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ash: sleep builtin with no arguments should not exit
function old new delta sleep_main 116 143 +27 .rodata 105245 105268 +23 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 2/0 up/down: 50/0) Total: 50 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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@ -65,15 +65,28 @@ int sleep_main(int argc UNUSED_PARAM, char **argv)
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{
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duration_t duration;
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/* Note: sleep_main may be directly called from ash as a builtin.
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* This brings some complications:
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* + we can't use xfunc here
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* + we can't use bb_show_usage
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* + applet_name can be the name of the shell
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*/
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++argv;
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if (!*argv)
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if (!*argv) {
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/* Without this, bare "sleep" in ash shows _ash_ --help */
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if (ENABLE_ASH_SLEEP && applet_name[0] != 's') {
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bb_simple_error_msg("sleep: missing operand");
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return EXIT_FAILURE;
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}
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bb_show_usage();
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}
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/* GNU sleep accepts "inf", "INF", "infinity" and "INFINITY" */
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if (strncasecmp(argv[0], "inf", 3) == 0)
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for (;;)
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sleep(INT_MAX);
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//FIXME: in ash, "sleep 123qwerty" as a builtin aborts the shell
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#if ENABLE_FEATURE_FANCY_SLEEP
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duration = 0;
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do {
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@ -85,8 +85,8 @@
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* This brings some complications:
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*
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* + we can't use xfunc here
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* + we can't use applet_name
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* + we can't use bb_show_usage
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* + applet_name can be the name of the shell
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* (doesn't apply for killall[5], still should be careful b/c NOFORK)
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*
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* kill %n gets translated into kill ' -<process group>' by shell (note space!)
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