ntpd: default to FEATURE_NTP_AUTH=y
[oweals/busybox.git] / editors / sed.c
index 7ed9937d23ce81891c4e060a33b13aeef94239cd..1054c1302399d75284f0bb8f72bfc7a877865574 100644 (file)
@@ -12,7 +12,6 @@
  *
  * Licensed under GPLv2, see file LICENSE in this source tree.
  */
-
 /* Code overview.
  *
  * Files are laid out to avoid unnecessary function declarations.  So for
@@ -29,7 +28,6 @@
  *
  * sed_main() is where external code calls into this, with a command line.
  */
-
 /* Supported features and commands in this version of sed:
  *
  * - comments ('#')
@@ -55,7 +53,6 @@
  * http://pubs.opengroup.org/onlinepubs/9699919799/utilities/sed.html
  * http://sed.sourceforge.net/sedfaq3.html
  */
-
 //config:config SED
 //config:      bool "sed (12 kb)"
 //config:      default y
 //config:      sed is used to perform text transformations on a file
 //config:      or input from a pipeline.
 
-//kbuild:lib-$(CONFIG_SED) += sed.o
-
 //applet:IF_SED(APPLET(sed, BB_DIR_BIN, BB_SUID_DROP))
 
+//kbuild:lib-$(CONFIG_SED) += sed.o
+
 //usage:#define sed_trivial_usage
 //usage:       "[-i[SFX]] [-nrE] [-f FILE]... [-e CMD]... [FILE]...\n"
 //usage:       "or: sed [-i[SFX]] [-nrE] CMD [FILE]..."
@@ -183,18 +180,23 @@ static void sed_free_and_close_stuff(void)
                if (sed_cmd->sw_file)
                        fclose(sed_cmd->sw_file);
 
-               if (sed_cmd->beg_match) {
-                       regfree(sed_cmd->beg_match);
-                       free(sed_cmd->beg_match);
-               }
-               if (sed_cmd->end_match) {
-                       regfree(sed_cmd->end_match);
-                       free(sed_cmd->end_match);
-               }
-               if (sed_cmd->sub_match) {
-                       regfree(sed_cmd->sub_match);
-                       free(sed_cmd->sub_match);
-               }
+               /* Used to free regexps, but now there is code
+                * in get_address() which can reuse a regexp
+                * for constructs as /regexp/cmd1;//cmd2
+                * leading to double-frees here:
+                */
+               //if (sed_cmd->beg_match) {
+               //      regfree(sed_cmd->beg_match);
+               //      free(sed_cmd->beg_match);
+               //}
+               //if (sed_cmd->end_match) {
+               //      regfree(sed_cmd->end_match);
+               //      free(sed_cmd->end_match);
+               //}
+               //if (sed_cmd->sub_match) {
+               //      regfree(sed_cmd->sub_match);
+               //      free(sed_cmd->sub_match);
+               //}
                free(sed_cmd->string);
                free(sed_cmd);
                sed_cmd = sed_cmd_next;
@@ -991,7 +993,7 @@ static void flush_append(char *last_puts_char)
 static char *get_next_line(char *gets_char, char *last_puts_char)
 {
        char *temp = NULL;
-       int len;
+       size_t len;
        char gc;
 
        flush_append(last_puts_char);