183 lines
		
	
	
		
			3.2 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			183 lines
		
	
	
		
			3.2 KiB
		
	
	
	
		
			C
		
	
	
	
| // SPDX-License-Identifier: GPL-2.0-or-later
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| /*
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|  * Copyright (c) International Business Machines  Corp., 2001
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|  *	         written by Wayne Boyer
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|  * Copyright (c) 2013 Markos Chandras
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|  * Copyright (c) 2013 Cyril Hrubis <chrubis@suse.cz>
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|  */
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| 
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| /*\
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|  *
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|  * [Description]
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|  *
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|  * Basic getdents() test that checks if directory listing is correct and
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|  * complete.
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|  *
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|  */
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| 
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| #define _GNU_SOURCE
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| 
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| #include "tst_test.h"
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| #include "getdents.h"
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| 
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| #include <stdlib.h>
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| 
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| static void reset_flags(void);
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| static void check_flags(void);
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| static void set_flag(const char *name);
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| 
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| static int fd;
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| 
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| enum entry_type {
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| 	ENTRY_DIR,
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| 	ENTRY_FILE,
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| 	ENTRY_SYMLINK,
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| };
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| 
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| struct testcase {
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| 	const char *name;
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| 	enum entry_type type;
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| 	int create:1;
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| 	int found:1;
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| };
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| 
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| struct testcase testcases[] = {
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| 	{.name = ".",       .create = 0, .type = ENTRY_DIR},
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| 	{.name = "..",      .create = 0, .type = ENTRY_DIR},
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| 	{.name = "dir",     .create = 1, .type = ENTRY_DIR},
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| 	{.name = "file",    .create = 1, .type = ENTRY_FILE},
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| 	{.name = "symlink", .create = 1, .type = ENTRY_SYMLINK},
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| };
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| 
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| /*
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|  * Big enough for dirp entires + data, the current size returned
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|  * by kernel is 128 bytes.
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|  */
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| #define BUFSIZE 512
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| 
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| static void *dirp;
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| 
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| static void run(void)
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| {
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| 	int rval;
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| 
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| 	fd = SAFE_OPEN(".", O_RDONLY|O_DIRECTORY);
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| 
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| 	rval = tst_getdents(fd, dirp, BUFSIZE);
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| 
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| 	if (rval < 0) {
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| 		if (errno == ENOSYS)
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| 			tst_brk(TCONF, "syscall not implemented");
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| 		else {
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| 			tst_res(TFAIL | TERRNO, "getdents failed unexpectedly");
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| 			return;
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| 		}
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| 	}
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| 
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| 	if (rval == 0) {
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| 		tst_res(TFAIL, "getdents failed - returned end of directory");
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| 		return;
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| 	}
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| 
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| 	reset_flags();
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| 
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| 	void *recp = dirp;
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| 
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| 	do {
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| 		size_t d_reclen = tst_dirp_reclen(recp);
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| 		const char *d_name = tst_dirp_name(recp);
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| 
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| 		set_flag(d_name);
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| 
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| 		tst_res(TINFO, "Found '%s'", d_name);
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| 
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| 		rval -= d_reclen;
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| 		recp += d_reclen;
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| 	} while (rval > 0);
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| 
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| 	check_flags();
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| 
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| 	SAFE_CLOSE(fd);
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| }
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| 
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| static void reset_flags(void)
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| {
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| 	size_t i;
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| 
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| 	for (i = 0; i < ARRAY_SIZE(testcases); i++)
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| 		testcases[i].found = 0;
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| }
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| 
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| static void check_flags(void)
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| {
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| 	size_t i;
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| 	int err = 0;
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| 
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| 	for (i = 0; i < ARRAY_SIZE(testcases); i++) {
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| 		if (!testcases[i].found) {
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| 			tst_res(TINFO, "Entry '%s' not found", testcases[i].name);
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| 			err++;
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| 		}
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| 	}
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| 
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| 	if (err)
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| 		tst_res(TFAIL, "Some entries not found");
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| 	else
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| 		tst_res(TPASS, "All entries found");
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| }
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| 
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| static void set_flag(const char *name)
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| {
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| 	size_t i;
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| 
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| 	for (i = 0; i < ARRAY_SIZE(testcases); i++) {
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| 		if (!strcmp(name, testcases[i].name)) {
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| 
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| 			if (testcases[i].found)
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| 				tst_res(TFAIL, "Duplicate entry %s", name);
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| 
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| 			testcases[i].found = 1;
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| 			return;
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| 		}
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| 	}
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| 
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| 	tst_res(TFAIL, "Unexpected entry '%s' found", name);
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| }
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| 
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| static void setup(void)
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| {
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| 	size_t i;
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| 
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| 	getdents_info();
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| 
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| 	if (!tst_variant) {
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| 		for (i = 0; i < ARRAY_SIZE(testcases); i++) {
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| 			if (!testcases[i].create)
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| 				continue;
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| 
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| 			switch (testcases[i].type) {
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| 			case ENTRY_DIR:
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| 				SAFE_MKDIR(testcases[i].name, 0777);
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| 			break;
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| 			case ENTRY_FILE:
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| 				SAFE_FILE_PRINTF(testcases[i].name, " ");
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| 			break;
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| 			case ENTRY_SYMLINK:
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| 				SAFE_SYMLINK("nonexistent", testcases[i].name);
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| 			break;
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| 			}
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| 		}
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| 	}
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| }
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| 
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| static struct tst_test test = {
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| 	.needs_tmpdir = 1,
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| 	.test_all = run,
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| 	.setup = setup,
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| 	.bufs = (struct tst_buffers []) {
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| 		{&dirp, .size = BUFSIZE},
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| 		{},
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| 	},
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| 	.test_variants = TEST_VARIANTS,
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| };
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