Do not set SHELL to utmp ever

SHELL must be set to the SHELL of the user, but it was possible set
it to utmp.
master
Roberto E. Vargas Caballero 10 years ago
parent 86633ada91
commit f9fb620914
  1. 20
      st.c

20
st.c

@ -1146,7 +1146,7 @@ die(const char *errstr, ...) {
void
execsh(void) {
char **args, *sh;
char **args, *sh, *prog;
const struct passwd *pw;
char buf[sizeof(long) * 8 + 1];
@ -1158,13 +1158,15 @@ execsh(void) {
die("who are you?\n");
}
if (utmp)
sh = utmp;
else if (pw->pw_shell[0])
sh = pw->pw_shell;
sh = (pw->pw_shell[0]) ? pw->pw_shell : shell;
if(opt_cmd)
prog = opt_cmd[0];
else if(utmp)
prog = utmp;
else
sh = shell;
args = (opt_cmd) ? opt_cmd : (char *[]){sh, NULL};
prog = sh;
args = (opt_cmd) ? opt_cmd : (char *[]) {prog, NULL};
snprintf(buf, sizeof(buf), "%lu", xw.win);
unsetenv("COLUMNS");
@ -1172,7 +1174,7 @@ execsh(void) {
unsetenv("TERMCAP");
setenv("LOGNAME", pw->pw_name, 1);
setenv("USER", pw->pw_name, 1);
setenv("SHELL", args[0], 1);
setenv("SHELL", sh, 1);
setenv("HOME", pw->pw_dir, 1);
setenv("TERM", termname, 1);
setenv("WINDOWID", buf, 1);
@ -1184,7 +1186,7 @@ execsh(void) {
signal(SIGTERM, SIG_DFL);
signal(SIGALRM, SIG_DFL);
execvp(args[0], args);
execvp(prog, args);
exit(EXIT_FAILURE);
}

Loading…
Cancel
Save