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authorQuentin Rameau <quinq@fifth.space>2016-09-07 13:02:42 +0200
committerMarkus Teich <markus.teich@stusta.mhn.de>2016-09-07 13:10:25 +0200
commit04143fd68dbc656905714eff5c208fadb3464e25 (patch)
treefb712237b8079b4a40c1e742935fad3dc519b98a /slock.c
parent9698224090ff2989659717815bfa076d5d436a70 (diff)
Unify how we check passwords between different OSes
Diffstat (limited to 'slock.c')
-rw-r--r--slock.c47
1 files changed, 13 insertions, 34 deletions
diff --git a/slock.c b/slock.c
index 62a9841..da4b099 100644
--- a/slock.c
+++ b/slock.c
@@ -18,11 +18,6 @@
#include <X11/Xlib.h>
#include <X11/Xutil.h>
-#if HAVE_BSD_AUTH
-#include <login_cap.h>
-#include <bsd_auth.h>
-#endif
-
#include "arg.h"
#include "util.h"
@@ -88,7 +83,6 @@ dontkillme(void)
}
#endif
-#ifndef HAVE_BSD_AUTH
/* only run as root */
static const char *
getpw(void)
@@ -96,6 +90,7 @@ getpw(void)
const char *rval;
struct passwd *pw;
+ /* Check if the current user has a password entry */
errno = 0;
if (!(pw = getpwuid(getuid()))) {
if (errno)
@@ -109,10 +104,20 @@ getpw(void)
if (rval[0] == 'x' && rval[1] == '\0') {
struct spwd *sp;
if (!(sp = getspnam(getenv("USER"))))
- die("slock: cannot retrieve shadow entry (make sure to suid or sgid slock)\n");
+ die("slock: getspnam: cannot retrieve shadow entry (make sure to suid or sgid slock)\n");
rval = sp->sp_pwdp;
}
-#endif
+#else
+ if (rval[0] == '*' && rval[1] == '\0') {
+#ifdef __OpenBSD__
+ if (!(pw = getpwnam_shadow(getenv("USER"))))
+ die("slock: getpwnam_shadow: cannot retrieve shadow entry (make sure to suid or sgid slock)\n");
+ rval = pw->pw_passwd;
+#else
+ die("slock: getpwuid: cannot retrieve shadow entry (make sure to suid or sgid slock)\n");
+#endif /* __OpenBSD__ */
+ }
+#endif /* HAVE_SHADOW_H */
/* drop privileges */
if (geteuid() == 0 &&
@@ -120,14 +125,9 @@ getpw(void)
die("slock: cannot drop privileges\n");
return rval;
}
-#endif
static void
-#ifdef HAVE_BSD_AUTH
-readpw(Display *dpy)
-#else
readpw(Display *dpy, const char *pws)
-#endif
{
char buf[32], passwd[256], *encrypted;
int num, screen, running, failure;
@@ -163,15 +163,11 @@ readpw(Display *dpy, const char *pws)
switch (ksym) {
case XK_Return:
passwd[len] = 0;
-#ifdef HAVE_BSD_AUTH
- running = !auth_userokay(getlogin(), NULL, "auth-slock", passwd);
-#else
errno = 0;
if (!(encrypted = crypt(passwd, pws)))
fprintf(stderr, "slock: crypt: %s\n", strerror(errno));
else
running = !!strcmp(encrypted, pws);
-#endif
if (running) {
XBell(dpy, 100);
failure = True;
@@ -320,9 +316,7 @@ usage(void)
int
main(int argc, char **argv) {
-#ifndef HAVE_BSD_AUTH
const char *pws;
-#endif
Display *dpy;
int s, nlocks;
@@ -338,20 +332,9 @@ main(int argc, char **argv) {
dontkillme();
#endif
- /* Check if the current user has a password entry */
- errno = 0;
- if (!getpwuid(getuid())) {
- if (errno == 0)
- die("slock: no password entry for current user\n");
- else
- die("slock: getpwuid: %s\n", strerror(errno));
- }
-
-#ifndef HAVE_BSD_AUTH
pws = getpw();
if (strlen(pws) < 2)
die("slock: failed to get user password hash.\n");
-#endif
if (!(dpy = XOpenDisplay(NULL)))
die("slock: cannot open display\n");
@@ -396,11 +379,7 @@ main(int argc, char **argv) {
}
/* everything is now blank. Wait for the correct password */
-#ifdef HAVE_BSD_AUTH
- readpw(dpy);
-#else
readpw(dpy, pws);
-#endif
/* password ok, unlock everything and quit */
cleanup(dpy);