added logo+description

[dwm.git] / util.c

diff --git a/util.c b/util.c
index 99842e9..0a5bd96 100644 (file)
--- a/util.c
+++ b/util.c
@@ -7,9 +7,14 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "wm.h"
 
 void
-error(char *errstr, ...) {
+error(const char *errstr, ...) {
        va_list ap;
        va_start(ap, errstr);
        vfprintf(stderr, errstr, ap);
@@ -55,23 +60,35 @@ erealloc(void *ptr, unsigned int size)
 char *
 estrdup(const char *str)
 {
-       void *res = strdup(str);
+       char *res = strdup(str);
        if(!res)
                bad_malloc(strlen(str));
        return res;
 }
 
 void
-failed_assert(char *a, char *file, int line)
-{
-       fprintf(stderr, "Assertion \"%s\" failed at %s:%d\n", a, file, line);
-       abort();
-}
-
-void
 swap(void **p1, void **p2)
 {
        void *tmp = *p1;
        *p1 = *p2;
        *p2 = tmp;
 }
+
+void
+spawn(char *argv[])
+{
+       if(!argv || !argv[0])
+               return;
+       if(fork() == 0) {
+               if(fork() == 0) {
+                       if(dpy)
+                               close(ConnectionNumber(dpy));
+                       setsid();
+                       execvp(argv[0], argv);
+                       fprintf(stderr, "dwm: execvp %s", argv[0]);
+                       perror(" failed");
+               }
+               exit (0);
+       }
+       wait(0);
+}