diff options
Diffstat (limited to 'legacy/busybox/0001-ash-add-support-for-command_not_found_handle-hook-fu.patch')
| -rw-r--r-- | legacy/busybox/0001-ash-add-support-for-command_not_found_handle-hook-fu.patch | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/legacy/busybox/0001-ash-add-support-for-command_not_found_handle-hook-fu.patch b/legacy/busybox/0001-ash-add-support-for-command_not_found_handle-hook-fu.patch new file mode 100644 index 000000000..929370b9d --- /dev/null +++ b/legacy/busybox/0001-ash-add-support-for-command_not_found_handle-hook-fu.patch @@ -0,0 +1,63 @@ +From 185ba65457e991ebd0f6e64266380df5e11cc489 Mon Sep 17 00:00:00 2001 +From: William Pitcock <nenolod@dereferenced.org> +Date: Thu, 19 Oct 2017 17:24:40 +0000 +Subject: [PATCH 01/16] ash: add support for command_not_found_handle hook + function, like bash + +This implements support for the command_not_found_handle hook function, which is +useful for allowing package managers to suggest packages which could provide the +command. + +Unlike bash, however, we ignore exit codes from the hook function and always return +the correct POSIX error code (EX_NOTFOUND). + +Signed-off-by: William Pitcock <nenolod@dereferenced.org> +--- + shell/ash.c | 24 ++++++++++++++++++++++-- + 1 file changed, 22 insertions(+), 2 deletions(-) + +diff --git a/shell/ash.c b/shell/ash.c +index b73a79975..7ceb91920 100644 +--- a/shell/ash.c ++++ b/shell/ash.c +@@ -132,6 +132,15 @@ + //config: you to run the specified command or builtin, + //config: even when there is a function with the same name. + //config: ++//config:config ASH_COMMAND_NOT_FOUND_HOOK ++//config: bool "command_not_found_handle hook support" ++//config: default y ++//config: depends on ASH || SH_IS_ASH || BASH_IS_ASH ++//config: help ++//config: Enable support for the 'command_not_found_handle' hook function, ++//config: from GNU bash, which allows for alternative command not found ++//config: handling. ++//config: + //config:endif # ash options + + //applet:IF_ASH(APPLET(ash, BB_DIR_BIN, BB_SUID_DROP)) +@@ -13166,8 +13175,19 @@ find_command(char *name, struct cmdentry *entry, int act, const char *path) + /* We failed. If there was an entry for this command, delete it */ + if (cmdp && updatetbl) + delete_cmd_entry(); +- if (act & DO_ERR) +- ash_msg("%s: %s", name, errmsg(e, "not found")); ++ if (act & DO_ERR) { ++#ifdef CONFIG_ASH_COMMAND_NOT_FOUND_HOOK ++#define HOOKFN_NAME "command_not_found_handle" ++ char hookfn_name[] = HOOKFN_NAME; ++ struct tblentry *hookp = cmdlookup(hookfn_name, 0); ++ if (hookp != NULL && hookp->cmdtype == CMDFUNCTION) { ++ evalfun(hookp->param.func, 2, (char *[]){ hookfn_name, name }, 0); ++ entry->cmdtype = CMDUNKNOWN; ++ return; ++ } else ++#endif ++ ash_msg("%s: %s", name, errmsg(e, "not found")); ++ } + entry->cmdtype = CMDUNKNOWN; + return; + +-- +2.16.2 + |