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bdd2d4110f
When not using the readdir_plus mode, the d_type was not returned, and the use_ino flag was not used for returning d_ino. This patch fixes the returned values for d_ino and d_type by readdir(3) The test for the returned value of d_ino has been adjusted to also take the d_type into consideration and to check the returned values in both basic readdir and readdir_plus modes. This is done by executing the passthrough test twice. Co-authored-by: Jean-Pierre André <jpandre@users.sourceforge.net>
58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/*
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* Prints each directory entry, its inode and d_type as returned by 'readdir'.
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* Skips '.' and '..' because readdir is not required to return them and
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* some of our examples don't. However if they are returned, their d_type
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* should be valid.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include <dirent.h>
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#include <errno.h>
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int main(int argc, char* argv[])
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{
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DIR* dirp;
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struct dirent* dent;
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if (argc != 2) {
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fprintf(stderr, "Usage: readdir_inode dir\n");
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return 1;
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}
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dirp = opendir(argv[1]);
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if (dirp == NULL) {
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perror("failed to open directory");
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return 2;
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}
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errno = 0;
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dent = readdir(dirp);
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while (dent != NULL) {
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if (strcmp(dent->d_name, ".") != 0 && strcmp(dent->d_name, "..") != 0) {
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printf("%llu %d %s\n", (unsigned long long)dent->d_ino,
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(int)dent->d_type, dent->d_name);
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if ((long long)dent->d_ino < 0)
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fprintf(stderr,"%s : bad d_ino %llu\n",
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dent->d_name, (unsigned long long)dent->d_ino);
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if ((dent->d_type < 1) || (dent->d_type > 15))
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fprintf(stderr,"%s : bad d_type %d\n",
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dent->d_name, (int)dent->d_type);
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} else {
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if (dent->d_type != DT_DIR)
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fprintf(stderr,"%s : bad d_type %d\n",
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dent->d_name, (int)dent->d_type);
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}
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dent = readdir(dirp);
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}
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if (errno != 0) {
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perror("failed to read directory entry");
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return 3;
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}
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closedir(dirp);
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return 0;
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}
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