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The size of xor_table is known and fixed, no need to calculate it 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@22958 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
rtogni 2007-04-09 19:30:32 +00:00
parent 1ff72c15b5
commit 839c996198
1 changed files with 6 additions and 8 deletions
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14
stream/realrtsp/real.c
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@ -49,12 +49,14 @@
#define LOG #define LOG
*/ */
static const unsigned char xor_table[] = { #define XOR_TABLE_SIZE 45
static const unsigned char xor_table[XOR_TABLE_SIZE] = {
0x05, 0x18, 0x74, 0xd0, 0x0d, 0x09, 0x02, 0x53, 0x05, 0x18, 0x74, 0xd0, 0x0d, 0x09, 0x02, 0x53,
0xc0, 0x01, 0x05, 0x05, 0x67, 0x03, 0x19, 0x70, 0xc0, 0x01, 0x05, 0x05, 0x67, 0x03, 0x19, 0x70,
0x08, 0x27, 0x66, 0x10, 0x10, 0x72, 0x08, 0x09, 0x08, 0x27, 0x66, 0x10, 0x10, 0x72, 0x08, 0x09,
0x63, 0x11, 0x03, 0x71, 0x08, 0x08, 0x70, 0x02, 0x63, 0x11, 0x03, 0x71, 0x08, 0x08, 0x70, 0x02,
0x10, 0x57, 0x05, 0x18, 0x54, 0x00, 0x00, 0x00 }; 0x10, 0x57, 0x05, 0x18, 0x54 };
#define BUF_SIZE 4096 #define BUF_SIZE 4096
@ -103,7 +105,7 @@ static void calc_response_string (char *result, char *challenge) {
static void real_calc_response_and_checksum (char *response, char *chksum, char *challenge) { static void real_calc_response_and_checksum (char *response, char *chksum, char *challenge) {
int ch_len, table_len, resp_len; int ch_len, resp_len;
int i; int i;
char *ptr; char *ptr;
char buf[128]; char buf[128];
@ -136,12 +138,8 @@ static void real_calc_response_and_checksum (char *response, char *chksum, char
memcpy(ptr, challenge, ch_len); memcpy(ptr, challenge, ch_len);
} }
table_len = strlen(xor_table);
if (table_len > 56) table_len=56;
/* xor challenge bytewise with xor_table */ /* xor challenge bytewise with xor_table */
for (i=0; i<table_len; i++) for (i=0; i<XOR_TABLE_SIZE; i++)
ptr[i] = ptr[i] ^ xor_table[i]; ptr[i] = ptr[i] ^ xor_table[i];
calc_response_string (response, buf); calc_response_string (response, buf);