1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
9 /* for O_DIRECTORY and O_DIRECT */
15 #include <sys/types.h>
22 #include <lustre/lustre_user.h>
24 typedef struct flag_mapping {
29 FLAG_MAPPING flag_table[] = {
30 {"O_RDONLY", O_RDONLY},
31 {"O_WRONLY", O_WRONLY},
35 {"O_NOCTTY", O_NOCTTY},
37 {"O_APPEND", O_APPEND},
38 {"O_NONBLOCK", O_NONBLOCK},
39 {"O_NDELAY", O_NDELAY},
42 {"O_DIRECT", O_DIRECT},
44 {"O_LARGEFILE", O_LARGEFILE},
45 {"O_DIRECTORY", O_DIRECTORY},
46 {"O_NOFOLLOW", O_NOFOLLOW},
47 {"O_LOV_DELAY_CREATE", O_LOV_DELAY_CREATE},
51 void Usage_and_abort(void)
53 fprintf(stderr, "Usage: openfile -f flags [ -m mode ] filename \n");
54 fprintf(stderr, "e.g. openfile -f O_RDWR:O_CREAT -m 0755 /etc/passwd\n");
58 int main(int argc, char** argv)
69 char* cloned_flags = NULL;
74 while ((c = getopt (argc, argv, "f:m:")) != -1) {
79 cloned_flags = (char *)malloc(strlen(optarg)+1);
80 if (cloned_flags == NULL) {
81 fprintf(stderr, "Insufficient memory.\n");
85 strncpy(cloned_flags, optarg, strlen(optarg)+1);
86 flags = atoi(cloned_flags);
90 printf("flags = %d\n",flags);
96 for (tmp = strtok(cloned_flags, ":|"); tmp;
97 tmp = strtok(NULL, ":|")) {
100 printf("flags = %s\n",tmp);
103 for (i = 0; flag_table[i].flag != -1; i++) {
104 if (!strcmp(tmp, flag_table[i].string)){
105 flags |= flag_table[i].flag;
110 if (flag_table[i].flag == -1) {
111 fprintf(stderr, "No such flag: %s\n",
118 printf("flags = %x\n", flags);
124 printf("mode = %s\n", optarg);
126 mode = strtol(optarg, NULL, 8);
129 printf("mode = %o\n", mode);
133 fprintf(stderr, "Bad parameters.\n");
138 if (optind == argc) {
139 fprintf(stderr, "Bad parameters.\n");
143 fname = argv[optind];
146 if (!flag_set || !file_set) {
147 fprintf(stderr, "Missing flag or file-name\n");
153 fd = open(fname, flags, mode);
155 fd = open(fname, flags);
160 printf("Succeed in opening file \"%s\"(flags=%s",
161 fname, cloned_flags);
164 printf(", mode=%o", mode);
170 fprintf(stderr, "Error in opening file \"%s\"(flags=%s",
171 fname, cloned_flags);
173 fprintf(stderr, ", mode=%o", mode);
174 fprintf(stderr, ") %d: %s\n", save_errno, strerror(save_errno));