void
rcv_file_hash (struct htlc_conn *htlc)
{
u_int16_t fnlen = 0;
char dir[MAXPATHLEN], filename[NAME_MAX], pathbuf[MAXPATHLEN];
int err;
int fd;
u_int32_t data_len = 0, rsrc_len = 0;
u_int16_t haval_len = 16, haval_passes = 3, hash_types = 0;
u_int8_t md5[32], haval[64], sha1[40];
u_int16_t md5len, sha1len;
#if defined(CONFIG_HFS)
int rfd;
off_t off = -1; /* keep gcc happy */
#endif
dir[0] = 0;
dh_start(htlc)
switch (dh_type) {
case HTLC_DATA_FILE_NAME:
fnlen = dh_len > NAME_MAX ? NAME_MAX - 1 : dh_len;
read_filename(filename, dh_data, fnlen);
break;
case HTLC_DATA_DIR:
if ((err = hldir_to_path(dh, ROOTDIR, dir, dir))) {
snd_strerror(htlc, err);
return;
}
break;
case HTLC_DATA_RFLT:
if (dh_len >= 50)
L32NTOH(data_len, &dh_data[46]);
if (dh_len >= 66)
L32NTOH(rsrc_len, &dh_data[62]);
break;
case HTLC_DATA_HASH_MD5:
hash_types |= 0x01;
break;
case HTLC_DATA_HASH_HAVAL:
hash_types |= 0x02;
if (dh_len == 2) {
haval_len = dh_data[0];
haval_passes = dh_data[1];
}
if (haval_len > 32)
haval_len = 32;
if (haval_passes < 3)
haval_passes = 3;
if (haval_passes > 5)
haval_passes = 5;
break;
case HTLC_DATA_HASH_SHA1:
hash_types |= 0x04;
break;
}
dh_end()
if (!fnlen && !dir[0]) {
hlwrite(htlc, HTLS_HDR_TASK, 1, 1, HTLS_DATA_TASKERROR, 6, "huh?!?");
return;
}
if (dir[0]) {
if (fnlen)
snprintf(pathbuf, sizeof(pathbuf), "%s/%s", dir, filename);
else
strcpy(pathbuf, dir);
} else {
snprintf(pathbuf, sizeof(pathbuf), "%s/%s", ROOTDIR, filename);
}
if (check_dropbox(htlc, pathbuf)) {
snd_strerror(htlc, EPERM);
return;
}
if (log_hash)
hxd_log("%s:%s:%u - hash %s", htlc->name, htlc->login, htlc->uid, pathbuf);
fd = SYS_open(pathbuf, O_RDONLY, 0);
if (fd < 0) {
snd_strerror(htlc, errno);
return;
}
#if defined(CONFIG_HFS)
if (hxd_cfg.operation.hfs) {
rfd = resource_open(pathbuf, O_RDONLY, 0);
if (rfd >= 0) {
off = lseek(rfd, 0, SEEK_CUR);
if (off == (off_t)-1) {
close(rfd);
rfd = -1;
}
}
} else {
rfd = -1;
}
#endif
if (hash_types & 0x01) {
memset(md5, 0, 32);
md5_fd(fd, data_len, &md5[0]);
#if defined(CONFIG_HFS)
if (rfd >= 0)
md5_fd(rfd, rsrc_len, &md5[16]);
#endif
}
if (hash_types & 0x02) {
memset(haval, 0, haval_len * 2);
lseek(fd, 0, SEEK_SET);
haval_fd(fd, data_len, &haval[0], haval_len * 8, haval_passes);
#if defined(CONFIG_HFS)
if (rfd >= 0) {
lseek(rfd, off, SEEK_SET);
haval_fd(rfd, rsrc_len, &haval[haval_len], haval_len * 8, haval_passes);
}
#endif
}
if (hash_types & 0x04) {
memset(sha1, 0, 40);
lseek(fd, 0, SEEK_SET);
sha_fd(fd, data_len, &sha1[0]);
#if defined(CONFIG_HFS)
if (rfd >= 0) {
lseek(rfd, off, SEEK_SET);
sha_fd(rfd, rsrc_len, &sha1[20]);
}
#endif
}
#if defined(CONFIG_HFS)
if (rfd >= 0)
close(rfd);
#endif
close(fd);
md5len = 16;
sha1len = 20;
#if defined(CONFIG_HFS)
if (hxd_cfg.operation.hfs) {
md5len = 32;
haval_len *= 2;
sha1len = 40;
}
#endif
hlwrite(htlc, HTLS_HDR_TASK, 0, 3,
HTLS_DATA_HASH_MD5, md5len, md5,
HTLS_DATA_HASH_HAVAL, haval_len, haval,
HTLS_DATA_HASH_SHA1, sha1len, sha1);
}
char *md5_file(int dirfd, char *filename)
{
_cleanup_close_ int fd = openat(dirfd, filename, O_RDONLY);
return md5_fd(fd);
}
