Initial commit

posix/Stat.c

@@ -0,0 +1,114 @@
+#include "../CgeFs.h"
+#include <errno.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+static int mapErrno(int err) {
+    switch (err) {
+    case ENOENT:
+        return CGE_FS_ENOENT;
+
+    case EEXIST:
+        return CGE_FS_EEXIST;
+
+    case EACCES:
+        return CGE_FS_EACCES;
+
+    case ENOTDIR:
+        return CGE_FS_ENOTDIR;
+
+    case EMFILE:
+        return CGE_FS_EMFILE;
+
+    case ENAMETOOLONG:
+        return CGE_FS_ENAMETOOLONG;
+
+    case EIO:
+        return CGE_FS_EIO;
+
+    default:
+        return CGE_FS_EUNKNOWN;
+    }
+}
+
+int CgeFsStat(const char *path, CgeFsInfo *info, int *result) {
+    struct stat st;
+    const char *p;
+    const char *base;
+
+    if (stat(path, &st) != 0) {
+        if (result)
+            *result = mapErrno(errno);
+        return 0;
+    }
+
+    base = NULL;
+    for (p = path; *p; p++)
+        if (*p == '/') base = p + 1;
+
+    if (!base)
+        base = path;
+
+    strncpy(info->name, base, 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;
+    return 1;
+}
+
+int CgeFsDelete(const char *path, int *result) {
+    if (unlink(path) != 0) {
+        if (result)
+            *result = mapErrno(errno);
+        return 0;
+    }
+    return 1;
+}
+
+int CgeFsRename(const char *from, const char *to, int *result) {
+    if (rename(from, to) != 0) {
+        if (result)
+            *result = mapErrno(errno);
+        return 0;
+    }
+    return 1;
+}
+
+int CgeFsCopy(const char *from, const char *to, int *result) {
+    FILE *fin, *fout;
+    char buf[PATH_MAX];
+    size_t n;
+
+    if (!(fin = fopen(from, "rb"))) {
+        if (result)
+            *result = mapErrno(errno);
+        return 0;
+    }
+
+    if (!(fout = fopen(to, "wb"))) {
+        fclose(fin);
+        if (result)
+            *result = mapErrno(errno);
+        return 0;
+    }
+
+    while ((n = fread(buf, 1, sizeof(buf), fin)) > 0) {
+        if (fwrite(buf, 1, n, fout) != n) {
+            if (result)
+                *result = CGE_FS_EIO;
+            fclose(fin);
+            fclose(fout);
+            return 0;
+        }
+    }
+
+    fclose(fin);
+    fclose(fout);
+    return 1;
+}