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-rw-r--r--winsup/utils/ps.cc15
1 files changed, 12 insertions, 3 deletions
diff --git a/winsup/utils/ps.cc b/winsup/utils/ps.cc
index 12b60fd08..27203d0c7 100644
--- a/winsup/utils/ps.cc
+++ b/winsup/utils/ps.cc
@@ -29,6 +29,7 @@ static struct option longopts[] =
{"full", no_argument, NULL, 'f' },
{"help", no_argument, NULL, 'h' },
{"long", no_argument, NULL, 'l' },
+ {"process", required_argument, NULL, 'p'},
{"summary", no_argument, NULL, 's' },
{"user", required_argument, NULL, 'u'},
{"version", no_argument, NULL, 'v'},
@@ -36,7 +37,7 @@ static struct option longopts[] =
{NULL, 0, NULL, 0}
};
-static char opts[] = "aefhlsu:vW";
+static char opts[] = "aefhlp:su:vW";
typedef BOOL (WINAPI *ENUMPROCESSMODULES)(
HANDLE hProcess, // handle to the process
@@ -200,7 +201,7 @@ static void
usage (FILE * stream, int status)
{
fprintf (stream, "\
-Usage: %s [-aefls] [-u UID]\n\
+Usage: %s [-aefls] [-u UID] [-p PID]\n\
Report process status\n\
\n\
-a, --all show processes of all users\n\
@@ -208,6 +209,7 @@ Report process status\n\
-f, --full show process uids, ppids\n\
-h, --help output usage information and exit\n\
-l, --long show process uids, ppids, pgids, winpids\n\
+ -p, --process show information for specified PID\n\
-s, --summary show process summary\n\
-u, --user list processes owned by UID\n\
-v, --version output version information and exit\n\
@@ -244,7 +246,7 @@ int
main (int argc, char *argv[])
{
external_pinfo *p;
- int aflag, lflag, fflag, sflag, uid;
+ int aflag, lflag, fflag, sflag, uid, proc_id;
cygwin_getinfo_types query = CW_GETPINFO;
const char *dtitle = " PID TTY STIME COMMAND\n";
const char *dfmt = "%7d%4s%10s %s\n";
@@ -256,6 +258,7 @@ main (int argc, char *argv[])
aflag = lflag = fflag = sflag = 0;
uid = getuid ();
+ proc_id = -1;
lflag = 1;
prog_name = strrchr (argv[0], '/');
@@ -281,6 +284,9 @@ main (int argc, char *argv[])
case 'l':
lflag = 1;
break;
+ case 'p':
+ proc_id = atoi (optarg);
+ break;
case 's':
sflag = 1;
break;
@@ -328,6 +334,9 @@ main (int argc, char *argv[])
(p = (external_pinfo *) cygwin_internal (query, pid | CW_NEXTPID));
pid = p->pid)
{
+ if ((proc_id > 0) && (p->pid != proc_id))
+ continue;
+
if (!aflag)
if (p->version >= EXTERNAL_PINFO_VERSION_32_BIT)
{