prepared 0.3

[dwm.git] / util.c

diff --git a/util.c b/util.c
index 3553f5d..1e36b25 100644 (file)
--- a/util.c
+++ b/util.c
@@ -2,17 +2,60 @@
  * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
  * See LICENSE file for license details.
  */
  * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
  * See LICENSE file for license details.
  */

+#include "dwm.h"

 
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
 
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>

+#include <sys/wait.h>
+#include <unistd.h>
+
+/* static */
+
+static void
+bad_malloc(unsigned int size)
+{
+       fprintf(stderr, "fatal: could not malloc() %d bytes\n",
+                       (int) size);
+       exit(EXIT_FAILURE);
+}
+
+/* extern */
+
+void *
+emallocz(unsigned int size)
+{
+       void *res = calloc(1, size);
+       if(!res)
+               bad_malloc(size);
+       return res;
+}

 
 void
 
 void

-error(char *errstr, ...) {
+eprint(const char *errstr, ...) {

        va_list ap;
        va_start(ap, errstr);
        vfprintf(stderr, errstr, ap);
        va_end(ap);
        va_list ap;
        va_start(ap, errstr);
        vfprintf(stderr, errstr, ap);
        va_end(ap);

-       exit(1);
+       exit(EXIT_FAILURE);

 }
 
 }
 

+void
+spawn(Arg *arg)
+{
+       char **argv = (char **)arg->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(EXIT_FAILURE);
+       }
+       wait(0);
+}