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); }
51 if (argc
> MAX_ARGS
) error("too many arguments");
53 pathi
= getenv("PATH_INFO");
54 if (!pathi
) error("PATH_INFO not found");
55 if (pathi
[0] != '/' || pathi
[1] != '~') error("PATH_INFO must start with /~");
56 slash2
= strchr(pathi
+2,'/'); if (!slash2
) error("PATH_INFO must have more than one /");
57 usernamelen
= slash2
-(pathi
+2);
58 if (usernamelen
> MAX_USERNAME_LEN
) error("PATH_INFO username too long");
59 username
= xmalloc(usernamelen
+1);
60 memcpy(username
,pathi
+2,usernamelen
); username
[usernamelen
]= 0;
61 if (!isalpha(username
[0])) error("username 1st character is not alphabetic");
62 xsetenv("PATH_INFO",slash2
,1);
64 arguments
= xmalloc(sizeof(const char*)*(nenvok
+argc
+10));
67 arguments
[nargs
++]= "userv";
68 if (debugmode
) arguments
[nargs
++]= "-DDEBUG=1";
70 for (ep
= envok
; (en
= *ep
); ep
++) {
71 ev
= getenv(en
); if (!ev
) continue;
72 l
= strlen(ev
); if (l
> MAX_ENVVAR_VALUE
) error("environment variable too long");
73 defarg
= xmalloc(strlen(en
)+l
+6);
74 sprintf(defarg
,"-DE_%s=%s",en
,ev
);
75 arguments
[nargs
++]= defarg
;
78 arguments
[nargs
++]= username
;
79 arguments
[nargs
++]= "www-cgi";
80 while ((av
= (*++argv
))) arguments
[nargs
++]= av
;
81 arguments
[nargs
++]= 0;
84 child
= fork(); if (child
==-1) syserror("fork");
86 rchild
= waitpid(child
,&status
,0);
87 if (rchild
==-1) syserror("waitpid");
88 printf("\nexit status %d %d\n",(status
>>8)&0x0ff,status
&0x0ff);
93 execvp("userv",(char*const*)arguments
);
94 syserror("exec userv");