diff options
Diffstat (limited to 'stat.c')
| -rw-r--r-- | stat.c | 117 |
1 files changed, 117 insertions, 0 deletions
@@ -0,0 +1,117 @@ +#define _XOPEN_SOURCE 700 +#include <errno.h> +#include <grp.h> +#include <pwd.h> +#include <stdio.h> +#include <string.h> +#include <sys/stat.h> +#include <time.h> +#include <unistd.h> + +void print_time(const char *label, struct timespec ts) +{ + char dtg[BUFSIZ]; + char zone[BUFSIZ]; + time_t t = ts.tv_sec; + struct tm *tm = localtime(&t); + strftime(dtg, sizeof(dtg), "%F %T", tm); + strftime(zone, sizeof(zone), "%z", tm); + printf("%s: %s.%09lu %s\n", label, dtg, ts.tv_nsec, zone); +} + +int print_stat(const char *path) +{ + struct stat st; + if (stat(path, &st) != 0) { + fprintf(stderr, "stat: %s: %s\n", path, strerror(errno)); + return 1; + } + + struct passwd *user = getpwuid(st.st_uid); + struct group *group = getgrgid(st.st_gid); + + printf(" File: %s\n", path); + printf(" Size: %-10zu", (size_t)st.st_size); + printf("\tBlocks: %-11zu", (size_t)st.st_blocks); + printf("IO Block: %-8zu", (size_t)st.st_blksize); + /* TODO: file type */ + printf("\n"); + + printf("Device: %zxh/%zud", (size_t)st.st_dev, (size_t)st.st_dev); + printf("\tInode: %-12zu", (size_t)st.st_ino); + printf("Links: %zu", (size_t)st.st_nlink); + /* TODO: device number (major,minor) */ + printf("\n"); + + printf("Access: (%04o/", 07777 & (unsigned int)st.st_mode); + if (S_ISDIR(st.st_mode)) { + putchar('d'); + } else if (S_ISFIFO(st.st_mode)) { + putchar('p'); + } else if (S_ISLNK(st.st_mode)) { + putchar('l'); + } else if (S_ISCHR(st.st_mode)) { + putchar('c'); + } else if (S_ISBLK(st.st_mode)) { + putchar('b'); + } else { + putchar('-'); + } + + putchar(st.st_mode & S_IRUSR ? 'r' : '-'); + putchar(st.st_mode & S_IWUSR ? 'w' : '-'); + if (st.st_mode & S_ISUID) { + putchar(st.st_mode & S_IXUSR ? 's' : 'S'); + } else { + putchar(st.st_mode & S_IXUSR ? 'x' : '-'); + } + + putchar(st.st_mode & S_IRGRP ? 'r' : '-'); + putchar(st.st_mode & S_IWGRP ? 'w' : '-'); + if (st.st_mode & S_ISGID) { + putchar(st.st_mode & S_IXGRP ? 's' : 'S'); + } else { + putchar(st.st_mode & S_IXGRP ? 'x' : '-'); + } + + putchar(st.st_mode & S_IROTH ? 'r' : '-'); + putchar(st.st_mode & S_IWOTH ? 'w' : '-'); + if (st.st_mode & S_ISVTX) { + putchar(st.st_mode & S_IXOTH ? 't' : 'T'); + } else { + putchar(st.st_mode & S_IXOTH ? 'x' : '-'); + } + + printf(") Uid: (%5zu/%8s)", (size_t)st.st_uid, user->pw_name); + printf(" Gid: (%5zu/%8s)", (size_t)st.st_gid, group->gr_name); + printf("\n"); + + print_time("Access", st.st_atim); + print_time("Modify", st.st_mtim); + print_time("Change", st.st_ctim); + printf(" Birth: -\n"); + + return 0; +} + +int main(int argc, char *argv[]) +{ + int c; + while ((c = getopt(argc, argv, "")) != -1) { + switch (c) { + default: + return 1; + } + } + + if (optind >= argc) { + fprintf(stderr, "stat: missing operand\n"); + return 1; + } + + int ret = 0; + while (optind < argc) { + ret |= print_stat(argv[optind++]); + } + return ret; +} |