summaryrefslogtreecommitdiff
path: root/Master/texmf-dist/doc/latex/gatech-thesis/julesverne/bellswhistles/code/crc32.c
diff options
context:
space:
mode:
Diffstat (limited to 'Master/texmf-dist/doc/latex/gatech-thesis/julesverne/bellswhistles/code/crc32.c')
-rw-r--r--Master/texmf-dist/doc/latex/gatech-thesis/julesverne/bellswhistles/code/crc32.c69
1 files changed, 0 insertions, 69 deletions
diff --git a/Master/texmf-dist/doc/latex/gatech-thesis/julesverne/bellswhistles/code/crc32.c b/Master/texmf-dist/doc/latex/gatech-thesis/julesverne/bellswhistles/code/crc32.c
deleted file mode 100644
index ffd81013347..00000000000
--- a/Master/texmf-dist/doc/latex/gatech-thesis/julesverne/bellswhistles/code/crc32.c
+++ /dev/null
@@ -1,69 +0,0 @@
-// Calculate a CRC 32 checksum.
-
-#include <malloc.h>
-#include <stdio.h>
-
-// LAST MODIFIED:[7-28-93]
-
-// Usage:
-// unsigned long crc = -1L
-// crc = crc32(buffer, length, crc)
-
-unsigned long crc32 (void *buffer, unsigned int count, unsigned long crc);
-static int BuildCRCTable (void);
-
-static unsigned long *CRCTable; // Table constructed for fast lookup.
-
-#define CRC32_POLYNOMIAL 0xEDB88320L
-
-// Initialize the CRC calculation table
-//
-static int
-BuildCRCTable (void)
-{
- int i, j;
- unsigned long crc;
-
- CRCTable = malloc (256 * sizeof (unsigned long));
- if (CRCTable == NULL)
- {
- fprintf (stderr, "Can't malloc space for CRC table in file %s\n",
- __FILE__);
- return -1L;
- }
-
- for (i = 0; i <= 255; i++)
- {
- crc = i;
- for (j = 8; j > 0; j--)
- if (crc & 1)
- crc = (crc >> 1) ^ CRC32_POLYNOMIAL;
- else
- crc >>= 1;
- CRCTable[i] = crc;
- }
- return 0;
-}
-
-unsigned long
-crc32 (void *buffer, unsigned int count, unsigned long crc)
-{
- unsigned long temp1, temp2;
- static int firsttime = 1;
- unsigned char *p = (unsigned char *) buffer;
-
- if (firsttime)
- {
- if (BuildCRCTable ())
- return -1;
- firsttime = 0;
- }
-
- while (count-- != 0)
- {
- temp1 = (crc >> 8) & 0x00FFFFFFL;
- temp2 = CRCTable[((int) crc ^ *p++) & 0xFF];
- crc = temp1 ^ temp2;
- }
- return crc;
-}