*
* Licensed under GPLv2, see file LICENSE in this source tree.
*/
-
/* Code overview.
*
* Files are laid out to avoid unnecessary function declarations. So for
*
* sed_main() is where external code calls into this, with a command line.
*/
-
/* Supported features and commands in this version of sed:
*
* - comments ('#')
* 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]..."
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;
if (*my_str == '\\')
delimiter = *++pos;
next = index_of_next_unescaped_regexp_delim(delimiter, ++pos);
- temp = copy_parsing_escapes(pos, next);
- *regex = xzalloc(sizeof(regex_t));
- xregcomp(*regex, temp, G.regex_type);
- free(temp);
+ if (next != 0) {
+ temp = copy_parsing_escapes(pos, next);
+ G.previous_regex_ptr = *regex = xzalloc(sizeof(regex_t));
+ xregcomp(*regex, temp, G.regex_type);
+ free(temp);
+ } else {
+ *regex = G.previous_regex_ptr;
+ if (!G.previous_regex_ptr)
+ bb_error_msg_and_die("no previous regexp");
+ }
/* Move position to next character after last delimiter */
pos += (next+1);
}
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);