From c28dd144254def45a3cbb87c7908cc5f7209ecdb Mon Sep 17 00:00:00 2001
From: Francois Fleuret <francois@fleuret.org>
Date: Mon, 18 Apr 2011 08:25:08 +0200
Subject: [PATCH] Keep the stderr messages on file access errors even with the
 -i option.

---
 dus.1 |  2 +-
 dus.c | 28 ++++++++++++++--------------
 2 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/dus.1 b/dus.1
index e791861..01b5cc1 100644
--- a/dus.1
+++ b/dus.1
@@ -33,7 +33,7 @@ print the version number and exit
 ignore files and directories whose name starts with a dot
 .TP
 \fB-i\fR, \fB--ignore-protected\fR
-ignore files and directories for which we do not have permission
+do not exit when trying to access files and directories for which we do not have permission
 .TP
 \fB-f\fR, \fB--fancy\fR
 display floating point size with K, M and G units
diff --git a/dus.c b/dus.c
index a7e3908..6de022a 100644
--- a/dus.c
+++ b/dus.c
@@ -66,9 +66,9 @@ size_sum_t size_min = -1; /* -1 means no minimum size, otherwise lower
                               bound on the size to display a
                               file/dir */
 
-int ignore_protected_files = 0; /* Should we simply ignore files or
-                                   directories which are protected
-                                   ? */
+int dont_exit_on_protected_files = 0; /* Should we go on when we meet
+                                         files or directories which
+                                         are protected ? */
 
 /********************************************************************/
 
@@ -105,10 +105,10 @@ size_sum_t entry_size(const char *name, int *isdir) {
   if(isdir) { *isdir = 0; }
 
   if(lstat(name, &dummy) != 0) {
-    if(!(errno == EACCES && ignore_protected_files)) {
-      fprintf(stderr,
-              "dus: Can not stat %s: %s\n",
-              name, strerror(errno));
+    fprintf(stderr,
+            "dus: Can not stat %s: %s\n",
+            name, strerror(errno));
+    if(!(errno == EACCES && dont_exit_on_protected_files)) {
       exit(EXIT_FAILURE);
     } else {
       return 0;
@@ -131,10 +131,10 @@ size_sum_t entry_size(const char *name, int *isdir) {
       }
       closedir(dir);
     } else {
-      if(!(errno == EACCES && ignore_protected_files)) {
-        fprintf(stderr,
-                "dus: Can not open directory %s: %s\n",
-                name, strerror(errno));
+      fprintf(stderr,
+              "dus: Can not open directory %s: %s\n",
+              name, strerror(errno));
+      if(!(errno == EACCES && dont_exit_on_protected_files)) {
         exit(EXIT_FAILURE);
       }
     }
@@ -404,8 +404,8 @@ void usage(FILE *out) {
   fprintf(out, "   -h, --help                 show this help.\n");
   fprintf(out, "   -v, --version              prints the version number and exit\n");
   fprintf(out, "   -d, --ignore-dots          ignore files and directories starting with a '.'\n");
-  fprintf(out, "   -i, --ignore-protected     ignore files and directories for which we do not\n");
-  fprintf(out, "                              have permission\n");
+  fprintf(out, "   -i, --ignore-protected     do not exit when visiting files and directories\n");
+  fprintf(out, "                              for which we do not have permission\n");
   fprintf(out, "   -f, --fancy                display size with float values and K, M and G\n");
   fprintf(out, "                              units.\n");
   fprintf(out, "   -r, --reverse-order        reverse the sorting order.\n");
@@ -463,7 +463,7 @@ int main(int argc, char **argv) {
       break;
 
     case 'i':
-      ignore_protected_files = 1;
+      dont_exit_on_protected_files = 1;
       break;
 
     case 'f':
-- 
2.20.1