mdw@git.distorted.org.uk Git - userv-utils/blob - www-cgi/ucgicommon.c

   1 /*
   2  * Copyright (C) 1998-1999 Ian Jackson
   3  *
   4  * This is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with userv-utils; if not, write to the Free Software
  16  * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17  *
  18  * $Id$
  19  */
  20
  21 #include <stdio.h>
  22 #include <string.h>
  23 #include <errno.h>
  24
  25 #include "ucgi.h"
  26
  27 const char *const envok[]= {
  28   "CONTENT_LENGTH",
  29   "CONTENT_TYPE",
  30   "DOCUMENT_ROOT",
  31   "GATEWAY_INTERFACE",
  32   "HTTP_ACCEPT",
  33   "HTTP_ACCEPT_ENCODING",
  34   "HTTP_ACCEPT_LANGUAGE",
  35   "HTTP_CACHE_CONTROL",
  36   "HTTP_COOKIE",
  37   "HTTP_HOST",
  38   "HTTP_NEGOTIATE",
  39   "HTTP_PRAGMA",
  40   "HTTP_USER_AGENT",
  41   "PATH_INFO",
  42   "PATH_TRANSLATED",
  43   "QUERY_STRING",
  44   "REMOTE_ADDR",
  45   "REMOTE_HOST",
  46   "REMOTE_USER",
  47   "REMOTE_IDENT",
  48   "REQUEST_METHOD",
  49   "SCRIPT_FILENAME",
  50   "SCRIPT_NAME",
  51   "SCRIPT_URI",
  52   "SCRIPT_URL",
  53   "SERVER_ADMIN",
  54   "SERVER_NAME",
  55   "SERVER_PORT",
  56   "SERVER_PROTOCOL",
  57   "SERVER_SOFTWARE",
  58   0
  59 };
  60 const int nenvok= sizeof(envok)/sizeof(envok[0]);
  61
  62 int debugmode= 0;
  63
  64 static void outerror(void) {
  65   perror("stdout");
  66   exit(debugmode ? 0 : -1);
  67 }
  68
  69 void syserror(const char *m) {
  70   if (printf("Content-Type: text/plain\n\n"
  71              "ucgi: system call error:\n"
  72              "%s: %s\n",
  73              m,strerror(errno))==EOF || fflush(stdout)) outerror();
  74   exit(0);
  75 }
  76
  77 void error(const char *m) {
  78   if (printf("Content-Type: text/plain\n\n"
  79              "ucgi: error:\n"
  80              "%s\n",
  81              m)==EOF || fflush(stdout)) outerror();
  82   exit(0);
  83 }
  84
  85 void *xmalloc(size_t sz) {
  86   void *r;
  87
  88   r= malloc(sz);
  89   if (!r) syserror("malloc failed");
  90   return r;
  91 }
  92
  93 void xsetenv(const char *en, const char *ev, int overwrite) {
  94   if (setenv(en,ev,overwrite)) syserror("setenv");
  95 }