mirror of
https://github.com/openharmony/third_party_libfuse.git
synced 2026-07-25 07:16:05 -04:00
Miklos Szeredi
0cb2db32e7
Allow 2.X and 3.X to coexist. Includes are now stored under /usr/include/fuse3 and library is named libfuse3.*. Invoke pkg-config with "fuse3" as the first argument to build with version 3 of the library.
109 lines
1.9 KiB
C
Executable File
109 lines
1.9 KiB
C
Executable File
/*
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FUSE: Filesystem in Userspace
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Copyright (C) 2001-2007 Miklos Szeredi <miklos@szeredi.hu>
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This program can be distributed under the terms of the GNU GPL.
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See the file COPYING.
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*/
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/** @file
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*
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* null.c - FUSE: Filesystem in Userspace
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*
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* \section section_compile compiling this example
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*
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* gcc -Wall null.c `pkg-config fuse3 --cflags --libs` -o null
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*
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* \section section_source the complete source
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* \include null.c
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*/
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#define FUSE_USE_VERSION 30
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#include <config.h>
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#include <fuse.h>
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#include <string.h>
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#include <unistd.h>
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#include <time.h>
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#include <errno.h>
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static int null_getattr(const char *path, struct stat *stbuf)
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{
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if(strcmp(path, "/") != 0)
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return -ENOENT;
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stbuf->st_mode = S_IFREG | 0644;
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stbuf->st_nlink = 1;
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stbuf->st_uid = getuid();
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stbuf->st_gid = getgid();
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stbuf->st_size = (1ULL << 32); /* 4G */
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stbuf->st_blocks = 0;
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stbuf->st_atime = stbuf->st_mtime = stbuf->st_ctime = time(NULL);
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return 0;
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}
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static int null_truncate(const char *path, off_t size)
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{
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(void) size;
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if(strcmp(path, "/") != 0)
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return -ENOENT;
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return 0;
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}
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static int null_open(const char *path, struct fuse_file_info *fi)
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{
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(void) fi;
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if(strcmp(path, "/") != 0)
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return -ENOENT;
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return 0;
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}
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static int null_read(const char *path, char *buf, size_t size,
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off_t offset, struct fuse_file_info *fi)
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{
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(void) buf;
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(void) offset;
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(void) fi;
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if(strcmp(path, "/") != 0)
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return -ENOENT;
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if (offset >= (1ULL << 32))
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return 0;
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return size;
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}
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static int null_write(const char *path, const char *buf, size_t size,
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off_t offset, struct fuse_file_info *fi)
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{
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(void) buf;
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(void) offset;
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(void) fi;
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if(strcmp(path, "/") != 0)
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return -ENOENT;
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return size;
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}
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static struct fuse_operations null_oper = {
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.getattr = null_getattr,
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.truncate = null_truncate,
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.open = null_open,
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.read = null_read,
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.write = null_write,
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};
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int main(int argc, char *argv[])
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{
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return fuse_main(argc, argv, &null_oper, NULL);
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}
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