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authorDenys Vlasenko <vda.linux@googlemail.com>2023-07-10 10:52:41 +0200
committerDenys Vlasenko <vda.linux@googlemail.com>2023-07-10 10:53:23 +0200
commit5e0411a7fb510b9aecda0a850c76bdd62c50efa4 (patch)
treed3698f53c76998c940131e18aca0cf5e025c6605 /include
parent6ce1dc2e91398145633ceaff7a6fecc786826277 (diff)
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ash: disable sleep as builtin, closes 15619
Has a few annoying problems: * sleepcmd() -> sleep_main(), the parsing of bad arguments exits the shell. * sleep_for_duration() in sleep_main() has to be interruptible for ^C traps to work, which may be a problem for other users of sleep_for_duration(). * BUT, if sleep_for_duration() is interruptible, then SIGCHLD interrupts it as well (try "/bin/sleep 1 & sleep 10"). * sleep_main() must not allocate anything as ^C in ash longjmp's. (currently, allocations are only on error paths, in message printing). Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'include')
-rw-r--r--include/libbb.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/libbb.h b/include/libbb.h
index 18336da23..640fa3988 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -1513,6 +1513,8 @@ int hush_main(int argc, char** argv) IF_SHELL_HUSH(MAIN_EXTERNALLY_VISIBLE);
1513/* If shell needs them, they exist even if not enabled as applets */ 1513/* If shell needs them, they exist even if not enabled as applets */
1514int echo_main(int argc, char** argv) IF_ECHO(MAIN_EXTERNALLY_VISIBLE); 1514int echo_main(int argc, char** argv) IF_ECHO(MAIN_EXTERNALLY_VISIBLE);
1515int sleep_main(int argc, char **argv) IF_SLEEP(MAIN_EXTERNALLY_VISIBLE); 1515int sleep_main(int argc, char **argv) IF_SLEEP(MAIN_EXTERNALLY_VISIBLE);
1516/* See disabled "config ASH_SLEEP" in ash.c */
1517#define ENABLE_ASH_SLEEP 0
1516int printf_main(int argc, char **argv) IF_PRINTF(MAIN_EXTERNALLY_VISIBLE); 1518int printf_main(int argc, char **argv) IF_PRINTF(MAIN_EXTERNALLY_VISIBLE);
1517int test_main(int argc, char **argv) 1519int test_main(int argc, char **argv)
1518#if ENABLE_TEST || ENABLE_TEST1 || ENABLE_TEST2 1520#if ENABLE_TEST || ENABLE_TEST1 || ENABLE_TEST2