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#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;
}
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