Linux copendir函数错误处理方法

#<span>include <stdio.h></span>
#<span>include <stdlib.h></span>
#<span>include <dirent.h></span>
#<span>include <sys/stat.h></span>
#<span>include <unistd.h></span>
#<span>include <errno.h></span>

int cop_dir(<span>const char *src, const char *dest)</span> {
    DIR *dir;
    <span>struct dirent *entry;</span>
    <span>struct stat statbuf;</span>
    int err;

    if (!(dir = opendir(src))) {
        perror("opendir");
        return -1;
    }

    if (mkdir(dest, statbuf.st_mode) == -1 && errno != EEXIST) {
        perror("mkdir");
        closedir(dir);
        return -1;
    }

    while ((entry = readdir(dir)) != NULL) {
        if (strcmp(entry->d_name, ".") == 0 || strcmp(entry->d_name, "..") == 0)
            continue;

        if (stat(src "/" entry->d_name, &statbuf) == -1) {
            perror("stat");
            closedir(dir);
            return -1;
        }

        char src_path[PATH_MAX], dest_path[PATH_MAX];
        snprintf(src_path, sizeof(src_path), "%s/%s", src, entry->d_name);
        snprintf(dest_path, sizeof(dest_path), "%s/%s", dest, entry->d_name);

        if (S_ISDIR(statbuf.st_mode)) {
            if (cop_dir(src_path, dest_path) == -1)
                return -1;
        } else {
            if ((err = copy_file(src_path, dest_path)) == -1) {
                perror("copy_file");
                closedir(dir);
                return -1;
            }
        }
    }

    closedir(dir);
    return 0;
}

int main(<span>int argc, char *argv[])</span> {
    if (argc != 3) {
        fprintf(stderr, "Usage: %s <source_directory> <destination_directory>\n", argv[0]);
        return 1;
    }

    if (cop_dir(argv[1], argv[2]) == -1) {
        fprintf(stderr, "Error copying directory\n");
        return 1;
    }

    printf("Directory copied successfully\n");
    return 0;
}