176 lines
4.1 KiB
C
176 lines
4.1 KiB
C
/* httpd.c
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*
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* httpd A Server implementing the HTTP protocol.
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*
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* usage: tcpd http httpd &
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*
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* 02/17/1996 Michael Temari <Michael@TemWare.Com>
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* 07/07/1996 Initial Release Michael Temari <Michael@TemWare.Com>
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* 12/29/2002 Michael Temari <Michael@TemWare.Com>
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* 07/04/2003 Al Woodhull <asw@woodhull.com>
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*
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*/
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#include <stdlib.h>
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#include <sys/types.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include "http.h"
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#include "utility.h"
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#include "net.h"
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#include "config.h"
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FILE *stdlog = (FILE *)NULL;
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FILE *dbglog = (FILE *)NULL;
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char umsg[80];
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_PROTOTYPE(int main, (int argc, char *argv[]));
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struct http_request request;
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struct http_reply reply;
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int main(argc, argv)
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int argc;
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char *argv[];
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{
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char *prog;
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int opt_t;
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char *cfg = (char *)NULL;
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struct passwd *pwd;
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int s;
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strcpy(umsg, "Usage: ");
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strcat(umsg, argv[0]);
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strcat(umsg, " [-t|v] [config_file]\n");
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/* parse program name */
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prog = strrchr(*argv, '/');
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if(prog == (char *)NULL)
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prog = *argv;
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else
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prog++;
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argv++;
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argc--;
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/* Any options */
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if(argc)
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if(argv[0][0] == '-') {
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switch (argv[0][1]) {
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case 't' : opt_t = 1;
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argv++;
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argc--;
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break;
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case 'v' : fprintf(stderr, VERSION"\n");
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exit(EXIT_SUCCESS);
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break;
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default : fprintf(stderr, VERSION"\n");
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fprintf(stderr, umsg);
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exit(EXIT_FAILURE);
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}
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}
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/* Did they specify an alternate configuration file? */
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if(argc) {
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cfg = *argv++;
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argc--;
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}
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/* Read the configuration settings */
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if(readconfig(cfg, opt_t)) {
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fprintf(stderr, "httpd: Error reading configuration file.\n");
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return(-1);
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}
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/* Option t is to test configuration only */
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if(opt_t)
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return(0);
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/* Open log file for append if it exists */
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if(LogFile != NULL)
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if((stdlog = fopen(LogFile, "r")) != (FILE *)NULL) {
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fclose(stdlog);
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stdlog = fopen(LogFile, "a");
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}
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/* Open debug log file for append if it exists */
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if(DbgFile != NULL)
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if((dbglog = fopen(DbgFile, "r")) != (FILE *)NULL) {
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fclose(dbglog);
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dbglog = fopen(DbgFile, "a");
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}
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#if 0
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/* Get some network information */
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GetNetInfo();
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#endif
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/* If user defined then prepare to secure as user given */
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if(User != NULL)
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if((pwd = getpwnam(User)) == (struct passwd *)NULL) {
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fprintf(stderr, "httpd: unable to find user %s\n", User);
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return(-1);
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}
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/* If Chroot defined then secure even more by doing a chroot */
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if(Chroot != NULL) {
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if(chroot(Chroot)) {
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fprintf(stderr, "httpd: unable to chroot\n");
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return(-1);
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}
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if(chdir("/")) {
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fprintf(stderr, "httpd: unable to chroot\n");
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return(-1);
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}
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}
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/* If user defined then secure as user given */
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if(User != NULL)
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if(setgid(pwd->pw_gid) || setuid(pwd->pw_uid)) {
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fprintf(stderr, "httpd: unable to set user\n");
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return(-1);
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}
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#if DAEMON
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/* Standalone? */
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if (strncmp(prog, "in.", 3) != 0) {
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/* Does not start with "in.", so not started from inetd/tcpd. */
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/* XXX - Port name/number should be a config file option. */
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daemonloop("http");
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}
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#endif
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/* Get some network information */
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GetNetInfo();
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/* log a connection */
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if(dbglog != (FILE *)NULL) {
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fprintf(dbglog, "CONNECT: %d %s %s\n", getpid(),
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rmthostname, logdate((time_t *)NULL));
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fflush(dbglog);
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}
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/* loop getting, processing and replying to requests */
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while(!(s = getrequest(&request))) {
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if(processrequest(&request, &reply)) break;
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if(stdlog != (FILE *)NULL) {
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fprintf(stdlog, "%s %s %d %d %s\n",
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logdate((time_t *)NULL), rmthostname,
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request.method, reply.status, request.url);
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fflush(stdlog);
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}
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if(sendreply(&reply, &request)) break;
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if(!reply.keepopen) break;
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}
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if(s == 1 && stdlog != (FILE *)NULL) {
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fprintf(stdlog, "%s %s %d %d %s\n",
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logdate((time_t *)NULL), rmthostname,
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request.method, 999, request.url);
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fflush(stdlog);
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}
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return(0);
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}
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