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| author | Tavian Barnes <tavianator@gmail.com> | 2010-04-17 12:27:50 -0400 |
|---|---|---|
| committer | Tavian Barnes <tavianator@gmail.com> | 2010-04-17 12:27:50 -0400 |
| commit | 8fbe3e7d3325089baf551096983217b4963c789b (patch) | |
| tree | 8db29e87faf2e3bdf9ac6bc427ab22edb131951d /dimension | |
| parent | cf9929b20d4d1230c49dad71f74051067aa4a399 (diff) | |
| download | dimension-8fbe3e7d3325089baf551096983217b4963c789b.tar.xz | |
Validate command line arguments.
Diffstat (limited to 'dimension')
| -rw-r--r-- | dimension/main.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/dimension/main.c b/dimension/main.c index c9bbd37..89e34af 100644 --- a/dimension/main.c +++ b/dimension/main.c @@ -30,8 +30,8 @@ static char *output = NULL, *input = NULL; static bool free_output = false; -static unsigned int width = 640, height = 480; -static unsigned int nthreads = 0; +static int width = 640, height = 480; +static int nthreads = 0; static dmnsn_quality quality = DMNSN_RENDER_FULL; static int tokenize = 0, parse = 0; @@ -93,8 +93,8 @@ main(int argc, char **argv) { case 'w': { char *endptr; - width = strtoul(optarg, &endptr, 10); - if (*endptr != '\0' || endptr == optarg) { + width = strtol(optarg, &endptr, 10); + if (*endptr != '\0' || endptr == optarg || width <= 0) { fprintf(stderr, "Invalid argument to --width!\n"); print_usage(stderr, argv[0]); return EXIT_FAILURE; @@ -104,8 +104,8 @@ main(int argc, char **argv) { case 'h': { char *endptr; - height = strtoul(optarg, &endptr, 10); - if (*endptr != '\0' || endptr == optarg) { + height = strtol(optarg, &endptr, 10); + if (*endptr != '\0' || endptr == optarg || height <= 0) { fprintf(stderr, "Invalid argument to --height!\n"); print_usage(stderr, argv[0]); return EXIT_FAILURE; @@ -116,8 +116,8 @@ main(int argc, char **argv) { case DMNSN_OPT_THREADS: { char *endptr; - nthreads = strtoul(optarg, &endptr, 10); - if (*endptr != '\0' || endptr == optarg) { + nthreads = strtol(optarg, &endptr, 10); + if (*endptr != '\0' || endptr == optarg || nthreads <= 0) { fprintf(stderr, "Invalid argument to --threads!\n"); print_usage(stderr, argv[0]); return EXIT_FAILURE; |