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pgrep.c: Match based on process run state for issue 109 

References:
 procps-ng/procps#109
This commit is contained in:
ed 2019-01-03 22:34:14 +00:00 committed by Craig Small
parent 866a27cdcd
commit 7b4ad698cc
2 changed files with 18 additions and 4 deletions
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3
pgrep.1
View File

@ -154,6 +154,9 @@ than
\fB\-L\fR, \fB\-\-logpidfile\fR
Fail if pidfile (see -F) not locked.
.TP
\fB\-r\fR, \fB\-\-runstates\fR \fID,R,S,Z,\fP...
Match only processes which match the process state.
.TP
\fB\-\-ns \fIpid\fP
Match processes that belong to the same namespaces. Required to run as
root to match processes from other users. See \-\-nslist for how to limit

19
pgrep.c
View File

@ -63,11 +63,12 @@ enum pids_item Items[] = {
PIDS_TIME_START,
PIDS_TTY_NAME,
PIDS_CMD,
PIDS_CMDLINE
PIDS_CMDLINE,
PIDS_STATE
};
enum rel_items {
EU_PID, EU_PPID, EU_PGRP, EU_EUID, EU_RUID, EU_RGID, EU_SESSION,
EU_TGID, EU_STARTTIME, EU_TTYNAME, EU_CMD, EU_CMDLINE
EU_TGID, EU_STARTTIME, EU_TTYNAME, EU_CMD, EU_CMDLINE, EU_STA
};
#define grow_size(x) do { \
if ((x) < 0 || (size_t)(x) >= INT_MAX / 5 / sizeof(struct el)) \
@ -111,6 +112,7 @@ static struct el *opt_ruid = NULL;
static struct el *opt_nslist = NULL;
static char *opt_pattern = NULL;
static char *opt_pidfile = NULL;
static char *opt_runstates = NULL;
/* by default, all namespaces will be checked */
static int ns_flags = 0x3f;
@ -149,6 +151,7 @@ static int __attribute__ ((__noreturn__)) usage(int opt)
fputs(_(" -x, --exact match exactly with the command name\n"), fp);
fputs(_(" -F, --pidfile <file> read PIDs from file\n"), fp);
fputs(_(" -L, --logpidfile fail if PID file is not locked\n"), fp);
fputs(_(" -r, --runstates <state> match runstates [D,S,Z,...]\n"), fp);
fputs(_(" --ns <PID> match the processes that belong to the same\n"
" namespace as <pid>\n"), fp);
fputs(_(" --nslist <ns,...> list which namespaces will be considered for\n"
@ -482,6 +485,7 @@ static struct el * select_procs (int *num)
#define PIDS_GETUNT(e) PIDS_VAL(EU_ ## e, u_int, stack, info)
#define PIDS_GETULL(e) PIDS_VAL(EU_ ## e, ull_int, stack, info)
#define PIDS_GETSTR(e) PIDS_VAL(EU_ ## e, str, stack, info)
#define PIDS_GETSCH(e) PIDS_VAL(EU_ ## e, s_ch, stack, info)
struct pids_info *info=NULL;
struct procps_namespaces nsp;
struct pids_stack *stack;
@ -509,7 +513,7 @@ static struct el * select_procs (int *num)
_("Error reading reference namespace information\n"));
}
if (procps_pids_new(&info, Items, 12) < 0)
if (procps_pids_new(&info, Items, 13) < 0)
xerrx(EXIT_FATAL,
_("Unable to create pid info structure"));
which = PIDS_FETCH_TASKS_ONLY;
@ -543,6 +547,8 @@ static struct el * select_procs (int *num)
match = 0;
else if (opt_term)
match = match_strlist(PIDS_GETSTR(TTYNAME), opt_term);
else if (opt_runstates && ! strchr(opt_runstates, PIDS_GETSCH(STA)))
match = 0;
task_cmdline = PIDS_GETSTR(CMDLINE);
task_cmdline[CMDSTRSIZE -1] = '\0';
@ -666,6 +672,7 @@ static void parse_opts (int argc, char **argv)
{"echo", no_argument, NULL, 'e'},
{"ns", required_argument, NULL, NS_OPTION},
{"nslist", required_argument, NULL, NSLIST_OPTION},
{"runstates", required_argument, NULL, 'r'},
{"help", no_argument, NULL, 'h'},
{"version", no_argument, NULL, 'V'},
{NULL, 0, NULL, 0}
@ -684,7 +691,7 @@ static void parse_opts (int argc, char **argv)
strcat (opts, "lad:vw");
}
strcat (opts, "LF:cfinoxP:g:s:u:U:G:t:?Vh");
strcat (opts, "LF:cfinoxP:g:s:u:U:G:t:r:?Vh");
while ((opt = getopt_long (argc, argv, opts, longopts, NULL)) != -1) {
switch (opt) {
@ -818,6 +825,10 @@ static void parse_opts (int argc, char **argv)
usage ('?');
++criteria_count;
break;
case 'r': /* match by runstate */
opt_runstates = xstrdup (optarg);
++criteria_count;
break;
case NSLIST_OPTION:
opt_nslist = split_list (optarg, conv_ns);
if (opt_nslist == NULL)