/* SPDX-License-Identifier: LGPL-2.1-or-later */

#pragma once

#include <dirent.h>

#include <stdbool.h>

#include <stdio.h>

#include <sys/socket.h>

#include "macro.h"

#include "stdio-util.h"

/* maximum length of fdname */

#define FDNAME_MAX 255

/* Make sure we can distinguish fd 0 and NULL */

#define FD_TO_PTR(fd) INT_TO_PTR((fd)+1)

#define PTR_TO_FD(p) (PTR_TO_INT(p)-1)

int close_nointr(int fd);

int safe_close(int fd);

void safe_close_pair(int p[static 2]);

static inline int safe_close_above_stdio(int fd) {

        if (fd < 3) /* Don't close stdin/stdout/stderr, but still invalidate the fd by returning -1 */

                return -1;

        return safe_close(fd);

}

Unexecuted instantiation: fuzz-link-parser.c:safe_close_above_stdio

Unexecuted instantiation: link-config.c:safe_close_above_stdio

void close_many(const int fds[], size_t n_fd);

int fclose_nointr(FILE *f);

FILE* safe_fclose(FILE *f);

DIR* safe_closedir(DIR *f);

static inline void closep(int *fd) {

        safe_close(*fd);

}

Unexecuted instantiation: fuzz-link-parser.c:closep

Unexecuted instantiation: link-config.c:closep

static inline void close_pairp(int (*p)[2]) {

        safe_close_pair(*p);

}

Unexecuted instantiation: fuzz-link-parser.c:close_pairp

Unexecuted instantiation: link-config.c:close_pairp

static inline void fclosep(FILE **f) {

        safe_fclose(*f);

}

fuzz-link-parser.c:fclosep

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static inline void fclosep(FILE **f) {

45

348k

        safe_fclose(*f);

46

348k

}

Unexecuted instantiation: link-config.c:fclosep

DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(FILE*, pclose, NULL);

DEFINE_TRIVIAL_CLEANUP_FUNC_FULL(DIR*, closedir, NULL);

#define _cleanup_close_ _cleanup_(closep)

#define _cleanup_fclose_ _cleanup_(fclosep)

#define _cleanup_pclose_ _cleanup_(pclosep)

#define _cleanup_closedir_ _cleanup_(closedirp)

#define _cleanup_close_pair_ _cleanup_(close_pairp)

int fd_nonblock(int fd, bool nonblock);

int fd_cloexec(int fd, bool cloexec);

int get_max_fd(void);

int close_all_fds(const int except[], size_t n_except);

int close_all_fds_without_malloc(const int except[], size_t n_except);

int same_fd(int a, int b);

void cmsg_close_all(struct msghdr *mh);

bool fdname_is_valid(const char *s);

int fd_get_path(int fd, char **ret);

int move_fd(int from, int to, int cloexec);

enum {

        ACQUIRE_NO_DEV_NULL = 1 << 0,

        ACQUIRE_NO_MEMFD    = 1 << 1,

        ACQUIRE_NO_PIPE     = 1 << 2,

        ACQUIRE_NO_TMPFILE  = 1 << 3,

        ACQUIRE_NO_REGULAR  = 1 << 4,

};

int fd_move_above_stdio(int fd);

int rearrange_stdio(int original_input_fd, int original_output_fd, int original_error_fd);

static inline int make_null_stdio(void) {

        return rearrange_stdio(-1, -1, -1);

}

Unexecuted instantiation: fuzz-link-parser.c:make_null_stdio

Unexecuted instantiation: link-config.c:make_null_stdio

/* Like TAKE_PTR() but for file descriptors, resetting them to -1 */

#define TAKE_FD(fd)                             \

        ({                                      \

                int *_fd_ = &(fd);              \

                int _ret_ = *_fd_;              \

                *_fd_ = -1;                     \

                _ret_;                          \

        })

/* Like free_and_replace(), but for file descriptors */

#define close_and_replace(a, b)                 \

        ({                                      \

                int *_fdp_ = &(a);              \

                safe_close(*_fdp_);             \

                *_fdp_ = TAKE_FD(b);            \

                0;                              \

        })

int fd_reopen(int fd, int flags);

int read_nr_open(void);

int btrfs_defrag_fd(int fd);

int fd_get_diskseq(int fd, uint64_t *ret);

/* The maximum length a buffer for a /proc/self/fd/<fd> path needs */

#define PROC_FD_PATH_MAX \

        (STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int))

static inline char *format_proc_fd_path(char buf[static PROC_FD_PATH_MAX], int fd) {

        assert(buf);

        assert(fd >= 0);

        assert_se(snprintf_ok(buf, PROC_FD_PATH_MAX, "/proc/self/fd/%i", fd));

        return buf;

}

Unexecuted instantiation: fuzz-link-parser.c:format_proc_fd_path

Unexecuted instantiation: link-config.c:format_proc_fd_path

#define FORMAT_PROC_FD_PATH(fd) \

        format_proc_fd_path((char[PROC_FD_PATH_MAX]) {}, (fd))