89 lines
2.7 KiB
C++
89 lines
2.7 KiB
C++
#include "hdir.h"
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#include "hplatform.h"
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#ifdef OS_WIN
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//FILETIME starts from 1601-01-01 UTC, epoch from 1970-01-01 UTC
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//FILETIME unit (100ns)
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#define FILETIME_EPOCH_DIFF 11644473600 // s
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time_t FileTime2Epoch(FILETIME filetime) {
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uint64_t ll = (((uint64_t)filetime.dwHighDateTime) << 32) | filetime.dwLowDateTime;
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ll /= 1e7; // s
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return ll - FILETIME_EPOCH_DIFF;
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}
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#endif
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static bool less(const hdir_t& lhs, const hdir_t& rhs) {
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return stricmp(lhs.name, rhs.name) < 0;
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}
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int listdir(const char* dir, std::list<hdir_t>& dirs) {
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int dirlen = strlen(dir);
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if (dirlen > 256) {
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return -1;
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}
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char path[512];
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strcpy(path, dir);
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if (dir[dirlen-1] != '/') {
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strcat(path, "/");
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++dirlen;
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}
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dirs.clear();
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#ifdef OS_UNIX
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// opendir -> readdir -> closedir
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DIR* dp = opendir(dir);
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if (dp == NULL) return -1;
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struct dirent* result = NULL;
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struct stat st;
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hdir_t tmp;
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while ((result = readdir(dp))) {
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memset(&tmp, 0, sizeof(hdir_t));
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strncpy(tmp.name, result->d_name, sizeof(tmp.name));
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strncpy(path+dirlen, result->d_name, sizeof(path)-dirlen);
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if (lstat(path, &st) == 0) {
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if (S_ISREG(st.st_mode)) tmp.type = 'f';
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else if (S_ISDIR(st.st_mode)) tmp.type = 'd';
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else if (S_ISLNK(st.st_mode)) tmp.type = 'l';
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else if (S_ISBLK(st.st_mode)) tmp.type = 'b';
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else if (S_ISCHR(st.st_mode)) tmp.type = 'c';
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else if (S_ISSOCK(st.st_mode)) tmp.type = 's';
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else if (S_ISFIFO(st.st_mode)) tmp.type = 'p';
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else tmp.type = '-';
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tmp.mode = st.st_mode & 0777;
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tmp.size = st.st_size;
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tmp.atime = st.st_atime;
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tmp.mtime = st.st_mtime;
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tmp.ctime = st.st_ctime;
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}
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dirs.push_back(tmp);
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}
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closedir(dp);
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#elif defined(OS_WIN)
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// FindFirstFile -> FindNextFile -> FindClose
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strcat(path, "*");
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WIN32_FIND_DATAA data;
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HANDLE h = FindFirstFileA(path, &data);
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if (h == NULL) {
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return -1;
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}
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hdir_t tmp;
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do {
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memset(&tmp, 0, sizeof(hdir_t));
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strncpy(tmp.name, data.cFileName, sizeof(tmp.name));
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tmp.type = 'f';
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if (data.dwFileAttributes & _A_SUBDIR) {
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tmp.type = 'd';
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}
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tmp.mode = 0777;
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tmp.size = (((uint64_t)data.nFileSizeHigh) << 32) | data.nFileSizeLow;
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tmp.atime = FileTime2Epoch(data.ftLastAccessTime);
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tmp.mtime = FileTime2Epoch(data.ftLastWriteTime);
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tmp.ctime = FileTime2Epoch(data.ftCreationTime);
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dirs.push_back(tmp);
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} while (FindNextFileA(h, &data));
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FindClose(h);
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#endif
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dirs.sort(less);
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return dirs.size();
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}
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