diff options
| -rw-r--r-- | common/stringop.c | 3 | ||||
| -rw-r--r-- | sway/commands/output/background.c | 3 |
2 files changed, 6 insertions, 0 deletions
diff --git a/common/stringop.c b/common/stringop.c index 8af0d60f..709be684 100644 --- a/common/stringop.c +++ b/common/stringop.c @@ -258,6 +258,9 @@ int unescape_string(char *string) { } char *join_args(char **argv, int argc) { + if (!sway_assert(argc > 0, "argc should be positive")) { + return NULL; + } int len = 0, i; for (i = 0; i < argc; ++i) { len += strlen(argv[i]) + 1; diff --git a/sway/commands/output/background.c b/sway/commands/output/background.c index f65904bb..5a15ed0f 100644 --- a/sway/commands/output/background.c +++ b/sway/commands/output/background.c @@ -61,6 +61,9 @@ struct cmd_results *output_cmd_background(int argc, char **argv) { return cmd_results_new(CMD_INVALID, "Missing background scaling mode."); } + if (j == 0) { + return cmd_results_new(CMD_INVALID, "Missing background file"); + } wordexp_t p = {0}; char *src = join_args(argv, j); |