Better return values on error.

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@1257 ec53bebd-3082-4978-b11e-865c3cabbd6b

lib/krb5/config_file.y

@@ -130,44 +130,44 @@ value	: STRING
 
 static int yylex(void)
 {
-  int c;
-  static char save;
-  static char yytext[1024];
-  char *p = yytext;
-  int type = 0;
-  while(1){
-    if(save){
-      c = save;
-      save = 0;
-    }else
-      c = getc(F);
-    if(c == EOF)
-      break;
-    if(isspace(c))
-      if(type)
-	break; /* end of token */
-      else 
-	continue; /* eat ws */
-    if(strchr("[]={}", c)){
-      if(type)
-	save = c;
-      else{
-	return c;
-      }
-      break;
+    int c;
+    static char save;
+    static char yytext[1024];
+    char *p = yytext;
+    int type = 0;
+    while(1){
+	if(save){
+	    c = save;
+	    save = 0;
+	}else
+	    c = getc(F);
+	if(c == EOF)
+	    break;
+	if(isspace(c))
+	    if(type)
+		break; /* end of token */
+	    else 
+		continue; /* eat ws */
+	if(strchr("[]={}", c)){
+	    if(type)
+		save = c;
+	    else{
+		return c;
+	    }
+	    break;
+	}
+	*p++ = c;
+	type = STRING;
+	continue;
     }
-    *p++ = c;
-    type = STRING;
-    continue;
-  }
-  *p = 0;
-  yylval.s = strdup(yytext);
-  return type;
+    *p = 0;
+    yylval.s = strdup(yytext);
+    return type;
 }
 
 void yyerror(char *s)
 {
-	printf("yyerror: %s\n", s);
+    printf("yyerror: %s\n", s);
 }
 
 
@@ -176,10 +176,10 @@ void yyerror(char *s)
 static void
 free_config_file(k5_cfile *cf)
 {
-  if(!cf)
-    return;
-  FREE(cf->filename);
-  free(cf);
+    if(!cf)
+	return;
+    FREE(cf->filename);
+    free(cf);
 }
 
 static void free_config_relation(krb5_config_relation *rel);
@@ -187,95 +187,95 @@ static void free_config_relation(krb5_config_relation *rel);
 static void
 free_config_value(krb5_config_value val)
 {
-  if(val.type == krb5_config_value_string)
-    FREE(val.data.string);
-  else if(val.type == krb5_config_value_list)
-    free_config_relation(val.data.relations);
-  else
-    fprintf(stderr, "free_config_value: krb5_config_value "
-	    "with bad type passed (%d)\n", val.type);
+    if(val.type == krb5_config_value_string)
+	FREE(val.data.string);
+    else if(val.type == krb5_config_value_list)
+	free_config_relation(val.data.relations);
+    else
+	fprintf(stderr, "free_config_value: krb5_config_value "
+		"with bad type passed (%d)\n", val.type);
 }
 
 static void
 free_config_relation(krb5_config_relation *rel)
 {
-  if(!rel)
-    return;
-  free_config_value(rel->value);
-  free_config_relation(rel->next);
-  FREE(rel);
+    if(!rel)
+	return;
+    free_config_value(rel->value);
+    free_config_relation(rel->next);
+    FREE(rel);
 }
 
 static void
 free_config_section(krb5_config_section *sec)
 {
-  if(!sec)
-    return;
-  FREE(sec->name);
-  free_config_relation(sec->relations);
-  free_config_section(sec->next);
-  FREE(sec);
+    if(!sec)
+	return;
+    FREE(sec->name);
+    free_config_relation(sec->relations);
+    free_config_section(sec->next);
+    FREE(sec);
 }
 
 
 void
 krb5_free_config_file(k5_cfile *cf)
 {
-  free_config_file(cf);
+    free_config_file(cf);
 }
 
 krb5_error_code
 krb5_get_config_tag(k5_cfile *cf, const char *tag, char **value)
 {
-  char *str;
-  char *p;
-  krb5_config_section *s;
-  krb5_config_relation *r;
+    char *str;
+    char *p;
+    krb5_config_section *s;
+    krb5_config_relation *r;
   
-  str = strdup(tag);
-  p = strtok(str, " \t");
-  if(!p)
-    return ENOENT;
-  for(s = cf->sections; s; s = s->next){
-    if(!strcmp(s->name, p)){
-      p = strtok(NULL, " \t");
-      for(r = s->relations; r;){
-	if(!strcmp(r->tag, p)){
-	  if(r->value.type == krb5_config_value_string){
-	    *value = strdup(r->value.data.string);
-	    free(str);
-	    return 0;
-	  }else{
+    str = strdup(tag);
+    p = strtok(str, " \t");
+    if(!p)
+	return KRB5_REALM_UNKNOWN;
+    for(s = cf->sections; s; s = s->next){
+	if(!strcmp(s->name, p)){
 	    p = strtok(NULL, " \t");
-	    r = r->value.data.relations;
-	    continue;
-	  }
+	    for(r = s->relations; r;){
+		if(!strcmp(r->tag, p)){
+		    if(r->value.type == krb5_config_value_string){
+			*value = strdup(r->value.data.string);
+			free(str);
+			return 0;
+		    }else{
+			p = strtok(NULL, " \t");
+			r = r->value.data.relations;
+			continue;
+		    }
+		}
+		r = r->next;
+	    }
 	}
-	r = r->next;
-      }
     }
-  }
-  return ENOENT;
+    return KRB5_REALM_UNKNOWN;
 }
 
 krb5_error_code
 krb5_parse_config_file(k5_cfile **cfile, const char *filename)
 {
-  krb5_error_code ret;
-  if(!filename)
-    filename = krb5_config_file;
-  F = fopen(filename, "r");
-  if(F == NULL)
-    return errno;
-  cf = ALLOC(1, k5_cfile);
-  if(!cf)
+    krb5_error_code ret;
+    if(!filename)
+	filename = krb5_config_file;
+    F = fopen(filename, "r");
+    if(F == NULL)
+	return errno;
+    cf = ALLOC(1, k5_cfile);
+    if(!cf)
 	return ENOMEM;
-  ret = yyparse();
+    ret = yyparse();
 
-  fclose(F);
-  if(ret)
+    fclose(F);
+    if(ret)
 	krb5_free_config_file(cf);
-  else
+    else
 	*cfile = cf;
-  return ret;
+    return ret;
 }