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265 lines
6.5 KiB
265 lines
6.5 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* Test the statx() system call. |
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* |
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* Note that the output of this program is intended to look like the output of |
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* /bin/stat where possible. |
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* |
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* Copyright (C) 2015 Red Hat, Inc. All Rights Reserved. |
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* Written by David Howells ([email protected]) |
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*/ |
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#define _GNU_SOURCE |
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#define _ATFILE_SOURCE |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include <ctype.h> |
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#include <errno.h> |
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#include <time.h> |
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#include <sys/syscall.h> |
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#include <sys/types.h> |
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#include <linux/stat.h> |
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#include <linux/fcntl.h> |
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#define statx foo |
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#define statx_timestamp foo_timestamp |
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struct statx; |
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struct statx_timestamp; |
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#include <sys/stat.h> |
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#undef statx |
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#undef statx_timestamp |
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#define AT_STATX_SYNC_TYPE 0x6000 |
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#define AT_STATX_SYNC_AS_STAT 0x0000 |
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#define AT_STATX_FORCE_SYNC 0x2000 |
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#define AT_STATX_DONT_SYNC 0x4000 |
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#ifndef __NR_statx |
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#define __NR_statx -1 |
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#endif |
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static __attribute__((unused)) |
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ssize_t statx(int dfd, const char *filename, unsigned flags, |
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unsigned int mask, struct statx *buffer) |
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{ |
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return syscall(__NR_statx, dfd, filename, flags, mask, buffer); |
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} |
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static void print_time(const char *field, struct statx_timestamp *ts) |
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{ |
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struct tm tm; |
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time_t tim; |
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char buffer[100]; |
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int len; |
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tim = ts->tv_sec; |
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if (!localtime_r(&tim, &tm)) { |
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perror("localtime_r"); |
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exit(1); |
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} |
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len = strftime(buffer, 100, "%F %T", &tm); |
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if (len == 0) { |
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perror("strftime"); |
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exit(1); |
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} |
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printf("%s", field); |
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fwrite(buffer, 1, len, stdout); |
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printf(".%09u", ts->tv_nsec); |
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len = strftime(buffer, 100, "%z", &tm); |
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if (len == 0) { |
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perror("strftime2"); |
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exit(1); |
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} |
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fwrite(buffer, 1, len, stdout); |
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printf("\n"); |
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} |
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static void dump_statx(struct statx *stx) |
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{ |
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char buffer[256], ft = '?'; |
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printf("results=%x\n", stx->stx_mask); |
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printf(" "); |
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if (stx->stx_mask & STATX_SIZE) |
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printf(" Size: %-15llu", (unsigned long long)stx->stx_size); |
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if (stx->stx_mask & STATX_BLOCKS) |
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printf(" Blocks: %-10llu", (unsigned long long)stx->stx_blocks); |
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printf(" IO Block: %-6llu", (unsigned long long)stx->stx_blksize); |
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if (stx->stx_mask & STATX_TYPE) { |
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switch (stx->stx_mode & S_IFMT) { |
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case S_IFIFO: printf(" FIFO\n"); ft = 'p'; break; |
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case S_IFCHR: printf(" character special file\n"); ft = 'c'; break; |
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case S_IFDIR: printf(" directory\n"); ft = 'd'; break; |
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case S_IFBLK: printf(" block special file\n"); ft = 'b'; break; |
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case S_IFREG: printf(" regular file\n"); ft = '-'; break; |
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case S_IFLNK: printf(" symbolic link\n"); ft = 'l'; break; |
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case S_IFSOCK: printf(" socket\n"); ft = 's'; break; |
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default: |
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printf(" unknown type (%o)\n", stx->stx_mode & S_IFMT); |
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break; |
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} |
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} else { |
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printf(" no type\n"); |
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} |
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sprintf(buffer, "%02x:%02x", stx->stx_dev_major, stx->stx_dev_minor); |
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printf("Device: %-15s", buffer); |
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if (stx->stx_mask & STATX_INO) |
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printf(" Inode: %-11llu", (unsigned long long) stx->stx_ino); |
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if (stx->stx_mask & STATX_NLINK) |
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printf(" Links: %-5u", stx->stx_nlink); |
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if (stx->stx_mask & STATX_TYPE) { |
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switch (stx->stx_mode & S_IFMT) { |
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case S_IFBLK: |
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case S_IFCHR: |
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printf(" Device type: %u,%u", |
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stx->stx_rdev_major, stx->stx_rdev_minor); |
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break; |
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} |
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} |
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printf("\n"); |
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if (stx->stx_mask & STATX_MODE) |
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printf("Access: (%04o/%c%c%c%c%c%c%c%c%c%c) ", |
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stx->stx_mode & 07777, |
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ft, |
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stx->stx_mode & S_IRUSR ? 'r' : '-', |
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stx->stx_mode & S_IWUSR ? 'w' : '-', |
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stx->stx_mode & S_IXUSR ? 'x' : '-', |
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stx->stx_mode & S_IRGRP ? 'r' : '-', |
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stx->stx_mode & S_IWGRP ? 'w' : '-', |
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stx->stx_mode & S_IXGRP ? 'x' : '-', |
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stx->stx_mode & S_IROTH ? 'r' : '-', |
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stx->stx_mode & S_IWOTH ? 'w' : '-', |
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stx->stx_mode & S_IXOTH ? 'x' : '-'); |
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if (stx->stx_mask & STATX_UID) |
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printf("Uid: %5d ", stx->stx_uid); |
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if (stx->stx_mask & STATX_GID) |
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printf("Gid: %5d\n", stx->stx_gid); |
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if (stx->stx_mask & STATX_ATIME) |
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print_time("Access: ", &stx->stx_atime); |
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if (stx->stx_mask & STATX_MTIME) |
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print_time("Modify: ", &stx->stx_mtime); |
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if (stx->stx_mask & STATX_CTIME) |
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print_time("Change: ", &stx->stx_ctime); |
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if (stx->stx_mask & STATX_BTIME) |
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print_time(" Birth: ", &stx->stx_btime); |
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if (stx->stx_attributes_mask) { |
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unsigned char bits, mbits; |
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int loop, byte; |
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static char attr_representation[64 + 1] = |
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/* STATX_ATTR_ flags: */ |
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"????????" /* 63-56 */ |
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"????????" /* 55-48 */ |
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"????????" /* 47-40 */ |
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"????????" /* 39-32 */ |
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"????????" /* 31-24 0x00000000-ff000000 */ |
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"????????" /* 23-16 0x00000000-00ff0000 */ |
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"???me???" /* 15- 8 0x00000000-0000ff00 */ |
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"?dai?c??" /* 7- 0 0x00000000-000000ff */ |
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; |
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printf("Attributes: %016llx (", |
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(unsigned long long)stx->stx_attributes); |
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for (byte = 64 - 8; byte >= 0; byte -= 8) { |
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bits = stx->stx_attributes >> byte; |
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mbits = stx->stx_attributes_mask >> byte; |
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for (loop = 7; loop >= 0; loop--) { |
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int bit = byte + loop; |
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if (!(mbits & 0x80)) |
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putchar('.'); /* Not supported */ |
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else if (bits & 0x80) |
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putchar(attr_representation[63 - bit]); |
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else |
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putchar('-'); /* Not set */ |
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bits <<= 1; |
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mbits <<= 1; |
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} |
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if (byte) |
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putchar(' '); |
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} |
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printf(")\n"); |
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} |
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} |
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static void dump_hex(unsigned long long *data, int from, int to) |
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{ |
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unsigned offset, print_offset = 1, col = 0; |
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from /= 8; |
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to = (to + 7) / 8; |
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for (offset = from; offset < to; offset++) { |
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if (print_offset) { |
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printf("%04x: ", offset * 8); |
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print_offset = 0; |
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} |
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printf("%016llx", data[offset]); |
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col++; |
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if ((col & 3) == 0) { |
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printf("\n"); |
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print_offset = 1; |
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} else { |
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printf(" "); |
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} |
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} |
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if (!print_offset) |
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printf("\n"); |
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} |
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int main(int argc, char **argv) |
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{ |
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struct statx stx; |
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int ret, raw = 0, atflag = AT_SYMLINK_NOFOLLOW; |
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unsigned int mask = STATX_BASIC_STATS | STATX_BTIME; |
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for (argv++; *argv; argv++) { |
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if (strcmp(*argv, "-F") == 0) { |
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atflag &= ~AT_STATX_SYNC_TYPE; |
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atflag |= AT_STATX_FORCE_SYNC; |
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continue; |
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} |
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if (strcmp(*argv, "-D") == 0) { |
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atflag &= ~AT_STATX_SYNC_TYPE; |
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atflag |= AT_STATX_DONT_SYNC; |
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continue; |
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} |
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if (strcmp(*argv, "-L") == 0) { |
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atflag &= ~AT_SYMLINK_NOFOLLOW; |
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continue; |
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} |
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if (strcmp(*argv, "-O") == 0) { |
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mask &= ~STATX_BASIC_STATS; |
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continue; |
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} |
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if (strcmp(*argv, "-A") == 0) { |
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atflag |= AT_NO_AUTOMOUNT; |
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continue; |
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} |
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if (strcmp(*argv, "-R") == 0) { |
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raw = 1; |
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continue; |
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} |
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memset(&stx, 0xbf, sizeof(stx)); |
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ret = statx(AT_FDCWD, *argv, atflag, mask, &stx); |
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printf("statx(%s) = %d\n", *argv, ret); |
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if (ret < 0) { |
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perror(*argv); |
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exit(1); |
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} |
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if (raw) |
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dump_hex((unsigned long long *)&stx, 0, sizeof(stx)); |
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dump_statx(&stx); |
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} |
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return 0; |
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}
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