diff options
Diffstat (limited to 'package/busybox/patches/190-ash_performance.patch')
| -rw-r--r-- | package/busybox/patches/190-ash_performance.patch | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/package/busybox/patches/190-ash_performance.patch b/package/busybox/patches/190-ash_performance.patch new file mode 100644 index 0000000000..0931931419 --- /dev/null +++ b/package/busybox/patches/190-ash_performance.patch @@ -0,0 +1,80 @@ + + 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; |