Speedup run_command

libreborn/src/util/exec.c

@@ -95,10 +95,12 @@ char *run_command(const char *const command[], int *return_code) {
         // Read stdout
         close(output_pipe[1]);
         char *output = NULL;
-        char c;
+#define BUFFER_SIZE 1024
+        char buf[BUFFER_SIZE];
         int bytes_read = 0;
-        while ((bytes_read = read(output_pipe[0], (void *) &c, 1)) > 0) {
-            string_append(&output, "%c", c);
+        while ((bytes_read = read(output_pipe[0], (void *) buf, BUFFER_SIZE - 1 /* Account For NULL-Terminator */)) > 0) {
+            buf[bytes_read] = '\0';
+            string_append(&output, "%s", buf);
         }
         close(output_pipe[0]);