fedir
1ddbef6a65
The main.c was completely replaced by one of the libfuse examples: [passthrough_fh.c](https://github.com/libfuse/libfuse/blob/master/example/passthrough_fh.c) . This choice is made based on that there is little point in spending time on reinventing the wheel by reimplementing passthrough all over again. Also, the [passthrough_hp.cc](https://github.com/libfuse/libfuse/blob/master/example/passthrough_hp.cc) wasn't used because it uses a vastly different and much more comlex API, even though the authors claim it to be faster.
76 lines
1.9 KiB
C
76 lines
1.9 KiB
C
#define _GNU_SOURCE
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#include "sourcefs.h"
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#include <dirent.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <unistd.h>
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static struct source_files_handle {
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int root_fd;
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} handle;
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const char *source_fname_translate(const char *filename) {
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if (strcmp("/", filename) == 0) {
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return ".";
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} else {
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return filename + 1;
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}
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}
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int source_init(const char *root_path) {
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int root_fd = open(root_path, O_PATH);
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if (root_fd == -1) {
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return -1;
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}
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handle.root_fd = root_fd;
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return 0;
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}
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int source_mkdir(const char *filename, mode_t mode) {
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const char *relative_filename = source_fname_translate(filename);
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return mkdirat(handle.root_fd, relative_filename, mode);
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}
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int source_unlink(const char *filename) {
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const char *relative_filename = source_fname_translate(filename);
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return unlinkat(handle.root_fd, relative_filename, 0);
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}
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int source_stat(const char *restrict filename, struct stat *restrict statbuf) {
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const char *relative_filename = source_fname_translate(filename);
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return fstatat(handle.root_fd, relative_filename, statbuf, 0);
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}
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int source_rmdir(const char *filename) {
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const char *relative_filename = source_fname_translate(filename);
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return unlinkat(handle.root_fd, relative_filename, AT_REMOVEDIR);
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}
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int source_symlink(const char *target, const char *linkpath) {
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const char *relative_linkpath = source_fname_translate(linkpath);
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return symlinkat(target, handle.root_fd, relative_linkpath);
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}
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DIR *source_opendir(const char *filename) {
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const char *relative_filename = source_fname_translate(filename);
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int fd = openat(handle.root_fd, relative_filename, NULL);
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if (fd < 0) {
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perror("Openat failed");
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return NULL;
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}
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DIR *dir_pointer = fdopendir(fd);
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return dir_pointer;
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}
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int source_rename(const char *oldpath, const char *newpath) {
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printf("{\"%s\", \"%s\"}\n", oldpath, newpath);
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return -1;
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}
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