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-rw-r--r--editors/sed.c8
-rw-r--r--testsuite/sed/sed-accepts-blanks-before-command1
2 files changed, 9 insertions, 0 deletions
diff --git a/editors/sed.c b/editors/sed.c
index 7f76584..fe1c0db 100644
--- a/editors/sed.c
+++ b/editors/sed.c
@@ -414,6 +414,10 @@ static char *parse_cmd_str(struct sed_cmd * const sed_cmd, const char *const cmd
* part1 part2 part3
*/
+ /* skip initial whitespace */
+ while (isspace(cmdstr[idx]))
+ idx++;
+
/* first part (if present) is an address: either a number or a /regex/ */
if (isdigit(cmdstr[idx]) || cmdstr[idx] == '/')
idx = get_address(sed_cmd, cmdstr, &sed_cmd->beg_line, &sed_cmd->beg_match);
@@ -422,6 +426,10 @@ static char *parse_cmd_str(struct sed_cmd * const sed_cmd, const char *const cmd
if (cmdstr[idx] == ',')
idx += get_address(sed_cmd, &cmdstr[++idx], &sed_cmd->end_line, &sed_cmd->end_match);
+ /* skip whitespace before the command */
+ while (isspace(cmdstr[idx]))
+ idx++;
+
/* last part (mandatory) will be a command */
if (cmdstr[idx] == '\0')
error_msg_and_die("missing command");
diff --git a/testsuite/sed/sed-accepts-blanks-before-command b/testsuite/sed/sed-accepts-blanks-before-command
new file mode 100644
index 0000000..9597c2f
--- /dev/null
+++ b/testsuite/sed/sed-accepts-blanks-before-command
@@ -0,0 +1 @@
+busybox sed -e '1 d' </dev/null