]> git.sur5r.net Git - openldap/blob - libraries/liblutil/fetch.c
Fix prev commit again, relative paths are legal.
[openldap] / libraries / liblutil / fetch.c
1 /* fetch.c - routines for fetching data at URLs */
2 /* $OpenLDAP$ */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4  *
5  * Copyright 1999-2005 The OpenLDAP Foundation.
6  * Portions Copyright 1999-2003 Kurt D. Zeilenga.
7  * All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted only as authorized by the OpenLDAP
11  * Public License.
12  *
13  * A copy of this license is available in the file LICENSE in the
14  * top-level directory of the distribution or, alternatively, at
15  * <http://www.OpenLDAP.org/license.html>.
16  */
17 /* This work was initially developed by Kurt D. Zeilenga for
18  * inclusion in OpenLDAP Software.
19  */
20
21 #include "portable.h"
22
23 #include <stdio.h>
24
25 #include <ac/stdlib.h>
26
27 #include <ac/string.h>
28 #include <ac/socket.h>
29 #include <ac/time.h>
30
31 #ifdef HAVE_FETCH
32 #include <fetch.h>
33 #endif
34
35 #include "ldap_log.h"
36 #include "lber_pvt.h"
37 #include "ldap_pvt.h"
38 #include "ldap_config.h"
39 #include "ldif.h"
40
41 FILE *
42 ldif_open_url(
43         LDAP_CONST char *urlstr )
44 {
45         FILE *url;
46         char *p = NULL;
47 #ifdef HAVE_FETCH
48         url = fetchGetURL( (char*) urlstr, "" );
49
50 #else
51         if( strncasecmp( "file://", urlstr, sizeof("file://")-1 ) == 0 ) {
52                 p = strchr( &urlstr[sizeof("file://")-1], '/' );
53                 if( p == NULL ) {
54                         return NULL;
55                 }
56
57                 /* we don't check for LDAP_DIRSEP since URLs should contain '/' */
58                 if( p[1] == '.' && ( p[2] == '/' || ( p[2] == '.' && p[3] == '/' ))) {
59                         /* skip over false root */
60                         p++;
61                 }
62
63                 p = ber_strdup( p );
64                 ldap_pvt_hex_unescape( p );
65
66                 url = fopen( p, "rb" );
67
68                 ber_memfree( p );
69         } else {
70                 return NULL;
71         }
72 #endif
73         return url;
74 }
75
76 int
77 ldif_fetch_url(
78     LDAP_CONST char     *urlstr,
79     char        **valuep,
80     ber_len_t *vlenp )
81 {
82         FILE *url;
83         char buffer[1024];
84         char *p = NULL;
85         size_t total;
86         size_t bytes;
87
88         *valuep = NULL;
89         *vlenp = 0;
90
91         url = ldif_open_url( urlstr );
92
93         if( url == NULL ) {
94                 return -1;
95         }
96
97         total = 0;
98
99         while( (bytes = fread( buffer, 1, sizeof(buffer), url )) != 0 ) {
100                 char *newp = ber_memrealloc( p, total + bytes + 1 );
101                 if( newp == NULL ) {
102                         ber_memfree( p );
103                         fclose( url );
104                         return -1;
105                 }
106                 p = newp;
107                 AC_MEMCPY( &p[total], buffer, bytes );
108                 total += bytes;
109         }
110
111         fclose( url );
112
113         if( total == 0 ) {
114                 char *newp = ber_memrealloc( p, 1 );
115                 if( newp == NULL ) {
116                         ber_memfree( p );
117                         return -1;
118                 }
119                 p = newp;
120         }
121
122         p[total] = '\0';
123         *valuep = p;
124         *vlenp = total;
125
126         return 0;
127 }