Cosmetics in the error messages.

diff --git a/finddup.c b/finddup.c
index cb4b8ca..fb8b5d2 100644 (file)
--- a/finddup.c
+++ b/finddup.c
@@ -81,7 +81,8 @@ int sort_by_time = 0; /* 1 means to sort files in each group according
 void *safe_malloc(size_t n) {
   void *p = malloc(n);
   if (!p && n != 0) {
-    printf("Can not allocate memory: %s\n", strerror(errno));
+    fprintf(stderr,
+            "finddup: Can not allocate memory: %s\n", strerror(errno));
     exit(EXIT_FAILURE);
   }
   return p;
@@ -162,7 +163,7 @@ int same_content(struct file_node *f1, struct file_node *f2,
         }
       } else {
         fprintf(stderr,
-                "Different read size without error on files of same size.\n");
+                "finddup: Different read size without error on files of same size.\n");
         exit(EXIT_FAILURE);
       }
     }
@@ -170,14 +171,14 @@ int same_content(struct file_node *f1, struct file_node *f2,
 
     if(fd1 < 0) {
       fprintf(stderr,
-              "Can not open \"%s\" error: %s\n",
+              "finddup: Can not open \"%s\" error: %s\n",
               f1->name,
               strerror(errno));
     }
 
     if(fd2 < 0) {
       fprintf(stderr,
-              "Can not open \"%s\" error: %s\n",
+              "finddup: Can not open \"%s\" error: %s\n",
               f2->name,
               strerror(errno));
     }
@@ -197,7 +198,7 @@ int same_files(struct file_node *f1, struct file_node *f2,
 
 /**********************************************************************/
 
-struct file_node *scan_directory(struct file_node *tail, const char *name) {
+struct file_node *scan_directory_rec(struct file_node *tail, const char *name) {
   DIR *dir;
   struct dirent *dir_e;
   struct stat sb;
@@ -205,7 +206,7 @@ struct file_node *scan_directory(struct file_node *tail, const char *name) {
   char subname[PATH_MAX + 1];
 
   if(lstat(name, &sb) != 0) {
-    fprintf(stderr, "Can not stat \"%s\": %s\n", name, strerror(errno));
+    fprintf(stderr, "finddup: Can not stat \"%s\": %s\n", name, strerror(errno));
     exit(EXIT_FAILURE);
   }
 
@@ -219,7 +220,7 @@ struct file_node *scan_directory(struct file_node *tail, const char *name) {
     while((dir_e = readdir(dir))) {
       if(!ignore_entry(dir_e->d_name)) {
         snprintf(subname, PATH_MAX, "%s/%s", name, dir_e->d_name);
-        tail = scan_directory(tail, subname);
+        tail = scan_directory_rec(tail, subname);
       }
     }
     closedir(dir);
@@ -246,6 +247,26 @@ struct file_node *scan_directory(struct file_node *tail, const char *name) {
   return tail;
 }
 
+struct file_node *scan_directory(struct file_node *tail, const char *name) {
+  struct file_node *result;
+  int length;
+
+  if(show_progress) {
+    fprintf(stderr, "Scanning '%s' ... ", name);
+  }
+
+  result = scan_directory_rec(tail, name);
+  length = file_list_length(result);
+
+  if(show_progress) {
+    fprintf(stderr, "done (%d file%s).\n",
+            length, (length > 1 ? "s" : ""));
+  }
+
+
+  return result;
+}
+
 void print_file(struct file_node *node) {
   char tmp[PATH_MAX + 1];
   if(show_realpaths) {
@@ -256,9 +277,10 @@ void print_file(struct file_node *node) {
         printf("%s\n", tmp);
       }
     } else {
-      printf("Can not get the realpath of \"%s\": %s\n",
-             node->name,
-             strerror(errno));
+      fprintf(stderr,
+              "finddup: Can not get the realpath of \"%s\": %s\n",
+              node->name,
+              strerror(errno));
       exit(EXIT_FAILURE);
     }
   } else {
@@ -399,26 +421,16 @@ void start(const char *dirname1, const char *dirname2) {
   struct progress_state progress_state;
   int not_in, found;
   int nb_groups, nb_nodes;
-  int list1_length, list2_length, previous_progress;
+  int list1_length, previous_progress;
 
   char *buffer1 = safe_malloc(sizeof(char) * READ_BUFFER_SIZE);
   char *buffer2 = safe_malloc(sizeof(char) * READ_BUFFER_SIZE);
 
   not_in = 0;
 
-  if(show_progress) {
-    fprintf(stderr, "Scanning '%s' ... ", dirname1);
-  }
-
   list1 = scan_directory(0, dirname1);
-
   list1_length = file_list_length(list1);
 
-  if(show_progress) {
-    fprintf(stderr, "done (%d file%s).\n",
-            list1_length, (list1_length > 1 ? "s" : ""));
-  }
-
   if(dirname2) {
     if(strncmp(dirname2, "not:", 4) == 0) {
       not_in = 1;
@@ -428,21 +440,14 @@ void start(const char *dirname1, const char *dirname2) {
     } else if(strncmp(dirname2, "and:", 4) == 0) {
       dirname2 += 4;
     }
-    if(show_progress) {
-      fprintf(stderr, "Scanning '%s' ... ", dirname2);
-    }
     list2 = scan_directory(0, dirname2);
-    if(show_progress) {
-      list2_length = file_list_length(list2);
-      fprintf(stderr, "done (%d file%s).\n",
-              list2_length, (list2_length > 1 ? "s" : ""));
-    }
   } else {
     list2 = list1;
   }
 
   if(show_progress) {
-    fprintf(stderr, "Now looking for identical files (this may take a while).\n");
+    fprintf(stderr,
+            "Now looking for identical files (this may take a while).\n");
   }
 
   nb_groups = 0;