*: fix various kinds of damage to letter 'c' in Arkadiusz Mickiewicz' surname.
chrt,taskset,dc,eject: shrink crontab: call "vi" with just name, no path watchdog: intercept all fatal signals function old new delta xstrtoull_range - 35 +35 static.sg_commands - 18 +18 packed_usage 23698 23712 +14 watchdog_main 148 151 +3 crontab_main 637 638 +1 base 1 - -1 static.ps 4 - -4 pointer 4 - -4 stack_machine 99 92 -7 run_command 273 260 -13 eject_main 360 343 -17 static.C 30 12 -18 ptok 61 38 -23 xstrtol_range 27 - -27 get_token 35 - -35 taskset_main 586 550 -36 chrt_main 411 372 -39 dc_main 158 117 -41 time_main 1127 1037 -90 ------------------------------------------------------------------------------ (add/remove: 2/5 grow/shrink: 3/9 up/down: 71/-355) Total: -284 bytes text data bss dec hex filename 793680 662 7420 801762 c3be2 busybox_old 793327 662 7412 801401 c3a79 busybox_unstripped
This commit is contained in:
Denis Vlasenko
parent
d25c33f186
commit
b44c790e41
@ -145,7 +145,7 @@ PID (process ID), PGID (process group ID) and SID (session ID)
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of processes. With a shell that does not know about job control,
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like <code>ash</code>, each of its children will be in the same session
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and have the same process group as the shell. With a shell that knows
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about job control, like <code>bash</code>, the processes of one pipeline. like
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about job control, like <code>bash</code>, the processes of one pipeline, like
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</p><blockquote>
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<pre>% cat paper | ideal | pic | tbl | eqn | ditroff > out
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</pre>
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@ -227,7 +227,7 @@ controlling tty. If there is none, this returns a random value
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larger than 1 that is not a process group ID.
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</p><p>A process can set the foreground process group in its session
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using <code>tcsetpgrp(fd,pgrp)</code>, where <code>fd</code> refers to its
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controlling tty, and <code>pgrp</code> is a process group in the
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controlling tty, and <code>pgrp</code> is a process group in
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its session, and this session still is associated to the controlling
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tty of the calling process.
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</p><p>How does one get <code>fd</code>? By definition, <code>/dev/tty</code>
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@ -707,7 +707,7 @@ int run_nofork_applet_prime(struct nofork_save_area *old, int applet_no, char **
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*
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* forkexit_or_rexec(argv) = bare-bones "fork + parent exits" on MMU,
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* "vfork + re-exec ourself" on NOMMU. No fd redirection, no setsid().
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* Currently used for openvt. On MMU ignores argv.
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* Currently used for openvt and setsid. On MMU ignores argv.
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*
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* Helper for network daemons in foreground mode:
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*
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@ -728,7 +728,7 @@ enum {
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# define bb_daemonize(flags) bb_daemonize_or_rexec(flags, bogus)
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#else
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void re_exec(char **argv) ATTRIBUTE_NORETURN;
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void forkexit_or_rexec(char **argv);
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void forkexit_or_rexec(char **argv) ATTRIBUTE_NORETURN;
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extern bool re_execed;
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int BUG_fork_is_unavailable_on_nommu(void);
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int BUG_daemon_is_unavailable_on_nommu(void);
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@ -3839,7 +3839,7 @@
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"$ tar -cf /tmp/tarball.tar /usr/local\n"
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#define taskset_trivial_usage \
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"[OPTIONS] [mask] [pid | command [arg]...]"
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"[-p] [mask] [pid | command [arg]...]"
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#define taskset_full_usage \
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"Set or get CPU affinity\n" \
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"\nOptions:" \
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@ -6,14 +6,13 @@
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*
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* option added by Eric Rasmussen <ear@usfirst.org> - 12/28/95
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*
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* 1999-02-22 Arkadiusz Miśkiewicz <misiek@misiek.eu.org>
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* 1999-02-22 Arkadiusz Mickiewicz <misiek@misiek.eu.org>
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* - added Native Language Support
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*
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* 1999-05-05 Thorsten Kranzkowski <dl8bcu@gmx.net>
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* - enable hardware flow control before displaying /etc/issue
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*
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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*
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*/
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#include "libbb.h"
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@ -13,8 +13,8 @@
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#warning your system may be foobared
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#endif
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static const struct {
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const int policy;
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const char const name[12];
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int policy;
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char name[12];
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} policies[] = {
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{SCHED_OTHER, "SCHED_OTHER"},
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{SCHED_FIFO, "SCHED_FIFO"},
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@ -42,83 +42,83 @@ static void show_min_max(int pol)
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#define OPT_o (1<<4)
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int chrt_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int chrt_main(int argc, char **argv)
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int chrt_main(int argc ATTRIBUTE_UNUSED, char **argv)
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{
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pid_t pid = 0;
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unsigned opt;
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struct sched_param sp;
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char *p_opt = NULL, *priority = NULL;
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const char *state = "current\0new";
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int prio = 0, policy = SCHED_RR;
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char *pid_str;
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char *priority = priority; /* for compiler */
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const char *current_new;
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int policy = SCHED_RR;
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opt_complementary = "r--fo:f--ro:r--fo"; /* only one policy accepted */
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opt = getopt32(argv, "+mp:rfo", &p_opt);
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/* at least 1 arg; only one policy accepted */
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opt_complementary = "-1:r--fo:f--ro:r--fo";
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opt = getopt32(argv, "+mprfo");
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if (opt & OPT_r)
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policy = SCHED_RR;
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if (opt & OPT_f)
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policy = SCHED_FIFO;
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if (opt & OPT_o)
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policy = SCHED_OTHER;
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if (opt & OPT_m) { /* print min/max */
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show_min_max(SCHED_FIFO);
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show_min_max(SCHED_RR);
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show_min_max(SCHED_OTHER);
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fflush_stdout_and_exit(EXIT_SUCCESS);
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}
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argv += optind;
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if (opt & OPT_p) {
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if (argc == optind+1) { /* -p <priority> <pid> */
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priority = p_opt;
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p_opt = argv[optind];
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pid_str = *argv++;
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if (*argv) { /* "-p <priority> <pid> [...]" */
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priority = pid_str;
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pid_str = *argv;
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}
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argv += optind; /* me -p <arg> */
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pid = xatoul_range(p_opt, 1, ULONG_MAX); /* -p <pid> */
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/* else "-p <pid>", and *argv == NULL */
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pid = xatoul_range(pid_str, 1, ((unsigned)(pid_t)ULONG_MAX) >> 1);
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} else {
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argv += optind; /* me -p <arg> */
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priority = *argv;
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}
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if (priority) {
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/* from the manpage of sched_getscheduler:
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[...] sched_priority can have a value
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in the range 0 to 99.
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[...] SCHED_OTHER or SCHED_BATCH must be assigned
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the static priority 0. [...] SCHED_FIFO or
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SCHED_RR can have a static priority in the range 1 to 99.
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*/
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prio = xstrtol_range(priority, 0, policy == SCHED_OTHER
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? 0 : 1, 99);
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priority = *argv++;
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if (!*argv)
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bb_show_usage();
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}
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current_new = "current\0new";
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if (opt & OPT_p) {
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int pol = 0;
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print_rt_info:
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int pol;
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print_rt_info:
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pol = sched_getscheduler(pid);
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if (pol < 0)
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bb_perror_msg_and_die("failed to %cet pid %d's policy", 'g', pid);
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bb_perror_msg_and_die("can't %cet pid %d's policy", 'g', pid);
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printf("pid %d's %s scheduling policy: %s\n",
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pid, state, policies[pol].name);
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pid, current_new, policies[pol].name);
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if (sched_getparam(pid, &sp))
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bb_perror_msg_and_die("failed to get pid %d's attributes", pid);
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bb_perror_msg_and_die("can't get pid %d's attributes", pid);
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printf("pid %d's %s scheduling priority: %d\n",
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pid, state, sp.sched_priority);
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if (!*argv) /* no new prio given or we did print already, done. */
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pid, current_new, sp.sched_priority);
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if (!*argv) {
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/* Either it was just "-p <pid>",
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* or it was "-p <priority> <pid>" and we came here
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* for the second time (see goto below) */
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return EXIT_SUCCESS;
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}
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*argv = NULL;
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current_new += 8;
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}
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sp.sched_priority = prio;
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/* from the manpage of sched_getscheduler:
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[...] sched_priority can have a value in the range 0 to 99.
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[...] SCHED_OTHER or SCHED_BATCH must be assigned static priority 0.
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[...] SCHED_FIFO or SCHED_RR can have static priority in 1..99 range.
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*/
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sp.sched_priority = xstrtou_range(priority, 0, policy != SCHED_OTHER ? 1 : 0, 99);
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if (sched_setscheduler(pid, policy, &sp) < 0)
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bb_perror_msg_and_die("failed to %cet pid %d's policy", 's', pid);
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if (opt & OPT_p) {
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state += 8;
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++argv;
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bb_perror_msg_and_die("can't %cet pid %d's policy", 's', pid);
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if (!*argv) /* "-p <priority> <pid> [...]" */
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goto print_rt_info;
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}
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++argv;
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BB_EXECVP(*argv, argv);
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bb_simple_perror_msg_and_die(*argv);
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}
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#undef OPT_p
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#undef OPT_r
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#undef OPT_f
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#undef OPT_o
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#undef OPT_m
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@ -158,7 +158,7 @@ static void crondlog(const char *ctl, ...)
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}
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int crond_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int crond_main(int ac ATTRIBUTE_UNUSED, char **av)
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int crond_main(int argc ATTRIBUTE_UNUSED, char **argv)
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{
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unsigned opt;
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@ -167,7 +167,7 @@ int crond_main(int ac ATTRIBUTE_UNUSED, char **av)
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/* "-b after -f is ignored", and so on for every pair a-b */
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opt_complementary = "f-b:b-f:S-L:L-S" USE_DEBUG_CROND_OPTION(":d-l")
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":l+:d+"; /* -l and -d have numeric param */
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opt = getopt32(av, "l:L:fbSc:" USE_DEBUG_CROND_OPTION("d:"),
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opt = getopt32(argv, "l:L:fbSc:" USE_DEBUG_CROND_OPTION("d:"),
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&LogLevel, &LogFile, &CDir
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USE_DEBUG_CROND_OPTION(,&LogLevel));
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/* both -d N and -l N set the same variable: LogLevel */
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@ -18,9 +18,6 @@
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#ifndef CRONUPDATE
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#define CRONUPDATE "cron.update"
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#endif
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#ifndef PATH_VI
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#define PATH_VI "/bin/vi" /* location of vi */
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#endif
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static void change_user(const struct passwd *pas)
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{
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@ -56,7 +53,7 @@ static void edit_file(const struct passwd *pas, const char *file)
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if (!ptr) {
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ptr = getenv("EDITOR");
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if (!ptr)
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ptr = PATH_VI;
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ptr = "vi";
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}
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BB_EXECLP(ptr, ptr, file, NULL);
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@ -181,14 +178,16 @@ int crontab_main(int argc ATTRIBUTE_UNUSED, char **argv)
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case OPT_e: /* Edit */
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tmp_fname = xasprintf("%s.%u", crontab_dir, (unsigned)getpid());
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fd = xopen3(tmp_fname, O_RDWR|O_CREAT|O_TRUNC|O_EXCL, 0600);
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/* No O_EXCL: we don't want to be stuck if earlier crontabs
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* were killed, leaving stale temp file behind */
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fd = xopen3(tmp_fname, O_RDWR|O_CREAT|O_TRUNC, 0600);
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xmove_fd(fd, STDIN_FILENO);
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fchown(STDIN_FILENO, pas->pw_uid, pas->pw_gid);
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fd = open(pas->pw_name, O_RDONLY);
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if (fd >= 0) {
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bb_copyfd_eof(fd, STDIN_FILENO);
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close(fd);
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}
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fchown(STDIN_FILENO, pas->pw_uid, pas->pw_gid);
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edit_file(pas, tmp_fname);
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xlseek(STDIN_FILENO, 0, SEEK_SET);
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/* fall through */
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@ -8,11 +8,18 @@
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/* Tiny RPN calculator, because "expr" didn't give me bitwise operations. */
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enum { STACK_SIZE = COMMON_BUFSIZE / sizeof(double) };
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#define stack ((double*)&bb_common_bufsiz1)
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static unsigned int pointer;
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static unsigned char base;
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struct globals {
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unsigned pointer;
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unsigned base;
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double stack[1];
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};
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enum { STACK_SIZE = (COMMON_BUFSIZE - offsetof(struct globals, stack)) / sizeof(double) };
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#define G (*(struct globals*)&bb_common_bufsiz1)
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#define pointer (G.pointer )
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#define base (G.base )
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#define stack (G.stack )
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static void push(double a)
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{
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@ -61,34 +68,34 @@ static void divide(void)
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static void mod(void)
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{
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unsigned int d = pop();
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unsigned d = pop();
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push((unsigned int) pop() % d);
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push((unsigned) pop() % d);
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}
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static void and(void)
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{
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push((unsigned int) pop() & (unsigned int) pop());
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push((unsigned) pop() & (unsigned) pop());
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}
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static void or(void)
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{
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push((unsigned int) pop() | (unsigned int) pop());
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push((unsigned) pop() | (unsigned) pop());
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}
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static void eor(void)
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{
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push((unsigned int) pop() ^ (unsigned int) pop());
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push((unsigned) pop() ^ (unsigned) pop());
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}
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static void not(void)
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{
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push(~(unsigned int) pop());
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push(~(unsigned) pop());
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}
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static void set_output_base(void)
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{
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base = (unsigned char)pop();
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base = (unsigned)pop();
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if ((base != 10) && (base != 16)) {
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bb_error_msg("error, base %d is not supported", base);
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base = 10;
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@ -98,14 +105,14 @@ static void set_output_base(void)
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static void print_base(double print)
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{
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if (base == 16)
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printf("%x\n", (unsigned int)print);
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printf("%x\n", (unsigned)print);
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else
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printf("%g\n", print);
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}
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|
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static void print_stack_no_pop(void)
|
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{
|
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unsigned int i = pointer;
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unsigned i = pointer;
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while (i)
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print_base(stack[--i]);
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}
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@ -142,12 +149,12 @@ static const struct op operators[] = {
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{"p", print_no_pop},
|
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{"f", print_stack_no_pop},
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{"o", set_output_base},
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{"", 0}
|
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{ /* zero filled */ }
|
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};
|
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|
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static void stack_machine(const char *argument)
|
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{
|
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char *endPointer = 0;
|
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char *endPointer;
|
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double d;
|
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const struct op *o = operators;
|
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|
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@ -176,54 +183,39 @@ static void stack_machine(const char *argument)
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*/
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static char *get_token(char **buffer)
|
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{
|
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char *start = NULL;
|
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char *current;
|
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|
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current = skip_whitespace(*buffer);
|
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if (*current != 0) {
|
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start = current;
|
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current = skip_non_whitespace(current);
|
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*buffer = current;
|
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char *current = skip_whitespace(*buffer);
|
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if (*current != '\0') {
|
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*buffer = skip_non_whitespace(current);
|
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return current;
|
||||
}
|
||||
return start;
|
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}
|
||||
|
||||
/* In Perl one might say, scalar m|\s*(\S+)\s*|g */
|
||||
static int number_of_tokens(char *buffer)
|
||||
{
|
||||
int i = 0;
|
||||
char *b = buffer;
|
||||
while (get_token(&b)) { i++; }
|
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return i;
|
||||
return NULL;
|
||||
}
|
||||
|
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int dc_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
||||
int dc_main(int argc, char **argv)
|
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int dc_main(int argc ATTRIBUTE_UNUSED, char **argv)
|
||||
{
|
||||
/* take stuff from stdin if no args are given */
|
||||
if (argc <= 1) {
|
||||
int i, len;
|
||||
char *line = NULL;
|
||||
char *cursor = NULL;
|
||||
char *token = NULL;
|
||||
while ((line = xmalloc_getline(stdin))) {
|
||||
argv++;
|
||||
if (!argv[0]) {
|
||||
/* take stuff from stdin if no args are given */
|
||||
char *line;
|
||||
char *cursor;
|
||||
char *token;
|
||||
while ((line = xmalloc_getline(stdin)) != NULL) {
|
||||
cursor = line;
|
||||
len = number_of_tokens(line);
|
||||
for (i = 0; i < len; i++) {
|
||||
while (1) {
|
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token = get_token(&cursor);
|
||||
*cursor++ = 0;
|
||||
if (!token) break;
|
||||
*cursor++ = '\0';
|
||||
stack_machine(token);
|
||||
}
|
||||
free(line);
|
||||
}
|
||||
} else {
|
||||
if (*argv[1] == '-')
|
||||
if (argv[0][0] == '-')
|
||||
bb_show_usage();
|
||||
while (argc >= 2) {
|
||||
stack_machine(argv[1]);
|
||||
argv++;
|
||||
argc--;
|
||||
}
|
||||
do {
|
||||
stack_machine(*argv);
|
||||
} while (*++argv);
|
||||
}
|
||||
return EXIT_SUCCESS;
|
||||
}
|
||||
|
||||
@ -22,68 +22,71 @@
|
||||
/* drive status possibilities returned by CDROM_DRIVE_STATUS ioctl */
|
||||
#define CDS_TRAY_OPEN 2
|
||||
|
||||
#define FLAG_CLOSE 1
|
||||
#define FLAG_SMART 2
|
||||
|
||||
#define dev_fd 3
|
||||
|
||||
/* Code taken from the original eject (http://eject.sourceforge.net/),
|
||||
* refactored it a bit for busybox (ne-bb@nicoerfurth.de) */
|
||||
#define FLAG_SCSI 4
|
||||
|
||||
#include <scsi/sg.h>
|
||||
#include <scsi/scsi.h>
|
||||
static void eject_scsi(const int fd, const char * const dev)
|
||||
|
||||
static void eject_scsi(const char *dev)
|
||||
{
|
||||
int i;
|
||||
unsigned char sense_buffer[32];
|
||||
unsigned char inqBuff[2];
|
||||
sg_io_hdr_t io_hdr;
|
||||
char sg_commands[3][6] = {
|
||||
{ALLOW_MEDIUM_REMOVAL, 0, 0, 0, 0, 0},
|
||||
{START_STOP, 0, 0, 0, 1, 0},
|
||||
{START_STOP, 0, 0, 0, 2, 0}
|
||||
};
|
||||
static const char sg_commands[3][6] = {
|
||||
{ ALLOW_MEDIUM_REMOVAL, 0, 0, 0, 0, 0 },
|
||||
{ START_STOP, 0, 0, 0, 1, 0 },
|
||||
{ START_STOP, 0, 0, 0, 2, 0 }
|
||||
};
|
||||
|
||||
if ((ioctl(fd, SG_GET_VERSION_NUM, &i) < 0) || (i < 30000))
|
||||
bb_error_msg_and_die("not an sg device or old sg driver");
|
||||
int i;
|
||||
unsigned char sense_buffer[32];
|
||||
unsigned char inqBuff[2];
|
||||
sg_io_hdr_t io_hdr;
|
||||
|
||||
memset(&io_hdr, 0, sizeof(sg_io_hdr_t));
|
||||
io_hdr.interface_id = 'S';
|
||||
io_hdr.cmd_len = 6;
|
||||
io_hdr.mx_sb_len = sizeof(sense_buffer);
|
||||
io_hdr.dxfer_direction = SG_DXFER_NONE;
|
||||
/* io_hdr.dxfer_len = 0; */
|
||||
io_hdr.dxferp = inqBuff;
|
||||
io_hdr.sbp = sense_buffer;
|
||||
io_hdr.timeout = 2000;
|
||||
if ((ioctl(dev_fd, SG_GET_VERSION_NUM, &i) < 0) || (i < 30000))
|
||||
bb_error_msg_and_die("not a sg device or old sg driver");
|
||||
|
||||
for (i=0; i < 3; i++) {
|
||||
io_hdr.cmdp = sg_commands[i];
|
||||
ioctl_or_perror_and_die(fd, SG_IO, (void *)&io_hdr, "%s", dev);
|
||||
}
|
||||
memset(&io_hdr, 0, sizeof(sg_io_hdr_t));
|
||||
io_hdr.interface_id = 'S';
|
||||
io_hdr.cmd_len = 6;
|
||||
io_hdr.mx_sb_len = sizeof(sense_buffer);
|
||||
io_hdr.dxfer_direction = SG_DXFER_NONE;
|
||||
/* io_hdr.dxfer_len = 0; */
|
||||
io_hdr.dxferp = inqBuff;
|
||||
io_hdr.sbp = sense_buffer;
|
||||
io_hdr.timeout = 2000;
|
||||
|
||||
/* force kernel to reread partition table when new disc inserted */
|
||||
ioctl(fd, BLKRRPART);
|
||||
for (i = 0; i < 3; i++) {
|
||||
io_hdr.cmdp = (char*)sg_commands[i];
|
||||
ioctl_or_perror_and_die(dev_fd, SG_IO, (void *)&io_hdr, "%s", dev);
|
||||
}
|
||||
|
||||
/* force kernel to reread partition table when new disc is inserted */
|
||||
ioctl(dev_fd, BLKRRPART);
|
||||
}
|
||||
|
||||
static void eject_cdrom(const int fd, const unsigned long flags,
|
||||
const char * const dev)
|
||||
#define FLAG_CLOSE 1
|
||||
#define FLAG_SMART 2
|
||||
#define FLAG_SCSI 4
|
||||
|
||||
static void eject_cdrom(unsigned flags, const char *dev)
|
||||
{
|
||||
int cmd = CDROMEJECT;
|
||||
|
||||
if (flags & FLAG_CLOSE
|
||||
|| (flags & FLAG_SMART && ioctl(fd, CDROM_DRIVE_STATUS) == CDS_TRAY_OPEN))
|
||||
|| (flags & FLAG_SMART && ioctl(dev_fd, CDROM_DRIVE_STATUS) == CDS_TRAY_OPEN)
|
||||
) {
|
||||
cmd = CDROMCLOSETRAY;
|
||||
}
|
||||
|
||||
return ioctl_or_perror_and_die(fd, cmd, NULL, "%s", dev);
|
||||
ioctl_or_perror_and_die(dev_fd, cmd, NULL, "%s", dev);
|
||||
}
|
||||
|
||||
int eject_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
||||
int eject_main(int argc ATTRIBUTE_UNUSED, char **argv)
|
||||
{
|
||||
unsigned long flags;
|
||||
unsigned flags;
|
||||
const char *device;
|
||||
int dev;
|
||||
|
||||
opt_complementary = "?1:t--T:T--t";
|
||||
flags = getopt32(argv, "tT" USE_FEATURE_EJECT_SCSI("s"));
|
||||
@ -96,18 +99,18 @@ int eject_main(int argc ATTRIBUTE_UNUSED, char **argv)
|
||||
This works equally well (or better):
|
||||
#!/bin/sh
|
||||
umount /dev/cdrom
|
||||
eject
|
||||
eject /dev/cdrom
|
||||
*/
|
||||
|
||||
dev = xopen(device, O_RDONLY|O_NONBLOCK);
|
||||
xmove_fd(xopen(device, O_RDONLY|O_NONBLOCK), dev_fd);
|
||||
|
||||
if (ENABLE_FEATURE_EJECT_SCSI && (flags & FLAG_SCSI))
|
||||
eject_scsi(dev, device);
|
||||
eject_scsi(device);
|
||||
else
|
||||
eject_cdrom(dev, flags, device);
|
||||
eject_cdrom(flags, device);
|
||||
|
||||
if (ENABLE_FEATURE_CLEAN_UP)
|
||||
close(dev);
|
||||
close(dev_fd);
|
||||
|
||||
return EXIT_SUCCESS;
|
||||
}
|
||||
|
||||
@ -14,7 +14,7 @@
|
||||
# define SHUTDOWN_TIME 254
|
||||
#endif
|
||||
|
||||
/* Grr... utmp char[] members do not have to be nul-terminated.
|
||||
/* Grr... utmp char[] members do not have to be nul-terminated.
|
||||
* Do what we can while still keeping this reasonably small.
|
||||
* Note: We are assuming the ut_id[] size is fixed at 4. */
|
||||
|
||||
|
||||
@ -4,7 +4,7 @@
|
||||
* Rick Sladkey <jrs@world.std.com>
|
||||
* In the public domain.
|
||||
*
|
||||
* 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@pld.ORG.PL>
|
||||
* 1999-02-22 Arkadiusz Mickiewicz <misiek@pld.ORG.PL>
|
||||
* - added Native Language Support
|
||||
*
|
||||
* 2001-01-18 John Fremlin <vii@penguinpowered.com>
|
||||
@ -17,12 +17,14 @@
|
||||
#include "libbb.h"
|
||||
|
||||
int setsid_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
||||
int setsid_main(int argc, char **argv)
|
||||
int setsid_main(int argc ATTRIBUTE_UNUSED, char **argv)
|
||||
{
|
||||
if (argc < 2)
|
||||
if (!argv[1])
|
||||
bb_show_usage();
|
||||
|
||||
/* Comment why is this necessary? */
|
||||
/* setsid() is allowed only when we are not a process group leader.
|
||||
* Otherwise our PID serves as PGID of some existing process group
|
||||
* and cannot be used as PGID of a new process group. */
|
||||
if (getpgrp() == getpid())
|
||||
forkexit_or_rexec(argv);
|
||||
|
||||
|
||||
@ -39,61 +39,71 @@ static char *__from_cpuset(cpu_set_t *mask)
|
||||
#define from_cpuset(mask) (*(unsigned*)(void*)&(mask))
|
||||
#endif
|
||||
|
||||
#define OPT_p 1
|
||||
|
||||
int taskset_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
||||
int taskset_main(int argc, char **argv)
|
||||
int taskset_main(int argc ATTRIBUTE_UNUSED, char **argv)
|
||||
{
|
||||
cpu_set_t mask, new_mask;
|
||||
cpu_set_t mask;
|
||||
pid_t pid = 0;
|
||||
unsigned opt;
|
||||
const char *state = "current\0new";
|
||||
char *p_opt = NULL, *aff = NULL;
|
||||
unsigned opt_p;
|
||||
const char *current_new;
|
||||
char *pid_str;
|
||||
char *aff = aff; /* for compiler */
|
||||
|
||||
opt = getopt32(argv, "+p:", &p_opt);
|
||||
opt_complementary = "-1"; /* at least 1 arg */
|
||||
opt_p = getopt32(argv, "+p");
|
||||
argv += optind;
|
||||
|
||||
if (opt & OPT_p) {
|
||||
if (argc == optind+1) { /* -p <aff> <pid> */
|
||||
aff = p_opt;
|
||||
p_opt = argv[optind];
|
||||
}
|
||||
argv += optind; /* me -p <arg> */
|
||||
pid = xatoul_range(p_opt, 1, ULONG_MAX); /* -p <pid> */
|
||||
} else
|
||||
aff = *++argv; /* <aff> <cmd...> */
|
||||
if (aff) {
|
||||
unsigned i = 0;
|
||||
unsigned long l = xstrtol_range(aff, 0, 1, LONG_MAX);
|
||||
|
||||
CPU_ZERO(&new_mask);
|
||||
while (i < CPU_SETSIZE && l >= (1<<i)) {
|
||||
if ((1<<i) & l)
|
||||
CPU_SET(i, &new_mask);
|
||||
++i;
|
||||
if (opt_p) {
|
||||
pid_str = *argv++;
|
||||
if (*argv) { /* "-p <aff> <pid> ...rest.is.ignored..." */
|
||||
aff = pid_str;
|
||||
pid_str = *argv; /* NB: *argv != NULL in this case */
|
||||
}
|
||||
/* else it was just "-p <pid>", and *argv == NULL */
|
||||
pid = xatoul_range(pid_str, 1, ((unsigned)(pid_t)ULONG_MAX) >> 1);
|
||||
} else {
|
||||
aff = *argv++; /* <aff> <cmd...> */
|
||||
if (!*argv)
|
||||
bb_show_usage();
|
||||
}
|
||||
|
||||
if (opt & OPT_p) {
|
||||
current_new = "current\0new";
|
||||
if (opt_p) {
|
||||
print_aff:
|
||||
if (sched_getaffinity(pid, sizeof(mask), &mask) < 0)
|
||||
bb_perror_msg_and_die("failed to %cet pid %d's affinity", 'g', pid);
|
||||
bb_perror_msg_and_die("can't %cet pid %d's affinity", 'g', pid);
|
||||
printf("pid %d's %s affinity mask: "TASKSET_PRINTF_MASK"\n",
|
||||
pid, state, from_cpuset(mask));
|
||||
if (!*argv) /* no new affinity given or we did print already, done. */
|
||||
pid, current_new, from_cpuset(mask));
|
||||
if (!*argv) {
|
||||
/* Either it was just "-p <pid>",
|
||||
* or it was "-p <aff> <pid>" and we came here
|
||||
* for the second time (see goto below) */
|
||||
return EXIT_SUCCESS;
|
||||
}
|
||||
*argv = NULL;
|
||||
current_new += 8; /* "new" */
|
||||
}
|
||||
|
||||
if (sched_setaffinity(pid, sizeof(new_mask), &new_mask))
|
||||
bb_perror_msg_and_die("failed to %cet pid %d's affinity", 's', pid);
|
||||
if (opt & OPT_p) {
|
||||
state += 8;
|
||||
++argv;
|
||||
goto print_aff;
|
||||
{ /* Affinity was specified, translate it into cpu_set_t */
|
||||
unsigned i;
|
||||
/* Do not allow zero mask: */
|
||||
unsigned long long m = xstrtoull_range(aff, 0, 1, ULLONG_MAX);
|
||||
CPU_ZERO(&mask);
|
||||
for (i = 0; i < CPU_SETSIZE; i++) {
|
||||
unsigned long long bit = (1ULL << i);
|
||||
if (bit & m)
|
||||
CPU_SET(i, &mask);
|
||||
}
|
||||
}
|
||||
++argv;
|
||||
|
||||
/* Set pid's or our own (pid==0) affinity */
|
||||
if (sched_setaffinity(pid, sizeof(mask), &mask))
|
||||
bb_perror_msg_and_die("can't %cet pid %d's affinity", 's', pid);
|
||||
|
||||
if (!*argv) /* "-p <aff> <pid> [...ignored...]" */
|
||||
goto print_aff; /* print new affinity and exit */
|
||||
|
||||
BB_EXECVP(*argv, argv);
|
||||
bb_simple_perror_msg_and_die(*argv);
|
||||
}
|
||||
#undef OPT_p
|
||||
#undef TASKSET_PRINTF_MASK
|
||||
#undef from_cpuset
|
||||
|
||||
116
miscutils/time.c
116
miscutils/time.c
@ -1,5 +1,5 @@
|
||||
/* vi: set sw=4 ts=4: */
|
||||
/* `time' utility to display resource usage of processes.
|
||||
/* 'time' utility to display resource usage of processes.
|
||||
Copyright (C) 1990, 91, 92, 93, 96 Free Software Foundation, Inc.
|
||||
|
||||
Licensed under GPL version 2, see file LICENSE in this tarball for details.
|
||||
@ -28,7 +28,6 @@ static const char default_format[] ALIGN1 = "real\t%E\nuser\t%u\nsys\t%T";
|
||||
/* The output format for the -p option .*/
|
||||
static const char posix_format[] ALIGN1 = "real %e\nuser %U\nsys %S";
|
||||
|
||||
|
||||
/* Format string for printing all statistics verbosely.
|
||||
Keep this output to 24 lines so users on terminals can see it all.*/
|
||||
static const char long_format[] ALIGN1 =
|
||||
@ -56,35 +55,31 @@ static const char long_format[] ALIGN1 =
|
||||
"\tPage size (bytes): %Z\n"
|
||||
"\tExit status: %x";
|
||||
|
||||
|
||||
/* Wait for and fill in data on child process PID.
|
||||
Return 0 on error, 1 if ok. */
|
||||
|
||||
/* pid_t is short on BSDI, so don't try to promote it. */
|
||||
static int resuse_end(pid_t pid, resource_t *resp)
|
||||
static void resuse_end(pid_t pid, resource_t *resp)
|
||||
{
|
||||
int status;
|
||||
pid_t caught;
|
||||
|
||||
/* Ignore signals, but don't ignore the children. When wait3
|
||||
returns the child process, set the time the command finished. */
|
||||
while ((caught = wait3(&status, 0, &resp->ru)) != pid) {
|
||||
if (caught == -1 && errno != EINTR)
|
||||
return 0;
|
||||
while ((caught = wait3(&resp->waitstatus, 0, &resp->ru)) != pid) {
|
||||
if (caught == -1 && errno != EINTR) {
|
||||
bb_perror_msg("wait");
|
||||
return;
|
||||
}
|
||||
}
|
||||
resp->elapsed_ms = (monotonic_us() / 1000) - resp->elapsed_ms;
|
||||
resp->waitstatus = status;
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Print ARGV, with each entry in ARGV separated by FILLER. */
|
||||
static void printargv(char *const *argv, const char *filler)
|
||||
static void printargv(char *const *argv)
|
||||
{
|
||||
fputs(*argv, stdout);
|
||||
while (*++argv) {
|
||||
fputs(filler, stdout);
|
||||
fputs(*argv, stdout);
|
||||
}
|
||||
const char *fmt = " %s" + 1;
|
||||
do {
|
||||
printf(fmt, *argv);
|
||||
fmt = " %s";
|
||||
} while (*++argv);
|
||||
}
|
||||
|
||||
/* Return the number of kilobytes corresponding to a number of pages PAGES.
|
||||
@ -94,24 +89,18 @@ static void printargv(char *const *argv, const char *filler)
|
||||
This is funky since the pagesize could be less than 1K.
|
||||
Note: Some machines express getrusage statistics in terms of K,
|
||||
others in terms of pages. */
|
||||
|
||||
static unsigned long ptok(unsigned long pages)
|
||||
static unsigned long ptok(unsigned pagesize, unsigned long pages)
|
||||
{
|
||||
static unsigned long ps;
|
||||
unsigned long tmp;
|
||||
|
||||
/* Initialization. */
|
||||
if (ps == 0)
|
||||
ps = getpagesize();
|
||||
|
||||
/* Conversion. */
|
||||
if (pages > (LONG_MAX / ps)) { /* Could overflow. */
|
||||
tmp = pages / 1024; /* Smaller first, */
|
||||
return tmp * ps; /* then larger. */
|
||||
if (pages > (LONG_MAX / pagesize)) { /* Could overflow. */
|
||||
tmp = pages / 1024; /* Smaller first, */
|
||||
return tmp * pagesize; /* then larger. */
|
||||
}
|
||||
/* Could underflow. */
|
||||
tmp = pages * ps; /* Larger first, */
|
||||
return tmp / 1024; /* then smaller. */
|
||||
tmp = pages * pagesize; /* Larger first, */
|
||||
return tmp / 1024; /* then smaller. */
|
||||
}
|
||||
|
||||
/* summarize: Report on the system use of a command.
|
||||
@ -162,15 +151,18 @@ static unsigned long ptok(unsigned long pages)
|
||||
#define TICKS_PER_SEC 100
|
||||
#endif
|
||||
|
||||
static void summarize(const char *fmt, char **command, resource_t * resp)
|
||||
static void summarize(const char *fmt, char **command, resource_t *resp)
|
||||
{
|
||||
unsigned vv_ms; /* Elapsed virtual (CPU) milliseconds */
|
||||
unsigned cpu_ticks; /* Same, in "CPU ticks" */
|
||||
unsigned pagesize = getpagesize();
|
||||
|
||||
/* Impossible: we do not use WUNTRACED flag in wait()...
|
||||
if (WIFSTOPPED(resp->waitstatus))
|
||||
printf("Command stopped by signal %u\n",
|
||||
WSTOPSIG(resp->waitstatus));
|
||||
else if (WIFSIGNALED(resp->waitstatus))
|
||||
else */
|
||||
if (WIFSIGNALED(resp->waitstatus))
|
||||
printf("Command terminated by signal %u\n",
|
||||
WTERMSIG(resp->waitstatus));
|
||||
else if (WIFEXITED(resp->waitstatus) && WEXITSTATUS(resp->waitstatus))
|
||||
@ -181,7 +173,7 @@ static void summarize(const char *fmt, char **command, resource_t * resp)
|
||||
+ (resp->ru.ru_utime.tv_usec + resp->ru.ru_stime.tv_usec) / 1000;
|
||||
|
||||
#if (1000 / TICKS_PER_SEC) * TICKS_PER_SEC == 1000
|
||||
/* 1000 is exactly divisible by TICKS_PER_SEC */
|
||||
/* 1000 is exactly divisible by TICKS_PER_SEC (typical) */
|
||||
cpu_ticks = vv_ms / (1000 / TICKS_PER_SEC);
|
||||
#else
|
||||
cpu_ticks = vv_ms * (unsigned long long)TICKS_PER_SEC / 1000;
|
||||
@ -221,12 +213,12 @@ static void summarize(const char *fmt, char **command, resource_t * resp)
|
||||
break;
|
||||
#endif
|
||||
case 'C': /* The command that got timed. */
|
||||
printargv(command, " ");
|
||||
printargv(command);
|
||||
break;
|
||||
case 'D': /* Average unshared data size. */
|
||||
printf("%lu",
|
||||
ptok((UL) resp->ru.ru_idrss) / cpu_ticks +
|
||||
ptok((UL) resp->ru.ru_isrss) / cpu_ticks);
|
||||
(ptok(pagesize, (UL) resp->ru.ru_idrss) +
|
||||
ptok(pagesize, (UL) resp->ru.ru_isrss)) / cpu_ticks);
|
||||
break;
|
||||
case 'E': { /* Elapsed real (wall clock) time. */
|
||||
unsigned seconds = resp->elapsed_ms / 1000;
|
||||
@ -250,12 +242,12 @@ static void summarize(const char *fmt, char **command, resource_t * resp)
|
||||
break;
|
||||
case 'K': /* Average mem usage == data+stack+text. */
|
||||
printf("%lu",
|
||||
ptok((UL) resp->ru.ru_idrss) / cpu_ticks +
|
||||
ptok((UL) resp->ru.ru_isrss) / cpu_ticks +
|
||||
ptok((UL) resp->ru.ru_ixrss) / cpu_ticks);
|
||||
(ptok(pagesize, (UL) resp->ru.ru_idrss) +
|
||||
ptok(pagesize, (UL) resp->ru.ru_isrss) +
|
||||
ptok(pagesize, (UL) resp->ru.ru_ixrss)) / cpu_ticks);
|
||||
break;
|
||||
case 'M': /* Maximum resident set size. */
|
||||
printf("%lu", ptok((UL) resp->ru.ru_maxrss));
|
||||
printf("%lu", ptok(pagesize, (UL) resp->ru.ru_maxrss));
|
||||
break;
|
||||
case 'O': /* Outputs. */
|
||||
printf("%lu", resp->ru.ru_oublock);
|
||||
@ -308,7 +300,7 @@ static void summarize(const char *fmt, char **command, resource_t * resp)
|
||||
printf("%lu", resp->ru.ru_nswap);
|
||||
break;
|
||||
case 'X': /* Average shared text size. */
|
||||
printf("%lu", ptok((UL) resp->ru.ru_ixrss) / cpu_ticks);
|
||||
printf("%lu", ptok(pagesize, (UL) resp->ru.ru_ixrss) / cpu_ticks);
|
||||
break;
|
||||
case 'Z': /* Page size. */
|
||||
printf("%u", getpagesize());
|
||||
@ -325,7 +317,7 @@ static void summarize(const char *fmt, char **command, resource_t * resp)
|
||||
printf("%lu", resp->ru.ru_nsignals);
|
||||
break;
|
||||
case 'p': /* Average stack segment. */
|
||||
printf("%lu", ptok((UL) resp->ru.ru_isrss) / cpu_ticks);
|
||||
printf("%lu", ptok(pagesize, (UL) resp->ru.ru_isrss) / cpu_ticks);
|
||||
break;
|
||||
case 'r': /* Incoming socket messages received. */
|
||||
printf("%lu", resp->ru.ru_msgrcv);
|
||||
@ -334,7 +326,7 @@ static void summarize(const char *fmt, char **command, resource_t * resp)
|
||||
printf("%lu", resp->ru.ru_msgsnd);
|
||||
break;
|
||||
case 't': /* Average resident set size. */
|
||||
printf("%lu", ptok((UL) resp->ru.ru_idrss) / cpu_ticks);
|
||||
printf("%lu", ptok(pagesize, (UL) resp->ru.ru_idrss) / cpu_ticks);
|
||||
break;
|
||||
case 'w': /* Voluntary context switches. */
|
||||
printf("%lu", resp->ru.ru_nvcsw);
|
||||
@ -396,8 +388,7 @@ static void run_command(char *const *cmd, resource_t *resp)
|
||||
interrupt_signal = signal(SIGINT, SIG_IGN);
|
||||
quit_signal = signal(SIGQUIT, SIG_IGN);
|
||||
|
||||
if (resuse_end(pid, resp) == 0)
|
||||
bb_error_msg("error waiting for child process");
|
||||
resuse_end(pid, resp);
|
||||
|
||||
/* Re-enable signals. */
|
||||
signal(SIGINT, interrupt_signal);
|
||||
@ -405,41 +396,26 @@ static void run_command(char *const *cmd, resource_t *resp)
|
||||
}
|
||||
|
||||
int time_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
||||
int time_main(int argc, char **argv)
|
||||
int time_main(int argc ATTRIBUTE_UNUSED, char **argv)
|
||||
{
|
||||
resource_t res;
|
||||
const char *output_format = default_format;
|
||||
char c;
|
||||
int opt;
|
||||
|
||||
goto next;
|
||||
/* Parse any options -- don't use getopt() here so we don't
|
||||
* consume the args of our client application... */
|
||||
while (argc > 0 && argv[0][0] == '-') {
|
||||
while ((c = *++*argv)) {
|
||||
switch (c) {
|
||||
case 'v':
|
||||
output_format = long_format;
|
||||
break;
|
||||
case 'p':
|
||||
output_format = posix_format;
|
||||
break;
|
||||
default:
|
||||
bb_show_usage();
|
||||
}
|
||||
}
|
||||
next:
|
||||
argv++;
|
||||
argc--;
|
||||
if (!argc)
|
||||
bb_show_usage();
|
||||
}
|
||||
/* "+": stop on first non-option */
|
||||
opt = getopt32(argv, "+vp");
|
||||
argv += optind;
|
||||
if (opt & 1)
|
||||
output_format = long_format;
|
||||
if (opt & 2)
|
||||
output_format = posix_format;
|
||||
|
||||
run_command(argv, &res);
|
||||
|
||||
/* Cheat. printf's are shorter :) */
|
||||
/* (but see bb_putchar() body for additional wrinkle!) */
|
||||
xdup2(2, 1); /* just in case libc does something silly :( */
|
||||
stdout = stderr;
|
||||
dup2(2, 1); /* just in case libc does something silly :( */
|
||||
summarize(output_format, argv, &res);
|
||||
|
||||
if (WIFSTOPPED(res.waitstatus))
|
||||
|
||||
@ -14,7 +14,7 @@
|
||||
int ttysize_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
||||
int ttysize_main(int argc, char **argv)
|
||||
{
|
||||
unsigned w,h;
|
||||
unsigned w, h;
|
||||
struct winsize wsz;
|
||||
|
||||
w = 80;
|
||||
|
||||
@ -13,8 +13,7 @@
|
||||
#define OPT_FOREGROUND 0x01
|
||||
#define OPT_TIMER 0x02
|
||||
|
||||
static void watchdog_shutdown(int ATTRIBUTE_UNUSED sig) ATTRIBUTE_NORETURN;
|
||||
static void watchdog_shutdown(int ATTRIBUTE_UNUSED sig)
|
||||
static void watchdog_shutdown(int sig ATTRIBUTE_UNUSED)
|
||||
{
|
||||
static const char V = 'V';
|
||||
|
||||
@ -47,14 +46,19 @@ int watchdog_main(int argc, char **argv)
|
||||
bb_daemonize_or_rexec(DAEMON_CHDIR_ROOT, argv);
|
||||
}
|
||||
|
||||
bb_signals(0
|
||||
+ (1 << SIGHUP)
|
||||
+ (1 << SIGINT)
|
||||
, watchdog_shutdown);
|
||||
bb_signals(BB_SIGS_FATAL, watchdog_shutdown);
|
||||
|
||||
/* Use known fd # - avoid needing global 'int fd' */
|
||||
xmove_fd(xopen(argv[argc - 1], O_WRONLY), 3);
|
||||
|
||||
// TODO?
|
||||
// if (!(opts & OPT_TIMER)) {
|
||||
// if (ioctl(fd, WDIOC_GETTIMEOUT, &timer_duration) == 0)
|
||||
// timer_duration *= 500;
|
||||
// else
|
||||
// timer_duration = 30000;
|
||||
// }
|
||||
|
||||
while (1) {
|
||||
/*
|
||||
* Make sure we clear the counter before sleeping, as the counter value
|
||||
|
||||
@ -64,7 +64,7 @@
|
||||
* 06.11.96 - Added v2 code submitted by Joerg Dorchain, but written by
|
||||
* Andreas Schwab.
|
||||
*
|
||||
* 1999-02-22 Arkadiusz Miśkiewicz <misiek@misiek.eu.org>
|
||||
* 1999-02-22 Arkadiusz Mickiewicz <misiek@misiek.eu.org>
|
||||
* - added Native Language Support
|
||||
*
|
||||
*
|
||||
|
||||
@ -22,7 +22,7 @@
|
||||
* Version 1.0.6: Tue Jun 27 2000
|
||||
* No important changes
|
||||
* Version 1.1.0: Tue Jun 30 2000
|
||||
* Added NLS support (partly written by Arkadiusz Mi<B6>kiewicz
|
||||
* Added NLS support (partly written by Arkadiusz Mickiewicz
|
||||
* <misiek@misiek.eu.org>)
|
||||
* Ported to Busybox - Alfred M. Szmidt <ams@trillian.itslinux.org>
|
||||
* Removed --version/-V and --help/-h in
|
||||
|
||||
@ -502,7 +502,7 @@ static int mount_it_now(struct mntent *mp, long vfsflags, char *filteropts)
|
||||
* Wed Oct 1 23:55:28 1997: Dick Streefland <dick_streefland@tasking.com>
|
||||
* Implemented the "bg", "fg" and "retry" mount options for NFS.
|
||||
*
|
||||
* 1999-02-22 Arkadiusz Miśkiewicz <misiek@misiek.eu.org>
|
||||
* 1999-02-22 Arkadiusz Mickiewicz <misiek@misiek.eu.org>
|
||||
* - added Native Language Support
|
||||
*
|
||||
* Modified by Olaf Kirch and Trond Myklebust for new NFS code,
|
||||
|
||||
Loading…
Reference in New Issue
Block a user