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add priv dropping

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This commit is contained in:
Ron Pedde
2003-12-29 23:39:18 +00:00
parent 54a22bfee4
commit ad6a6b3d5e
8 changed files with 129 additions and 12 deletions
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38
src/main.c
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@@ -27,6 +27,7 @@
#include <fcntl.h>
#include <limits.h>
#include <pthread.h>
#include <pwd.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
@@ -379,6 +380,7 @@ int main(int argc, char *argv[]) {
int parseonly=0;
int foreground=0;
config.use_mdns=0;
struct passwd *pw=NULL;
#ifdef DEBUG
char *optval="d:c:mpf";
@@ -420,6 +422,13 @@ int main(int argc, char *argv[]) {
}
}
#ifdef DEBUG
if(!foreground) {
fprintf(stderr,"WARNING: Debug mode: not detaching\n");
foreground=1;
}
#endif
/* read the configfile, if specified, otherwise
* try defaults */
@@ -430,7 +439,24 @@ int main(int argc, char *argv[]) {
if((config.use_mdns) && (!parseonly)) {
fprintf(stderr,"Starting rendezvous daemon\n");
rend_init(&config.rend_pid,config.servername, config.port);
rend_init(&config.rend_pid,config.servername, config.port, config.runas);
}
/* drop privs */
if(getuid() == (uid_t)0) {
pw=getpwnam(config.runas);
if(pw) {
if(initgroups(config.runas,pw->pw_gid) != 0 ||
setgid(pw->pw_gid) != 0 ||
setuid(pw->pw_uid) != 0) {
fprintf(stderr,"Couldn't change to %s, gid=%d, uid=%d\n",
config.runas,pw->pw_gid, pw->pw_uid);
exit(EXIT_FAILURE);
}
} else {
fprintf(stderr,"Couldn't lookup user %s\n",config.runas);
exit(EXIT_FAILURE);
}
}
DPRINTF(ERR_DEBUG,"Initializing database\n");
@@ -488,17 +514,17 @@ int main(int argc, char *argv[]) {
sleep(10);
if(config.use_mdns) {
fprintf(stderr,"Killing rendezvous daemon\n");
if(foreground) fprintf(stderr,"Killing rendezvous daemon\n");
kill(config.rend_pid,SIGINT);
wait(&status);
}
fprintf(stderr,"Stopping webserver\n");
if(foreground) fprintf(stderr,"Stopping webserver\n");
ws_stop(server);
config_close();
fprintf(stderr,"Closing database\n");
if(foreground) fprintf(stderr,"Closing database\n");
db_deinit();
#ifdef DEBUG
@@ -506,7 +532,9 @@ int main(int argc, char *argv[]) {
err_leakcheck();
#endif
fprintf(stderr,"\nDone\n");
if(foreground) fprintf(stderr,"\nDone\n");
log_err(0,"Exiting");
return EXIT_SUCCESS;
}