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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 | * |
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18 | * $Id: ucgicommon.c,v 1.4 2001/03/17 15:32:58 ian Exp $ |
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19 | */ |
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20 | |
21 | #include <stdio.h> |
22 | #include <string.h> |
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23 | #include <errno.h> |
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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", |
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36 | "HTTP_COOKIE", |
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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 | } |