[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/busybox/src/procps/pgrep.c b/ap/app/busybox/src/procps/pgrep.c
new file mode 100644
index 0000000..dc7ffff
--- /dev/null
+++ b/ap/app/busybox/src/procps/pgrep.c
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+/* vi: set sw=4 ts=4: */
+/*
+ * Mini pgrep/pkill implementation for busybox
+ *
+ * Copyright (C) 2007 Loic Grenie <loic.grenie@gmail.com>
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ */
+
+//usage:#define pgrep_trivial_usage
+//usage: "[-flnovx] [-s SID|-P PPID|PATTERN]"
+//usage:#define pgrep_full_usage "\n\n"
+//usage: "Display process(es) selected by regex PATTERN\n"
+//usage: "\n -l Show command name too"
+//usage: "\n -f Match against entire command line"
+//usage: "\n -n Show the newest process only"
+//usage: "\n -o Show the oldest process only"
+//usage: "\n -v Negate the match"
+//usage: "\n -x Match whole name (not substring)"
+//usage: "\n -s Match session ID (0 for current)"
+//usage: "\n -P Match parent process ID"
+//usage:
+//usage:#define pkill_trivial_usage
+//usage: "[-l|-SIGNAL] [-fnovx] [-s SID|-P PPID|PATTERN]"
+//usage:#define pkill_full_usage "\n\n"
+//usage: "Send a signal to process(es) selected by regex PATTERN\n"
+//usage: "\n -l List all signals"
+//usage: "\n -f Match against entire command line"
+//usage: "\n -n Signal the newest process only"
+//usage: "\n -o Signal the oldest process only"
+//usage: "\n -v Negate the match"
+//usage: "\n -x Match whole name (not substring)"
+//usage: "\n -s Match session ID (0 for current)"
+//usage: "\n -P Match parent process ID"
+
+#include "libbb.h"
+#include "xregex.h"
+
+/* Idea taken from kill.c */
+#define pgrep (ENABLE_PGREP && applet_name[1] == 'g')
+#define pkill (ENABLE_PKILL && applet_name[1] == 'k')
+
+enum {
+ /* "vlfxons:P:" */
+ OPTBIT_V = 0, /* must be first, we need OPT_INVERT = 0/1 */
+ OPTBIT_L,
+ OPTBIT_F,
+ OPTBIT_X,
+ OPTBIT_O,
+ OPTBIT_N,
+ OPTBIT_S,
+ OPTBIT_P,
+};
+
+#define OPT_INVERT (opt & (1 << OPTBIT_V))
+#define OPT_LIST (opt & (1 << OPTBIT_L))
+#define OPT_FULL (opt & (1 << OPTBIT_F))
+#define OPT_ANCHOR (opt & (1 << OPTBIT_X))
+#define OPT_FIRST (opt & (1 << OPTBIT_O))
+#define OPT_LAST (opt & (1 << OPTBIT_N))
+#define OPT_SID (opt & (1 << OPTBIT_S))
+#define OPT_PPID (opt & (1 << OPTBIT_P))
+
+static void act(unsigned pid, char *cmd, int signo)
+{
+ if (pgrep) {
+ if (option_mask32 & (1 << OPTBIT_L)) /* OPT_LIST */
+ printf("%d %s\n", pid, cmd);
+ else
+ printf("%d\n", pid);
+ } else
+ kill(pid, signo);
+}
+
+int pgrep_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int pgrep_main(int argc UNUSED_PARAM, char **argv)
+{
+ unsigned pid;
+ int signo;
+ unsigned opt;
+ int scan_mask;
+ int matched_pid;
+ int sid2match, ppid2match;
+ char *cmd_last;
+ procps_status_t *proc;
+ /* These are initialized to 0 */
+ struct {
+ regex_t re_buffer;
+ regmatch_t re_match[1];
+ } Z;
+#define re_buffer (Z.re_buffer)
+#define re_match (Z.re_match )
+
+ memset(&Z, 0, sizeof(Z));
+
+ /* Parse -SIGNAL for pkill. Must be first option, if present */
+ signo = SIGTERM;
+ if (pkill && argv[1] && argv[1][0] == '-') {
+ int temp = get_signum(argv[1]+1);
+ if (temp != -1) {
+ signo = temp;
+ argv++;
+ }
+ }
+
+ /* Parse remaining options */
+ ppid2match = -1;
+ sid2match = -1;
+ opt_complementary = "s+:P+"; /* numeric opts */
+ opt = getopt32(argv, "vlfxons:P:", &sid2match, &ppid2match);
+ argv += optind;
+
+ if (pkill && OPT_LIST) { /* -l: print the whole signal list */
+ print_signames();
+ return 0;
+ }
+
+ pid = getpid();
+ if (sid2match == 0)
+ sid2match = getsid(pid);
+
+ scan_mask = PSSCAN_COMM | PSSCAN_ARGV0;
+ if (OPT_FULL)
+ scan_mask |= PSSCAN_ARGVN;
+
+ /* One pattern is required, if no -s and no -P */
+ if ((sid2match & ppid2match) < 0 && (!argv[0] || argv[1]))
+ bb_show_usage();
+
+ if (argv[0])
+ xregcomp(&re_buffer, argv[0], REG_EXTENDED | REG_NOSUB);
+
+ matched_pid = 0;
+ cmd_last = NULL;
+ proc = NULL;
+ while ((proc = procps_scan(proc, scan_mask)) != NULL) {
+ char *cmd;
+
+ if (proc->pid == pid)
+ continue;
+
+ cmd = proc->argv0;
+ if (!cmd) {
+ cmd = proc->comm;
+ } else {
+ int i = proc->argv_len;
+ while (--i >= 0) {
+ if ((unsigned char)cmd[i] < ' ')
+ cmd[i] = ' ';
+ }
+ }
+
+ if (ppid2match >= 0 && ppid2match != proc->ppid)
+ continue;
+ if (sid2match >= 0 && sid2match != proc->sid)
+ continue;
+
+ /* NB: OPT_INVERT is always 0 or 1 */
+ if (!argv[0]
+ || (regexec(&re_buffer, cmd, 1, re_match, 0) == 0 /* match found */
+ && (!OPT_ANCHOR || (re_match[0].rm_so == 0 && re_match[0].rm_eo == (regoff_t)strlen(cmd)))
+ ) ^ OPT_INVERT
+ ) {
+ matched_pid = proc->pid;
+ if (OPT_LAST) {
+ free(cmd_last);
+ cmd_last = xstrdup(cmd);
+ continue;
+ }
+ act(proc->pid, cmd, signo);
+ if (OPT_FIRST)
+ break;
+ }
+ }
+
+ if (cmd_last) {
+ act(matched_pid, cmd_last, signo);
+ if (ENABLE_FEATURE_CLEAN_UP)
+ free(cmd_last);
+ }
+ return matched_pid == 0; /* return 1 if no processes listed/signaled */
+}