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authorAnselm R. Garbe <garbeam@wmii.de>2006-07-11 11:10:05 +0200
committerAnselm R. Garbe <garbeam@wmii.de>2006-07-11 11:10:05 +0200
commit3a69c5173cdd24959410870bec2a10a76272e034 (patch)
tree993f2fb75b1c44213d0c95a4da8b3a18daa739fe /util.c
parent439e15d09f6fa9271d3b49ef97194f0c80ebe161 (diff)
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implemented pipe_spawn
Diffstat (limited to 'util.c')
-rw-r--r--util.c56
1 files changed, 52 insertions, 4 deletions
diff --git a/util.c b/util.c
index 435069f..de4df98 100644
--- a/util.c
+++ b/util.c
@@ -13,6 +13,8 @@
#include "util.h"
+static char *shell = NULL;
+
void
error(char *errstr, ...) {
va_list ap;
@@ -82,19 +84,65 @@ swap(void **p1, void **p2)
}
void
-spawn(Display *dpy, const char *shell, const char *cmd)
+spawn(Display *dpy, const char *cmd)
{
- if(!cmd || !shell)
+ if(!shell && !(shell = getenv("SHELL")))
+ shell = "/bin/sh";
+
+ if(!cmd)
return;
if(fork() == 0) {
if(fork() == 0) {
+ setsid();
if(dpy)
close(ConnectionNumber(dpy));
- execl(shell, shell, "-c", cmd, (const char *)0);
- fprintf(stderr, "gridwm: execl %s", shell);
+ execlp(shell, "shell", "-c", cmd, NULL);
+ fprintf(stderr, "gridwm: execvp %s", cmd);
perror(" failed");
}
exit (0);
}
wait(0);
}
+
+void
+pipe_spawn(char *buf, unsigned int len, Display *dpy, const char *cmd)
+{
+ unsigned int l, n;
+ int pfd[2];
+
+ if(!shell && !(shell = getenv("SHELL")))
+ shell = "/bin/sh";
+
+ if(!cmd)
+ return;
+
+ if(pipe(pfd) == -1) {
+ perror("pipe");
+ exit(1);
+ }
+
+ if(fork() == 0) {
+ setsid();
+ if(dpy)
+ close(ConnectionNumber(dpy));
+ dup2(pfd[1], STDOUT_FILENO);
+ close(pfd[0]);
+ close(pfd[1]);
+ execlp(shell, "shell", "-c", cmd, NULL);
+ fprintf(stderr, "gridwm: execvp %s", cmd);
+ perror(" failed");
+ }
+ else {
+ n = 0;
+ close(pfd[1]);
+ while(l > n) {
+ if((l = read(pfd[0], buf + n, len - n)) < 1)
+ break;
+ n += l;
+ }
+ close(pfd[0]);
+ buf[n - 1] = 0;
+ }
+ wait(0);
+}