5 * Copyright (C) 1998-1999,2003 Ian Jackson
7 * This is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with userv-utils; if not, write to the Free Software
19 * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
28 #include <sys/types.h>
33 int main(int argc, const char **argv) {
34 char *defarg, *username;
35 const char *slash2, *pathi, *ev, *en, *av;
36 const char *const *ep;
37 const char **arguments;
38 size_t usernamelen, l;
43 if (l>6 && !strcmp(argv[0]+l-6,"-debug")) debugmode= 1;
46 if (fputs("Content-Type: text/plain\n\n",stdout)==EOF || fflush(stdout))
47 syserror("write stdout");
48 if (dup2(1,2)<0) { perror("dup stdout to stderr"); exit(-1); }
49 D( printf(";;; UCGI\n"); )
52 if (argc > MAX_ARGS) error("too many arguments");
54 pathi= getenv("PATH_INFO");
55 if (!pathi) error("PATH_INFO not found");
57 printf(";; find user name...\n"
58 ";; initial PATH_INFO = `%s'\n",
61 if (pathi[0] != '/' || pathi[1] != '~') error("PATH_INFO must start with /~");
62 slash2= strchr(pathi+2,'/'); if (!slash2) error("PATH_INFO must have more than one /");
63 usernamelen= slash2-(pathi+2);
64 if (usernamelen > MAX_USERNAME_LEN) error("PATH_INFO username too long");
65 username= xmalloc(usernamelen+1);
66 memcpy(username,pathi+2,usernamelen); username[usernamelen]= 0;
68 printf(";; user = `%s'; tail = `%s'\n", username, slash2); )
69 if (!isalpha(username[0])) error("username 1st character is not alphabetic");
70 xsetenv("PATH_INFO",slash2,1);
72 arguments= xmalloc(sizeof(const char*)*(nenvok+argc+10));
75 arguments[nargs++]= "userv";
76 if (debugmode) arguments[nargs++]= "-DDEBUG=1";
78 for (ep= envok; (en= *ep); ep++) {
79 ev= getenv(en); if (!ev) continue;
80 l= strlen(ev); if (l > MAX_ENVVAR_VALUE) error("environment variable too long");
81 defarg= xmalloc(strlen(en)+l+6);
82 sprintf(defarg,"-DE_%s=%s",en,ev);
83 arguments[nargs++]= defarg;
86 arguments[nargs++]= username;
87 arguments[nargs++]= "www-cgi";
88 while ((av= (*++argv))) arguments[nargs++]= av;
89 arguments[nargs++]= 0;
93 child= fork(); if (child==-1) syserror("fork");
95 rchild= waitpid(child,&status,0);
96 if (rchild==-1) syserror("waitpid");
97 printf("\nexit status %d %d\n",(status>>8)&0x0ff,status&0x0ff);
105 printf(";; final command line...\n");
106 for (i = 0; arguments[i]; i++)
107 printf(";; %s\n", arguments[i]);
111 execvp("userv",(char*const*)arguments);
112 syserror("exec userv");