Rename www-cgi to ucgi (in nearly all places)

[userv-utils.git] / www-cgi / ucgi.c

diff --git a/www-cgi/ucgi.c b/www-cgi/ucgi.c
deleted file mode 100644 (file)
index fc9888b..0000000
--- a/www-cgi/ucgi.c
+++ /dev/null
@@ -1,164 +0,0 @@
-/*
- * Usage: as CGI script
- */
-/*
- * Copyright 1996-2013,2016 Ian Jackson <ijackson@chiark.greenend.org.uk>
- * Copyright 1998 David Damerell <damerell@chiark.greenend.org.uk>
- * Copyright 1999,2003
- *    Chancellor Masters and Scholars of the University of Cambridge
- * Copyright 2010 Tony Finch <fanf@dotat.at>
- * Copyright 2013,2016 Mark Wooding <mdw@distorted.org.uk>
- *
- * This is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with userv-utils; if not, see http://www.gnu.org/licenses/.
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <ctype.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-
-#include "ucgi.h"
-
-static const char *const default_envok[] = {
-  "AUTH_TYPE",
-  "CONTENT_TYPE",
-  "CONTENT_LENGTH",
-  "DOCUMENT_ROOT",
-  "GATEWAY_INTERFACE",
-  "HTTP_*",
-  "HTTPS",
-  "PATH_INFO",
-  "PATH_TRANSLATED",
-  "QUERY_STRING",
-  "REDIRECT_*",
-  "REMOTE_*",
-  "REQUEST_METHOD",
-  "REQUEST_URI",
-  "SCRIPT_*",
-  "SERVER_*",
-  "SSL_*",
-  0
-};
-
-struct buildargs {
-  const char **v;
-  int n, max;
-};
-
-static void addarg(struct buildargs *args, const char *a) {
-  if (args->n > args->max) error("too many arguments", 500);
-  args->v[args->n++]= a;
-}
-
-static void add_userv_var(const char *fulln,
-                         const char *en, const char *ev, void *p) {
-  struct buildargs *args= p;
-  size_t l;
-  char *a;
-
-  l= strlen(ev);
-  if (l > MAX_ENVVAR_VALUE) error("environment variable too long", 500);
-  a= xmalloc(strlen(en)+l+6);
-  sprintf(a,"-DE_%s=%s",en,ev);
-  addarg(args, a);
-}
-
-int main(int argc, const char **argv) {
-  char *username;
-  const char *slash2, *pathi, *ev, *av;
-  const char *const *envok = 0;
-  size_t usernamelen, l;
-  struct buildargs args;
-  pid_t child, rchild;
-  int status;
-
-  l= strlen(argv[0]);
-  if (l>6 && !strcmp(argv[0]+l-6,"-debug")) debugmode= 1;
-
-  if (debugmode) {
-    if (fputs("Content-Type: text/plain\n\n",stdout)==EOF || fflush(stdout))
-      syserror("write stdout");
-    if (dup2(1,2)<0) { perror("dup stdout to stderr"); exit(-1); }
-    D( printf(";;; UCGI\n"); )
-  }
-  
-  if (argc > MAX_ARGS) error("too many arguments", 500);
-
-  ev= getenv("UCGI_ENV_FILTER");
-  if (ev)
-    envok= load_filters(LOADF_MUST, ev, LF_END);
-  else
-    envok= load_filters(0, "/etc/userv/ucgi.env-filter", LF_END);
-
-  pathi= getenv("PATH_INFO");
-  if (!pathi) error("PATH_INFO not found", 500);
-  D( if (debugmode) {
-       printf(";; find user name...\n"
-             ";;   initial PATH_INFO = `%s'\n",
-             pathi);
-  } )
-  if (pathi[0] != '/' || pathi[1] != '~')
-    error("PATH_INFO must start with /~", 400);
-  slash2= strchr(pathi+2,'/');
-  if (!slash2) error("PATH_INFO must have more than one /", 400);
-  usernamelen= slash2-(pathi+2);
-  if (usernamelen > MAX_USERNAME_LEN) error("PATH_INFO username too long", 400);
-  username= xmalloc(usernamelen+1);
-  memcpy(username,pathi+2,usernamelen); username[usernamelen]= 0;
-  D( if (debugmode)
-       printf(";;   user = `%s'; tail = `%s'\n", username, slash2); )
-  if (!isalpha(username[0]))
-    error("username 1st character is not alphabetic", 400);
-  xsetenv("PATH_INFO",slash2,1);
-
-  args.n= 0; args.max= argc + MAX_ENVVARS + 10;
-  args.v= xmalloc(args.max * sizeof(*args.v));
-  
-  addarg(&args, "userv");
-  if (debugmode) addarg(&args, "-DDEBUG=1");
-
-  filter_environment(FILTF_WILDCARD, "", envok, default_envok,
-                    add_userv_var, &args);
-
-  addarg(&args, username);
-  addarg(&args, "www-cgi");
-  while ((av= (*++argv))) addarg(&args, av);
-  addarg(&args, 0);
-
-  if (debugmode) {
-    D( fflush(stdout); )
-    child= fork(); if (child==-1) syserror("fork");
-    if (child) {
-      rchild= waitpid(child,&status,0);
-      if (rchild==-1) syserror("waitpid");
-      printf("\nexit status %d %d\n",(status>>8)&0x0ff,status&0x0ff);
-      exit(0);
-    }
-  }
-      
-  D( if (debugmode) {
-       int i;
-
-       printf(";; final command line...\n");
-       for (i = 0; args.v[i]; i++)
-        printf(";;   %s\n", args.v[i]);
-       fflush(stdout);
-  } )
-
-  execvp("userv",(char*const*)args.v);
-  syserror("exec userv");
-  return -1;
-}