--- /dev/null
+/*
+ * Copyright (c) 1995, the EUROPAGATE consortium (see below).
+ *
+ * The EUROPAGATE consortium members are:
+ *
+ * University College Dublin
+ * Danmarks Teknologiske Videnscenter
+ * An Chomhairle Leabharlanna
+ * Consejo Superior de Investigaciones Cientificas
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation, in whole or in part, for any purpose, is hereby granted,
+ * provided that:
+ *
+ * 1. This copyright and permission notice appear in all copies of the
+ * software and its documentation. Notices of copyright or attribution
+ * which appear at the beginning of any file must remain unchanged.
+ *
+ * 2. The names of EUROPAGATE or the project partners may not be used to
+ * endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * 3. Users of this software (implementors and gateway operators) agree to
+ * inform the EUROPAGATE consortium of their use of the software. This
+ * information will be used to evaluate the EUROPAGATE project and the
+ * software, and to plan further developments. The consortium may use
+ * the information in later publications.
+ *
+ * 4. Users of this software agree to make their best efforts, when
+ * documenting their use of the software, to acknowledge the EUROPAGATE
+ * consortium, and the role played by the software in their work.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS, IMPLIED, OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
+ * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+ * IN NO EVENT SHALL THE EUROPAGATE CONSORTIUM OR ITS MEMBERS BE LIABLE
+ * FOR ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF
+ * ANY KIND, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
+ * OR PROFITS, WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND
+ * ON ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
+ * USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * $Log: wcgi.c,v $
+ * Revision 1.1 1995/10/20 11:49:25 adam
+ * First version of www gateway.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+
+#define DEADSTRING "Your database server has terminated. To reactivate \
+the server, please reload the server's 'front page'."
+
+#include "wproto.h"
+
+#define CGIDIR "/usr/local/etc/httpd/cgi-bin"
+
+static char *prog = "cgi";
+
+static char serverp[256] = {'\0'};
+
+static void fatal(char *p)
+{
+ printf("Content-type: text/html\n\n<HTML><HEAD><TITLE>Server Failure</TITLE></HEAD>\n");
+ printf("<BODY>%s</BODY>\n", p);
+ if (*serverp)
+ unlink(serverp);
+ exit(0);
+}
+
+static int spawn(char *sprog)
+{
+ int r;
+ char path[256];
+
+ sprintf(path, "%s/%s", CGIDIR, sprog);
+ switch(r = fork())
+ {
+ case -1:
+ gw_log (GW_LOG_FATAL|GW_LOG_ERRNO, prog, "fork");
+ exit(1);
+ case 0:
+ close (0);
+ close (1);
+ execl (path, sprog, 0);
+ gw_log (GW_LOG_FATAL|GW_LOG_ERRNO, prog, "execl %s", path);
+ exit(0);
+ default:
+ return r;
+ }
+}
+
+
+/*
+ * NOTE: In the (perhaps odd) terminology used within this software,
+ * the 'server' is the present program, which is executed by the httpd
+ * server. The 'client' is the process running outside.
+ * Protocol is long(len)<serverfifo>\0<extrapath>\0<envvars>\0<INFO>\0
+ */
+int main()
+{
+ char clientp[256], tmp[256], *path_info, *p, *operation, *t;
+ char combuf[COMBUF];
+ int linein = -1, lineout, data, childpid;
+
+ gw_log_init ("egw");
+ gw_log_file (GW_LOG_ALL, "/usr/local/etc/httpd/logs/egwcgi_log");
+ gw_log_level (GW_LOG_ALL);
+ gw_log (GW_LOG_STAT, prog, "Europagate www cgi server");
+
+ sprintf(tmp, "%s/%s", FIFOROOT, FIFODIR);
+ if (access(tmp, R_OK|W_OK) < 0 && mkdir(tmp, 0777) < 0)
+ {
+ gw_log (GW_LOG_FATAL|GW_LOG_ERRNO, prog, "Failed to create %s", tmp);
+ fatal("Internal error in server.");
+ }
+ sprintf(serverp, "%s/srv%d", tmp, getpid());
+ if (access(serverp, R_OK|W_OK) == 0)
+ {
+ if (unlink(serverp) < 0)
+ {
+ gw_log (GW_LOG_FATAL|GW_LOG_ERRNO, prog,
+ "Failed to delete stale fifo.");
+ fatal("Internal error in server.");
+ }
+ else
+ gw_log (GW_LOG_WARN, prog, "Removed stale server fifo.");
+ }
+ if (mkfifo(serverp, 0666 | S_IFIFO) < 0)
+ {
+ gw_log (GW_LOG_FATAL|GW_LOG_ERRNO, prog, "mkfifo(%s)", serverp);
+ fatal("Internal error in server.");
+ }
+ if (!(path_info = getenv("PATH_INFO")))
+ {
+ gw_log (GW_LOG_FATAL, prog, "Must set PATH_INFO.");
+ fatal("Internal error in server.");
+ }
+ operation = ++path_info;
+ while (*path_info && *path_info != '/')
+ path_info++;
+ if (*path_info)
+ *(path_info++) = '\0';
+ if ((childpid = atoi(operation)) <= 0)
+ {
+ childpid = spawn(operation);
+ /* synchronize with client. */
+ gw_log (GW_LOG_DEBUG, prog, "Synchronizing with client.");
+ if ((linein = open(serverp, O_RDONLY)) < 0)
+ {
+ gw_log (GW_LOG_FATAL|GW_LOG_ERRNO, prog, "open server %s", serverp);
+ fatal("Internal error in server.");
+ }
+ if (read(linein, combuf, 2) < 2 || strcmp(combuf, "OK"))
+ {
+ gw_log (GW_LOG_FATAL, prog, "Failed to synchronize with client.");
+ fatal("Internal error in server");
+ }
+ gw_log (GW_LOG_DEBUG, prog, "Synchronized.");
+ }
+ sprintf(clientp, "%s/clt%d", tmp, childpid);
+ gw_log (GW_LOG_DEBUG, prog, "Opening %s", clientp);
+ if ((lineout = open(clientp, O_WRONLY)) < 0)
+ {
+ gw_log (GW_LOG_FATAL|GW_LOG_ERRNO, prog, "%s", clientp);
+ fatal(DEADSTRING);
+ }
+ gw_log (GW_LOG_DEBUG, prog, "Decoding user data.");
+ p = combuf + sizeof(data);
+ strcpy(p, serverp);
+ p += strlen(p) + 1;
+ strcpy(p, path_info);
+ p += strlen(p) + 1;
+ *(p++) = '\0'; /* no envvars tranferred at present */
+ if ((t = getenv("CONTENT_LENGTH")) && (data = atoi(t)) > 0)
+ {
+ if (read(0, p, data) < data)
+ {
+ gw_log (GW_LOG_FATAL, prog, "Failed to read input.");
+ fatal("Internal error in server.");
+ }
+ }
+ p += data;
+ *(p++) = '\0';
+ data = (p - combuf);
+ memcpy(combuf, &data, sizeof(data));
+ gw_log (GW_LOG_DEBUG, prog, "Writing data.");
+ if (write(lineout, combuf, data) < data)
+ {
+ gw_log (GW_LOG_FATAL|GW_LOG_ERRNO, prog, "write");
+ fatal("Internal server error.");
+ }
+ if (linein < 0 && (linein = open(serverp, O_RDONLY)) < 0)
+ {
+ gw_log (GW_LOG_FATAL|GW_LOG_ERRNO, prog, "open server %s", serverp);
+ fatal("Internal error in server.");
+ }
+ gw_log (GW_LOG_DEBUG, prog, "Reading response.");
+ while ((data = read(linein, combuf, COMBUF)) > 0)
+ {
+ if (write(1, combuf, data) < data)
+ {
+ gw_log (GW_LOG_FATAL|GW_LOG_ERRNO, prog, "write");
+ fatal("Internal server error.");
+ }
+ }
+ if (data < 0)
+ {
+ gw_log (GW_LOG_FATAL|GW_LOG_ERRNO, prog, "read");
+ fatal("Internal server error.");
+ }
+ gw_log (GW_LOG_DEBUG, prog, "Cleaning up.");
+ close(linein);
+ unlink(serverp);
+ close(lineout);
+ return 0;
+}
projects / egate.git / blobdiff