Spencer/PNG_CC
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2021-10-21 00:53:06 -04:00
parent a2f023d76b
commit 968ca756c3
4 changed files with 83 additions and 47 deletions
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6
src/crc_util.c
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@@ -4,8 +4,8 @@
const long png_signature[8] = { 0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a };
int check_header_length(unsigned char *addr, long offset) {
unsigned int res = 0;
unsigned long check_header_length(unsigned char *addr, long offset) {
unsigned long res = 0;
for( int i = 0; i < 4; i++ ) {
res |= addr[offset+i];
if (i < 3) {
@@ -71,7 +71,7 @@ int create_cc_file(unsigned char *addr, unsigned long file_length) {
}
unsigned char* file_to_char_array(FILE *in_file, size_t* size) {
unsigned int c;
unsigned long c;
unsigned long file_data_cap = 8;
unsigned char* file_data = calloc(file_data_cap, sizeof(unsigned char));