/* test readdir/unlink pattern that OS/2 uses tridge@samba.org July 2005 */ #include <stdio.h> #include <stdlib.h> #include <sys/stat.h> #include <unistd.h> #include <sys/types.h> #include <dirent.h> #include <errno.h> #include <string.h> #include <fcntl.h> #define NUM_FILES 700 #define READDIR_SIZE 100 #define DELETE_SIZE 4 #define TESTDIR "test.dir" static int test_readdir_os2_delete_ret; #define FAILED(d) (printf("failure: readdir [\nFailed for %s - %d = %s\n]\n", d, errno, strerror(errno)), test_readdir_os2_delete_ret = 1, 1) #ifndef MIN #define MIN(a,b) ((a)<(b)?(a):(b)) #endif static void cleanup(void) { /* I'm a lazy bastard */ system("rm -rf " TESTDIR); mkdir(TESTDIR, 0700) == 0 || FAILED("mkdir"); } static void create_files(void) { int i; for (i=0;i<NUM_FILES;i++) { char fname[40]; int fd; sprintf(fname, TESTDIR "/test%u.txt", i); fd = open(fname, O_CREAT|O_RDWR, 0600); if (fd < 0) { FAILED("open"); } if (close(fd) != 0) { FAILED("close"); } } } static int os2_delete(DIR *d) { off_t offsets[READDIR_SIZE]; int i, j; struct dirent *de; char names[READDIR_SIZE][30]; /* scan, remembering offsets */ for (i=0, de=readdir(d); de && i < READDIR_SIZE; de=readdir(d), i++) { offsets[i] = telldir(d); strcpy(names[i], de->d_name); } if (i == 0) { return 0; } /* delete the first few */ for (j=0; j<MIN(i, DELETE_SIZE); j++) { char fname[40]; sprintf(fname, TESTDIR "/%s", names[j]); unlink(fname) == 0 || FAILED("unlink"); } /* seek to just after the deletion */ seekdir(d, offsets[j-1]); /* return number deleted */ return j; } int test_readdir_os2_delete(void) { int total_deleted = 0; DIR *d; struct dirent *de; test_readdir_os2_delete_ret = 0; cleanup(); create_files(); d = opendir(TESTDIR "/test0.txt"); if (d != NULL) FAILED("opendir() on file succeed"); if (errno != ENOTDIR) FAILED("opendir() on file didn't give ENOTDIR"); d = opendir(TESTDIR); /* skip past . and .. */ de = readdir(d); strcmp(de->d_name, ".") == 0 || FAILED("match ."); de = readdir(d); strcmp(de->d_name, "..") == 0 || FAILED("match .."); while (1) { int n = os2_delete(d); if (n == 0) break; total_deleted += n; } closedir(d); fprintf(stderr, "Deleted %d files of %d\n", total_deleted, NUM_FILES); rmdir(TESTDIR) == 0 || FAILED("rmdir"); system("rm -rf " TESTDIR); return test_readdir_os2_delete_ret; }