Fix some memory allocation problems

diff --git a/editors/sed.c b/editors/sed.c
index 75ed53e..6dbb1fb 100644 (file)
--- 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++;
                }