Function precompose_utf8_readdir

compat/precompose_utf8.c:135–193

}

struct dirent_prec_psx *precompose_utf8_readdir(PREC_DIR *prec_dir)
{
	struct repo_config_values *cfg = repo_config_values(the_repository);
	struct dirent *res;

	res = readdir(prec_dir->dirp);
	if (res) {
		size_t namelenz = strlen(res->d_name) + 1; /* \0 */
		size_t new_maxlen = namelenz;

		int ret_errno = errno;

		if (new_maxlen > prec_dir->dirent_nfc->max_name_len) {
			size_t new_len = sizeof(dirent_prec_psx) + new_maxlen -
				sizeof(prec_dir->dirent_nfc->d_name);

			prec_dir->dirent_nfc = xrealloc(prec_dir->dirent_nfc, new_len);
			prec_dir->dirent_nfc->max_name_len = new_maxlen;
		}

		prec_dir->dirent_nfc->d_ino  = res->d_ino;
		prec_dir->dirent_nfc->d_type = res->d_type;

		if ((cfg->precomposed_unicode == 1) && has_non_ascii(res->d_name, (size_t)-1, NULL)) {
			if (prec_dir->ic_precompose == (iconv_t)-1) {
				die("iconv_open(%s,%s) failed, but needed:\n"
						"    precomposed unicode is not supported.\n"
						"    If you want to use decomposed unicode, run\n"
						"    \"git config core.precomposeunicode false\"\n",
						repo_encoding, path_encoding);
			} else {
				iconv_ibp	cp = (iconv_ibp)res->d_name;
				size_t inleft = namelenz;
				char *outpos = &prec_dir->dirent_nfc->d_name[0];
				size_t outsz = prec_dir->dirent_nfc->max_name_len;
				errno = 0;
				iconv(prec_dir->ic_precompose, &cp, &inleft, &outpos, &outsz);
				if (errno || inleft) {
					/*
					 * iconv() failed and errno could be E2BIG, EILSEQ, EINVAL, EBADF
					 * MacOS X avoids illegal byte sequences.
					 * If they occur on a mounted drive (e.g. NFS) it is not worth to
					 * die() for that, but rather let the user see the original name
					*/
					namelenz = 0; /* trigger strlcpy */
				}
			}
		} else
			namelenz = 0;

		if (!namelenz)
			strlcpy(prec_dir->dirent_nfc->d_name, res->d_name,
							prec_dir->dirent_nfc->max_name_len);

		errno = ret_errno;
		return prec_dir->dirent_nfc;
	}
	return NULL;