Fix some memory allocation problems

git-svn-id: svn://busybox.net/trunk/busybox@7499 69ca8d6d-28ef-0310-b511-8ec308f3f277

1 files changed, 7 insertions, 2 deletions

diff --git a/editors/sed.c b/editors/sed.c
index 75ed53eb7..6dbb1fb8f 100644
--- a/editors/sed.c
+++ b/editors/sed.c
@@ -1057,7 +1057,11 @@ static void process_file(FILE * file)
                                                 hold_space_size = strlen(hold_space);
                                         }
                                         hold_space = xrealloc(hold_space, hold_space_size + strlen(pattern_space) + 2);
-                                        strcat(hold_space, "\n");
+                                        if (hold_space_size) {
+                                                strcat(hold_space, "\n");
+                                        } else {
+                                                hold_space[0] = '\n';
+                                        }
                                         strcat(hold_space, pattern_space); 
                                         break;
                                 }
@@ -1103,6 +1107,7 @@ static void process_file(FILE * file)
 
                         if (deleted)
                                 break;
+
                 }
 
                 /* we will print the line unless we were told to be quiet or if the
@@ -1155,7 +1160,7 @@ extern int sed_main(int argc, char **argv)
                 else {
                         char *str_cmd = strdup(argv[optind]);
 
-                        add_cmd_str(strdup(str_cmd));
+                        add_cmd_str(strd_cmd);
                         free(str_cmd);
                         optind++;
                 }