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nasty hack hides password on commandline

This commit is contained in:
Bjorn Andersson 2007-07-12 13:36:24 +00:00 committed by Erik Ekman
parent 13df3ca856
commit 49ad0dbc86
3 changed files with 20 additions and 19 deletions
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10
src/common.c
View File

@ -71,13 +71,11 @@ close_dns(int fd)
void
do_chroot(char *newroot)
{
if (newroot) {
if (chroot(newroot) != 0 || chdir("/") != 0)
err(1, "%s", newroot);
if (chroot(newroot) != 0 || chdir("/") != 0)
err(1, "%s", newroot);
seteuid(geteuid());
setuid(getuid());
}
seteuid(geteuid());
setuid(getuid());
}
void

26
src/iodine.c
View File

@ -681,6 +681,9 @@ main(int argc, char **argv)
case 'P':
strncpy(password, optarg, 32);
password[32] = 0;
/* XXX: find better way of cleaning up ps(1) */
memset(optarg, 0, strlen(optarg));
break;
default:
usage();
@ -689,7 +692,7 @@ main(int argc, char **argv)
}
if (geteuid() != 0) {
printf("Run as root and you'll be happy.\n");
warnx("Run as root and you'll be happy.\n");
usage();
}
@ -713,14 +716,13 @@ main(int argc, char **argv)
set_nameserver(nameserv_addr);
if (strlen(topdomain) > 128 || topdomain[0] == '.') {
printf("Use a topdomain max 128 chars long. Do not start it with a dot.\n");
warnx("Use a topdomain max 128 chars long. Do not start it with a dot.\n");
usage();
}
if(username) {
pw = getpwnam(username);
if (!pw) {
printf("User %s does not exist!\n", username);
if (username != NULL) {
if ((pw = getpwnam(username)) == NULL) {
warnx("User %s does not exist!\n", username);
usage();
}
}
@ -739,20 +741,20 @@ main(int argc, char **argv)
if(handshake(dns_fd))
goto cleanup2;
printf("Sending queries for %s to %s\n", topdomain, nameserv_addr);
printf("Sending queries for %s to %s\n", argv[1], argv[0]);
do_chroot(newroot);
if (newroot != NULL)
do_chroot(newroot);
if (username) {
if (username != NULL) {
if (setgid(pw->pw_gid) < 0 || setuid(pw->pw_uid) < 0) {
printf("Could not switch to user %s!\n", username);
warnx("Could not switch to user %s!\n", username);
usage();
}
}
if (!foreground) {
if (foreground == 0)
do_detach();
}
tunnel(tun_fd, dns_fd);

3
src/iodined.c
View File

@ -573,7 +573,8 @@ main(int argc, char **argv)
printf("Listening to dns for domain %s\n", argv[1]);
do_chroot(newroot);
if (newroot != NULL)
do_chroot(newroot);
signal(SIGINT, sigint);
if (username) {