---
arg.h | 65 +++++++++++++++++++++++++++++++++++++++++++++++++
slock.c | 85 +++++++++++++++++++++++++++++++++++++++++--------------------=
----
2 files changed, 119 insertions(+), 31 deletions(-)
create mode 100644 arg.h
diff --git a/arg.h b/arg.h
new file mode 100644
index 0000000..0b23c53
--- /dev/null
+++ b/arg.h
_AT_@ -0,0 +1,65 @@
+/*
+ * Copy me if you can.
+ * by 20h
+ */
+
+#ifndef ARG_H__
+#define ARG_H__
+
+extern char *argv0;
+
+/* use main(int argc, char *argv[]) */
+#define ARGBEGIN for (argv0 =3D *argv, argv++, argc--;\
+ argv[0] && argv[0][0] =3D=3D '-'\
+ && argv[0][1];\
+ argc--, argv++) {\
+ char argc_;\
+ char **argv_;\
+ int brk_;\
+ if (argv[0][1] =3D=3D '-' && argv[0][2] =3D=3D '\0') {\
+ argv++;\
+ argc--;\
+ break;\
+ }\
+ for (brk_ =3D 0, argv[0]++, argv_ =3D argv;\
+ argv[0][0] && !brk_;\
+ argv[0]++) {\
+ if (argv_ !=3D argv)\
+ break;\
+ argc_ =3D argv[0][0];\
+ switch (argc_)
+
+/* Handles obsolete -NUM syntax */
+#define ARGNUM case '0':\
+ case '1':\
+ case '2':\
+ case '3':\
+ case '4':\
+ case '5':\
+ case '6':\
+ case '7':\
+ case '8':\
+ case '9'
+
+#define ARGEND }\
+ }
+
+#define ARGC() argc_
+
+#define ARGNUMF() (brk_ =3D 1, estrtonum(argv[0], 0, INT_MAX))
+
+#define EARGF(x) ((argv[0][1] =3D=3D '\0' && argv[1] =3D=3D NULL)?\
+ ((x), abort(), (char *)0) :\
+ (brk_ =3D 1, (argv[0][1] !=3D '\0')?\
+ (&argv[0][1]) :\
+ (argc--, argv++, argv[0])))
+
+#define ARGF() ((argv[0][1] =3D=3D '\0' && argv[1] =3D=3D NULL)?\
+ (char *)0 :\
+ (brk_ =3D 1, (argv[0][1] !=3D '\0')?\
+ (&argv[0][1]) :\
+ (argc--, argv++, argv[0])))
+
+#define LNGARG() &argv[0][0]
+
+#endif
diff --git a/slock.c b/slock.c
index a00fbb9..210d5c8 100644
--- a/slock.c
+++ b/slock.c
_AT_@ -23,8 +23,11 @@
#include <bsd_auth.h>
#endif
=20
+#include "arg.h"
#include "util.h"
=20
+char *argv0;
+
enum {
INIT,
INPUT,
_AT_@ -54,7 +57,6 @@ die(const char *errstr, ...)
{
va_list ap;
=20
- fputs("slock: ", stderr);
va_start(ap, errstr);
vfprintf(stderr, errstr, ap);
va_end(ap);
_AT_@ -280,8 +282,7 @@ lockscreen(Display *dpy, int screen)
static void
usage(void)
{
- fprintf(stderr, "usage: slock [-v|POST_LOCK_CMD]\n");
- exit(1);
+ die("usage: slock [-v | cmd [arg ...]]\n");
}
=20
int
_AT_@ -290,64 +291,86 @@ main(int argc, char **argv) {
const char *pws;
#endif
Display *dpy;
- int screen;
+ int s, nlocks;
=20
- if ((argc >=3D 2) && !strcmp("-v", argv[1]))
- die("version %s, =C2=A9 2006-2016 slock engineers\n", VERSION);
-
- /* treat first argument starting with a '-' as option */
- if ((argc >=3D 2) && argv[1][0] =3D=3D '-')
+ ARGBEGIN {
+ case 'v':
+ fprintf(stderr, "slock-"VERSION"\n");
+ return 0;
+ default:
usage();
+ } ARGEND
=20
#ifdef __linux__
dontkillme();
#endif
=20
- if (!getpwuid(getuid()))
- die("no passwd entry for you\n");
+ /* Check if the current user has a password entry */
+ errno =3D 0;
+ if (!getpwuid(getuid())) {
+ if (errno =3D=3D 0)
+ die("slock: no password entry for current user\n");
+ else
+ die("slock: getpwuid: %s\n", strerror(errno));
+ }
=20
#ifndef HAVE_BSD_AUTH
pws =3D getpw();
#endif
=20
- if (!(dpy =3D XOpenDisplay(0)))
- die("cannot open display\n");
+ if (!(dpy =3D XOpenDisplay(NULL)))
+ die("slock: cannot open display\n");
+
+ /* check for Xrandr support */
rr =3D XRRQueryExtension(dpy, &rrevbase, &rrerrbase);
- /* Get the number of screens in display "dpy" and blank them all. */
+
+ /* get number of screens in display "dpy" and blank them */
nscreens =3D ScreenCount(dpy);
- if (!(locks =3D malloc(sizeof(Lock*) * nscreens)))
- die("Out of memory.\n");
- int nlocks =3D 0;
- for (screen =3D 0; screen < nscreens; screen++) {
- if ((locks[screen] =3D lockscreen(dpy, screen)) !=3D NULL)
+ if (!(locks =3D malloc(sizeof(Lock *) * nscreens))) {
+ XCloseDisplay(dpy);
+ die("slock: out of memory\n");
+ }
+ for (nlocks =3D 0, s =3D 0; s < nscreens; s++) {
+ if ((locks[s] =3D lockscreen(dpy, s)) !=3D NULL)
nlocks++;
}
- XSync(dpy, False);
+ XSync(dpy, 0);
=20
- /* Did we actually manage to lock something? */
- if (nlocks =3D=3D 0) { /* nothing to protect */
+ /* did we actually manage to lock anything? */
+ if (nlocks =3D=3D 0) {
+ /* nothing to protect */
free(locks);
XCloseDisplay(dpy);
return 1;
}
=20
- if (argc >=3D 2 && fork() =3D=3D 0) {
- if (dpy)
- close(ConnectionNumber(dpy));
- execvp(argv[1], argv+1);
- die("execvp %s failed: %s\n", argv[1], strerror(errno));
+ /* run post-lock command */
+ if (argc > 0) {
+ switch (fork()) {
+ case -1:
+ free(locks);
+ XCloseDisplay(dpy);
+ die("slock: fork failed: %s\n", strerror(errno));
+ case 0:
+ if (close(ConnectionNumber(dpy)) < 0)
+ die("slock: close: %s\n", strerror(errno));
+ execvp(argv[0], argv);
+ fprintf(stderr, "slock: execvp %s: %s\n", argv[0],
+ strerror(errno));
+ _exit(1);
+ }
}
=20
- /* Everything is now blank. Now wait for the correct password. */
+ /* everything is now blank. Wait for the correct password */
#ifdef HAVE_BSD_AUTH
readpw(dpy);
#else
readpw(dpy, pws);
#endif
=20
- /* Password ok, unlock everything and quit. */
- for (screen =3D 0; screen < nscreens; screen++)
- unlockscreen(dpy, locks[screen]);
+ /* password ok, unlock everything and quit */
+ for (s =3D 0; s < nscreens; s++)
+ unlockscreen(dpy, locks[s]);
=20
free(locks);
XCloseDisplay(dpy);
--=20
2.7.3
--Multipart=_Mon__22_Aug_2016_16_54_31_+0200_conXDITABGea0pPs--
Received on Mon Sep 17 2001 - 00:00:00 CEST
This archive was generated by hypermail 2.3.0 : Mon Aug 22 2016 - 18:00:14 CEST