[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
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/statvfs.h>
#include <unistd.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;
	struct client client;
	struct stat st;
	struct nfsfh  *nfsfh;
	struct nfsdir *nfsdir;
	struct nfsdirent *nfsdirent;
	client.server = SERVER;
	client.export = EXPORT;
	client.is_finished = 0;
	off_t offset;
	struct statvfs svfs;
	exports export, tmp;

	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 = NULL;
		printf("Inode:%d Name:%s ", (int)nfsdirent->inode, nfsdirent->name);
		asprintf(&filename, "%s/%s", NFSDIR, nfsdirent->name);
		ret = nfs_open(nfs, filename, O_RDONLY, &nfsfh);
		free(filename);
		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
84004dbf RS	29	#include <stdio.h>
	30	#include <stdlib.h>
	31	#include <stdint.h>
	32	#include <sys/types.h>
	33	#include <sys/stat.h>
	34	#include <sys/statvfs.h>
	35	#include <unistd.h>
	36	#include <fcntl.h>
	37	#include "libnfs.h"
	38	#include <rpc/rpc.h> /* for authunix_create() */
df5af25f RS	39	#include "libnfs-raw.h"
df5af25f RS	40	#include "libnfs-raw-mount.h"
84004dbf RS	41
	42	struct client {
	43	char *server;
	44	char *export;
	45	uint32_t mount_port;
	46	int is_finished;
	47	};
	48
	49
57187d21	50	char buf[310241024+337];
cdb19ec1	51
7d0397cf	52	int main(int argc _U_, char *argv[] _U_)
84004dbf RS	53	{
	54	struct nfs_context *nfs;
	55	int i, ret;
	56	struct client client;
	57	struct stat st;
	58	struct nfsfh *nfsfh;
	59	struct nfsdir *nfsdir;
	60	struct nfsdirent *nfsdirent;
	61	client.server = SERVER;
	62	client.export = EXPORT;
	63	client.is_finished = 0;
84004dbf RS	64	off_t offset;
84004dbf RS	65	struct statvfs svfs;
df5af25f	66	exports export, tmp;
df5af25f	67
e210bd2a	68	export = mount_getexports(SERVER);
739df145 RS	69	if (export != NULL) {
	70	printf("exports on server %s\n", SERVER);
	71	tmp = export;
	72	while (tmp != NULL) {
	73	printf("Export: %s\n", tmp->ex_dir);
	74	tmp = tmp->ex_next;
	75	}
df5af25f	76
739df145 RS	77	mount_free_export_list(export);
	78	} else {
	79	printf("no exports on server %s\n", SERVER);
	80	}
84004dbf RS	81
	82	nfs = nfs_init_context();
	83	if (nfs == NULL) {
	84	printf("failed to init context\n");
	85	exit(10);
	86	}
	87
e2ba5764	88	ret = nfs_mount(nfs, client.server, client.export);
84004dbf RS	89	if (ret != 0) {
	90	printf("Failed to mount nfs share : %s\n", nfs_get_error(nfs));
	91	exit(10);
	92	}
1e8994af	93	printf("mounted share successfully %s\n", nfs_get_error(nfs));
84004dbf RS	94
84004dbf RS	95
e2ba5764	96	ret = nfs_stat(nfs, NFSFILE, &st);
84004dbf RS	97	if (ret != 0) {
	98	printf("Failed to stat(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	99	exit(10);
	100	}
	101	printf("Mode %04o\n", st.st_mode);
	102	printf("Size %d\n", (int)st.st_size);
	103	printf("Inode %04o\n", (int)st.st_ino);
	104
e2ba5764	105	ret = nfs_open(nfs, NFSFILE, O_RDONLY, &nfsfh);
84004dbf RS	106	if (ret != 0) {
	107	printf("Failed to open(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	108	exit(10);
	109	}
	110
cdb19ec1	111	#if 0
e2ba5764	112	ret = nfs_read(nfs, nfsfh, 16, buf);
84004dbf RS	113	if (ret < 0) {
	114	printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	115	exit(10);
	116	}
	117	printf("read %d bytes\n", ret);
	118	for (i=0;i<16;i++) {
	119	printf("%02x ", buf[i]&0xff);
	120	}
	121	printf("\n");
cdb19ec1 RS	122	#endif
cdb19ec1 RS	123	ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
84004dbf RS	124	if (ret < 0) {
	125	printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	126	exit(10);
	127	}
	128	printf("read %d bytes\n", ret);
	129	for (i=0;i<16;i++) {
	130	printf("%02x ", buf[i]&0xff);
	131	}
	132	printf("\n");
57187d21 RS	133	ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
	134	if (ret < 0) {
	135	printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	136	exit(10);
	137	}
	138	printf("read %d bytes\n", ret);
	139	ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
	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	ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
	146	if (ret < 0) {
	147	printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	148	exit(10);
	149	}
	150	printf("read %d bytes\n", ret);
	151	ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
	152	if (ret < 0) {
	153	printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	154	exit(10);
	155	}
	156	printf("read %d bytes\n", ret);
	157	ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
	158	if (ret < 0) {
	159	printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	160	exit(10);
	161	}
	162	printf("read %d bytes\n", ret);
84004dbf	163
e2ba5764	164	ret = (int)nfs_lseek(nfs, nfsfh, 0, SEEK_CUR, &offset);
84004dbf RS	165	if (ret < 0) {
	166	printf("Failed to lseek(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	167	exit(10);
	168	}
	169	printf("File position is %d\n", (int)offset);
	170
	171	printf("seek to end of file\n");
e2ba5764	172	ret = (int)nfs_lseek(nfs, nfsfh, 0, SEEK_END, &offset);
84004dbf RS	173	if (ret < 0) {
	174	printf("Failed to lseek(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	175	exit(10);
	176	}
	177	printf("File position is %d\n", (int)offset);
	178
e2ba5764	179	ret = nfs_fstat(nfs, nfsfh, &st);
84004dbf RS	180	if (ret != 0) {
	181	printf("Failed to stat(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	182	exit(10);
	183	}
	184	printf("Mode %04o\n", st.st_mode);
	185	printf("Size %d\n", (int)st.st_size);
	186	printf("Inode %04o\n", (int)st.st_ino);
	187
	188
e2ba5764	189	ret = nfs_close(nfs, nfsfh);
84004dbf	190	if (ret < 0) {
7d0397cf	191	printf("Failed to close(%s): %s\n", NFSFILE, nfs_get_error(nfs));
84004dbf RS	192	exit(10);
	193	}
	194
e2ba5764	195	ret = nfs_opendir(nfs, NFSDIR, &nfsdir);
84004dbf RS	196	if (ret != 0) {
	197	printf("Failed to open(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	198	exit(10);
	199	}
	200	while((nfsdirent = nfs_readdir(nfs, nfsdir)) != NULL) {
57187d21 RS	201	char *filename = NULL;
	202	printf("Inode:%d Name:%s ", (int)nfsdirent->inode, nfsdirent->name);
	203	asprintf(&filename, "%s/%s", NFSDIR, nfsdirent->name);
	204	ret = nfs_open(nfs, filename, O_RDONLY, &nfsfh);
	205	free(filename);
	206	if (ret != 0) {
	207	printf("Failed to open(%s) %s\n", filename, nfs_get_error(nfs));
	208	exit(10);
	209	}
	210	ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
	211	if (ret < 0) {
	212	printf("Error reading file\n");
	213	exit(10);
	214	}
	215	printf("Read %d bytes\n", ret);
	216	ret = nfs_close(nfs, nfsfh);
	217	if (ret < 0) {
	218	printf("Failed to close(%s): %s\n", NFSFILE, nfs_get_error(nfs));
	219	exit(10);
	220	}
84004dbf RS	221	}
	222	nfs_closedir(nfs, nfsdir);
	223
	224
e2ba5764	225	ret = nfs_open(nfs, NFSFILEW, O_WRONLY, &nfsfh);
84004dbf RS	226	if (ret != 0) {
	227	printf("Failed to open(%s) %s\n", NFSFILEW, nfs_get_error(nfs));
	228	exit(10);
	229	}
e2ba5764	230	ret = nfs_pwrite(nfs, nfsfh, 0, 16, buf);
84004dbf RS	231	if (ret < 0) {
	232	printf("Failed to pwrite(%s) %s\n", NFSFILEW, nfs_get_error(nfs));
	233	exit(10);
	234	}
e2ba5764	235	ret = nfs_fsync(nfs, nfsfh);
84004dbf RS	236	if (ret < 0) {
	237	printf("Failed to fsync(%s) %s\n", NFSFILEW, nfs_get_error(nfs));
	238	exit(10);
	239	}
e2ba5764	240	ret = nfs_close(nfs, nfsfh);
84004dbf	241	if (ret < 0) {
7d0397cf	242	printf("Failed to close(%s) %s\n", NFSFILEW, nfs_get_error(nfs));
84004dbf RS	243	exit(10);
	244	}
	245
	246
e2ba5764	247	ret = nfs_statvfs(nfs, NFSDIR, &svfs);
84004dbf	248	if (ret < 0) {
7d0397cf	249	printf("Failed to statvfs(%s) %s\n", NFSDIR, nfs_get_error(nfs));
84004dbf RS	250	exit(10);
	251	}
	252	printf("files %d/%d/%d\n", (int)svfs.f_files, (int)svfs.f_ffree, (int)svfs.f_favail);
	253
	254
e2ba5764	255	ret = nfs_access(nfs, NFSFILE, R_OK);
84004dbf RS	256	if (ret != 0) {
	257	printf("Failed to access(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	258	}
	259
	260	/* become root */
	261	nfs_set_auth(nfs, authunix_create("Ronnies-Laptop", 0, 0, 0, NULL));
	262
e2ba5764	263	ret = nfs_link(nfs, NFSFILE, NFSFILER);
84004dbf RS	264	if (ret != 0) {
	265	printf("Failed to link(%s) %s\n", NFSFILE, nfs_get_error(nfs));
	266	}
	267
	268
	269	nfs_destroy_context(nfs);
	270	printf("nfsclient finished\n");
	271	return 0;
	272	}
df5af25f	273