Hi,
I've attached a patch that allows dwm to exec rc-style paths, e.g.
"local/foo". This is of limited usefulness, but it's handy if you're
running rc and want to bind other directories into /bin instead of
messing with PATH. Any input would be appreciated.
-Matt Stickney
--
On Mr. Dibbler's excellent sausages: "And then you bit into them, and
learned once again that Cut-me-own-Throat Dibbler could find a use for
bits of an animal that the animal didn't know it had got. Dibbler had
worked out that with enough fried onions and mustard people would eat
*anything*."
— (Terry Pratchett, Moving Pictures)
diff -r 406003e3a01f dwm.c
--- a/dwm.c Mon Sep 27 07:53:44 2010 +0000
+++ b/dwm.c Sat Oct 23 23:03:38 2010 -0400
@@ -1587,13 +1587,59 @@
while(0 < waitpid(-1, NULL, WNOHANG));
}
+int
+rcexec(const char *file, char *const argv[])
+{
+ char path[1024];
+ char *epath, *p, *fp;
+ size_t len;
+
+ if (*file == '/')
+ return execv(file, argv);
+
+ epath = getenv("PATH");
+ if (epath == NULL) {
+ epath = "/bin";
+ }
+
+ p = epath;
+ while (*p) {
+ len=0;
+ memset(path, 0, 1024);
+ fp = path;
+ while (*p && *p != ':' && len < 1024) {
+ *fp++ = *p++;
+ len++;
+ }
+ if (*p == ':')
+ p++;
+ len = fp - path;
+ if (len < 1024) {
+ if (path[0]) {
+ fp--;
+ strcat(fp, "/");
+ len++;
+ }
+ if (len+strlen(file) < 1024) {
+ strcat(fp, file);
+ execv(path, argv);
+ } else {
+ fprintf(stderr, "rcexec: command name too long\n");
+ errno = E2BIG;
+ return -1;
+ }
+ }
+ }
+ return -1;
+}
+
void
spawn(const Arg *arg) {
if(fork() == 0) {
if(dpy)
close(ConnectionNumber(dpy));
setsid();
- execvp(((char **)arg->v)[0], (char **)arg->v);
+ rcexec(((char **)arg->v)[0], (char **)arg->v);
fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[0]);
perror(" failed");
exit(0);
