/**
* Rozpoczyna wysyłanie pliku o danej nazwie.
*
* \param sess Struktura sesji
* \param rcpt Numer odbiorcy
* \param filename Nazwa pliku w lokalnym systemie plików
* \param filename1250 Nazwa pliku w kodowaniu CP-1250
* \param hash Skrót SHA-1 pliku (lub \c NULL jeśli ma być wyznaczony)
*
* \return Struktura \c gg_dcc7 lub \c NULL w przypadku błędu
*
* \ingroup dcc7
*/
struct gg_dcc7 *gg_dcc7_send_file(struct gg_session *sess, uin_t rcpt, const char *filename, const char *filename1250, const char *hash)
{
struct gg_dcc7 *dcc = NULL;
const char *tmp;
char hash_buf[GG_DCC7_HASH_LEN];
struct stat st;
int fd = -1;
gg_debug_session(sess, GG_DEBUG_FUNCTION, "** gg_dcc7_send_file(%p, %d, \"%s\", %p)\n", sess, rcpt, filename, hash);
if (!sess || !rcpt || !filename) {
gg_debug_session(sess, GG_DEBUG_MISC, "// gg_dcc7_send_file() invalid parameters\n");
errno = EINVAL;
goto fail;
}
if (!filename1250)
filename1250 = filename;
if (stat(filename, &st) == -1) {
gg_debug_session(sess, GG_DEBUG_MISC, "// gg_dcc7_send_file() stat() failed (%s)\n", strerror(errno));
goto fail;
}
if ((st.st_mode & S_IFDIR)) {
gg_debug_session(sess, GG_DEBUG_MISC, "// gg_dcc7_send_file() that's a directory\n");
errno = EINVAL;
goto fail;
}
if ((fd = open(filename, O_RDONLY)) == -1) {
gg_debug_session(sess, GG_DEBUG_MISC, "// gg_dcc7_send_file() open() failed (%s)\n", strerror(errno));
goto fail;
}
if (!hash) {
if (gg_file_hash_sha1(fd, (uint8_t*) hash_buf) == -1)
goto fail;
hash = hash_buf;
}
if ((tmp = strrchr(filename1250, '/')))
filename1250 = tmp + 1;
if (!(dcc = gg_dcc7_send_file_common(sess, rcpt, fd, st.st_size, filename1250, hash, 1)))
goto fail;
return dcc;
fail:
if (fd != -1) {
int errsv = errno;
close(fd);
errno = errsv;
}
free(dcc);
return NULL;
}
static void test_file_hash(unsigned int megs, const char *expect)
{
int fd;
size_t i;
char name[32];
uint8_t result[20];
strcpy(name, "hashdata.XXXXXX");
fd = gg_mkstemp(name);
if (fd == -1) {
fprintf(stderr, "Unable to create temporary file\n");
exit(1);
}
for (i = 1; i <= megs; i++) {
unsigned char j;
if (lseek(fd, i * 1048756 - 1, SEEK_SET) == (off_t) -1) {
fprintf(stderr, "Unable to seek past end of file\n");
goto fail;
}
j = i;
if (write(fd, &j, sizeof(j)) != sizeof(j)) {
fprintf(stderr, "Unable to write past end of file\n");
goto fail;
}
}
if (gg_file_hash_sha1(fd, result) == -1) {
fprintf(stderr, "gg_file_hash_sha1() failed for %d megs\n", megs);
goto fail;
}
if (!sha1_compare(result, expect)) {
printf("hash failed for %d mesgs, expected %s, got %s\n", megs, expect, sha1_to_string(result));
goto fail;
}
close(fd);
unlink(name);
return;
fail:
close(fd);
unlink(name);
exit(1);
}
