svn commit: r366237 - head/usr.bin/procstat

[Konstantin Belousov]

Author: kib
Date: Tue Sep 29 00:20:58 2020
New Revision: 366237
URL: https://svnweb.freebsd.org/changeset/base/366237

Log:
  procstat: Fix regression after 365880.
  
  Basically it reverts one chunk that reversed the parsing logic, making
  legacy variants of invocation, like `procstat -a -f', non-operational.
  
  Reported and tested by:	Dewayne Geraghty <dewayne at heuristicsystems.com.au>
  Sponsored by:	The FreeBSD Foundation
  MFC after:	3 days

Modified:
  head/usr.bin/procstat/procstat.c

Modified: head/usr.bin/procstat/procstat.c
==============================================================================
--- head/usr.bin/procstat/procstat.c	Mon Sep 28 22:16:29 2020	(r366236)
+++ head/usr.bin/procstat/procstat.c	Tue Sep 29 00:20:58 2020	(r366237)
@@ -425,9 +425,7 @@ main(int argc, char *argv[])
 	argc -= optind;
 	argv += optind;
 
-	if (cmd == NULL && argv[0] != NULL)
-		cmd = getcmd(argv[0]);
-	if (cmd != NULL) {
+	if (cmd == NULL && argv[0] != NULL && (cmd = getcmd(argv[0])) != NULL) {
 		if ((procstat_opts & PS_SUBCOMMAND_OPTS) != 0)
 			usage(cmd);
 		if (cmd->opt != NULL) {
@@ -443,12 +441,13 @@ main(int argc, char *argv[])
 			argv += 1;
 		}
 	} else {
-		cmd = getcmd("basic");
+		if (cmd == NULL)
+			cmd = getcmd("basic");
+		if (cmd->cmd != procstat_files &&
+		    (procstat_opts & PS_OPT_CAPABILITIES) != 0 &&
+		    (cmd->cmp & PS_MODE_COMPAT) == 0)
+			usage(cmd);
 	}
-	if (cmd->cmd != procstat_files &&
-	    (procstat_opts & PS_OPT_CAPABILITIES) != 0 &&
-	    (cmd->cmp & PS_MODE_COMPAT) == 0)
-		usage(cmd);
 
 	/* Must specify either the -a flag or a list of pids. */
 	if (!(aflag == 1 && argc == 0) && !(aflag == 0 && argc > 0))