Attachment 18474 Details for Bug 54283 – тестовый пример

тестовый пример

test-chown.c (text/plain), 1.85 KB, created by nik on 2025-05-15 21:01:48 MSK

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Creator: nik

Created: 2025-05-15 21:01:48 MSK

Size: 1.85 KB

patch

obsolete

>#define _GNU_SOURCE
>#include <pwd.h>
>#include <grp.h>
>#include <stdio.h>
>#include <stdlib.h>
>#include <unistd.h>
>#include <fcntl.h>      // ÐÐ»Ñ AT_FDCWD
>#include <sys/types.h>
>#include <sys/stat.h>
>#include <string.h>
>#include <errno.h>
>
>int main(int argc, char *argv[]) {
>    uid_t uid;
>    gid_t gid;
>    struct passwd *pwd;
>    char *endptr;
>
>    if (argc != 4 || argv[1][0] == '\0') {
>        fprintf(stderr, "Usage: %s <owner> <file> <mode>\n", argv[0]);
>        exit(EXIT_FAILURE);
>    }
>
>    // ÐÐ¾Ð»ÑÑÐ°ÐµÐ¼ UID (Ð¸ GID) Ð¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°ÑÐµÐ»Ñ
>    uid = strtol(argv[1], &endptr, 10);
>    if (*endptr != '\0') {
>        pwd = getpwnam(argv[1]);
>        if (pwd == NULL) {
>            perror("getpwnam");
>            exit(EXIT_FAILURE);
>        }
>        uid = pwd->pw_uid;
>        gid = pwd->pw_gid;
>    } else {
>        // ÐÑÐ»Ð¸ Ð¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°ÑÐµÐ»Ñ ÑÐºÐ°Ð·Ð°Ð½ ÐºÐ°Ðº UID â Ð¿Ð¾Ð»ÑÑÐ°ÐµÐ¼ GID ÑÐµÑÐµÐ· getpwuid
>        pwd = getpwuid(uid);
>        if (pwd == NULL) {
>            perror("getpwuid");
>            exit(EXIT_FAILURE);
>        }
>        gid = pwd->pw_gid;
>    }
>
>    // ÐÑÐµÐ¾Ð±ÑÐ°Ð·ÑÐµÐ¼ Ð¿ÑÐ°Ð²Ð° Ð´Ð¾ÑÑÑÐ¿Ð° Ð¸Ð· ÑÑÑÐ¾ÐºÐ¸ (Ð½Ð°Ð¿ÑÐ¸Ð¼ÐµÑ, "0755")
>    mode_t mode = strtol(argv[3], &endptr, 8);
>    if (*endptr != '\0') {
>        fprintf(stderr, "Invalid mode: %s\n", argv[3]);
>        exit(EXIT_FAILURE);
>    }
>
>    // ÐÐµÐ½ÑÐµÐ¼ Ð¿ÑÐ°Ð²Ð° Ð´Ð¾ÑÑÑÐ¿Ð°
>    if (fchmodat(AT_FDCWD, argv[2], mode, AT_SYMLINK_NOFOLLOW) != 0) {
>        perror("fchmodat");
>        exit(EXIT_FAILURE);
>    }
>
>    // ÐÐµÐ½ÑÐµÐ¼ Ð²Ð»Ð°Ð´ÐµÐ»ÑÑÐ° Ð¸ Ð³ÑÑÐ¿Ð¿Ñ
>    if (fchownat(AT_FDCWD, argv[2], uid, gid, AT_SYMLINK_NOFOLLOW) != 0) {
>        perror("fchownat");
>        exit(EXIT_FAILURE);
>    }
>
>    printf("Changed ownership and mode successfully.\n");
>    exit(EXIT_SUCCESS);
>}

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Attachments on bug 54283: 18474