[source] Revert "busybox: ash/hush fix for read-builtin command"
LEDE Commits
lede-commits at lists.infradead.org
Wed Aug 23 01:58:24 PDT 2017
jow pushed a commit to source.git, branch master:
https://git.lede-project.org/0168ba2e07e02f75eb3e48b678027aa893f26e9f
commit 0168ba2e07e02f75eb3e48b678027aa893f26e9f
Author: Jo-Philipp Wich <jo at mein.io>
AuthorDate: Wed Aug 23 10:56:53 2017 +0200
Revert "busybox: ash/hush fix for read-builtin command"
Revert this commit as it introduces a patchfile at a wrong location.
Since the patch was never effective, we can assume that this particular
commit was not properly tested.
This reverts commit dde9da46c1586c0bda54e7fa6de05f0fc76e557a.
Signed-off-by: Jo-Philipp Wich <jo at mein.io>
---
...ush-fix-SIGCHLD-interrupting-read-builtin.patch | 147 ---------------------
1 file changed, 147 deletions(-)
diff --git a/package/utils/busybox/501-ash-hush-fix-SIGCHLD-interrupting-read-builtin.patch b/package/utils/busybox/501-ash-hush-fix-SIGCHLD-interrupting-read-builtin.patch
deleted file mode 100644
index 1386dad..0000000
--- a/package/utils/busybox/501-ash-hush-fix-SIGCHLD-interrupting-read-builtin.patch
+++ /dev/null
@@ -1,147 +0,0 @@
-From f5470419404d643070db99d058405b714695b817 Mon Sep 17 00:00:00 2001
-From: Denys Vlasenko <vda.linux at googlemail.com>
-Date: Mon, 22 May 2017 19:34:45 +0200
-Subject: [PATCH] ash,hush: fix SIGCHLD interrupting read builtin
-
-function old new delta
-readcmd 169 217 +48
-shell_builtin_read 1087 1097 +10
-localcmd 366 364 -2
-builtin_read 197 193 -4
-------------------------------------------------------------------------------
-(add/remove: 0/0 grow/shrink: 2/2 up/down: 58/-6) Total: 52 bytes
-
-Signed-off-by: Denys Vlasenko <vda.linux at googlemail.com>
-Signed-off-by: Bastian Bittorf <bb at npl.de>
----
- shell/ash.c | 7 +++++++
- shell/ash_test/ash-read/read_SIGCHLD.right | 2 ++
- shell/ash_test/ash-read/read_SIGCHLD.tests | 4 ++++
- shell/hush.c | 5 ++++-
- shell/hush_test/hush-read/read_SIGCHLD.right | 2 ++
- shell/hush_test/hush-read/read_SIGCHLD.tests | 4 ++++
- shell/shell_common.c | 20 +++++++++++---------
- 7 files changed, 34 insertions(+), 10 deletions(-)
- create mode 100644 shell/ash_test/ash-read/read_SIGCHLD.right
- create mode 100755 shell/ash_test/ash-read/read_SIGCHLD.tests
- create mode 100644 shell/hush_test/hush-read/read_SIGCHLD.right
- create mode 100755 shell/hush_test/hush-read/read_SIGCHLD.tests
-
-diff --git a/shell/ash.c b/shell/ash.c
-index 70ee15e..60c8ffe 100644
---- a/shell/ash.c
-+++ b/shell/ash.c
-@@ -13268,6 +13268,7 @@ readcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
- /* "read -s" needs to save/restore termios, can't allow ^C
- * to jump out of it.
- */
-+ again:
- INT_OFF;
- r = shell_builtin_read(setvar0,
- argptr,
-@@ -13280,6 +13281,12 @@ readcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
- );
- INT_ON;
-
-+ if ((uintptr_t)r == 1 && errno == EINTR) {
-+ /* to get SIGCHLD: sleep 1 & read x; echo $x */
-+ if (pending_sig == 0)
-+ goto again;
-+ }
-+
- if ((uintptr_t)r > 1)
- ash_msg_and_raise_error(r);
-
-diff --git a/shell/ash_test/ash-read/read_SIGCHLD.right b/shell/ash_test/ash-read/read_SIGCHLD.right
-new file mode 100644
-index 0000000..b3dc7ab
---- /dev/null
-+++ b/shell/ash_test/ash-read/read_SIGCHLD.right
-@@ -0,0 +1,2 @@
-+x='Ok'
-+exitcode:0
-diff --git a/shell/ash_test/ash-read/read_SIGCHLD.tests b/shell/ash_test/ash-read/read_SIGCHLD.tests
-new file mode 100755
-index 0000000..c5f673a
---- /dev/null
-+++ b/shell/ash_test/ash-read/read_SIGCHLD.tests
-@@ -0,0 +1,4 @@
-+x=BAD
-+{ sleep 0.4; echo Ok; } | { sleep 0.2 & read x; echo "x='$x'"; }
-+echo "exitcode:$?"
-+
-diff --git a/shell/hush.c b/shell/hush.c
-index e18920f..125463a 100644
---- a/shell/hush.c
-+++ b/shell/hush.c
-@@ -9038,6 +9038,9 @@ static int FAST_FUNC builtin_type(char **argv)
- * - terminates shell (regardless of interactivity);
- * if it has non-empty trap:
- * - executes trap and returns to read;
-+ * SIGCHLD from children:
-+ * - does not interrupt read regardless of interactivity:
-+ * try: sleep 1 & read x; echo $x
- */
- static int FAST_FUNC builtin_read(char **argv)
- {
-@@ -9071,7 +9074,7 @@ static int FAST_FUNC builtin_read(char **argv)
-
- if ((uintptr_t)r == 1 && errno == EINTR) {
- unsigned sig = check_and_run_traps();
-- if (sig && sig != SIGINT)
-+ if (sig != SIGINT)
- goto again;
- }
-
-diff --git a/shell/hush_test/hush-read/read_SIGCHLD.right b/shell/hush_test/hush-read/read_SIGCHLD.right
-new file mode 100644
-index 0000000..b3dc7ab
---- /dev/null
-+++ b/shell/hush_test/hush-read/read_SIGCHLD.right
-@@ -0,0 +1,2 @@
-+x='Ok'
-+exitcode:0
-diff --git a/shell/hush_test/hush-read/read_SIGCHLD.tests b/shell/hush_test/hush-read/read_SIGCHLD.tests
-new file mode 100755
-index 0000000..c5f673a
---- /dev/null
-+++ b/shell/hush_test/hush-read/read_SIGCHLD.tests
-@@ -0,0 +1,4 @@
-+x=BAD
-+{ sleep 0.4; echo Ok; } | { sleep 0.2 & read x; echo "x='$x'"; }
-+echo "exitcode:$?"
-+
-diff --git a/shell/shell_common.c b/shell/shell_common.c
-index fb86e68..03b7d0b 100644
---- a/shell/shell_common.c
-+++ b/shell/shell_common.c
-@@ -204,15 +204,17 @@ shell_builtin_read(void FAST_FUNC (*setvar)(const char *name, const char *val),
- c = buffer[bufpos];
- if (c == '\0')
- continue;
-- if (backslash) {
-- backslash = 0;
-- if (c != '\n')
-- goto put;
-- continue;
-- }
-- if (!(read_flags & BUILTIN_READ_RAW) && c == '\\') {
-- backslash = 1;
-- continue;
-+ if (!(read_flags & BUILTIN_READ_RAW)) {
-+ if (backslash) {
-+ backslash = 0;
-+ if (c != '\n')
-+ goto put;
-+ continue;
-+ }
-+ if (c == '\\') {
-+ backslash = 1;
-+ continue;
-+ }
- }
- if (c == '\n')
- break;
---
-1.9.1
-
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