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better check for bad colours

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Leon Henrik Plickat 2023-08-14 14:48:35 +02:00
commit a8e6c36941
1 changed files with 6 additions and 0 deletions
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wayneko.c
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@ -911,6 +911,12 @@ static void timespec_diff (struct timespec *a, struct timespec *b, struct timesp
static bool colour_from_hex (pixman_color_t *colour, const char *hex) static bool colour_from_hex (pixman_color_t *colour, const char *hex)
{ {
if ( strlen(hex) != strlen("0xRRGGBBAA") && strlen(hex) != strlen("0xRRGGBB") )
{
fprintf(stderr, "ERROR: Invalid colour: %s\n", hex);
return false;
}
uint16_t r = 0, g = 0, b = 0, a = 255; uint16_t r = 0, g = 0, b = 0, a = 255;
if ( 4 != sscanf(hex, "0x%02hx%02hx%02hx%02hx", &r, &g, &b, &a) if ( 4 != sscanf(hex, "0x%02hx%02hx%02hx%02hx", &r, &g, &b, &a)