diff options
Diffstat (limited to 'vendor/github.com/ethereum/ethash/src/libethash/io_win32.c')
-rw-r--r-- | vendor/github.com/ethereum/ethash/src/libethash/io_win32.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/vendor/github.com/ethereum/ethash/src/libethash/io_win32.c b/vendor/github.com/ethereum/ethash/src/libethash/io_win32.c new file mode 100644 index 000000000..34f1aaa77 --- /dev/null +++ b/vendor/github.com/ethereum/ethash/src/libethash/io_win32.c @@ -0,0 +1,100 @@ +/* + This file is part of ethash. + + ethash is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + ethash is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with ethash. If not, see <http://www.gnu.org/licenses/>. +*/ +/** @file io_win32.c + * @author Lefteris Karapetsas <lefteris@ethdev.com> + * @date 2015 + */ + +#include "io.h" +#include <direct.h> +#include <errno.h> +#include <stdio.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <shlobj.h> + +FILE* ethash_fopen(char const* file_name, char const* mode) +{ + FILE* f; + return fopen_s(&f, file_name, mode) == 0 ? f : NULL; +} + +char* ethash_strncat(char* dest, size_t dest_size, char const* src, size_t count) +{ + return strncat_s(dest, dest_size, src, count) == 0 ? dest : NULL; +} + +bool ethash_mkdir(char const* dirname) +{ + int rc = _mkdir(dirname); + return rc != -1 || errno == EEXIST; +} + +int ethash_fileno(FILE* f) +{ + return _fileno(f); +} + +char* ethash_io_create_filename( + char const* dirname, + char const* filename, + size_t filename_length +) +{ + size_t dirlen = strlen(dirname); + size_t dest_size = dirlen + filename_length + 1; + if (dirname[dirlen] != '\\' || dirname[dirlen] != '/') { + dest_size += 1; + } + char* name = malloc(dest_size); + if (!name) { + return NULL; + } + + name[0] = '\0'; + ethash_strncat(name, dest_size, dirname, dirlen); + if (dirname[dirlen] != '\\' || dirname[dirlen] != '/') { + ethash_strncat(name, dest_size, "\\", 1); + } + ethash_strncat(name, dest_size, filename, filename_length); + return name; +} + +bool ethash_file_size(FILE* f, size_t* ret_size) +{ + struct _stat st; + int fd; + if ((fd = _fileno(f)) == -1 || _fstat(fd, &st) != 0) { + return false; + } + *ret_size = st.st_size; + return true; +} + +bool ethash_get_default_dirname(char* strbuf, size_t buffsize) +{ + static const char dir_suffix[] = "Ethash\\"; + strbuf[0] = '\0'; + if (!SUCCEEDED(SHGetFolderPathA(NULL, CSIDL_LOCAL_APPDATA, NULL, 0, (CHAR*)strbuf))) { + return false; + } + if (!ethash_strncat(strbuf, buffsize, "\\", 1)) { + return false; + } + + return ethash_strncat(strbuf, buffsize, dir_suffix, sizeof(dir_suffix)); +} |