before leaning things up

[dwm.git] / util.c

diff --git a/util.c b/util.c
index 76ba5ab..3f41b3c 100644 (file)
--- a/util.c
+++ b/util.c
@@ -126,15 +126,16 @@ pipe_spawn(char *buf, unsigned int len, Display *dpy, char *argv[])
                perror(" failed");
        }
        else {
-               n = 0;
+               l = n = 0;
                close(pfd[1]);
-               while(l > n) {
+               while(n < len) {
                        if((l = read(pfd[0], buf + n, len - n)) < 1)
                                break;
                        n += l;
                }
+               while(l > n);
                close(pfd[0]);
-               buf[n - 1] = 0;
+               buf[n < len ? n : len - 1] = 0;
        }
        wait(0);
 }