minix/commands/httpd0995/httpd.c
2006-06-19 14:55:09 +00:00

175 lines
4.1 KiB
C

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