Change the sync example to perform a 'ls -l' on an NFS URL
parent
b9813d24ca
commit
67336940cd
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@ -15,24 +15,20 @@
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along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#define _FILE_OFFSET_BITS 64
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#define _GNU_SOURCE
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/* Example program using the highlevel sync interface
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*/
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#ifdef WIN32
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#include "win32_compat.h"
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#else
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#include <string.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <sys/statvfs.h>
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#endif
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#define SERVER "10.1.1.27"
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#define EXPORT "/VIRTUAL"
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#define NFSFILE "/BOOKS/Classics/Dracula.djvu.truncated"
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#define NFSFILER "/BOOKS/Classics/Dracula.djvu.renamed"
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#define NFSFILEW "/BOOKS/Classics/foo"
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#define NFSDIR "/BOOKS/Classics/"
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#define _GNU_SOURCE
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#if defined(WIN32)
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#pragma comment(lib, "ws2_32.lib")
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@ -45,11 +41,14 @@ WSADATA wsaData;
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <inttypes.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include "libnfs-zdr.h"
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#include "libnfs.h"
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#include <rpc/rpc.h> /* for authunix_create() */
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#include <popt.h>
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#include "libnfs-raw.h"
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#include "libnfs-raw-mount.h"
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@ -61,27 +60,33 @@ struct client {
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};
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void PrintServerList()
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{
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struct nfs_server_list *srvrs;
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struct nfs_server_list *srv;
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srvrs = nfs_find_local_servers();
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for (srv=srvrs; srv; srv = srv->next)
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{
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printf("Found nfs server: %s\n", srv->addr);
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}
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free_nfs_srvr_list(srvrs);
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}
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char buf[3*1024*1024+337];
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int main(int argc _U_, char *argv[] _U_)
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void print_usage(void)
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{
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struct nfs_context *nfs;
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int i, ret;
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fprintf(stderr, "Usage: nfsclient-sync [-?|--help] [--usage] <url>\n");
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}
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void print_help(void)
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{
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fprintf(stderr, "Usage: nfsclient-sync [OPTION...] <url>\n");
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fprintf(stderr, "\n");
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fprintf(stderr, "Help options:\n");
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fprintf(stderr, " -?, --help Show this help message\n");
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fprintf(stderr, " --usage Display brief usage message\n");
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fprintf(stderr, "\n");
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fprintf(stderr, "NFS URL format : nfs://<server>/<export-path>\n");
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fprintf(stderr, "\n");
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fprintf(stderr, "<host> is either of:\n");
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fprintf(stderr, " \"hostname\" nfs.example\n");
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fprintf(stderr, " \"ipv4-address\" 10.1.1.27\n");
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fprintf(stderr, " \"ipv6-address\" [fce0::1]\n");
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}
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int main(int argc, char *argv[])
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{
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struct nfs_context *nfs = NULL;
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int i, ret, res;
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uint64_t offset;
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struct client client;
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struct stat st;
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@ -90,6 +95,18 @@ int main(int argc _U_, char *argv[] _U_)
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struct nfsdirent *nfsdirent;
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struct statvfs svfs;
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exports export, tmp;
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int show_help = 0, show_usage = 0;
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poptContext pc;
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const char **extra_argv;
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int extra_argc = 0;
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const char *url = NULL;
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char *server = NULL, *path = NULL, *strp;
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struct poptOption popt_options[] = {
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{ "help", '?', POPT_ARG_NONE, &show_help, 0, "Show this help message", NULL },
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{ "usage", 0, POPT_ARG_NONE, &show_usage, 0, "Display brief usage message", NULL },
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POPT_TABLEEND
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};
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#if defined(WIN32)
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if (WSAStartup(MAKEWORD(2,2), &wsaData) != 0) {
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@ -98,212 +115,158 @@ int main(int argc _U_, char *argv[] _U_)
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}
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#endif
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client.server = SERVER;
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client.export = EXPORT;
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pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_POSIXMEHARDER);
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if ((res = poptGetNextOpt(pc)) < -1) {
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fprintf(stderr, "Failed to parse option : %s %s\n",
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poptBadOption(pc, 0), poptStrerror(res));
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exit(10);
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}
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extra_argv = poptGetArgs(pc);
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if (extra_argv) {
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url = *extra_argv;
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extra_argv++;
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while (extra_argv[extra_argc]) {
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extra_argc++;
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}
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}
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poptFreeContext(pc);
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if (show_help != 0) {
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print_help();
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exit(0);
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}
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if (show_usage != 0) {
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print_usage();
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exit(0);
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}
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if (url == NULL) {
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fprintf(stderr, "No URL specified.\n");
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print_usage();
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exit(0);
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}
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if (strncmp(url, "nfs://", 6)) {
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fprintf(stderr, "Invalid URL specified.\n");
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print_usage();
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exit(0);
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}
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server = strdup(url + 6);
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if (server == NULL) {
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fprintf(stderr, "Failed to strdup server string\n");
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exit(10);
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}
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if (server[0] == '/' || server[0] == '\0') {
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fprintf(stderr, "Invalid server string.\n");
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free(server);
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exit(10);
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}
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strp = strchr(server, '/');
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if (strp == NULL) {
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fprintf(stderr, "Invalid URL specified.\n");
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print_usage();
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free(server);
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exit(0);
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}
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path = strdup(strp);
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if (path == NULL) {
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fprintf(stderr, "Failed to strdup server string\n");
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free(server);
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exit(10);
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}
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if (path[0] != '/') {
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fprintf(stderr, "Invalid path.\n");
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free(server);
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free(path);
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exit(10);
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}
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*strp = 0;
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client.server = server;
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client.export = path;
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client.is_finished = 0;
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PrintServerList();
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export = mount_getexports(SERVER);
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if (export != NULL) {
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printf("exports on server %s\n", SERVER);
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tmp = export;
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while (tmp != NULL) {
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printf("Export: %s\n", tmp->ex_dir);
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tmp = tmp->ex_next;
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}
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mount_free_export_list(export);
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} else {
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printf("no exports on server %s\n", SERVER);
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}
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nfs = nfs_init_context();
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if (nfs == NULL) {
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printf("failed to init context\n");
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exit(10);
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goto finished;
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}
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ret = nfs_mount(nfs, client.server, client.export);
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if (ret != 0) {
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printf("Failed to mount nfs share : %s\n", nfs_get_error(nfs));
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exit(10);
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goto finished;
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}
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printf("mounted share successfully %s\n", nfs_get_error(nfs));
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ret = nfs_stat(nfs, NFSFILE, &st);
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ret = nfs_opendir(nfs, "/", &nfsdir);
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if (ret != 0) {
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printf("Failed to stat(%s) %s\n", NFSFILE, nfs_get_error(nfs));
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exit(10);
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}
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printf("Mode %04o\n", st.st_mode);
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printf("Size %d\n", (int)st.st_size);
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printf("Inode %04o\n", (int)st.st_ino);
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ret = nfs_open(nfs, NFSFILE, O_RDONLY, &nfsfh);
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if (ret != 0) {
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printf("Failed to open(%s) %s\n", NFSFILE, nfs_get_error(nfs));
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exit(10);
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}
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#if 0
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ret = nfs_read(nfs, nfsfh, 16, buf);
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if (ret < 0) {
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printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
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exit(10);
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}
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printf("read %d bytes\n", ret);
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for (i=0;i<16;i++) {
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printf("%02x ", buf[i]&0xff);
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}
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printf("\n");
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#endif
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ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
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if (ret < 0) {
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printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
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exit(10);
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}
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printf("read %d bytes\n", ret);
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for (i=0;i<16;i++) {
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printf("%02x ", buf[i]&0xff);
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}
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printf("\n");
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ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
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if (ret < 0) {
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printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
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exit(10);
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}
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printf("read %d bytes\n", ret);
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ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
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if (ret < 0) {
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printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
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exit(10);
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}
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printf("read %d bytes\n", ret);
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ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
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if (ret < 0) {
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printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
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exit(10);
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}
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printf("read %d bytes\n", ret);
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ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
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if (ret < 0) {
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printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
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exit(10);
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}
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printf("read %d bytes\n", ret);
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ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
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if (ret < 0) {
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printf("Failed to pread(%s) %s\n", NFSFILE, nfs_get_error(nfs));
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exit(10);
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}
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printf("read %d bytes\n", ret);
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ret = (int)nfs_lseek(nfs, nfsfh, 0, SEEK_CUR, &offset);
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if (ret < 0) {
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printf("Failed to lseek(%s) %s\n", NFSFILE, nfs_get_error(nfs));
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exit(10);
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}
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printf("File position is %d\n", (int)offset);
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printf("seek to end of file\n");
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ret = (int)nfs_lseek(nfs, nfsfh, 0, SEEK_END, &offset);
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if (ret < 0) {
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printf("Failed to lseek(%s) %s\n", NFSFILE, nfs_get_error(nfs));
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exit(10);
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}
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printf("File position is %d\n", (int)offset);
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ret = nfs_fstat(nfs, nfsfh, &st);
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if (ret != 0) {
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printf("Failed to stat(%s) %s\n", NFSFILE, nfs_get_error(nfs));
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exit(10);
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}
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printf("Mode %04o\n", st.st_mode);
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printf("Size %d\n", (int)st.st_size);
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printf("Inode %04o\n", (int)st.st_ino);
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ret = nfs_close(nfs, nfsfh);
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if (ret < 0) {
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printf("Failed to close(%s): %s\n", NFSFILE, nfs_get_error(nfs));
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exit(10);
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}
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ret = nfs_opendir(nfs, NFSDIR, &nfsdir);
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if (ret != 0) {
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printf("Failed to open(%s) %s\n", NFSFILE, nfs_get_error(nfs));
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printf("Failed to opendir(\"/\")\n", nfs_get_error(nfs));
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exit(10);
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}
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while((nfsdirent = nfs_readdir(nfs, nfsdir)) != NULL) {
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char filename[1024];
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printf("Inode:%d Name:%s ", (int)nfsdirent->inode, nfsdirent->name);
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sprintf(filename, "%s/%s", NFSDIR, nfsdirent->name);
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ret = nfs_open(nfs, filename, O_RDONLY, &nfsfh);
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char path[1024];
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if (!strcmp(nfsdirent->name, ".") || !strcmp(nfsdirent->name, "..")) {
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continue;
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}
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snprintf(path, 1024, "%s/%s", "/", nfsdirent->name);
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ret = nfs_stat(nfs, path, &st);
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if (ret != 0) {
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printf("Failed to open(%s) %s\n", filename, nfs_get_error(nfs));
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exit(10);
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fprintf(stderr, "Failed to stat(%s) %s\n", path, nfs_get_error(nfs));
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continue;
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}
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ret = nfs_read(nfs, nfsfh, sizeof(buf), buf);
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if (ret < 0) {
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printf("Error reading file\n");
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}
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printf("Read %d bytes\n", ret);
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ret = nfs_close(nfs, nfsfh);
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if (ret < 0) {
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printf("Failed to close(%s): %s\n", NFSFILE, nfs_get_error(nfs));
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exit(10);
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switch (st.st_mode & S_IFMT) {
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case S_IFLNK:
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case S_IFREG:
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printf("-");
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break;
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case S_IFDIR:
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printf("d");
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break;
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case S_IFCHR:
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printf("c");
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break;
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case S_IFBLK:
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printf("b");
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break;
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}
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printf("%c%c%c",
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"-r"[!!(st.st_mode & S_IRUSR)],
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"-w"[!!(st.st_mode & S_IWUSR)],
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"-x"[!!(st.st_mode & S_IXUSR)]
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);
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printf("%c%c%c",
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"-r"[!!(st.st_mode & S_IRGRP)],
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"-w"[!!(st.st_mode & S_IWGRP)],
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"-x"[!!(st.st_mode & S_IXGRP)]
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);
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printf("%c%c%c",
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"-r"[!!(st.st_mode & S_IROTH)],
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"-w"[!!(st.st_mode & S_IWOTH)],
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"-x"[!!(st.st_mode & S_IXOTH)]
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);
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printf(" %2d", st.st_nlink);
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printf(" %5d", st.st_uid);
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printf(" %5d", st.st_gid);
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printf(" %12" PRId64, st.st_size);
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printf(" %s\n", nfsdirent->name);
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}
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nfs_closedir(nfs, nfsdir);
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ret = nfs_open(nfs, NFSFILEW, O_WRONLY, &nfsfh);
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if (ret != 0) {
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printf("Failed to open(%s) %s\n", NFSFILEW, nfs_get_error(nfs));
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exit(10);
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}
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ret = nfs_pwrite(nfs, nfsfh, 0, 16, buf);
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if (ret < 0) {
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printf("Failed to pwrite(%s) %s\n", NFSFILEW, nfs_get_error(nfs));
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exit(10);
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}
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ret = nfs_fsync(nfs, nfsfh);
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if (ret < 0) {
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printf("Failed to fsync(%s) %s\n", NFSFILEW, nfs_get_error(nfs));
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exit(10);
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}
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ret = nfs_close(nfs, nfsfh);
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if (ret < 0) {
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printf("Failed to close(%s) %s\n", NFSFILEW, nfs_get_error(nfs));
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exit(10);
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}
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ret = nfs_statvfs(nfs, NFSDIR, &svfs);
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if (ret < 0) {
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printf("Failed to statvfs(%s) %s\n", NFSDIR, nfs_get_error(nfs));
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exit(10);
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}
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printf("files %d/%d/%d\n", (int)svfs.f_files, (int)svfs.f_ffree, (int)svfs.f_favail);
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ret = nfs_access(nfs, NFSFILE, R_OK);
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if (ret != 0) {
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printf("Failed to access(%s) %s\n", NFSFILE, nfs_get_error(nfs));
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}
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/* become root */
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nfs_set_auth(nfs, authunix_create("Ronnies-Laptop", 0, 0, 0, NULL));
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ret = nfs_link(nfs, NFSFILE, NFSFILER);
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if (ret != 0) {
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printf("Failed to link(%s) %s\n", NFSFILE, nfs_get_error(nfs));
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}
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finished:
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free(server);
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free(path);
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if (nfs != NULL) {
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nfs_destroy_context(nfs);
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}
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printf("nfsclient finished\n");
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return 0;
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}
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