xref: /freebsd/lib/libfetch/fetch.h (revision d8a0fe102c0cfdfcd5b818f850eff09d8536c9bc)
1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
3  *
4  * Copyright (c) 1998-2004 Dag-Erling Smørgrav
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer
12  *    in this position and unchanged.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. The name of the author may not be used to endorse or promote products
17  *    derived from this software without specific prior written permission
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29  *
30  * $FreeBSD$
31  */
32 
33 #ifndef _FETCH_H_INCLUDED
34 #define _FETCH_H_INCLUDED
35 
36 #define _LIBFETCH_VER "libfetch/2.0"
37 
38 #define URL_SCHEMELEN 16
39 #define URL_USERLEN 256
40 #define URL_PWDLEN 256
41 
42 struct url {
43 	char		 scheme[URL_SCHEMELEN+1];
44 	char		 user[URL_USERLEN+1];
45 	char		 pwd[URL_PWDLEN+1];
46 	char		 host[MAXHOSTNAMELEN+1];
47 	int		 port;
48 	char		*doc;
49 	off_t		 offset;
50 	size_t		 length;
51 	time_t		 ims_time;
52 	int		 netrcfd;
53 };
54 
55 struct url_stat {
56 	off_t		 size;
57 	time_t		 atime;
58 	time_t		 mtime;
59 };
60 
61 struct url_ent {
62 	char		 name[PATH_MAX];
63 	struct url_stat	 stat;
64 };
65 
66 /* Recognized schemes */
67 #define SCHEME_FTP	"ftp"
68 #define SCHEME_HTTP	"http"
69 #define SCHEME_HTTPS	"https"
70 #define SCHEME_FILE	"file"
71 
72 /* Error codes */
73 #define	FETCH_ABORT	 1
74 #define	FETCH_AUTH	 2
75 #define	FETCH_DOWN	 3
76 #define	FETCH_EXISTS	 4
77 #define	FETCH_FULL	 5
78 #define	FETCH_INFO	 6
79 #define	FETCH_MEMORY	 7
80 #define	FETCH_MOVED	 8
81 #define	FETCH_NETWORK	 9
82 #define	FETCH_OK	10
83 #define	FETCH_PROTO	11
84 #define	FETCH_RESOLV	12
85 #define	FETCH_SERVER	13
86 #define	FETCH_TEMP	14
87 #define	FETCH_TIMEOUT	15
88 #define	FETCH_UNAVAIL	16
89 #define	FETCH_UNKNOWN	17
90 #define	FETCH_URL	18
91 #define	FETCH_VERBOSE	19
92 
93 __BEGIN_DECLS
94 
95 /* FILE-specific functions */
96 FILE		*fetchXGetFile(struct url *, struct url_stat *, const char *);
97 FILE		*fetchGetFile(struct url *, const char *);
98 FILE		*fetchPutFile(struct url *, const char *);
99 int		 fetchStatFile(struct url *, struct url_stat *, const char *);
100 struct url_ent	*fetchListFile(struct url *, const char *);
101 
102 /* HTTP-specific functions */
103 FILE		*fetchXGetHTTP(struct url *, struct url_stat *, const char *);
104 FILE		*fetchGetHTTP(struct url *, const char *);
105 FILE		*fetchPutHTTP(struct url *, const char *);
106 int		 fetchStatHTTP(struct url *, struct url_stat *, const char *);
107 struct url_ent	*fetchListHTTP(struct url *, const char *);
108 FILE		*fetchReqHTTP(struct url *, const char *, const char *,
109 		    const char *, const char *);
110 
111 /* FTP-specific functions */
112 FILE		*fetchXGetFTP(struct url *, struct url_stat *, const char *);
113 FILE		*fetchGetFTP(struct url *, const char *);
114 FILE		*fetchPutFTP(struct url *, const char *);
115 int		 fetchStatFTP(struct url *, struct url_stat *, const char *);
116 struct url_ent	*fetchListFTP(struct url *, const char *);
117 
118 /* Generic functions */
119 FILE		*fetchXGetURL(const char *, struct url_stat *, const char *);
120 FILE		*fetchGetURL(const char *, const char *);
121 FILE		*fetchPutURL(const char *, const char *);
122 int		 fetchStatURL(const char *, struct url_stat *, const char *);
123 struct url_ent	*fetchListURL(const char *, const char *);
124 FILE		*fetchXGet(struct url *, struct url_stat *, const char *);
125 FILE		*fetchGet(struct url *, const char *);
126 FILE		*fetchPut(struct url *, const char *);
127 int		 fetchStat(struct url *, struct url_stat *, const char *);
128 struct url_ent	*fetchList(struct url *, const char *);
129 
130 /* URL parsing */
131 struct url	*fetchMakeURL(const char *, const char *, int,
132 		     const char *, const char *, const char *);
133 struct url	*fetchParseURL(const char *);
134 void		 fetchFreeURL(struct url *);
135 
136 __END_DECLS
137 
138 /* Authentication */
139 typedef int (*auth_t)(struct url *);
140 extern auth_t		 fetchAuthMethod;
141 
142 /* Last error code */
143 extern int		 fetchLastErrCode;
144 #define MAXERRSTRING 256
145 extern char		 fetchLastErrString[MAXERRSTRING];
146 
147 /* I/O timeout */
148 extern int		 fetchTimeout;
149 
150 /* Restart interrupted syscalls */
151 extern int		 fetchRestartCalls;
152 
153 /* Extra verbosity */
154 extern int		 fetchDebug;
155 
156 #endif
157