From 011d43746faf1bb2a6619e1246143724eb253b52 Mon Sep 17 00:00:00 2001 From: Ian Fan Date: Sun, 15 Jul 2018 15:36:51 +0100 Subject: Add error handling for getting config file size --- sway/config.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'sway') diff --git a/sway/config.c b/sway/config.c index b8c874e6..2c051146 100644 --- a/sway/config.c +++ b/sway/config.c @@ -561,12 +561,17 @@ static char *expand_line(const char *block, const char *line, bool add_brace) { bool read_config(FILE *file, struct sway_config *config) { bool reading_main_config = false; char *this_config = NULL; - unsigned long config_size = 0; + size_t config_size = 0; if (config->current_config == NULL) { reading_main_config = true; - fseek(file, 0, SEEK_END); - config_size = ftell(file); + int ret_seek = fseek(file, 0, SEEK_END); + long ret_tell = ftell(file); + if (ret_seek == -1 || ret_tell == -1) { + wlr_log(WLR_ERROR, "Unable to get size of config file"); + return false; + } + config_size = ret_tell; rewind(file); config->current_config = this_config = calloc(1, config_size + 1); -- cgit v1.2.3-54-g00ecf