use user's shell instead of hardwired "/bin/sh" (android needs this)

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 5 insertions, 4 deletions

diff --git a/networking/ifupdown.c b/networking/ifupdown.c
index c7b560bf8..7706a84b7 100644
--- a/networking/ifupdown.c
+++ b/networking/ifupdown.c
@@ -106,6 +106,7 @@ enum {
 struct globals {
         char **my_environ;
         const char *startup_PATH;
+        char *shell;
 } FIX_ALIASING;
 #define G (*(struct globals*)&bb_common_bufsiz1)
 #define INIT_G() do { } while (0)
@@ -986,11 +987,10 @@ static int doit(char *str)
 
                 fflush_all();
                 child = vfork();
-                switch (child) {
-                case -1: /* failure */
+                if (child < 0) /* failure */
                         return 0;
-                case 0: /* child */
-                        execle(DEFAULT_SHELL, DEFAULT_SHELL, "-c", str, (char *) NULL, G.my_environ);
+                if (child == 0) { /* child */
+                        execle(G.shell, G.shell, "-c", str, (char *) NULL, G.my_environ);
                         _exit(127);
                 }
                 safe_waitpid(child, &status, 0);
@@ -1165,6 +1165,7 @@ int ifupdown_main(int argc UNUSED_PARAM, char **argv)
         INIT_G();
 
         G.startup_PATH = getenv("PATH");
+        G.shell = xstrdup(get_shell_name());
 
         cmds = iface_down;
         if (applet_name[2] == 'u') {