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authorRob Landley <rob@landley.net>2013-12-23 06:49:38 -0600
committerRob Landley <rob@landley.net>2013-12-23 06:49:38 -0600
commitafba5b8efdf1bac2c02ca787840a2be053c800f7 (patch)
tree1af5b850e90663fb3be71597d02cd525bf5be4e8 /toys/other/login.c
parent5a73f3992d75dd4c7beefae2fa8a843d14372b19 (diff)
downloadtoybox-afba5b8efdf1bac2c02ca787840a2be053c800f7.tar.gz
Fix some issues raised (albeit indirectly) by Isaac Dunham.
POLL_IN defined as a constant by some libc. Factor out login.c's change_identity() to xwrap.c as xsetuser(). Replace xsetuid() with xsetuser() Put a space between argument globals and non-argument globals. TT starts zeroed, don't need to re-zero entries in it. STDIN_FILENO has been 0 since 1969, even DOS copied that. Just say 0. Added an xchroot() using xchdir() to lib/xwrap.c. Remove endgrent() call until somebody can explain why it was there.
Diffstat (limited to 'toys/other/login.c')
-rw-r--r--toys/other/login.c12
1 files changed, 2 insertions, 10 deletions
diff --git a/toys/other/login.c b/toys/other/login.c
index 54190d0f..100c665a 100644
--- a/toys/other/login.c
+++ b/toys/other/login.c
@@ -14,6 +14,7 @@ config LOGIN
usage: login [-p] [-h host] [[-f] username]
Establish a new session with the system.
+
-p Preserve environment
-h The name of the remote host for this login
-f Do not perform authentication
@@ -109,15 +110,6 @@ void handle_motd(void)
fflush(stdout);
}
-int change_identity(const struct passwd *pwd)
-{
- if (initgroups(pwd->pw_name,pwd->pw_gid)) return 1;
- if (setgid(pwd->pw_uid)) return 1;
- if (setuid(pwd->pw_uid)) return 1;
-
- return 0;
-}
-
void spawn_shell(const char *shell)
{
const char * exec_name = strrchr(shell,'/');
@@ -214,7 +206,7 @@ query_pass:
if (pwd->pw_uid) handle_nologin();
- if (change_identity(pwd)) error_exit("Failed to change identity");
+ xsetuser(pwd);
setup_environment(pwd, !(toys.optflags & FLAG_p));