thodg/libgit2/src/util/win32/dir.c
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Hash : c3b7ace9
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Date : 2021-11-14T16:43:53
refactor: make util an object library Instead of simply including the utility files directly, make them a cmake object library for easy reusability between other projects within libgit2. Now the top-level `src` is responsible for platform selection, while the next-level `libgit2` and `util` configurations are responsible for identifying what objects they include.
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src/util/win32/dir.c
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/* * Copyright (C) the libgit2 contributors. All rights reserved. * * This file is part of libgit2, distributed under the GNU GPL v2 with * a Linking Exception. For full terms see the included COPYING file. */ #include "dir.h" #define GIT__WIN32_NO_WRAP_DIR #include "posix.h" git__DIR *git__opendir(const char *dir) { git_win32_path filter_w; git__DIR *new = NULL; size_t dirlen, alloclen; if (!dir || !git_win32__findfirstfile_filter(filter_w, dir)) return NULL; dirlen = strlen(dir); if (GIT_ADD_SIZET_OVERFLOW(&alloclen, sizeof(*new), dirlen) || GIT_ADD_SIZET_OVERFLOW(&alloclen, alloclen, 1) || !(new = git__calloc(1, alloclen))) return NULL; memcpy(new->dir, dir, dirlen); new->h = FindFirstFileW(filter_w, &new->f); if (new->h == INVALID_HANDLE_VALUE) { git_error_set(GIT_ERROR_OS, "could not open directory '%s'", dir); git__free(new); return NULL; } new->first = 1; return new; } int git__readdir_ext( git__DIR *d, struct git__dirent *entry, struct git__dirent **result, int *is_dir) { if (!d || !entry || !result || d->h == INVALID_HANDLE_VALUE) return -1; *result = NULL; if (d->first) d->first = 0; else if (!FindNextFileW(d->h, &d->f)) { if (GetLastError() == ERROR_NO_MORE_FILES) return 0; git_error_set(GIT_ERROR_OS, "could not read from directory '%s'", d->dir); return -1; } /* Convert the path to UTF-8 */ if (git_win32_path_to_utf8(entry->d_name, d->f.cFileName) < 0) return -1; entry->d_ino = 0; *result = entry; if (is_dir != NULL) *is_dir = ((d->f.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0); return 0; } struct git__dirent *git__readdir(git__DIR *d) { struct git__dirent *result; if (git__readdir_ext(d, &d->entry, &result, NULL) < 0) return NULL; return result; } void git__rewinddir(git__DIR *d) { git_win32_path filter_w; if (!d) return; if (d->h != INVALID_HANDLE_VALUE) { FindClose(d->h); d->h = INVALID_HANDLE_VALUE; d->first = 0; } if (!git_win32__findfirstfile_filter(filter_w, d->dir)) return; d->h = FindFirstFileW(filter_w, &d->f); if (d->h == INVALID_HANDLE_VALUE) git_error_set(GIT_ERROR_OS, "could not open directory '%s'", d->dir); else d->first = 1; } int git__closedir(git__DIR *d) { if (!d) return 0; if (d->h != INVALID_HANDLE_VALUE) { FindClose(d->h); d->h = INVALID_HANDLE_VALUE; } git__free(d); return 0; }