[deb_libnfs.git] / examples / nfsclient-sync.c

/* 
   Copyright (C) by Ronnie Sahlberg <ronniesahlberg@gmail.com> 2010
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program; if not, see <http://www.gnu.org/licenses/>.
*/

/* Example program using the highlevel sync interface
 */

#define SERVER "10.1.1.27"
#define EXPORT "/VIRTUAL"
#define NFSFILE "/BOOKS/Classics/Dracula.djvu.truncated"
#define NFSFILER "/BOOKS/Classics/Dracula.djvu.renamed"
#define NFSFILEW "/BOOKS/Classics/foo"
#define NFSDIR "/BOOKS/Classics/"

#define _GNU_SOURCE

#if defined(WIN32)
#include <winsock2.h>
typedef int off_t;
#pragma comment(lib, "ws2_32.lib")
WSADATA wsaData;
#else
#include <sys/statvfs.h>
#include <unistd.h>
#endif

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "libnfs.h"
#include <rpc/rpc.h>            /* for authunix_create() */
#include "libnfs-raw.h"
#include "libnfs-raw-mount.h"

struct client {
       char *server;
       char *export;
       uint32_t mount_port;
       int is_finished;
};


char buf[3*1024*1024+337];

int main(int argc _U_, char *argv[] _U_)
{
	struct nfs_context *nfs;
	int i, ret;
	off_t offset;
	struct client client;
	struct stat st;
	struct nfsfh  *nfsfh;
	struct nfsdir *nfsdir;
	struct nfsdirent *nfsdirent;
	struct statvfs svfs;
	exports export, tmp;

#if defined(WIN32)
	if (WSAStartup(MAKEWORD(2,2), &wsaData) != 0) {
		printf("Failed to start Winsock2\n");
		exit(10);
	}
#endif

	client.server = SERVER;
	client.export = EXPORT;
	client.is_finished = 0;
	export = mount_getexports(SERVER);
	if (export != NULL) {
		printf("exports on server %s\n", SERVER);
		tmp = export;
		while (tmp != NULL) {
		      printf("Export: %s\n", tmp->ex_dir);
		      tmp = tmp->ex_next;
		}

		mount_free_export_list(export);
	} else {
		printf("no exports on server %s\n", SERVER);
	}	

	nfs = nfs_init_context();
	if (nfs == NULL) {
		printf("failed to init context\n");
		exit(10);
	}

	ret = nfs_mount(nfs, client.server, client.export);
	if (ret != 0) {
 		printf("Failed to mount nfs share : %s\n", nfs_get_error(nfs));
		exit(10);
	}
	printf("mounted share successfully %s\n", nfs_get_error(nfs));


	ret = nfs_stat(nfs, NFSFILE, &st);
	if (ret != 0) {
		printf("Failed to stat(%s) %s\n", NFSFILE, nfs_get_error(nfs));
		exit(10);
	}
	printf("Mode %04o\n", st.st_mode);
	printf("Size %d\n", (int)st.st_size);
	printf("Inode %04o\n", (int)st.st_ino);

	ret = nfs_open(nfs, NFSFILE, O_RDONLY, &nfsfh);
	if (ret != 0) {
		printf("Failed to open(%s) %s\n", NFSFILE, nfs_get_error(nfs));
		exit(10);
	}

#if 0
	ret = nfs_read(nfs, nfsfh, 16, buf);
	if (ret < 0) {
		printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
		exit(10);
	}
	printf("read %d bytes\n", ret);
	for (i=0;i<16;i++) {
		printf("%02x ", buf[i]&0xff);
	}
	printf("\n");
#endif
	ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
	if (ret < 0) {
		printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
		exit(10);
	}
	printf("read %d bytes\n", ret);
	for (i=0;i<16;i++) {
		printf("%02x ", buf[i]&0xff);
	}
	printf("\n");
	ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
	if (ret < 0) {
		printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
		exit(10);
	}
	printf("read %d bytes\n", ret);
	ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
	if (ret < 0) {
		printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
		exit(10);
	}
	printf("read %d bytes\n", ret);
	ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
	if (ret < 0) {
		printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
		exit(10);
	}
	printf("read %d bytes\n", ret);
	ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
	if (ret < 0) {
		printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
		exit(10);
	}
	printf("read %d bytes\n", ret);
	ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
	if (ret < 0) {
		printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
		exit(10);
	}
	printf("read %d bytes\n", ret);

	ret = (int)nfs_lseek(nfs, nfsfh, 0, SEEK_CUR, &offset);
	if (ret < 0) {
		printf("Failed to lseek(%s) %s\n", NFSFILE, nfs_get_error(nfs));
		exit(10);
	}
	printf("File position is %d\n", (int)offset);

	printf("seek to end of file\n");
	ret = (int)nfs_lseek(nfs, nfsfh, 0, SEEK_END, &offset);
	if (ret < 0) {
		printf("Failed to lseek(%s) %s\n", NFSFILE, nfs_get_error(nfs));
		exit(10);
	}
	printf("File position is %d\n", (int)offset);

	ret = nfs_fstat(nfs, nfsfh, &st);
	if (ret != 0) {
		printf("Failed to stat(%s) %s\n", NFSFILE, nfs_get_error(nfs));
		exit(10);
	}
	printf("Mode %04o\n", st.st_mode);
	printf("Size %d\n", (int)st.st_size);
	printf("Inode %04o\n", (int)st.st_ino);


	ret = nfs_close(nfs, nfsfh);
	if (ret < 0) {
		printf("Failed to close(%s): %s\n", NFSFILE, nfs_get_error(nfs));
		exit(10);
	}

	ret = nfs_opendir(nfs, NFSDIR, &nfsdir);
	if (ret != 0) {
		printf("Failed to open(%s) %s\n", NFSFILE, nfs_get_error(nfs));
		exit(10);
	}
	while((nfsdirent = nfs_readdir(nfs, nfsdir)) != NULL) {
	  char filename[1024];
		printf("Inode:%d Name:%s ", (int)nfsdirent->inode, nfsdirent->name);
		sprintf(&filename, "%s/%s", NFSDIR, nfsdirent->name);
		ret = nfs_open(nfs, filename, O_RDONLY, &nfsfh);
		if (ret != 0) {
			printf("Failed to open(%s) %s\n", filename, nfs_get_error(nfs));
			exit(10);
		}
		ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
		if (ret < 0) {
			printf("Error reading file\n");
			exit(10);
		}
		printf("Read %d bytes\n", ret);
		ret = nfs_close(nfs, nfsfh);
		if (ret < 0) {
			printf("Failed to close(%s): %s\n", NFSFILE, nfs_get_error(nfs));
			exit(10);
		}
	}
	nfs_closedir(nfs, nfsdir);


	ret = nfs_open(nfs, NFSFILEW, O_WRONLY, &nfsfh);
	if (ret != 0) {
		printf("Failed to open(%s) %s\n", NFSFILEW, nfs_get_error(nfs));
		exit(10);
	}
	ret = nfs_pwrite(nfs, nfsfh, 0, 16, buf);
	if (ret < 0) {
		printf("Failed to pwrite(%s) %s\n", NFSFILEW, nfs_get_error(nfs));
		exit(10);
	}
	ret = nfs_fsync(nfs, nfsfh);
	if (ret < 0) {
		printf("Failed to fsync(%s) %s\n", NFSFILEW, nfs_get_error(nfs));
		exit(10);
	}
	ret = nfs_close(nfs, nfsfh);
	if (ret < 0) {
		printf("Failed to close(%s) %s\n", NFSFILEW, nfs_get_error(nfs));
		exit(10);
	}


	ret = nfs_statvfs(nfs, NFSDIR, &svfs);
	if (ret < 0) {
		printf("Failed to statvfs(%s) %s\n", NFSDIR, nfs_get_error(nfs));
		exit(10);
	}
	printf("files %d/%d/%d\n", (int)svfs.f_files, (int)svfs.f_ffree, (int)svfs.f_favail);


	ret = nfs_access(nfs, NFSFILE, R_OK);
	if (ret != 0) {
		printf("Failed to access(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	}

	/* become root */
	nfs_set_auth(nfs, authunix_create("Ronnies-Laptop", 0, 0, 0, NULL));

	ret = nfs_link(nfs, NFSFILE, NFSFILER);
	if (ret != 0) {
		printf("Failed to link(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	}


	nfs_destroy_context(nfs);
	printf("nfsclient finished\n");
	return 0;
}
Commit	Line	Data
84004dbf RS	1	/*
	2	Copyright (C) by Ronnie Sahlberg <ronniesahlberg@gmail.com> 2010
	3
	4	This program is free software; you can redistribute it and/or modify
	5	it under the terms of the GNU General Public License as published by
	6	the Free Software Foundation; either version 3 of the License, or
	7	(at your option) any later version.
	8
	9	This program is distributed in the hope that it will be useful,
	10	but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	GNU General Public License for more details.
	13
	14	You should have received a copy of the GNU General Public License
	15	along with this program; if not, see <http://www.gnu.org/licenses/>.
	16	*/
	17
	18	/* Example program using the highlevel sync interface
	19	*/
	20
	21	#define SERVER "10.1.1.27"
	22	#define EXPORT "/VIRTUAL"
e4a5ba42	23	#define NFSFILE "/BOOKS/Classics/Dracula.djvu.truncated"
84004dbf RS	24	#define NFSFILER "/BOOKS/Classics/Dracula.djvu.renamed"
	25	#define NFSFILEW "/BOOKS/Classics/foo"
	26	#define NFSDIR "/BOOKS/Classics/"
	27
57187d21	28	#define _GNU_SOURCE
eecdc4f3 RS	29
	30	#if defined(WIN32)
	31	#include <winsock2.h>
	32	typedef int off_t;
	33	#pragma comment(lib, "ws2_32.lib")
	34	WSADATA wsaData;
	35	#else
	36	#include <sys/statvfs.h>
	37	#include <unistd.h>
	38	#endif
	39
84004dbf RS	40	#include <stdio.h>
	41	#include <stdlib.h>
	42	#include <stdint.h>
	43	#include <sys/types.h>
	44	#include <sys/stat.h>
84004dbf RS	45	#include <fcntl.h>
	46	#include "libnfs.h"
	47	#include <rpc/rpc.h> /* for authunix_create() */
df5af25f RS	48	#include "libnfs-raw.h"
df5af25f RS	49	#include "libnfs-raw-mount.h"
84004dbf RS	50
	51	struct client {
	52	char *server;
	53	char *export;
	54	uint32_t mount_port;
	55	int is_finished;
	56	};
	57
	58
57187d21	59	char buf[310241024+337];
cdb19ec1	60
7d0397cf	61	int main(int argc _U_, char *argv[] _U_)
84004dbf RS	62	{
	63	struct nfs_context *nfs;
	64	int i, ret;
eecdc4f3	65	off_t offset;
84004dbf RS	66	struct client client;
	67	struct stat st;
	68	struct nfsfh *nfsfh;
	69	struct nfsdir *nfsdir;
	70	struct nfsdirent *nfsdirent;
84004dbf	71	struct statvfs svfs;
df5af25f	72	exports export, tmp;
df5af25f	73
eecdc4f3 RS	74	#if defined(WIN32)
	75	if (WSAStartup(MAKEWORD(2,2), &wsaData) != 0) {
	76	printf("Failed to start Winsock2\n");
	77	exit(10);
	78	}
	79	#endif
	80
	81	client.server = SERVER;
	82	client.export = EXPORT;
	83	client.is_finished = 0;
e210bd2a	84	export = mount_getexports(SERVER);
739df145 RS	85	if (export != NULL) {
	86	printf("exports on server %s\n", SERVER);
	87	tmp = export;
	88	while (tmp != NULL) {
	89	printf("Export: %s\n", tmp->ex_dir);
	90	tmp = tmp->ex_next;
	91	}
df5af25f	92
739df145 RS	93	mount_free_export_list(export);
	94	} else {
	95	printf("no exports on server %s\n", SERVER);
	96	}
84004dbf RS	97
	98	nfs = nfs_init_context();
	99	if (nfs == NULL) {
	100	printf("failed to init context\n");
	101	exit(10);
	102	}
	103
e2ba5764	104	ret = nfs_mount(nfs, client.server, client.export);
84004dbf RS	105	if (ret != 0) {
	106	printf("Failed to mount nfs share : %s\n", nfs_get_error(nfs));
	107	exit(10);
	108	}
1e8994af	109	printf("mounted share successfully %s\n", nfs_get_error(nfs));
84004dbf RS	110
84004dbf RS	111
e2ba5764	112	ret = nfs_stat(nfs, NFSFILE, &st);
84004dbf RS	113	if (ret != 0) {
	114	printf("Failed to stat(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	115	exit(10);
	116	}
	117	printf("Mode %04o\n", st.st_mode);
	118	printf("Size %d\n", (int)st.st_size);
	119	printf("Inode %04o\n", (int)st.st_ino);
	120
e2ba5764	121	ret = nfs_open(nfs, NFSFILE, O_RDONLY, &nfsfh);
84004dbf RS	122	if (ret != 0) {
	123	printf("Failed to open(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	124	exit(10);
	125	}
	126
cdb19ec1	127	#if 0
e2ba5764	128	ret = nfs_read(nfs, nfsfh, 16, buf);
84004dbf RS	129	if (ret < 0) {
	130	printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	131	exit(10);
	132	}
	133	printf("read %d bytes\n", ret);
	134	for (i=0;i<16;i++) {
	135	printf("%02x ", buf[i]&0xff);
	136	}
	137	printf("\n");
cdb19ec1 RS	138	#endif
cdb19ec1 RS	139	ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
84004dbf RS	140	if (ret < 0) {
	141	printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	142	exit(10);
	143	}
	144	printf("read %d bytes\n", ret);
	145	for (i=0;i<16;i++) {
	146	printf("%02x ", buf[i]&0xff);
	147	}
	148	printf("\n");
57187d21 RS	149	ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
	150	if (ret < 0) {
	151	printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	152	exit(10);
	153	}
	154	printf("read %d bytes\n", ret);
	155	ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
	156	if (ret < 0) {
	157	printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	158	exit(10);
	159	}
	160	printf("read %d bytes\n", ret);
	161	ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
	162	if (ret < 0) {
	163	printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	164	exit(10);
	165	}
	166	printf("read %d bytes\n", ret);
	167	ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
	168	if (ret < 0) {
	169	printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	170	exit(10);
	171	}
	172	printf("read %d bytes\n", ret);
	173	ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
	174	if (ret < 0) {
	175	printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	176	exit(10);
	177	}
	178	printf("read %d bytes\n", ret);
84004dbf	179
e2ba5764	180	ret = (int)nfs_lseek(nfs, nfsfh, 0, SEEK_CUR, &offset);
84004dbf RS	181	if (ret < 0) {
	182	printf("Failed to lseek(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	183	exit(10);
	184	}
	185	printf("File position is %d\n", (int)offset);
	186
	187	printf("seek to end of file\n");
e2ba5764	188	ret = (int)nfs_lseek(nfs, nfsfh, 0, SEEK_END, &offset);
84004dbf RS	189	if (ret < 0) {
	190	printf("Failed to lseek(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	191	exit(10);
	192	}
	193	printf("File position is %d\n", (int)offset);
	194
e2ba5764	195	ret = nfs_fstat(nfs, nfsfh, &st);
84004dbf RS	196	if (ret != 0) {
	197	printf("Failed to stat(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	198	exit(10);
	199	}
	200	printf("Mode %04o\n", st.st_mode);
	201	printf("Size %d\n", (int)st.st_size);
	202	printf("Inode %04o\n", (int)st.st_ino);
	203
	204
e2ba5764	205	ret = nfs_close(nfs, nfsfh);
84004dbf	206	if (ret < 0) {
7d0397cf	207	printf("Failed to close(%s): %s\n", NFSFILE, nfs_get_error(nfs));
84004dbf RS	208	exit(10);
	209	}
	210
e2ba5764	211	ret = nfs_opendir(nfs, NFSDIR, &nfsdir);
84004dbf RS	212	if (ret != 0) {
	213	printf("Failed to open(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	214	exit(10);
	215	}
	216	while((nfsdirent = nfs_readdir(nfs, nfsdir)) != NULL) {
eecdc4f3	217	char filename[1024];
57187d21	218	printf("Inode:%d Name:%s ", (int)nfsdirent->inode, nfsdirent->name);
eecdc4f3	219	sprintf(&filename, "%s/%s", NFSDIR, nfsdirent->name);
57187d21	220	ret = nfs_open(nfs, filename, O_RDONLY, &nfsfh);
57187d21 RS	221	if (ret != 0) {
	222	printf("Failed to open(%s) %s\n", filename, nfs_get_error(nfs));
	223	exit(10);
	224	}
	225	ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
	226	if (ret < 0) {
	227	printf("Error reading file\n");
	228	exit(10);
	229	}
	230	printf("Read %d bytes\n", ret);
	231	ret = nfs_close(nfs, nfsfh);
	232	if (ret < 0) {
	233	printf("Failed to close(%s): %s\n", NFSFILE, nfs_get_error(nfs));
	234	exit(10);
	235	}
84004dbf RS	236	}
	237	nfs_closedir(nfs, nfsdir);
	238
	239
e2ba5764	240	ret = nfs_open(nfs, NFSFILEW, O_WRONLY, &nfsfh);
84004dbf RS	241	if (ret != 0) {
	242	printf("Failed to open(%s) %s\n", NFSFILEW, nfs_get_error(nfs));
	243	exit(10);
	244	}
e2ba5764	245	ret = nfs_pwrite(nfs, nfsfh, 0, 16, buf);
84004dbf RS	246	if (ret < 0) {
	247	printf("Failed to pwrite(%s) %s\n", NFSFILEW, nfs_get_error(nfs));
	248	exit(10);
	249	}
e2ba5764	250	ret = nfs_fsync(nfs, nfsfh);
84004dbf RS	251	if (ret < 0) {
	252	printf("Failed to fsync(%s) %s\n", NFSFILEW, nfs_get_error(nfs));
	253	exit(10);
	254	}
e2ba5764	255	ret = nfs_close(nfs, nfsfh);
84004dbf	256	if (ret < 0) {
7d0397cf	257	printf("Failed to close(%s) %s\n", NFSFILEW, nfs_get_error(nfs));
84004dbf RS	258	exit(10);
	259	}
	260
	261
e2ba5764	262	ret = nfs_statvfs(nfs, NFSDIR, &svfs);
84004dbf	263	if (ret < 0) {
7d0397cf	264	printf("Failed to statvfs(%s) %s\n", NFSDIR, nfs_get_error(nfs));
84004dbf RS	265	exit(10);
	266	}
	267	printf("files %d/%d/%d\n", (int)svfs.f_files, (int)svfs.f_ffree, (int)svfs.f_favail);
	268
	269
e2ba5764	270	ret = nfs_access(nfs, NFSFILE, R_OK);
84004dbf RS	271	if (ret != 0) {
	272	printf("Failed to access(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	273	}
	274
	275	/* become root */
	276	nfs_set_auth(nfs, authunix_create("Ronnies-Laptop", 0, 0, 0, NULL));
	277
e2ba5764	278	ret = nfs_link(nfs, NFSFILE, NFSFILER);
84004dbf RS	279	if (ret != 0) {
	280	printf("Failed to link(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	281	}
	282
	283
	284	nfs_destroy_context(nfs);
	285	printf("nfsclient finished\n");
	286	return 0;
	287	}
df5af25f	288