/*
* J A R _ d i g e s t _ f i l e
*
* Calculates the MD5 and SHA1 digests for a file
* present on disk, and returns these in JAR_Digest struct.
*
*/
int
JAR_digest_file (char *filename, JAR_Digest *dig)
{
JAR_FILE fp;
PK11Context *md5 = 0;
PK11Context *sha1 = 0;
unsigned char *buf = (unsigned char *) PORT_ZAlloc (FILECHUNQ);
int num;
unsigned int md5_length, sha1_length;
if (buf == NULL) {
/* out of memory */
return JAR_ERR_MEMORY;
}
if ((fp = JAR_FOPEN (filename, "rb")) == 0) {
/* perror (filename); FIX XXX XXX XXX XXX XXX XXX */
PORT_Free (buf);
return JAR_ERR_FNF;
}
md5 = PK11_CreateDigestContext (SEC_OID_MD5);
sha1 = PK11_CreateDigestContext (SEC_OID_SHA1);
if (md5 == NULL || sha1 == NULL) {
/* can't generate digest contexts */
PORT_Free (buf);
JAR_FCLOSE (fp);
return JAR_ERR_GENERAL;
}
PK11_DigestBegin (md5);
PK11_DigestBegin (sha1);
while (1) {
if ((num = JAR_FREAD (fp, buf, FILECHUNQ)) == 0)
break;
PK11_DigestOp (md5, buf, num);
PK11_DigestOp (sha1, buf, num);
}
PK11_DigestFinal (md5, dig->md5, &md5_length, MD5_LENGTH);
PK11_DigestFinal (sha1, dig->sha1, &sha1_length, SHA1_LENGTH);
PK11_DestroyContext (md5, PR_TRUE);
PK11_DestroyContext (sha1, PR_TRUE);
PORT_Free (buf);
JAR_FCLOSE (fp);
return 0;
}
/*
* J A R _ d e s t r o y
*/
void PR_CALLBACK
JAR_destroy(JAR *jar)
{
PORT_Assert(jar != NULL);
if (jar == NULL)
return;
if (jar->fp)
JAR_FCLOSE((PRFileDesc *)jar->fp);
if (jar->url)
PORT_Free(jar->url);
if (jar->filename)
PORT_Free(jar->filename);
if (jar->globalmeta)
PORT_Free(jar->globalmeta);
/* Free the linked list elements */
jar_destroy_list(jar->manifest);
ZZ_DestroyList(jar->manifest);
jar_destroy_list(jar->hashes);
ZZ_DestroyList(jar->hashes);
jar_destroy_list(jar->phy);
ZZ_DestroyList(jar->phy);
jar_destroy_list(jar->metainfo);
ZZ_DestroyList(jar->metainfo);
jar_destroy_list(jar->signers);
ZZ_DestroyList(jar->signers);
PORT_Free(jar);
}
