl.h> 45 #include <openssl/err.h> 46 #endif 47 48 #if defined(__GNUC__) && __GNUC__ >= 3 49 #define LIBFETCH_PRINTFLIKE(fmtarg, firstvararg) \ 50 __attribute__((__format__ (__printf__, fmtarg, firstvararg))) 51 #else 52 #define LIBFETCH_PRINTFLIKE(fmtarg, firstvararg) 53 #endif 54 55 #if !defined(__sun) && !defined(__hpux) && !defined(__INTERIX) && \ 56 !defined(__digital__) && !defined(__linux) && !defined(__MINT__) && \ 57 !defined(__sgi) && !defined(__minix) && !defined(__CYGWIN__) && \ 58 !defined(_M_XENIX) 59 #define HAVE_SA_LEN 60 #endif 61 62 /* Connection */ 63 typedef struct fetchconn conn_t; 64 65 struct fetchconn { 66 int sd; /* socket descriptor */ 67 char *buf; /* buffer */ 68 size_t bufsize; /* buffer size */ 69 size_t buflen; /* length of buffer contents */ 70 int buf_events; /* poll flags for the next cycle */ 71 char *next_buf; /* pending buffer, e.g. after getln */ 72 size_t next_len; /* size of pending buffer */ 73 int err; /* last protocol reply code */ 74 #ifdef WITH_SSL 75 SSL *ssl; /* SSL handle */ 76 SSL_CTX *ssl_ctx; /* SSL context */ 77 X509 *ssl_cert; /* server certificate */ 78 # if OPENSSL_VERSION_NUMBER < 0x00909000L 79 SSL_METHOD *ssl_meth; /* SSL method */ 80 # else 81 const SSL_METHOD *ssl_meth; /* SSL method */ 82 # endif 83 #endif 84 85 char *ftp_home; 86 87 struct url *cache_url; 88 int cache_af; 89 int (*cache_close)(conn_t *); 90 conn_t *next_cached; 91 }; 92 93 /* Structure used for error message lists */ 94 struct fetcherr { 95 const int num; 96 const int cat; 97 const char *string; 98 }; 99 100 void fetch_seterr(struct fetcherr *, int); 101 void fetch_syserr(void); 102 void fetch_info(const char *, ...) LIBFETCH_PRINTFLIKE(1, 2); 103 int fetch_default_port(const char *); 104 int fetch_default_proxy_port(const char *); 105 int fetch_bind(int, int, const char *); 106 conn_t *fetch_cache_get(const struct url *, int); 107 void fetch_cache_put(conn_t *, int (*)(conn_t *)); 108 conn_t *fetch_connect(struct url *, int, int); 109 conn_t *fetch_reopen(int); 110 int fetch_ssl(conn_t *, const struct url *, int); 111 ssize_t fetch_read(conn_t *, char *, size_t); 112 int fetch_getln(conn_t *); 113 ssize_t fetch_write(conn_t *, const void *, size_t); 114 int fetch_close(conn_t *); 115 int fetch_add_entry(struct url_list *, struct url *, const char *, int); 116 int fetch_netrc_auth(struct url *url); 117 int fetch_no_proxy_match(const char *); 118 int fetch_urlpath_safe(char); 119 120 #define ftp_seterr(n) fetch_seterr(ftp_errlist, n) 121 #define http_seterr(n) fetch_seterr(http_errlist, n) 122 #define netdb_seterr(n) fetch_seterr(netdb_errlist, n) 123 #define url_seterr(n) fetch_seterr(url_errlist, n) 124 125 fetchIO *fetchIO_unopen(void *, ssize_t (*)(void *, void *, size_t), 126 ssize_t (*)(void *, const void *, size_t), void (*)(void *)); 127 128 /* 129 * I don't really like exporting http_request() and ftp_request(), 130 * but the HTTP and FTP code occasionally needs to cross-call 131 * eachother, and this saves me from adding a lot of special-case code 132 * to handle those cases. 133 * 134 * Note that _*_request() free purl, which is way ugly but saves us a 135 * whole lot of trouble. 136 */ 137 fetchIO *http_request(struct url *, const char *, 138 struct url_stat *, struct url *, const char *); 139 fetchIO *ftp_request(struct url *, const char *, const char *, 140 struct url_stat *, struct url *, const char *); 141 142 143 /* 144 * Check whether a particular flag is set 145 */ 146 #define CHECK_FLAG(x) (flags && strchr(flags, (x))) 147 148 #endif 149
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