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75 lines
1.6 KiB
C
75 lines
1.6 KiB
C
/*
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* Test by Devin Reade
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*
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* $Id: dirent.c,v 1.1 1997/02/28 05:12:52 gdr Exp $
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*
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*/
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#include <sys/types.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <dirent.h>
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#define FAIL(arg) { fprintf(stderr,"%s (errno==%d)\n", arg, errno); exit(1); }
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int main (int argc, char **argv) {
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DIR *dirp;
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struct dirent *ent;
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char *path;
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int count;
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long offset;
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if (argc != 2) {
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printf("usage: %s dir_name\n", argv[0]);
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exit(1);
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}
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path = argv[1];
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printf("opening %s\n", path);
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/* test opendir */
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if ((dirp = opendir(path)) == NULL) {
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FAIL("opendir failed");
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}
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/* test dirfd */
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printf("dirfd returns %d\n", dirfd(dirp));
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/* test readdir and telldir */
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count = 0;
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printf("current offset is %ld\n", telldir(dirp));
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while ((ent = readdir(dirp)) != NULL) {
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printf("\t%lu %hu %hu %hu %s\n", ent->d_fileno,
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ent->d_reclen, (unsigned short) ent->d_type,
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(unsigned short) ent->d_namlen, ent->d_name);
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if (count == 1) {
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offset = telldir(dirp);
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printf("count %d has offset %ld\n", count, offset);
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}
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count++;
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}
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/* test seekdir */
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printf("seeking to saved offset\n");
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seekdir(dirp, offset);
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if ((ent = readdir(dirp)) != NULL) {
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printf("\t%lu %hu %hu %hu %s\n", ent->d_fileno,
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ent->d_reclen, (unsigned short) ent->d_type,
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(unsigned short) ent->d_namlen, ent->d_name);
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}
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/* test rewinddir */
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printf("rewinding directory:\n");
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rewinddir(dirp);
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while ((ent = readdir(dirp)) != NULL) {
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printf("\t%lu %hu %hu %hu %s\n", ent->d_fileno,
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ent->d_reclen, (unsigned short) ent->d_type,
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(unsigned short) ent->d_namlen, ent->d_name);
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}
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/* test closedir */
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printf("closedir returns %d\n", closedir(dirp));
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return 0;
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}
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