/******************************************************************************/ /* */ /* Copyright (c) 2009 FUJITSU LIMITED */ /* */ /* This program is free software; you can redistribute it and/or modify */ /* it under the terms of the GNU General Public License as published by */ /* the Free Software Foundation; either version 2 of the License, or */ /* (at your option) any later version. */ /* */ /* This program is distributed in the hope that it will be useful, */ /* but WITHOUT ANY WARRANTY; without even the implied warranty of */ /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See */ /* the GNU General Public License for more details. */ /* */ /* You should have received a copy of the GNU General Public License */ /* along with this program; if not, write to the Free Software */ /* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* */ /* Author: Li Zefan <lizf@cn.fujitsu.com> */ /* */ /******************************************************************************/ #include <sys/types.h> #include <sys/stat.h> #include <unistd.h> #include <stdio.h> #include <string.h> /* * Usage: file_time <filename> <atime|mtime|ctime> <sec|nsec> */ int main(int argc, char *argv[]) { time_t t; struct stat st; if (argc != 4) { fprintf(stderr, "Wrong argument num!\n"); return 1; } if (stat(argv[1], &st) != 0) { perror("stat failed"); return 1; } if (strcmp(argv[3], "sec") == 0) { if (strcmp(argv[2], "atime") == 0) t = st.st_atime; else if (strcmp(argv[2], "mtime") == 0) t = st.st_mtime; else t = st.st_ctime; } else if (strcmp(argv[3], "nsec") == 0) { if (strcmp(argv[2], "atime") == 0) t = st.st_atim.tv_nsec; else if (strcmp(argv[2], "mtime") == 0) t = st.st_mtim.tv_nsec; else t = st.st_ctim.tv_nsec; } else { fprintf(stderr, "Wrong argument: %s\n", argv[3]); return 1; } printf("%lu\n", t); return 0; }