Fix exit with status code 0 for --help

(cherry picked from commit 3deed882e1717f82aa351800b16f01ad0bec4bb2)

scrub.spec

@@ -1,10 +1,14 @@
 Name:           scrub
 Version:        2.6.1
-Release:        2
+Release:        3
 Summary:        A disk overwrite utility
 License:        GPLv2+
 URL:            https://github.com/chaos/scrub
 Source0:        http://github.com/chaos/scrub/releases/download/2.6.1/scrub-2.6.1.tar.gz
+# https://github.com/chaos/scrub/commit/006fd942abd78d3128d427f1ede9786abe14c65f
+Patch0:         usage-Exit-with-status-code-0-for-help.patch
+# https://github.com/chaos/scrub/commit/bd88864d8ee15a65d5ecdb3818afa4d5193d2455
+Patch1:         usage-Output-to-stdout-on-exit-code-0.patch
 
 BuildRequires:  gettext, gcc
 
@@ -34,6 +38,9 @@ retrieving the data more difficult.  It operates in one of three modes:
 %{_mandir}/man1/scrub.1*
 
 %changelog
+* Tue Jan 30 2024 yaoxin <yao_xin001@hoperun.com> - 2.6.1-3
+- Fix exit with status code 0 for --help
+
 * Tue Jun 29 2021 zhouwenpei <zhouwenpei1@huawei.com> - 2.6.1-2
 - add buildrequire gcc and gettext.
 

usage-Exit-with-status-code-0-for-help.patch

@@ -0,0 +1,48 @@
+From 006fd942abd78d3128d427f1ede9786abe14c65f Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Ville=20Skytt=C3=A4?= <ville.skytta@iki.fi>
+Date: Thu, 12 Apr 2018 08:07:29 +0300
+Subject: [PATCH] usage: Exit with status code 0 for --help
+
+---
+ src/scrub.c | 10 ++++++----
+ 1 file changed, 6 insertions(+), 4 deletions(-)
+
+diff --git a/src/scrub.c b/src/scrub.c
+index 0a325cb..fceb639 100644
+--- a/src/scrub.c
++++ b/src/scrub.c
+@@ -110,7 +110,7 @@ static struct option longopts[] = {
+ char *prog;
+ 
+ static void 
+-usage(void)
++usage(int rc)
+ {
+     fprintf(stderr,
+ "Usage: %s [OPTIONS] file [file...]\n"
+@@ -132,7 +132,7 @@ usage(void)
+ 
+     fprintf(stderr, "Available patterns are:\n");
+     seq_list ();
+-    exit(1);
++    exit(rc);
+ }
+ 
+ int 
+@@ -225,12 +225,14 @@ main(int argc, char *argv[])
+             nopt = true;
+             break;
+         case 'h':   /* --help */
++            usage(0);
++            break;
+         default:
+-            usage();
++            usage(1);
+         }
+     }
+     if (argc == optind)
+-        usage();
++        usage(1);
+     if (Xopt && argc - optind > 1) {
+         fprintf(stderr, "%s: -X only takes one directory name\n", prog);
+         exit(1);

usage-Output-to-stdout-on-exit-code-0.patch

@@ -0,0 +1,81 @@
+From bd88864d8ee15a65d5ecdb3818afa4d5193d2455 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Ville=20Skytt=C3=A4?= <ville.skytta@iki.fi>
+Date: Thu, 12 Apr 2018 08:39:20 +0300
+Subject: [PATCH] usage: Output to stdout on exit code 0
+
+---
+ src/pattern.c | 6 +++---
+ src/pattern.h | 4 +++-
+ src/scrub.c   | 7 ++++---
+ 3 files changed, 10 insertions(+), 7 deletions(-)
+
+diff --git a/src/pattern.c b/src/pattern.c
+index 10430f9..6c0eedc 100644
+--- a/src/pattern.c
++++ b/src/pattern.c
+@@ -420,7 +420,7 @@ seq2str(const sequence_t *sp, char *buf, int len)
+ }
+ 
+ void
+-seq_list(void)
++seq_list(FILE *fp)
+ {
+     const int len = seq_count();
+     char buf[80];
+@@ -428,10 +428,10 @@ seq_list(void)
+ 
+     for (i = 0; i < len; i++) {
+         seq2str(sequences[i], buf, sizeof(buf));
+-        fprintf(stderr, "%s\n", buf);
++        fprintf(fp, "%s\n", buf);
+     }
+     seq2str(&custom_seq, buf, sizeof(buf));
+-    fprintf(stderr, "%s\n", buf);
++    fprintf(fp, "%s\n", buf);
+ }
+ 
+ /*
+diff --git a/src/pattern.h b/src/pattern.h
+index bcf5374..e1d0144 100644
+--- a/src/pattern.h
++++ b/src/pattern.h
+@@ -1,3 +1,5 @@
++#include <stdio.h>
++
+ #define MAXPATBYTES 16
+ #define MAXSEQPATTERNS 35
+ typedef enum {
+@@ -19,7 +21,7 @@ typedef struct {
+ } sequence_t;
+ 
+ const sequence_t *seq_lookup(char *name);
+-void              seq_list(void);
++void              seq_list(FILE *fp);
+ char             *pat2str(pattern_t p);
+ void              memset_pat(void *s, pattern_t p, size_t n);
+ 
+diff --git a/src/scrub.c b/src/scrub.c
+index fceb639..6671ed5 100644
+--- a/src/scrub.c
++++ b/src/scrub.c
+@@ -112,7 +112,8 @@ char *prog;
+ static void 
+ usage(int rc)
+ {
+-    fprintf(stderr,
++    FILE *fp = rc ? stderr : stdout;
++    fprintf(fp,
+ "Usage: %s [OPTIONS] file [file...]\n"
+ "  -v, --version           display scrub version and exit\n"
+ "  -p, --pattern pat       select scrub pattern sequence\n"
+@@ -130,8 +131,8 @@ usage(int rc)
+ "  -h, --help              display this help message\n"
+     , prog);
+ 
+-    fprintf(stderr, "Available patterns are:\n");
+-    seq_list ();
++    fprintf(fp, "Available patterns are:\n");
++    seq_list (fp);
+     exit(rc);
+ }
+