xref: /freebsd/lib/libfetch/fetch.h (revision fcb560670601b2a4d87bb31d7531c8dcc37ee71b)
1 /*-
2  * Copyright (c) 1998-2004 Dag-Erling Smørgrav
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer
10  *    in this position and unchanged.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. The name of the author may not be used to endorse or promote products
15  *    derived from this software without specific prior written permission
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 
31 #ifndef _FETCH_H_INCLUDED
32 #define _FETCH_H_INCLUDED
33 
34 #define _LIBFETCH_VER "libfetch/2.0"
35 
36 #define URL_SCHEMELEN 16
37 #define URL_USERLEN 256
38 #define URL_PWDLEN 256
39 
40 struct url {
41 	char		 scheme[URL_SCHEMELEN+1];
42 	char		 user[URL_USERLEN+1];
43 	char		 pwd[URL_PWDLEN+1];
44 	char		 host[MAXHOSTNAMELEN+1];
45 	int		 port;
46 	char		*doc;
47 	off_t		 offset;
48 	size_t		 length;
49 	time_t		 ims_time;
50 };
51 
52 struct url_stat {
53 	off_t		 size;
54 	time_t		 atime;
55 	time_t		 mtime;
56 };
57 
58 struct url_ent {
59 	char		 name[PATH_MAX];
60 	struct url_stat	 stat;
61 };
62 
63 /* Recognized schemes */
64 #define SCHEME_FTP	"ftp"
65 #define SCHEME_HTTP	"http"
66 #define SCHEME_HTTPS	"https"
67 #define SCHEME_FILE	"file"
68 
69 /* Error codes */
70 #define	FETCH_ABORT	 1
71 #define	FETCH_AUTH	 2
72 #define	FETCH_DOWN	 3
73 #define	FETCH_EXISTS	 4
74 #define	FETCH_FULL	 5
75 #define	FETCH_INFO	 6
76 #define	FETCH_MEMORY	 7
77 #define	FETCH_MOVED	 8
78 #define	FETCH_NETWORK	 9
79 #define	FETCH_OK	10
80 #define	FETCH_PROTO	11
81 #define	FETCH_RESOLV	12
82 #define	FETCH_SERVER	13
83 #define	FETCH_TEMP	14
84 #define	FETCH_TIMEOUT	15
85 #define	FETCH_UNAVAIL	16
86 #define	FETCH_UNKNOWN	17
87 #define	FETCH_URL	18
88 #define	FETCH_VERBOSE	19
89 
90 __BEGIN_DECLS
91 
92 /* FILE-specific functions */
93 FILE		*fetchXGetFile(struct url *, struct url_stat *, const char *);
94 FILE		*fetchGetFile(struct url *, const char *);
95 FILE		*fetchPutFile(struct url *, const char *);
96 int		 fetchStatFile(struct url *, struct url_stat *, const char *);
97 struct url_ent	*fetchListFile(struct url *, const char *);
98 
99 /* HTTP-specific functions */
100 FILE		*fetchXGetHTTP(struct url *, struct url_stat *, const char *);
101 FILE		*fetchGetHTTP(struct url *, const char *);
102 FILE		*fetchPutHTTP(struct url *, const char *);
103 int		 fetchStatHTTP(struct url *, struct url_stat *, const char *);
104 struct url_ent	*fetchListHTTP(struct url *, const char *);
105 FILE		*fetchReqHTTP(struct url *, const char *, const char *,
106 		    const char *, const char *);
107 
108 /* FTP-specific functions */
109 FILE		*fetchXGetFTP(struct url *, struct url_stat *, const char *);
110 FILE		*fetchGetFTP(struct url *, const char *);
111 FILE		*fetchPutFTP(struct url *, const char *);
112 int		 fetchStatFTP(struct url *, struct url_stat *, const char *);
113 struct url_ent	*fetchListFTP(struct url *, const char *);
114 
115 /* Generic functions */
116 FILE		*fetchXGetURL(const char *, struct url_stat *, const char *);
117 FILE		*fetchGetURL(const char *, const char *);
118 FILE		*fetchPutURL(const char *, const char *);
119 int		 fetchStatURL(const char *, struct url_stat *, const char *);
120 struct url_ent	*fetchListURL(const char *, const char *);
121 FILE		*fetchXGet(struct url *, struct url_stat *, const char *);
122 FILE		*fetchGet(struct url *, const char *);
123 FILE		*fetchPut(struct url *, const char *);
124 int		 fetchStat(struct url *, struct url_stat *, const char *);
125 struct url_ent	*fetchList(struct url *, const char *);
126 
127 /* URL parsing */
128 struct url	*fetchMakeURL(const char *, const char *, int,
129 		     const char *, const char *, const char *);
130 struct url	*fetchParseURL(const char *);
131 void		 fetchFreeURL(struct url *);
132 
133 __END_DECLS
134 
135 /* Authentication */
136 typedef int (*auth_t)(struct url *);
137 extern auth_t		 fetchAuthMethod;
138 
139 /* Last error code */
140 extern int		 fetchLastErrCode;
141 #define MAXERRSTRING 256
142 extern char		 fetchLastErrString[MAXERRSTRING];
143 
144 /* I/O timeout */
145 extern int		 fetchTimeout;
146 
147 /* Restart interrupted syscalls */
148 extern int		 fetchRestartCalls;
149 
150 /* Extra verbosity */
151 extern int		 fetchDebug;
152 
153 #endif
154