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Apply selfrestart patch (r1615)

kske-dwm
kske 10 months ago
parent
commit
86026a91fe
Signed by: kske
GPG Key ID: 8BEB13EC5DF7EF13
  1. 3
      config.def.h
  2. 65
      selfrestart.c

3
config.def.h

@ -62,6 +62,8 @@ static char dmenumon[2] = "0"; /* component of dmenucmd, manipulated in spawn()
static const char *dmenucmd[] = { "dmenu_run", "-m", dmenumon, "-fn", dmenufont, "-nb", col_gray1, "-nf", col_gray3, "-sb", col_cyan, "-sf", col_gray4, NULL };
static const char *termcmd[] = { "st", NULL };
#include "selfrestart.c"
static Key keys[] = {
/* modifier key function argument */
{ MODKEY, XK_p, spawn, {.v = dmenucmd } },
@ -100,6 +102,7 @@ static Key keys[] = {
TAGKEYS( XK_7, 6)
TAGKEYS( XK_8, 7)
TAGKEYS( XK_9, 8)
{ MODKEY|ShiftMask, XK_r, self_restart, {0} },
{ MODKEY|ShiftMask, XK_q, quit, {0} },
};

65
selfrestart.c

@ -0,0 +1,65 @@
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
/**
* Magically finds the current's executable path
*
* I'm doing the do{}while(); trick because Linux (what I'm running) is not
* POSIX compilant and so lstat() cannot be trusted on /proc entries
*
* @return char* the path of the current executable
*/
char *get_dwm_path(){
struct stat s;
int r, length, rate = 42;
char *path = NULL;
if(lstat("/proc/self/exe", &s) == -1){
perror("lstat:");
return NULL;
}
length = s.st_size + 1 - rate;
do{
length+=rate;
free(path);
path = malloc(sizeof(char) * length);
if(path == NULL){
perror("malloc:");
return NULL;
}
r = readlink("/proc/self/exe", path, length);
if(r == -1){
perror("readlink:");
return NULL;
}
}while(r >= length);
path[r] = '\0';
return path;
}
/**
* self-restart
*
* Initially inspired by: Yu-Jie Lin
* https://sites.google.com/site/yjlnotes/notes/dwm
*/
void self_restart(const Arg *arg) {
char *const argv[] = {get_dwm_path(), NULL};
if(argv[0] == NULL){
return;
}
execv(argv[0], argv);
}
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