mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-05 18:10:36 +02:00
3606a6b3ad
git-svn-id: svn://svn.openwrt.org/openwrt/branches/buildroot-ng/openwrt@4095 3c298f89-4303-0410-b956-a3cf2f4a3e73
81 lines
1.9 KiB
Diff
81 lines
1.9 KiB
Diff
|
|
Copyright (C) 2006 OpenWrt.org
|
|
|
|
diff -urN busybox.old/shell/ash.c busybox.dev/shell/ash.c
|
|
--- busybox.old/shell/ash.c 2005-11-12 22:39:19.853826250 +0100
|
|
+++ busybox.dev/shell/ash.c 2005-11-12 22:39:42.771258500 +0100
|
|
@@ -1414,6 +1414,13 @@
|
|
|
|
#define NUMBUILTINS (sizeof (builtincmd) / sizeof (struct builtincmd) )
|
|
|
|
+static const char *safe_applets[] = {
|
|
+ "[", "test", "echo", "cat",
|
|
+ "ln", "cp", "touch", "mkdir", "rm",
|
|
+ "cut", "hexdump", "awk", "sort",
|
|
+ "find", "xargs", "ls", "dd",
|
|
+ "chown", "chmod"
|
|
+};
|
|
|
|
|
|
struct cmdentry {
|
|
@@ -2050,6 +2057,19 @@
|
|
static void exitshell(void) __attribute__((__noreturn__));
|
|
static int decode_signal(const char *, int);
|
|
|
|
+
|
|
+static int is_safe_applet(char *name)
|
|
+{
|
|
+ int n = sizeof(safe_applets) / sizeof(char *);
|
|
+ int i;
|
|
+ for (i = 0; i < n; i++)
|
|
+ if (strcmp(safe_applets[i], name) == 0)
|
|
+ return 1;
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+
|
|
/*
|
|
* This routine is called when an error or an interrupt occurs in an
|
|
* interactive shell and control is returned to the main command loop.
|
|
@@ -3680,6 +3700,7 @@
|
|
clearredir(1);
|
|
envp = environment();
|
|
if (strchr(argv[0], '/') != NULL
|
|
+ || is_safe_applet(argv[0])
|
|
#ifdef CONFIG_FEATURE_SH_STANDALONE_SHELL
|
|
|| find_applet_by_name(argv[0])
|
|
#endif
|
|
@@ -3721,6 +3742,18 @@
|
|
tryexec(char *cmd, char **argv, char **envp)
|
|
{
|
|
int repeated = 0;
|
|
+ struct BB_applet *a;
|
|
+ int argc = 0;
|
|
+ char **c;
|
|
+
|
|
+ if(strchr(cmd, '/') == NULL && is_safe_applet(cmd) && (a = find_applet_by_name(cmd)) != NULL) {
|
|
+ c = argv;
|
|
+ while (*c != NULL) {
|
|
+ c++; argc++;
|
|
+ }
|
|
+ bb_applet_name = cmd;
|
|
+ exit(a->main(argc, argv));
|
|
+ }
|
|
#ifdef CONFIG_FEATURE_SH_STANDALONE_SHELL
|
|
int flg_bb = 0;
|
|
char *name = cmd;
|
|
@@ -3919,6 +3952,12 @@
|
|
}
|
|
#endif
|
|
|
|
+ if (is_safe_applet(name)) {
|
|
+ entry->cmdtype = CMDNORMAL;
|
|
+ entry->u.index = -1;
|
|
+ return;
|
|
+ }
|
|
+
|
|
updatetbl = (path == pathval());
|
|
if (!updatetbl) {
|
|
act |= DO_ALTPATH;
|