main.c

   1 /*
   2 Copyright (c) 2003-2006 by Juliusz Chroboczek
   3
   4 Permission is hereby granted, free of charge, to any person obtaining a copy
   5 of this software and associated documentation files (the "Software"), to deal
   6 in the Software without restriction, including without limitation the rights
   7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   8 copies of the Software, and to permit persons to whom the Software is
   9 furnished to do so, subject to the following conditions:
  10
  11 The above copyright notice and this permission notice shall be included in
  12 all copies or substantial portions of the Software.
  13
  14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  20 THE SOFTWARE.
  21 */
  22
  23 #include "polipo.h"
  24
  25 AtomPtr configFile = NULL;
  26 AtomPtr pidFile = NULL;
  27 int daemonise = 0;
  28
  29 static void
  30 usage(char *argv0)
  31 {
  32     fprintf(stderr,
  33             "%s [ -h ] [ -v ] [ -x ] [ -c filename ] [ -- ] [ var=val... ]\n",
  34             argv0);
  35     fprintf(stderr, "  -h: display this message.\n");
  36     fprintf(stderr, "  -v: display the list of configuration variables.\n");
  37     fprintf(stderr, "  -x: perform expiry on the disk cache.\n");
  38     fprintf(stderr, "  -c: specify the configuration file to use.\n");
  39 }
  40
  41 int
  42 main(int argc, char **argv)
  43 {
  44     FdEventHandlerPtr listener;
  45     int i;
  46     int rc;
  47     int expire = 0, printConfig = 0;
  48
  49     initAtoms();
  50     CONFIG_VARIABLE(daemonise, CONFIG_BOOLEAN, "Run as a daemon");
  51     CONFIG_VARIABLE(pidFile, CONFIG_ATOM, "File with pid of running daemon.");
  52
  53     preinitChunks();
  54     preinitLog();
  55     preinitObject();
  56     preinitIo();
  57     preinitDns();
  58     preinitServer();
  59     preinitHttp();
  60     preinitDiskcache();
  61     preinitLocal();
  62     preinitForbidden();
  63     preinitSocks();
  64
  65     i = 1;
  66     while(i < argc) {
  67         if(argv[i][0] != '-')
  68             break;
  69         if(strcmp(argv[i], "--") == 0) {
  70             i++;
  71             break;
  72         } else if(strcmp(argv[i], "-h") == 0) {
  73             usage(argv[0]);
  74             exit(0);
  75         } else if(strcmp(argv[i], "-v") == 0) {
  76             printConfig = 1;
  77             i++;
  78         } else if(strcmp(argv[i], "-x") == 0) {
  79             expire = 1;
  80             i++;
  81         } else if(strcmp(argv[i], "-c") == 0) {
  82             i++;
  83             if(i >= argc) {
  84                 usage(argv[0]);
  85                 exit(1);
  86             }
  87             if(configFile)
  88                 releaseAtom(configFile);
  89             configFile = internAtom(argv[i]);
  90             i++;
  91         } else {
  92             usage(argv[0]);
  93             exit(1);
  94         }
  95     }
  96
  97     if(configFile)
  98         configFile = expandTilde(configFile);
  99
 100     if(configFile == NULL) {
 101         configFile = expandTilde(internAtom("~/.polipo"));
 102         if(configFile)
 103             if(access(configFile->string, F_OK) < 0) {
 104                 releaseAtom(configFile);
 105                 configFile = NULL;
 106             }
 107     }
 108
 109     if(configFile == NULL) {
 110         if(access("/etc/polipo/config", F_OK) >= 0)
 111             configFile = internAtom("/etc/polipo/config");
 112         if(configFile && access(configFile->string, F_OK) < 0) {
 113             releaseAtom(configFile);
 114             configFile = NULL;
 115         }
 116     }
 117
 118     rc = parseConfigFile(configFile);
 119     if(rc < 0)
 120         exit(1);
 121
 122     while(i < argc) {
 123         rc = parseConfigLine(argv[i], "command line", 0, 0);
 124         if(rc < 0)
 125             exit(1);
 126         i++;
 127     }
 128
 129     initChunks();
 130     initLog();
 131     initObject();
 132     if(!expire && !printConfig)
 133         initEvents();
 134     initIo();
 135     initDns();
 136     initHttp();
 137     initServer();
 138     initDiskcache();
 139     initForbidden();
 140     initSocks();
 141
 142     if(printConfig) {
 143         printConfigVariables(stdout, 0);
 144         exit(0);
 145     }
 146
 147     if(expire) {
 148         expireDiskObjects();
 149         exit(0);
 150     }
 151
 152     if(daemonise)
 153         do_daemonise(logFile == NULL || logFile->length == 0);
 154
 155     if(pidFile)
 156         writePid(pidFile->string);
 157
 158     listener = create_listener(proxyAddress->string,
 159                                proxyPort, httpAccept, NULL);
 160     if(!listener) {
 161         if(pidFile) unlink(pidFile->string);
 162         exit(1);
 163     }
 164
 165     eventLoop();
 166
 167     if(pidFile) unlink(pidFile->string);
 168     return 0;
 169 }