1 /*- 2 * Copyright (c) 1998 Dag-Erling Co�dan Sm�rgrav 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 #include <sys/param.h> 32 #include <sys/stat.h> 33 34 #include <dirent.h> 35 #include <stdio.h> 36 #include <string.h> 37 38 #include "fetch.h" 39 #include "common.h" 40 41 FILE * 42 fetchGetFile(struct url *u, char *flags) 43 { 44 FILE *f; 45 46 f = fopen(u->doc, "r"); 47 48 if (f == NULL) 49 _fetch_syserr(); 50 51 if (u->offset && fseek(f, u->offset, SEEK_SET) == -1) { 52 fclose(f); 53 _fetch_syserr(); 54 } 55 56 return f; 57 } 58 59 FILE * 60 fetchPutFile(struct url *u, char *flags) 61 { 62 FILE *f; 63 64 if (flags && strchr(flags, 'a')) 65 f = fopen(u->doc, "a"); 66 else 67 f = fopen(u->doc, "w+"); 68 69 if (f == NULL) 70 _fetch_syserr(); 71 72 if (u->offset && fseek(f, u->offset, SEEK_SET) == -1) { 73 fclose(f); 74 _fetch_syserr(); 75 } 76 77 return f; 78 } 79 80 static int 81 _fetch_stat_file(char *fn, struct url_stat *us) 82 { 83 struct stat sb; 84 85 us->size = -1; 86 us->atime = us->mtime = 0; 87 if (stat(fn, &sb) == -1) { 88 _fetch_syserr(); 89 return -1; 90 } 91 us->size = sb.st_size; 92 us->atime = sb.st_atime; 93 us->mtime = sb.st_mtime; 94 return 0; 95 } 96 97 int 98 fetchStatFile(struct url *u, struct url_stat *us, char *flags) 99 { 100 return _fetch_stat_file(u->doc, us); 101 } 102 103 struct url_ent * 104 fetchListFile(struct url *u, char *flags) 105 { 106 DIR *dir; 107 struct dirent *de; 108 struct url_stat us; 109 struct url_ent *ue; 110 int size, len; 111 char fn[MAXPATHLEN], *p; 112 int l; 113 114 if ((dir = opendir(u->doc)) == NULL) { 115 _fetch_syserr(); 116 return NULL; 117 } 118 119 ue = NULL; 120 strncpy(fn, u->doc, sizeof fn - 2); 121 fn[sizeof fn - 2] = 0; 122 strcat(fn, "/"); 123 p = strchr(fn, 0); 124 l = sizeof fn - strlen(fn) - 1; 125 126 while ((de = readdir(dir)) != NULL) { 127 strncpy(p, de->d_name, l - 1); 128 p[l - 1] = 0; 129 if (_fetch_stat_file(fn, &us) == -1) 130 /* should I return a partial result, or abort? */ 131 break; 132 _fetch_add_entry(&ue, &size, &len, de->d_name, &us); 133 } 134 135 return ue; 136 } 137