Code formatting + st refactoring.
This commit is contained in:
parent
b5878fc205
commit
e15f7fb669
28 changed files with 5853 additions and 6321 deletions
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@ -10,55 +10,55 @@ extern char *argv0;
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/* use main(int argc, char *argv[]) */
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#define ARGBEGIN for (argv0 = *argv, argv++, argc--;\
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argv[0] && argv[0][0] == '-'\
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&& argv[0][1];\
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argc--, argv++) {\
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char argc_;\
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char **argv_;\
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int brk_;\
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if (argv[0][1] == '-' && argv[0][2] == '\0') {\
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argv++;\
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argc--;\
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break;\
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}\
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for (brk_ = 0, argv[0]++, argv_ = argv;\
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argv[0][0] && !brk_;\
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argv[0]++) {\
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if (argv_ != argv)\
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break;\
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argc_ = argv[0][0];\
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switch (argc_)
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argv[0] && argv[0][0] == '-'\
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&& argv[0][1];\
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argc--, argv++) {\
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char argc_;\
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char **argv_;\
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int brk_;\
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if (argv[0][1] == '-' && argv[0][2] == '\0') {\
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argv++;\
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argc--;\
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break;\
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}\
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for (brk_ = 0, argv[0]++, argv_ = argv;\
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argv[0][0] && !brk_;\
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argv[0]++) {\
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if (argv_ != argv)\
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break;\
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argc_ = argv[0][0];\
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switch (argc_)
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/* Handles obsolete -NUM syntax */
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/* Handles obsolete -NUM syntax */
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#define ARGNUM case '0':\
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case '1':\
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case '2':\
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case '3':\
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case '4':\
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case '5':\
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case '6':\
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case '7':\
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case '8':\
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case '9'
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case '1':\
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case '2':\
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case '3':\
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case '4':\
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case '5':\
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case '6':\
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case '7':\
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case '8':\
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case '9'
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#define ARGEND }\
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}
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}
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#define ARGC() argc_
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#define ARGNUMF() (brk_ = 1, estrtonum(argv[0], 0, INT_MAX))
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#define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\
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((x), abort(), (char *)0) :\
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(brk_ = 1, (argv[0][1] != '\0')?\
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(&argv[0][1]) :\
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(argc--, argv++, argv[0])))
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((x), abort(), (char *)0) :\
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(brk_ = 1, (argv[0][1] != '\0')?\
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(&argv[0][1]) :\
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(argc--, argv++, argv[0])))
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#define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL)?\
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(char *)0 :\
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(brk_ = 1, (argv[0][1] != '\0')?\
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(&argv[0][1]) :\
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(argc--, argv++, argv[0])))
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(char *)0 :\
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(brk_ = 1, (argv[0][1] != '\0')?\
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(&argv[0][1]) :\
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(argc--, argv++, argv[0])))
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#define LNGARG() &argv[0][0]
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@ -3,10 +3,10 @@ static const char *user = "nobody";
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static const char *group = "nogroup";
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static const char *colorname[NUMCOLS] = {
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[BACKGROUND] = "black", /* after initialization */
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[INIT] = "#2d2d2d", /* after initialization */
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[INPUT] = "#005577", /* during input */
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[FAILED] = "#CC3333", /* wrong password */
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[BACKGROUND] = "black", /* after initialization */
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[INIT] = "#2d2d2d", /* after initialization */
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[INPUT] = "#005577", /* during input */
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[FAILED] = "#CC3333", /* wrong password */
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};
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/* treat a cleared input like a wrong password (color) */
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@ -18,15 +18,15 @@ static const int logow = 12; /* grid width and height for right center alignment
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static const int logoh = 6;
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static XRectangle rectangles[9] = {
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/* x y w h */
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{ 0, 3, 1, 3 },
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{ 1, 3, 2, 1 },
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{ 0, 5, 8, 1 },
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{ 3, 0, 1, 5 },
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{ 5, 3, 1, 2 },
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{ 7, 3, 1, 2 },
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{ 8, 3, 4, 1 },
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{ 9, 4, 1, 2 },
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{ 11, 4, 1, 2 },
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/* x y w h */
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{ 0, 3, 1, 3 },
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{ 1, 3, 2, 1 },
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{ 0, 5, 8, 1 },
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{ 3, 0, 1, 5 },
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{ 5, 3, 1, 2 },
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{ 7, 3, 1, 2 },
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{ 8, 3, 4, 1 },
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{ 9, 4, 1, 2 },
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{ 11, 4, 1, 2 },
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};
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@ -6,14 +6,14 @@
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#include <string.h>
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__attribute__((weak)) void
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__attribute__((weak)) void
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__explicit_bzero_hook(void *buf, size_t len)
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{
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}
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void
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void
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explicit_bzero(void *buf, size_t len)
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{
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memset(buf, 0, len);
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__explicit_bzero_hook(buf, len);
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memset(buf, 0, len);
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__explicit_bzero_hook(buf, len);
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}
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@ -30,433 +30,433 @@
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char *argv0;
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enum {
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BACKGROUND,
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INIT,
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INPUT,
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FAILED,
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NUMCOLS
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BACKGROUND,
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INIT,
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INPUT,
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FAILED,
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NUMCOLS
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};
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#include "config.h"
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struct lock {
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int screen;
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Window root, win;
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Pixmap pmap;
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unsigned long colors[NUMCOLS];
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unsigned int x, y;
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unsigned int xoff, yoff, mw, mh;
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Drawable drawable;
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GC gc;
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XRectangle rectangles[LENGTH(rectangles)];
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int screen;
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Window root, win;
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Pixmap pmap;
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unsigned long colors[NUMCOLS];
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unsigned int x, y;
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unsigned int xoff, yoff, mw, mh;
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Drawable drawable;
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GC gc;
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XRectangle rectangles[LENGTH(rectangles)];
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};
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struct xrandr {
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int active;
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int evbase;
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int errbase;
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int active;
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int evbase;
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int errbase;
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};
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static void
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static void
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die(const char *errstr, ...)
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{
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va_list ap;
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va_list ap;
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va_start(ap, errstr);
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vfprintf(stderr, errstr, ap);
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va_end(ap);
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exit(1);
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va_start(ap, errstr);
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vfprintf(stderr, errstr, ap);
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va_end(ap);
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exit(1);
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}
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#ifdef __linux__
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#include <fcntl.h>
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#include <linux/oom.h>
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static void
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static void
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dontkillme(void)
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{
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FILE *f;
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const char oomfile[] = "/proc/self/oom_score_adj";
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FILE *f;
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const char oomfile[] = "/proc/self/oom_score_adj";
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if (!(f = fopen(oomfile, "w"))) {
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if (errno == ENOENT)
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return;
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die("slock: fopen %s: %s\n", oomfile, strerror(errno));
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}
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fprintf(f, "%d", OOM_SCORE_ADJ_MIN);
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if (fclose(f)) {
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if (errno == EACCES)
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die("slock: unable to disable OOM killer. "
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"Make sure to suid or sgid slock.\n");
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else
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die("slock: fclose %s: %s\n", oomfile, strerror(errno));
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}
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if (!(f = fopen(oomfile, "w"))) {
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if (errno == ENOENT)
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return;
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die("slock: fopen %s: %s\n", oomfile, strerror(errno));
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}
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fprintf(f, "%d", OOM_SCORE_ADJ_MIN);
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if (fclose(f)) {
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if (errno == EACCES)
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die("slock: unable to disable OOM killer. "
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"Make sure to suid or sgid slock.\n");
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else
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die("slock: fclose %s: %s\n", oomfile, strerror(errno));
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}
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}
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#endif
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static const char *
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static const char *
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gethash(void)
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{
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const char *hash;
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struct passwd *pw;
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const char *hash;
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struct passwd *pw;
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/* Check if the current user has a password entry */
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errno = 0;
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if (!(pw = getpwuid(getuid()))) {
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if (errno)
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die("slock: getpwuid: %s\n", strerror(errno));
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else
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die("slock: cannot retrieve password entry\n");
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}
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hash = pw->pw_passwd;
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/* Check if the current user has a password entry */
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errno = 0;
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if (!(pw = getpwuid(getuid()))) {
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if (errno)
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die("slock: getpwuid: %s\n", strerror(errno));
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else
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die("slock: cannot retrieve password entry\n");
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}
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hash = pw->pw_passwd;
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#if HAVE_SHADOW_H
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if (!strcmp(hash, "x")) {
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struct spwd *sp;
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if (!(sp = getspnam(pw->pw_name)))
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die("slock: getspnam: cannot retrieve shadow entry. "
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"Make sure to suid or sgid slock.\n");
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hash = sp->sp_pwdp;
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}
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if (!strcmp(hash, "x")) {
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struct spwd *sp;
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if (!(sp = getspnam(pw->pw_name)))
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die("slock: getspnam: cannot retrieve shadow entry. "
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"Make sure to suid or sgid slock.\n");
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hash = sp->sp_pwdp;
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}
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#else
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if (!strcmp(hash, "*")) {
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if (!strcmp(hash, "*")) {
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#ifdef __OpenBSD__
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if (!(pw = getpwuid_shadow(getuid())))
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die("slock: getpwnam_shadow: cannot retrieve shadow entry. "
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"Make sure to suid or sgid slock.\n");
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hash = pw->pw_passwd;
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if (!(pw = getpwuid_shadow(getuid())))
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die("slock: getpwnam_shadow: cannot retrieve shadow entry. "
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"Make sure to suid or sgid slock.\n");
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hash = pw->pw_passwd;
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#else
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die("slock: getpwuid: cannot retrieve shadow entry. "
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"Make sure to suid or sgid slock.\n");
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die("slock: getpwuid: cannot retrieve shadow entry. "
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"Make sure to suid or sgid slock.\n");
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#endif /* __OpenBSD__ */
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}
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}
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#endif /* HAVE_SHADOW_H */
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return hash;
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return hash;
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}
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static void
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static void
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resizerectangles(struct lock *lock)
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{
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int i;
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int i;
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for (i = 0; i < LENGTH(rectangles); i++){
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lock->rectangles[i].x = (rectangles[i].x * logosize)
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+ lock->xoff + ((lock->mw) / 2) - (logow / 2 * logosize);
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lock->rectangles[i].y = (rectangles[i].y * logosize)
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+ lock->yoff + ((lock->mh) / 2) - (logoh / 2 * logosize);
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lock->rectangles[i].width = rectangles[i].width * logosize;
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lock->rectangles[i].height = rectangles[i].height * logosize;
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}
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for (i = 0; i < LENGTH(rectangles); i++){
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lock->rectangles[i].x = (rectangles[i].x * logosize)
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+ lock->xoff + ((lock->mw) / 2) - (logow / 2 * logosize);
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lock->rectangles[i].y = (rectangles[i].y * logosize)
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+ lock->yoff + ((lock->mh) / 2) - (logoh / 2 * logosize);
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lock->rectangles[i].width = rectangles[i].width * logosize;
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lock->rectangles[i].height = rectangles[i].height * logosize;
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}
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}
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static void
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static void
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drawlogo(Display *dpy, struct lock *lock, int color)
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{
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XSetForeground(dpy, lock->gc, lock->colors[BACKGROUND]);
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XFillRectangle(dpy, lock->drawable, lock->gc, 0, 0, lock->x, lock->y);
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XSetForeground(dpy, lock->gc, lock->colors[color]);
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XFillRectangles(dpy, lock->drawable, lock->gc, lock->rectangles, LENGTH(rectangles));
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XCopyArea(dpy, lock->drawable, lock->win, lock->gc, 0, 0, lock->x, lock->y, 0, 0);
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XSync(dpy, False);
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XSetForeground(dpy, lock->gc, lock->colors[BACKGROUND]);
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XFillRectangle(dpy, lock->drawable, lock->gc, 0, 0, lock->x, lock->y);
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XSetForeground(dpy, lock->gc, lock->colors[color]);
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XFillRectangles(dpy, lock->drawable, lock->gc, lock->rectangles, LENGTH(rectangles));
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XCopyArea(dpy, lock->drawable, lock->win, lock->gc, 0, 0, lock->x, lock->y, 0, 0);
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XSync(dpy, False);
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}
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static void
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static void
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readpw(Display *dpy, struct xrandr *rr, struct lock **locks, int nscreens,
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const char *hash)
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const char *hash)
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{
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XRRScreenChangeNotifyEvent *rre;
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char buf[32], passwd[256], *inputhash;
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int num, screen, running, failure, oldc;
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unsigned int len, color;
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KeySym ksym;
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XEvent ev;
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XRRScreenChangeNotifyEvent *rre;
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char buf[32], passwd[256], *inputhash;
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int num, screen, running, failure, oldc;
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unsigned int len, color;
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KeySym ksym;
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XEvent ev;
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len = 0;
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running = 1;
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failure = 0;
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oldc = INIT;
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len = 0;
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running = 1;
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failure = 0;
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oldc = INIT;
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while (running && !XNextEvent(dpy, &ev)) {
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if (ev.type == KeyPress) {
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explicit_bzero(&buf, sizeof(buf));
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num = XLookupString(&ev.xkey, buf, sizeof(buf), &ksym, 0);
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if (IsKeypadKey(ksym)) {
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if (ksym == XK_KP_Enter)
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ksym = XK_Return;
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else if (ksym >= XK_KP_0 && ksym <= XK_KP_9)
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ksym = (ksym - XK_KP_0) + XK_0;
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}
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if (IsFunctionKey(ksym) ||
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IsKeypadKey(ksym) ||
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IsMiscFunctionKey(ksym) ||
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IsPFKey(ksym) ||
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IsPrivateKeypadKey(ksym))
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continue;
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switch (ksym) {
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case XK_Return:
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passwd[len] = '\0';
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errno = 0;
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if (!(inputhash = crypt(passwd, hash)))
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fprintf(stderr, "slock: crypt: %s\n", strerror(errno));
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else
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running = !!strcmp(inputhash, hash);
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if (running) {
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XBell(dpy, 100);
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failure = 1;
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}
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explicit_bzero(&passwd, sizeof(passwd));
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len = 0;
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break;
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case XK_Escape:
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explicit_bzero(&passwd, sizeof(passwd));
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len = 0;
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break;
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case XK_BackSpace:
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if (len)
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passwd[--len] = '\0';
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break;
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default:
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if (num && !iscntrl((int)buf[0]) &&
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(len + num < sizeof(passwd))) {
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memcpy(passwd + len, buf, num);
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len += num;
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}
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break;
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}
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color = len ? INPUT : ((failure || failonclear) ? FAILED : INIT);
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if (running && oldc != color) {
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for (screen = 0; screen < nscreens; screen++) {
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drawlogo(dpy, locks[screen], color);
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}
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oldc = color;
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}
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} else if (rr->active && ev.type == rr->evbase + RRScreenChangeNotify) {
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rre = (XRRScreenChangeNotifyEvent*)&ev;
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for (screen = 0; screen < nscreens; screen++) {
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if (locks[screen]->win == rre->window) {
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if (rre->rotation == RR_Rotate_90 ||
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rre->rotation == RR_Rotate_270)
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XResizeWindow(dpy, locks[screen]->win,
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rre->height, rre->width);
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else
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XResizeWindow(dpy, locks[screen]->win,
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rre->width, rre->height);
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XClearWindow(dpy, locks[screen]->win);
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break;
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}
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}
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} else {
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for (screen = 0; screen < nscreens; screen++)
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XRaiseWindow(dpy, locks[screen]->win);
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}
|
||||
}
|
||||
while (running && !XNextEvent(dpy, &ev)) {
|
||||
if (ev.type == KeyPress) {
|
||||
explicit_bzero(&buf, sizeof(buf));
|
||||
num = XLookupString(&ev.xkey, buf, sizeof(buf), &ksym, 0);
|
||||
if (IsKeypadKey(ksym)) {
|
||||
if (ksym == XK_KP_Enter)
|
||||
ksym = XK_Return;
|
||||
else if (ksym >= XK_KP_0 && ksym <= XK_KP_9)
|
||||
ksym = (ksym - XK_KP_0) + XK_0;
|
||||
}
|
||||
if (IsFunctionKey(ksym) ||
|
||||
IsKeypadKey(ksym) ||
|
||||
IsMiscFunctionKey(ksym) ||
|
||||
IsPFKey(ksym) ||
|
||||
IsPrivateKeypadKey(ksym))
|
||||
continue;
|
||||
switch (ksym) {
|
||||
case XK_Return:
|
||||
passwd[len] = '\0';
|
||||
errno = 0;
|
||||
if (!(inputhash = crypt(passwd, hash)))
|
||||
fprintf(stderr, "slock: crypt: %s\n", strerror(errno));
|
||||
else
|
||||
running = !!strcmp(inputhash, hash);
|
||||
if (running) {
|
||||
XBell(dpy, 100);
|
||||
failure = 1;
|
||||
}
|
||||
explicit_bzero(&passwd, sizeof(passwd));
|
||||
len = 0;
|
||||
break;
|
||||
case XK_Escape:
|
||||
explicit_bzero(&passwd, sizeof(passwd));
|
||||
len = 0;
|
||||
break;
|
||||
case XK_BackSpace:
|
||||
if (len)
|
||||
passwd[--len] = '\0';
|
||||
break;
|
||||
default:
|
||||
if (num && !iscntrl((int)buf[0]) &&
|
||||
(len + num < sizeof(passwd))) {
|
||||
memcpy(passwd + len, buf, num);
|
||||
len += num;
|
||||
}
|
||||
break;
|
||||
}
|
||||
color = len ? INPUT : ((failure || failonclear) ? FAILED : INIT);
|
||||
if (running && oldc != color) {
|
||||
for (screen = 0; screen < nscreens; screen++) {
|
||||
drawlogo(dpy, locks[screen], color);
|
||||
}
|
||||
oldc = color;
|
||||
}
|
||||
} else if (rr->active && ev.type == rr->evbase + RRScreenChangeNotify) {
|
||||
rre = (XRRScreenChangeNotifyEvent*)&ev;
|
||||
for (screen = 0; screen < nscreens; screen++) {
|
||||
if (locks[screen]->win == rre->window) {
|
||||
if (rre->rotation == RR_Rotate_90 ||
|
||||
rre->rotation == RR_Rotate_270)
|
||||
XResizeWindow(dpy, locks[screen]->win,
|
||||
rre->height, rre->width);
|
||||
else
|
||||
XResizeWindow(dpy, locks[screen]->win,
|
||||
rre->width, rre->height);
|
||||
XClearWindow(dpy, locks[screen]->win);
|
||||
break;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
for (screen = 0; screen < nscreens; screen++)
|
||||
XRaiseWindow(dpy, locks[screen]->win);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static struct lock *
|
||||
static struct lock *
|
||||
lockscreen(Display *dpy, struct xrandr *rr, int screen)
|
||||
{
|
||||
char curs[] = {0, 0, 0, 0, 0, 0, 0, 0};
|
||||
int i, ptgrab, kbgrab;
|
||||
struct lock *lock;
|
||||
XColor color, dummy;
|
||||
XSetWindowAttributes wa;
|
||||
Cursor invisible;
|
||||
char curs[] = {0, 0, 0, 0, 0, 0, 0, 0};
|
||||
int i, ptgrab, kbgrab;
|
||||
struct lock *lock;
|
||||
XColor color, dummy;
|
||||
XSetWindowAttributes wa;
|
||||
Cursor invisible;
|
||||
#ifdef XINERAMA
|
||||
XineramaScreenInfo *info;
|
||||
int n;
|
||||
XineramaScreenInfo *info;
|
||||
int n;
|
||||
#endif
|
||||
|
||||
if (dpy == NULL || screen < 0 || !(lock = malloc(sizeof(struct lock))))
|
||||
return NULL;
|
||||
if (dpy == NULL || screen < 0 || !(lock = malloc(sizeof(struct lock))))
|
||||
return NULL;
|
||||
|
||||
lock->screen = screen;
|
||||
lock->root = RootWindow(dpy, lock->screen);
|
||||
lock->screen = screen;
|
||||
lock->root = RootWindow(dpy, lock->screen);
|
||||
|
||||
for (i = 0; i < NUMCOLS; i++) {
|
||||
XAllocNamedColor(dpy, DefaultColormap(dpy, lock->screen),
|
||||
colorname[i], &color, &dummy);
|
||||
lock->colors[i] = color.pixel;
|
||||
}
|
||||
for (i = 0; i < NUMCOLS; i++) {
|
||||
XAllocNamedColor(dpy, DefaultColormap(dpy, lock->screen),
|
||||
colorname[i], &color, &dummy);
|
||||
lock->colors[i] = color.pixel;
|
||||
}
|
||||
|
||||
lock->x = DisplayWidth(dpy, lock->screen);
|
||||
lock->y = DisplayHeight(dpy, lock->screen);
|
||||
lock->x = DisplayWidth(dpy, lock->screen);
|
||||
lock->y = DisplayHeight(dpy, lock->screen);
|
||||
#ifdef XINERAMA
|
||||
if ((info = XineramaQueryScreens(dpy, &n))) {
|
||||
lock->xoff = info[0].x_org;
|
||||
lock->yoff = info[0].y_org;
|
||||
lock->mw = info[0].width;
|
||||
lock->mh = info[0].height;
|
||||
} else
|
||||
if ((info = XineramaQueryScreens(dpy, &n))) {
|
||||
lock->xoff = info[0].x_org;
|
||||
lock->yoff = info[0].y_org;
|
||||
lock->mw = info[0].width;
|
||||
lock->mh = info[0].height;
|
||||
} else
|
||||
#endif
|
||||
{
|
||||
lock->xoff = lock->yoff = 0;
|
||||
lock->mw = lock->x;
|
||||
lock->mh = lock->y;
|
||||
}
|
||||
lock->drawable = XCreatePixmap(dpy, lock->root,
|
||||
lock->x, lock->y, DefaultDepth(dpy, screen));
|
||||
lock->gc = XCreateGC(dpy, lock->root, 0, NULL);
|
||||
XSetLineAttributes(dpy, lock->gc, 1, LineSolid, CapButt, JoinMiter);
|
||||
{
|
||||
lock->xoff = lock->yoff = 0;
|
||||
lock->mw = lock->x;
|
||||
lock->mh = lock->y;
|
||||
}
|
||||
lock->drawable = XCreatePixmap(dpy, lock->root,
|
||||
lock->x, lock->y, DefaultDepth(dpy, screen));
|
||||
lock->gc = XCreateGC(dpy, lock->root, 0, NULL);
|
||||
XSetLineAttributes(dpy, lock->gc, 1, LineSolid, CapButt, JoinMiter);
|
||||
|
||||
/* init */
|
||||
wa.override_redirect = 1;
|
||||
wa.background_pixel = lock->colors[BACKGROUND];
|
||||
lock->win = XCreateWindow(dpy, lock->root, 0, 0,
|
||||
lock->x, lock->y,
|
||||
0, DefaultDepth(dpy, lock->screen),
|
||||
CopyFromParent,
|
||||
DefaultVisual(dpy, lock->screen),
|
||||
CWOverrideRedirect | CWBackPixel, &wa);
|
||||
lock->pmap = XCreateBitmapFromData(dpy, lock->win, curs, 8, 8);
|
||||
invisible = XCreatePixmapCursor(dpy, lock->pmap, lock->pmap,
|
||||
&color, &color, 0, 0);
|
||||
XDefineCursor(dpy, lock->win, invisible);
|
||||
/* init */
|
||||
wa.override_redirect = 1;
|
||||
wa.background_pixel = lock->colors[BACKGROUND];
|
||||
lock->win = XCreateWindow(dpy, lock->root, 0, 0,
|
||||
lock->x, lock->y,
|
||||
0, DefaultDepth(dpy, lock->screen),
|
||||
CopyFromParent,
|
||||
DefaultVisual(dpy, lock->screen),
|
||||
CWOverrideRedirect | CWBackPixel, &wa);
|
||||
lock->pmap = XCreateBitmapFromData(dpy, lock->win, curs, 8, 8);
|
||||
invisible = XCreatePixmapCursor(dpy, lock->pmap, lock->pmap,
|
||||
&color, &color, 0, 0);
|
||||
XDefineCursor(dpy, lock->win, invisible);
|
||||
|
||||
resizerectangles(lock);
|
||||
resizerectangles(lock);
|
||||
|
||||
/* Try to grab mouse pointer *and* keyboard for 600ms, else fail the lock */
|
||||
for (i = 0, ptgrab = kbgrab = -1; i < 6; i++) {
|
||||
if (ptgrab != GrabSuccess) {
|
||||
ptgrab = XGrabPointer(dpy, lock->root, False,
|
||||
ButtonPressMask | ButtonReleaseMask |
|
||||
PointerMotionMask, GrabModeAsync,
|
||||
GrabModeAsync, None, invisible, CurrentTime);
|
||||
}
|
||||
if (kbgrab != GrabSuccess) {
|
||||
kbgrab = XGrabKeyboard(dpy, lock->root, True,
|
||||
GrabModeAsync, GrabModeAsync, CurrentTime);
|
||||
}
|
||||
/* Try to grab mouse pointer *and* keyboard for 600ms, else fail the lock */
|
||||
for (i = 0, ptgrab = kbgrab = -1; i < 6; i++) {
|
||||
if (ptgrab != GrabSuccess) {
|
||||
ptgrab = XGrabPointer(dpy, lock->root, False,
|
||||
ButtonPressMask | ButtonReleaseMask |
|
||||
PointerMotionMask, GrabModeAsync,
|
||||
GrabModeAsync, None, invisible, CurrentTime);
|
||||
}
|
||||
if (kbgrab != GrabSuccess) {
|
||||
kbgrab = XGrabKeyboard(dpy, lock->root, True,
|
||||
GrabModeAsync, GrabModeAsync, CurrentTime);
|
||||
}
|
||||
|
||||
/* input is grabbed: we can lock the screen */
|
||||
if (ptgrab == GrabSuccess && kbgrab == GrabSuccess) {
|
||||
XMapRaised(dpy, lock->win);
|
||||
if (rr->active)
|
||||
XRRSelectInput(dpy, lock->win, RRScreenChangeNotifyMask);
|
||||
/* input is grabbed: we can lock the screen */
|
||||
if (ptgrab == GrabSuccess && kbgrab == GrabSuccess) {
|
||||
XMapRaised(dpy, lock->win);
|
||||
if (rr->active)
|
||||
XRRSelectInput(dpy, lock->win, RRScreenChangeNotifyMask);
|
||||
|
||||
XSelectInput(dpy, lock->root, SubstructureNotifyMask);
|
||||
drawlogo(dpy, lock, INIT);
|
||||
return lock;
|
||||
}
|
||||
XSelectInput(dpy, lock->root, SubstructureNotifyMask);
|
||||
drawlogo(dpy, lock, INIT);
|
||||
return lock;
|
||||
}
|
||||
|
||||
/* retry on AlreadyGrabbed but fail on other errors */
|
||||
if ((ptgrab != AlreadyGrabbed && ptgrab != GrabSuccess) ||
|
||||
(kbgrab != AlreadyGrabbed && kbgrab != GrabSuccess))
|
||||
break;
|
||||
/* retry on AlreadyGrabbed but fail on other errors */
|
||||
if ((ptgrab != AlreadyGrabbed && ptgrab != GrabSuccess) ||
|
||||
(kbgrab != AlreadyGrabbed && kbgrab != GrabSuccess))
|
||||
break;
|
||||
|
||||
usleep(100000);
|
||||
}
|
||||
usleep(100000);
|
||||
}
|
||||
|
||||
/* we couldn't grab all input: fail out */
|
||||
if (ptgrab != GrabSuccess)
|
||||
fprintf(stderr, "slock: unable to grab mouse pointer for screen %d\n",
|
||||
screen);
|
||||
if (kbgrab != GrabSuccess)
|
||||
fprintf(stderr, "slock: unable to grab keyboard for screen %d\n",
|
||||
screen);
|
||||
return NULL;
|
||||
/* we couldn't grab all input: fail out */
|
||||
if (ptgrab != GrabSuccess)
|
||||
fprintf(stderr, "slock: unable to grab mouse pointer for screen %d\n",
|
||||
screen);
|
||||
if (kbgrab != GrabSuccess)
|
||||
fprintf(stderr, "slock: unable to grab keyboard for screen %d\n",
|
||||
screen);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static void
|
||||
static void
|
||||
usage(void)
|
||||
{
|
||||
die("usage: slock [-v] [cmd [arg ...]]\n");
|
||||
die("usage: slock [-v] [cmd [arg ...]]\n");
|
||||
}
|
||||
|
||||
int
|
||||
main(int argc, char **argv) {
|
||||
struct xrandr rr;
|
||||
struct lock **locks;
|
||||
struct passwd *pwd;
|
||||
struct group *grp;
|
||||
uid_t duid;
|
||||
gid_t dgid;
|
||||
const char *hash;
|
||||
Display *dpy;
|
||||
int s, nlocks, nscreens;
|
||||
struct xrandr rr;
|
||||
struct lock **locks;
|
||||
struct passwd *pwd;
|
||||
struct group *grp;
|
||||
uid_t duid;
|
||||
gid_t dgid;
|
||||
const char *hash;
|
||||
Display *dpy;
|
||||
int s, nlocks, nscreens;
|
||||
|
||||
ARGBEGIN {
|
||||
case 'v':
|
||||
fprintf(stderr, "slock-"VERSION"\n");
|
||||
return 0;
|
||||
default:
|
||||
usage();
|
||||
} ARGEND
|
||||
ARGBEGIN {
|
||||
case 'v':
|
||||
fprintf(stderr, "slock-"VERSION"\n");
|
||||
return 0;
|
||||
default:
|
||||
usage();
|
||||
} ARGEND
|
||||
|
||||
/* validate drop-user and -group */
|
||||
errno = 0;
|
||||
if (!(pwd = getpwnam(user)))
|
||||
die("slock: getpwnam %s: %s\n", user,
|
||||
errno ? strerror(errno) : "user entry not found");
|
||||
duid = pwd->pw_uid;
|
||||
errno = 0;
|
||||
if (!(grp = getgrnam(group)))
|
||||
die("slock: getgrnam %s: %s\n", group,
|
||||
errno ? strerror(errno) : "group entry not found");
|
||||
dgid = grp->gr_gid;
|
||||
/* validate drop-user and -group */
|
||||
errno = 0;
|
||||
if (!(pwd = getpwnam(user)))
|
||||
die("slock: getpwnam %s: %s\n", user,
|
||||
errno ? strerror(errno) : "user entry not found");
|
||||
duid = pwd->pw_uid;
|
||||
errno = 0;
|
||||
if (!(grp = getgrnam(group)))
|
||||
die("slock: getgrnam %s: %s\n", group,
|
||||
errno ? strerror(errno) : "group entry not found");
|
||||
dgid = grp->gr_gid;
|
||||
|
||||
#ifdef __linux__
|
||||
dontkillme();
|
||||
dontkillme();
|
||||
#endif
|
||||
|
||||
hash = gethash();
|
||||
errno = 0;
|
||||
if (!crypt("", hash))
|
||||
die("slock: crypt: %s\n", strerror(errno));
|
||||
hash = gethash();
|
||||
errno = 0;
|
||||
if (!crypt("", hash))
|
||||
die("slock: crypt: %s\n", strerror(errno));
|
||||
|
||||
if (!(dpy = XOpenDisplay(NULL)))
|
||||
die("slock: cannot open display\n");
|
||||
if (!(dpy = XOpenDisplay(NULL)))
|
||||
die("slock: cannot open display\n");
|
||||
|
||||
/* drop privileges */
|
||||
if (setgroups(0, NULL) < 0)
|
||||
die("slock: setgroups: %s\n", strerror(errno));
|
||||
if (setgid(dgid) < 0)
|
||||
die("slock: setgid: %s\n", strerror(errno));
|
||||
if (setuid(duid) < 0)
|
||||
die("slock: setuid: %s\n", strerror(errno));
|
||||
/* drop privileges */
|
||||
if (setgroups(0, NULL) < 0)
|
||||
die("slock: setgroups: %s\n", strerror(errno));
|
||||
if (setgid(dgid) < 0)
|
||||
die("slock: setgid: %s\n", strerror(errno));
|
||||
if (setuid(duid) < 0)
|
||||
die("slock: setuid: %s\n", strerror(errno));
|
||||
|
||||
/* check for Xrandr support */
|
||||
rr.active = XRRQueryExtension(dpy, &rr.evbase, &rr.errbase);
|
||||
/* check for Xrandr support */
|
||||
rr.active = XRRQueryExtension(dpy, &rr.evbase, &rr.errbase);
|
||||
|
||||
/* get number of screens in display "dpy" and blank them */
|
||||
nscreens = ScreenCount(dpy);
|
||||
if (!(locks = calloc(nscreens, sizeof(struct lock *))))
|
||||
die("slock: out of memory\n");
|
||||
for (nlocks = 0, s = 0; s < nscreens; s++) {
|
||||
if ((locks[s] = lockscreen(dpy, &rr, s)) != NULL)
|
||||
nlocks++;
|
||||
else
|
||||
break;
|
||||
}
|
||||
XSync(dpy, 0);
|
||||
/* get number of screens in display "dpy" and blank them */
|
||||
nscreens = ScreenCount(dpy);
|
||||
if (!(locks = calloc(nscreens, sizeof(struct lock *))))
|
||||
die("slock: out of memory\n");
|
||||
for (nlocks = 0, s = 0; s < nscreens; s++) {
|
||||
if ((locks[s] = lockscreen(dpy, &rr, s)) != NULL)
|
||||
nlocks++;
|
||||
else
|
||||
break;
|
||||
}
|
||||
XSync(dpy, 0);
|
||||
|
||||
/* did we manage to lock everything? */
|
||||
if (nlocks != nscreens)
|
||||
return 1;
|
||||
/* did we manage to lock everything? */
|
||||
if (nlocks != nscreens)
|
||||
return 1;
|
||||
|
||||
/* run post-lock command */
|
||||
if (argc > 0) {
|
||||
switch (fork()) {
|
||||
case -1:
|
||||
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);
|
||||
}
|
||||
}
|
||||
/* run post-lock command */
|
||||
if (argc > 0) {
|
||||
switch (fork()) {
|
||||
case -1:
|
||||
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);
|
||||
}
|
||||
}
|
||||
|
||||
/* everything is now blank. Wait for the correct password */
|
||||
readpw(dpy, &rr, locks, nscreens, hash);
|
||||
/* everything is now blank. Wait for the correct password */
|
||||
readpw(dpy, &rr, locks, nscreens, hash);
|
||||
|
||||
for (nlocks = 0, s = 0; s < nscreens; s++) {
|
||||
XFreePixmap(dpy, locks[s]->drawable);
|
||||
XFreeGC(dpy, locks[s]->gc);
|
||||
}
|
||||
for (nlocks = 0, s = 0; s < nscreens; s++) {
|
||||
XFreePixmap(dpy, locks[s]->drawable);
|
||||
XFreeGC(dpy, locks[s]->gc);
|
||||
}
|
||||
|
||||
XSync(dpy, 0);
|
||||
XCloseDisplay(dpy);
|
||||
return 0;
|
||||
XSync(dpy, 0);
|
||||
XCloseDisplay(dpy);
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue