/**
* Calculate hash sums simultaneously, according to the info->sums_flags.
* Calculated hashes are stored in info->rctx.
*
* @param info file data. The info->full_path can be "-" to denote stdin
* @return 0 on success, -1 on fail with error code stored in errno
*/
static int calc_sums(struct file_info *info)
{
FILE* fd = stdin; /* stdin */
int res;
uint64_t initial_size;
if(IS_DASH_STR(info->full_path)) {
info->print_path = "(stdin)";
#ifdef _WIN32
/* using 0 instead of _fileno(stdin). _fileno() is undefined under 'gcc -ansi' */
if(setmode(0, _O_BINARY) < 0) {
return -1;
}
#endif
} else {
struct rsh_stat_struct stat_buf;
/* skip non-existing files */
if(rsh_stat(info->full_path, &stat_buf) < 0) {
return -1;
}
if((opt.mode & (MODE_CHECK | MODE_CHECK_EMBEDDED)) && S_ISDIR(stat_buf.st_mode)) {
errno = EISDIR;
return -1;
}
info->size = stat_buf.st_size; /* total size, in bytes */
IF_WINDOWS(win32_set_filesize64(info->full_path, &info->size)); /* set correct filesize for large files under win32 */
if(!info->sums_flags) return 0;
/* skip files opened with exclusive rights without reporting an error */
fd = rsh_fopen_bin(info->full_path, "rb");
if(!fd) {
return -1;
}
}
re_init_rhash_context(info);
initial_size = info->rctx->msg_size;
if(percents_output->update != 0) {
rhash_set_callback(info->rctx, (rhash_callback_t)percents_output->update, info);
}
/* read and hash file content */
if((res = rhash_file_update(info->rctx, fd)) != -1) {
if(!opt.bt_batch_file) {
rhash_final(info->rctx, 0); /* finalize hashing */
}
}
info->size = info->rctx->msg_size - initial_size;
rhash_data.total_size += info->size;
if(fd != stdin) fclose(fd);
return res;
}
/**
* Fill file information in the file_t structure.
*
* @param file the file information
* @param use_lstat nonzero if lstat() shall be used
* @return 0 on success, -1 on error
*/
int rsh_file_stat2(file_t* file, int use_lstat)
{
struct rsh_stat_struct st;
int res = -1;
#ifdef _WIN32
int i;
(void)use_lstat; /* ignore on windows */
if(file->wpath) {
free(file->wpath);
file->wpath = NULL;
}
for(i = 0; i < 2; i++) {
wchar_t* wpath = c2w(file->path, i);
if(wpath == NULL) continue;
res = clib_wstat(wpath, &st);
if(res == 0 || errno != ENOENT) {
file->wpath = wpath;
file->size = st.st_size;
/* set correct filesize for large files under win32 */
win32_set_filesize64(file->path, &file->size);
break;
}
free(wpath);
}
#else
res = (use_lstat ? lstat(file->path, &st) :
rsh_stat(file->path, &st));
file->size = st.st_size;
#endif /* _WIN32 */
file->mtime = st.st_mtime;
return res;
}
