-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * 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 version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.gnu.org/licenses/gpl-2.0.html
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*/
-
-#if 0
-#define DEBUG
-#endif
/* for O_DIRECTORY and O_DIRECT */
+#ifndef _GNU_SOURCE
#define _GNU_SOURCE
+#endif
#include <stdio.h>
#include <sys/types.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
-#include <lustre/lustre_user.h>
+#include <linux/lustre/lustre_user.h>
typedef struct flag_mapping {
- const char *string;
- const int flag;
+ const char *string;
+ const int flag;
} FLAG_MAPPING;
FLAG_MAPPING flag_table[] = {
- {"O_RDONLY", O_RDONLY},
- {"O_WRONLY", O_WRONLY},
- {"O_RDWR", O_RDWR},
- {"O_CREAT", O_CREAT},
- {"O_EXCL", O_EXCL},
- {"O_NOCTTY", O_NOCTTY},
- {"O_TRUNC", O_TRUNC},
- {"O_APPEND", O_APPEND},
- {"O_NONBLOCK", O_NONBLOCK},
- {"O_NDELAY", O_NDELAY},
- {"O_SYNC", O_SYNC},
- {"O_DIRECT", O_DIRECT},
- {"O_LARGEFILE", O_LARGEFILE},
- {"O_DIRECTORY", O_DIRECTORY},
- {"O_NOFOLLOW", O_NOFOLLOW},
- {"O_LOV_DELAY_CREATE", O_LOV_DELAY_CREATE},
- {"", -1}
+ {"O_RDONLY", O_RDONLY},
+ {"O_WRONLY", O_WRONLY},
+ {"O_RDWR", O_RDWR},
+ {"O_CREAT", O_CREAT},
+ {"O_EXCL", O_EXCL},
+ {"O_NOCTTY", O_NOCTTY},
+ {"O_TRUNC", O_TRUNC},
+ {"O_APPEND", O_APPEND},
+ {"O_NONBLOCK", O_NONBLOCK},
+ {"O_NDELAY", O_NDELAY},
+ {"O_SYNC", O_SYNC},
+#ifdef O_DIRECT
+ {"O_DIRECT", O_DIRECT},
+#endif
+ {"O_LARGEFILE", O_LARGEFILE},
+ {"O_DIRECTORY", O_DIRECTORY},
+ {"O_NOFOLLOW", O_NOFOLLOW},
+ {"O_LOV_DELAY_CREATE", O_LOV_DELAY_CREATE},
+ {"", -1}
};
void Usage_and_abort(void)
{
- fprintf(stderr, "Usage: openfile -f flags [ -m mode ] filename \n");
- fprintf(stderr, "e.g. openfile -f O_RDWR:O_CREAT -m 0755 /etc/passwd\n");
- exit(-1);
+ fprintf(stderr, "Usage: openfile -f flags [ -m mode ] filename\n");
+ fprintf(stderr,
+ "e.g. openfile -f O_RDWR:O_CREAT -m 0755 /etc/passwd\n");
+ exit(-1);
}
-int main(int argc, char** argv)
+int main(int argc, char **argv)
{
- int fd;
- int flags=0;
- mode_t mode=0644;
- char* fname=NULL;
- int mode_set=0;
- int flag_set=0;
- int file_set=0;
- char c;
- char* cloned_flags;
-
- if (argc == 1)
- Usage_and_abort();
-
- while ((c = getopt (argc, argv, "f:m:")) != -1) {
- switch (c) {
- case 'f': {
- char *tmp;
-
- cloned_flags = (char *)malloc(strlen(optarg)+1);
- if (cloned_flags == NULL) {
- fprintf(stderr, "Insufficient memory.\n");
- exit(-1);
- }
-
- strncpy(cloned_flags, optarg, strlen(optarg)+1);
- for (tmp = strtok(optarg, ":|"); tmp;
- tmp = strtok(NULL, ":|")) {
- int i = 0;
+ int fd;
+ int flags = 0;
+ mode_t mode = 0644;
+ char *fname = NULL;
+ int mode_set = 0;
+ int flag_set = 0;
+ int c;
+ int save_errno = 0;
+ int print_usage = 0;
+ char *cloned_flags = NULL;
+
+ if (argc == 1)
+ Usage_and_abort();
+
+ while ((c = getopt(argc, argv, "f:m:")) != -1) {
+ switch (c) {
+ case 'f': {
+ char *tmp;
+
+ cloned_flags = strdup(optarg);
+ if (!cloned_flags) {
+ fprintf(stderr, "Insufficient memory.\n");
+ save_errno = -1;
+ goto out;
+ }
+
+ flags = atoi(cloned_flags);
+ if (flags > 0) {
+ flag_set = 1;
+#ifdef DEBUG
+ printf("flags = %d\n", flags);
+#endif
+ break;
+ }
+
+ flags = 0;
+
+ for (tmp = strtok(cloned_flags, ":|"); tmp;
+ tmp = strtok(NULL, ":|")) {
+ int i = 0;
#ifdef DEBUG
- printf("flags = %s\n",tmp);
+ printf("flags = %s\n", tmp);
#endif
- flag_set = 1;
- for (i = 0; flag_table[i].flag != -1; i++) {
- if (!strcmp(tmp, flag_table[i].string)){
- flags |= flag_table[i].flag;
- break;
- }
- }
-
- if (flag_table[i].flag == -1) {
- fprintf(stderr, "No such flag: %s\n",
- tmp);
- exit(-1);
- }
- }
+ flag_set = 1;
+ for (i = 0; flag_table[i].flag != -1; i++) {
+ if (!strcmp(tmp,
+ flag_table[i].string)) {
+ flags |= flag_table[i].flag;
+ break;
+ }
+ }
+
+ if (flag_table[i].flag == -1) {
+ fprintf(stderr, "No such flag: %s\n",
+ tmp);
+ save_errno = -1;
+ goto out;
+ }
+ }
#ifdef DEBUG
- printf("flags = %x\n", flags);
+ printf("flags = %x\n", flags);
#endif
- break;
- }
- case 'm':
+ break;
+ }
+ case 'm':
#ifdef DEBUG
- printf("mode = %s\n", optarg);
+ printf("mode = %s\n", optarg);
#endif
- mode = strtol(optarg, NULL, 8);
- mode_set = 1;
+ mode = strtol(optarg, NULL, 8);
+ mode_set = 1;
#ifdef DEBUG
- printf("mode = %o\n", mode);
+ printf("mode = %o\n", mode);
#endif
- break;
- default:
- fprintf(stderr, "Bad parameters.\n");
- Usage_and_abort();
- }
- }
-
- if (optind == argc) {
- fprintf(stderr, "Bad parameters.\n");
- Usage_and_abort();
- }
-
- fname = argv[optind];
- file_set = 1;
-
- if (!flag_set || !file_set) {
- fprintf(stderr, "Missing flag or file-name\n");
- exit(-1);
- }
-
-
- if (flags & O_CREAT)
- fd = open(fname, flags, mode);
- else
- fd = open(fname, flags);
-
- if (fd != -1) {
- printf("Succeed in opening file \"%s\"(flags=%s",
- fname, cloned_flags);
-
- if (mode_set)
- printf(", mode=%o", mode);
- printf(")\n");
- close(fd);
- return 0;
- }
-
- fprintf(stderr, "Error in opening file \"%s\"(flags=%s",
- fname, cloned_flags);
- if (mode_set)
- fprintf(stderr, ", mode=%o", mode);
- fprintf(stderr, ") %d: %s\n", errno, strerror(errno));
-
- return errno;
+ break;
+ default:
+ fprintf(stderr, "Bad parameters.\n");
+ print_usage = 1;
+ goto out;
+ }
+ }
+
+ if (optind == argc) {
+ fprintf(stderr, "Bad parameters.\n");
+ print_usage = 1;
+ goto out;
+ }
+
+ fname = argv[optind];
+
+ if (!flag_set) {
+ fprintf(stderr, "Missing flag or file-name\n");
+ save_errno = -1;
+ goto out;
+ }
+
+ if (flags & O_CREAT)
+ fd = open(fname, flags, mode);
+ else
+ fd = open(fname, flags);
+
+ save_errno = errno;
+
+ if (fd != -1) {
+ printf("Succeed in opening file \"%s\"(flags=%s",
+ fname, cloned_flags);
+
+ if (mode_set)
+ printf(", mode=%o", mode);
+ printf(")\n");
+ close(fd);
+ } else {
+ fprintf(stderr, "Error in opening file \"%s\"(flags=%s",
+ fname, cloned_flags);
+ if (mode_set)
+ fprintf(stderr, ", mode=%o", mode);
+ fprintf(stderr, ") %d: %s\n", save_errno, strerror(save_errno));
+ }
+out:
+ if (cloned_flags)
+ free(cloned_flags);
+ if (print_usage)
+ Usage_and_abort();
+
+ return save_errno;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff