Added a warning to my_print_defaults if --verbose is given

and --defaults-file is a non-existing or non-regular file.
Bug#755


scripts/mysqld_safe.sh:
  Added a warning to my_print_defaults if --verbose is given
  and --defaults-file is a non-existing or non-regular file.
  
  Bug#755

extra/my_print_defaults.c

@@ -26,6 +26,7 @@
 #include <my_getopt.h>
 
 const char *config_file="my";			/* Default config file */
+uint verbose= 0, opt_defaults_file_used= 0;
 
 static struct my_option my_long_options[] =
 {
@@ -47,6 +48,8 @@ static struct my_option my_long_options[] =
    0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
   {"help", '?', "Display this help message and exit.",
    0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
+  {"verbose", 'v', "Increase the output level",
+   0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
   {"version", 'V', "Output version information and exit.",
    0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0},
   {0, 0, 0, 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}
@@ -55,7 +58,7 @@ static struct my_option my_long_options[] =
 
 static void usage(my_bool version)
 {
-  printf("%s  Ver 1.5 for %s at %s\n",my_progname,SYSTEM_TYPE,
+  printf("%s  Ver 1.6 for %s at %s\n",my_progname,SYSTEM_TYPE,
 	 MACHINE_TYPE);
   if (version)
     return;
@@ -73,12 +76,18 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
 	       char *argument __attribute__((unused)))
 {
   switch (optid) {
+    case 'c':
+      opt_defaults_file_used= 1;
+      break;
     case 'n':
     exit(0);
     case 'I':
     case '?':
     usage(0);
     exit(0);
+    case 'v':
+      verbose++;
+      break;
     case 'V':
     usage(1);
     exit(0);
@@ -104,7 +113,7 @@ static int get_options(int *argc,char ***argv)
 
 int main(int argc, char **argv)
 {
-  int count;
+  int count, error;
   char **load_default_groups, *tmp_arguments[2],
        **argument, **arguments;
   MY_INIT(argv[0]);
@@ -126,8 +135,20 @@ int main(int argc, char **argv)
   arguments=tmp_arguments;
   arguments[0]=my_progname;
   arguments[1]=0;
-  load_defaults(config_file, (const char **) load_default_groups,
-		&count, &arguments);
+  if ((error= load_defaults(config_file, (const char **) load_default_groups,
+			   &count, &arguments)) > 1)
+  {
+    if (verbose && opt_defaults_file_used)
+    {
+      if (error == 2)
+	fprintf(stderr, "WARNING: Defaults file (%s) not found!\n",
+		config_file);
+      if (error == 3)
+	fprintf(stderr, "WARNING: Defaults file (%s) is not a regular file!\n",
+		config_file);
+    }
+    exit(2); // Non-fatal error
+  }
 
   for (argument= arguments+1 ; *argument ; argument++)
     puts(*argument);

include/my_sys.h

@@ -742,8 +742,8 @@ extern void set_prealloc_root(MEM_ROOT *root, char *ptr);
 extern char *strdup_root(MEM_ROOT *root,const char *str);
 extern char *strmake_root(MEM_ROOT *root,const char *str,uint len);
 extern char *memdup_root(MEM_ROOT *root,const char *str,uint len);
-extern void load_defaults(const char *conf_file, const char **groups,
-			  int *argc, char ***argv);
+extern int load_defaults(const char *conf_file, const char **groups,
+			 int *argc, char ***argv);
 extern void free_defaults(char **argv);
 extern void print_defaults(const char *conf_file, const char **groups);
 extern my_bool my_compress(byte *, ulong *, ulong *);

include/mysql_com.h

@@ -242,8 +242,8 @@ void hash_password(unsigned long *result, const char *password);
 /* Some other useful functions */
 
 void my_init(void);
-void load_defaults(const char *conf_file, const char **groups,
-		   int *argc, char ***argv);
+int load_defaults(const char *conf_file, const char **groups,
+		  int *argc, char ***argv);
 my_bool my_thread_init(void);
 void my_thread_end(void);
 

mysys/default.c

@@ -66,13 +66,13 @@ NullS,
 #define windows_ext	".ini"
 #endif
 
-static my_bool search_default_file(DYNAMIC_ARRAY *args,MEM_ROOT *alloc,
-				   const char *dir, const char *config_file,
-				   const char *ext, TYPELIB *group);
+static int search_default_file(DYNAMIC_ARRAY *args,MEM_ROOT *alloc,
+			       const char *dir, const char *config_file,
+			       const char *ext, TYPELIB *group);
 
 static char *remove_end_comment(char *ptr);
 
-void load_defaults(const char *conf_file, const char **groups,
+int load_defaults(const char *conf_file, const char **groups,
 		   int *argc, char ***argv)
 {
   DYNAMIC_ARRAY args;
@@ -80,6 +80,7 @@ void load_defaults(const char *conf_file, const char **groups,
   TYPELIB group;
   my_bool found_print_defaults=0;
   uint args_used=0;
+  int error= 0;
   MEM_ROOT alloc;
   char *ptr,**res;
   DBUG_ENTER("load_defaults");
@@ -100,7 +101,7 @@ void load_defaults(const char *conf_file, const char **groups,
     (*argc)--;
     *argv=res;
     *(MEM_ROOT*) ptr= alloc;			/* Save alloc root for free */
-    DBUG_VOID_RETURN;
+    return 0;
   }
 
   /* Check if we want to force the use a specific default file */
@@ -129,14 +130,14 @@ void load_defaults(const char *conf_file, const char **groups,
     goto err;
   if (forced_default_file)
   {
-    if (search_default_file(&args, &alloc, "", forced_default_file, "",
-			    &group))
+    if ((error= search_default_file(&args, &alloc, "",
+				    forced_default_file, "", &group)) == 1)
       goto err;
   }
   else if (dirname_length(conf_file))
   {
-    if (search_default_file(&args, &alloc, NullS, conf_file, default_ext,
-			    &group))
+    if ((error= search_default_file(&args, &alloc, NullS, conf_file,
+				    default_ext, &group)) == 1)
       goto err;
   }
   else
@@ -144,26 +145,25 @@ void load_defaults(const char *conf_file, const char **groups,
 #ifdef __WIN__
     char system_dir[FN_REFLEN];
     GetWindowsDirectory(system_dir,sizeof(system_dir));
-    if (search_default_file(&args, &alloc, system_dir, conf_file, windows_ext,
-			    &group))
+    if ((error= search_default_file(&args, &alloc, system_dir, conf_file,
+				    windows_ext, &group)) == 1)
       goto err;
 #endif
 #if defined(__EMX__) || defined(OS2)
     if (getenv("ETC") &&
-        search_default_file(&args, &alloc, getenv("ETC"), conf_file, 
-                            default_ext, &group))
+        (error= search_default_file(&args, &alloc, getenv("ETC"), conf_file, 
+				    default_ext, &group)) == 1)
       goto err;
 #endif
     for (dirs=default_directories ; *dirs; dirs++)
     {
-      int error=0;
       if (**dirs)
-	error=search_default_file(&args, &alloc, *dirs, conf_file,
-				  default_ext, &group);
+	error= search_default_file(&args, &alloc, *dirs, conf_file,
+				   default_ext, &group);
       else if (defaults_extra_file)
-	error=search_default_file(&args, &alloc, NullS, defaults_extra_file,
-				  default_ext, &group);
-      if (error)
+	error= search_default_file(&args, &alloc, NullS, defaults_extra_file,
+				   default_ext, &group);
+      if (error == 1)
 	goto err;
     }
   }
@@ -204,11 +204,11 @@ void load_defaults(const char *conf_file, const char **groups,
     puts("");
     exit(1);
   }
-  DBUG_VOID_RETURN;
+  return error;
 
  err:
   fprintf(stderr,"Program aborted\n");
-  exit(1);
+  return(error);
 }
 
 
@@ -220,9 +220,16 @@ void free_defaults(char **argv)
 }
 
 
-static my_bool search_default_file(DYNAMIC_ARRAY *args, MEM_ROOT *alloc,
-				   const char *dir, const char *config_file,
-				   const char *ext, TYPELIB *group)
+/*
+  Return values: 0 Success
+                 1 Fatal error, abort
+                 2 File not found, continue
+                 3 File is not a regular file, continue
+*/
+
+static int search_default_file(DYNAMIC_ARRAY *args, MEM_ROOT *alloc,
+			       const char *dir, const char *config_file,
+			       const char *ext, TYPELIB *group)
 {
   char name[FN_REFLEN+10],buff[4096],*ptr,*end,*value,*tmp;
   FILE *fp;
@@ -247,7 +254,7 @@ static my_bool search_default_file(DYNAMIC_ARRAY *args, MEM_ROOT *alloc,
   {
     MY_STAT stat_info;
     if (!my_stat(name,&stat_info,MYF(0)))
-      return 0;
+      return 2;
     /*
       Ignore world-writable regular files.
       This is mainly done to protect us to not read a file created by
@@ -260,6 +267,8 @@ static my_bool search_default_file(DYNAMIC_ARRAY *args, MEM_ROOT *alloc,
               name);
       return 0;
     }
+    else if ((stat_info.st_mode & S_IFMT) != S_IFREG)
+      return 3;
   }
 #endif
   if (!(fp = my_fopen(fn_format(name,name,"","",4),O_RDONLY,MYF(0))))

scripts/mysqld_safe.sh

@@ -148,7 +148,7 @@ else
 fi
 
 args=
-parse_arguments `$print_defaults $defaults mysqld server mysqld_safe safe_mysqld`
+parse_arguments `$print_defaults --loose-verbose $defaults mysqld server mysqld_safe safe_mysqld`
 parse_arguments PICK-ARGS-FROM-ARGV "$@"
 
 if test ! -x $ledir/$MYSQLD