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      1 /*-
      2  * Copyright (c) 1998-2004 Dag-Erling Codan Smrgrav
      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: src/lib/libfetch/fetch.h,v 1.25.8.1 2006/11/11 00:16:07 des Exp $
     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 };
     50 
     51 struct url_stat {
     52 	off_t		 size;
     53 	time_t		 atime;
     54 	time_t		 mtime;
     55 };
     56 
     57 struct url_ent {
     58 	char		 name[PATH_MAX];
     59 	struct url_stat	 stat;
     60 };
     61 
     62 /* Recognized schemes */
     63 #define SCHEME_FTP	"ftp"
     64 #define SCHEME_HTTP	"http"
     65 #define SCHEME_HTTPS	"https"
     66 #define SCHEME_FILE	"file"
     67 
     68 /* Error codes */
     69 #define	FETCH_ABORT	 1
     70 #define	FETCH_AUTH	 2
     71 #define	FETCH_DOWN	 3
     72 #define	FETCH_EXISTS	 4
     73 #define	FETCH_FULL	 5
     74 #define	FETCH_INFO	 6
     75 #define	FETCH_MEMORY	 7
     76 #define	FETCH_MOVED	 8
     77 #define	FETCH_NETWORK	 9
     78 #define	FETCH_OK	10
     79 #define	FETCH_PROTO	11
     80 #define	FETCH_RESOLV	12
     81 #define	FETCH_SERVER	13
     82 #define	FETCH_TEMP	14
     83 #define	FETCH_TIMEOUT	15
     84 #define	FETCH_UNAVAIL	16
     85 #define	FETCH_UNKNOWN	17
     86 #define	FETCH_URL	18
     87 #define	FETCH_VERBOSE	19
     88 
     89 __BEGIN_DECLS
     90 
     91 /* FILE-specific functions */
     92 FILE		*fetchXGetFile(struct url *, struct url_stat *, const char *);
     93 FILE		*fetchGetFile(struct url *, const char *);
     94 FILE		*fetchPutFile(struct url *, const char *);
     95 int		 fetchStatFile(struct url *, struct url_stat *, const char *);
     96 struct url_ent	*fetchListFile(struct url *, const char *);
     97 
     98 /* HTTP-specific functions */
     99 FILE		*fetchXGetHTTP(struct url *, struct url_stat *, const char *);
    100 FILE		*fetchGetHTTP(struct url *, const char *);
    101 FILE		*fetchPutHTTP(struct url *, const char *);
    102 int		 fetchStatHTTP(struct url *, struct url_stat *, const char *);
    103 struct url_ent	*fetchListHTTP(struct url *, const char *);
    104 
    105 /* FTP-specific functions */
    106 FILE		*fetchXGetFTP(struct url *, struct url_stat *, const char *);
    107 FILE		*fetchGetFTP(struct url *, const char *);
    108 FILE		*fetchPutFTP(struct url *, const char *);
    109 int		 fetchStatFTP(struct url *, struct url_stat *, const char *);
    110 struct url_ent	*fetchListFTP(struct url *, const char *);
    111 
    112 /* Generic functions */
    113 FILE		*fetchXGetURL(const char *, struct url_stat *, const char *);
    114 FILE		*fetchGetURL(const char *, const char *);
    115 FILE		*fetchPutURL(const char *, const char *);
    116 int		 fetchStatURL(const char *, struct url_stat *, const char *);
    117 struct url_ent	*fetchListURL(const char *, const char *);
    118 FILE		*fetchXGet(struct url *, struct url_stat *, const char *);
    119 FILE		*fetchGet(struct url *, const char *);
    120 FILE		*fetchPut(struct url *, const char *);
    121 int		 fetchStat(struct url *, struct url_stat *, const char *);
    122 struct url_ent	*fetchList(struct url *, const char *);
    123 
    124 /* URL parsing */
    125 struct url	*fetchMakeURL(const char *, const char *, int,
    126 		     const char *, const char *, const char *);
    127 struct url	*fetchParseURL(const char *);
    128 void		 fetchFreeURL(struct url *);
    129 
    130 __END_DECLS
    131 
    132 /* Authentication */
    133 typedef int (*auth_t)(struct url *);
    134 extern auth_t		 fetchAuthMethod;
    135 
    136 /* Last error code */
    137 extern int		 fetchLastErrCode;
    138 #define MAXERRSTRING 256
    139 extern char		 fetchLastErrString[MAXERRSTRING];
    140 
    141 /* I/O timeout */
    142 extern int		 fetchTimeout;
    143 
    144 /* Restart interrupted syscalls */
    145 extern int		 fetchRestartCalls;
    146 
    147 /* Extra verbosity */
    148 extern int		 fetchDebug;
    149 
    150 #endif
    151