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Implement -p for su(1)

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sin 2013-10-18 14:26:14 +01:00
parent 7e59506b4b
commit acb9ae197e
1 changed files with 12 additions and 6 deletions
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18
su.c
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@ -18,10 +18,11 @@ static void dologin(struct passwd *);
static void
usage(void)
{
eprintf("usage: %s [-l] [username]\n", argv0);
eprintf("usage: %s [-lp] [username]\n", argv0);
}
static int lflag = 0;
static int pflag = 0;
int
main(int argc, char **argv)
@ -37,6 +38,9 @@ main(int argc, char **argv)
case 'l':
lflag = 1;
break;
case 'p':
pflag = 1;
break;
default:
usage();
} ARGEND;
@ -100,11 +104,13 @@ main(int argc, char **argv)
dologin(pw);
} else {
newargv = (char *const[]){pw->pw_shell, NULL};
setenv("HOME", pw->pw_dir, 1);
setenv("SHELL", pw->pw_dir, 1);
if (strcmp(pw->pw_name, "root") != 0) {
setenv("USER", pw->pw_name, 1);
setenv("LOGNAME", pw->pw_name, 1);
if (!pflag) {
setenv("HOME", pw->pw_dir, 1);
setenv("SHELL", pw->pw_dir, 1);
if (strcmp(pw->pw_name, "root") != 0) {
setenv("USER", pw->pw_name, 1);
setenv("LOGNAME", pw->pw_name, 1);
}
}
execve(pw->pw_shell, newargv, environ);
}