Initial commit

posix/Dir.c

@@ -0,0 +1,135 @@
+#include "../CgeFs.h"
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dirent.h>
+#include <errno.h>
+#include <limits.h>
+
+typedef struct CgeFsDir {
+    DIR *dir;
+    char path[PATH_MAX];
+    size_t size;
+} CgeFsDir;
+
+static int mapErrno(int value) {
+    switch (value) {
+    case ENOENT:
+        return CGE_FS_ENOENT;
+
+    case EACCES:
+        return CGE_FS_EACCES;
+
+    case ENOTDIR:
+        return CGE_FS_ENOTDIR;
+
+    default:
+        return CGE_FS_EUNKNOWN;
+    }
+}
+
+CgeFsDir *CgeFsOpen(const char *path, int *result) {
+    CgeFsDir *d;
+    DIR *dir;
+    size_t size;
+
+    dir = opendir(path);
+    if (!dir) {
+        if (result)
+            *result = mapErrno(errno);
+        return NULL;
+    }
+
+    d = malloc(sizeof(*d));
+    if (!d) {
+        closedir(dir);
+        if (result)
+            *result = CGE_FS_EUNKNOWN;
+        return NULL;
+    }
+
+    d->dir = dir;
+    size = strlen(path);
+    if (size < PATH_MAX) {
+        memcpy(d->path, path, size);
+        if (size > 0 && d->path[size - 1] != '/') {
+            d->path[size] = '/';
+            d->path[size + 1] = 0;
+            d->size = size + 1;
+        } else {
+            memcpy(d->path, path, size);
+            d->path[size] = 0;
+            d->size = size;
+        }
+    } else {
+        d->path[0] = 0;
+        d->size = 0;
+    }
+
+    return d;
+}
+
+int CgeFsNext(CgeFsDir *d, CgeFsInfo *info, int *result) {
+    struct dirent *ent;
+    struct stat st;
+    char path[PATH_MAX];
+
+    while ((ent = readdir(d->dir)) != NULL) {
+        if (!strcmp(ent->d_name, "."))
+            continue;
+        if (!strcmp(ent->d_name, ".."))
+            continue;
+
+        if (d->size > 0 && d->size < PATH_MAX - 2) {
+            strncpy(path, d->path, d->size);
+            path[d->size] = '\0';
+            strncat(path, ent->d_name, PATH_MAX - strlen(path) - 1);
+        } else {
+            strncpy(path, ent->d_name, PATH_MAX - 1);
+            path[PATH_MAX - 1] = '\0';
+        }
+
+        if (stat(path, &st) != 0)
+            continue;
+
+        strncpy(info->name, ent->d_name, CGE_FS_NAME_MAX - 1);
+        info->name[CGE_FS_NAME_MAX - 1] = '\0';
+        info->type = S_ISDIR(st.st_mode) ? CGE_FS_DIR : CGE_FS_FILE;
+        info->size = (uint64_t)st.st_size;
+        info->mtime = (uint64_t)st.st_mtime;
+
+        if (result)
+            *result = CGE_FS_EOK;
+        return 1;
+    }
+
+    return 0;
+}
+
+void CgeFsClose(CgeFsDir *d) {
+    if (!d)
+        return;
+
+    closedir(d->dir);
+    free(d);
+}
+
+int CgeFsCreateDir(const char *path, int *result) {
+    if (mkdir(path, 0777) != 0) {
+        if (result)
+            *result = mapErrno(errno);
+        return 0;
+    }
+    return 1;
+}
+
+int CgeFsRemoveDir(const char *path, int *result) {
+    if (rmdir(path) != 0) {
+        if (result)
+            *result = mapErrno(errno);
+        return 0;
+    }
+    return 1;
+}