1/* Command line parsing. 2 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 3 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. 4 5 This file is part of GNU Wget. 6 7 GNU Wget is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 GNU Wget is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with Wget. If not, see <http://www.gnu.org/licenses/>. 19*/ 20 21#include "wget.h" 22#include "exits.h" 23 24/* Final exit code possibilities. Exit codes 1 and 2 are reserved 25 * for situations that lead to direct exits from Wget, not using the 26 * value of final_exit_status. */ 27enum 28 { 29 WGET_EXIT_SUCCESS = 0, 30 31 WGET_EXIT_MINIMUM = 3, 32 WGET_EXIT_IO_FAIL = WGET_EXIT_MINIMUM, 33 WGET_EXIT_NETWORK_FAIL = 4, 34 WGET_EXIT_SSL_AUTH_FAIL = 5, 35 WGET_EXIT_SERVER_AUTH_FAIL = 6, 36 WGET_EXIT_PROTOCOL_ERROR = 7, 37 WGET_EXIT_SERVER_ERROR = 8, 38 39 WGET_EXIT_UNKNOWN 40 }; 41 42static int final_exit_status = WGET_EXIT_SUCCESS; 43 44/* XXX: I don't like that newly-added uerr_t codes will doubtless fall 45 through the craccks, or the fact that we seem to have way more 46 codes than we know what to do with. Need to go through and sort 47 through the truly essential codes, and merge the rest with 48 those. Quite a few are never even used! 49 50 Quite a few of the codes below would have no business being 51 returned to retrieve_url's caller, but since it's very difficult to 52 determine which do and which don't, I grab virtually all of them to 53 be safe. */ 54static int 55get_status_for_err (uerr_t err) 56{ 57 switch (err) 58 { 59 case RETROK: 60 return WGET_EXIT_SUCCESS; 61 case FOPENERR: case FOPEN_EXCL_ERR: case FWRITEERR: case WRITEFAILED: 62 return WGET_EXIT_IO_FAIL; 63 case NOCONERROR: case HOSTERR: case CONSOCKERR: case CONERROR: 64 case CONSSLERR: case CONIMPOSSIBLE: case FTPRERR: case FTPINVPASV: 65 case READERR: case TRYLIMEXC: 66 return WGET_EXIT_NETWORK_FAIL; 67 case VERIFCERTERR: 68 return WGET_EXIT_SSL_AUTH_FAIL; 69 case FTPLOGINC: case FTPLOGREFUSED: case AUTHFAILED: 70 return WGET_EXIT_SERVER_AUTH_FAIL; 71 case HEOF: case HERR: 72 return WGET_EXIT_PROTOCOL_ERROR; 73 case WRONGCODE: case FTPPORTERR: case FTPSYSERR: 74 case FTPNSFOD: case FTPUNKNOWNTYPE: case FTPSRVERR: 75 case FTPRETRINT: case FTPRESTFAIL: case FTPNOPASV: 76 case CONTNOTSUPPORTED: case RANGEERR: case RETRBADPATTERN: 77 case PROXERR: 78 return WGET_EXIT_SERVER_ERROR; 79 case URLERROR: case QUOTEXC: case SSLINITFAILED: 80 default: 81 return WGET_EXIT_UNKNOWN; 82 } 83} 84 85/* inform_exit_status 86 * 87 * Ensure that Wget's exit status will reflect the problem indicated 88 * by ERR, unless the exit status has already been set to reflect a more 89 * important problem. */ 90void 91inform_exit_status (uerr_t err) 92{ 93 int new_status = get_status_for_err (err); 94 95 if (new_status != WGET_EXIT_SUCCESS 96 && (final_exit_status == WGET_EXIT_SUCCESS 97 || new_status < final_exit_status)) 98 { 99 final_exit_status = new_status; 100 } 101} 102 103int 104get_exit_status (void) 105{ 106 return 107 (final_exit_status == WGET_EXIT_UNKNOWN) 108 ? 1 109 : final_exit_status; 110} 111 112