2 * Copyright 1996-2013 Ian Jackson <ijackson@chiark.greenend.org.uk>
3 * Copyright 1998 David Damerell <damerell@chiark.greenend.org.uk>
5 * Chancellor Masters and Scholars of the University of Cambridge
6 * Copyright 2010 Tony Finch <fanf@dotat.at>
8 * This is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 3 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with userv-utils; if not, see http://www.gnu.org/licenses/.
28 const char *const envok[]= {
35 "HTTP_ACCEPT_CHARSET",
36 "HTTP_ACCEPT_ENCODING",
37 "HTTP_ACCEPT_LANGUAGE",
40 "HTTP_CONTENT_ENCODING",
50 "HTTP_X_FORWARDED_FOR",
74 const int nenvok= sizeof(envok)/sizeof(envok[0]);
78 static void outerror(void) {
80 exit(debugmode ? 0 : -1);
83 void syserror(const char *m) {
84 if (printf("Content-Type: text/plain\n\n"
85 "ucgi: system call error:\n"
87 m,strerror(errno))==EOF || fflush(stdout)) outerror();
91 void error(const char *m) {
92 if (printf("Content-Type: text/plain\n\n"
95 m)==EOF || fflush(stdout)) outerror();
99 void *xmalloc(size_t sz) {
103 if (!r) syserror("malloc failed");
107 void xsetenv(const char *en, const char *ev, int overwrite) {
108 if (setenv(en,ev,overwrite)) syserror("setenv");