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|
/*
Copyright (C) 2015-2020, Dirk Krause
SPDX-License-Identifier: BSD-3-Clause
*/
/*
WARNING: This file was generated by the dkct program (see
http://dktools.sourceforge.net/ for details).
Changes you make here will be lost if dkct is run again!
You should modify the original source and run dkct on it.
Original source: dk4sock13.ctr
*/
/** @file dk4sock13.c The dk4sock13 module.
*/
#line 9 "dk4sock13.ctr"
#include "dk4conf.h"
#include "dk4sock.h"
#include <stdio.h>
#if DK4_HAVE_ERRNO_H
#ifndef ERRNO_H_INCLUDED
#include <errno.h>
#define ERRNO_H_INCLUDED 1
#endif
#endif
#if DK4_HAVE_UNISTD_H
#ifndef UNISTD_H_INCLUDED
#include <unistd.h>
#define UNISTD_H_INCLUDED 1
#endif
#endif
#if DK4_HAVE_IO_H
#ifndef IO_H_INCLUDED
#include <io.h>
#define IO_H_INCLUDED 1
#endif
#endif
#if DK4_HAVE_STRINGS_H
#ifndef STRINGS_H_INCLUDED
#include <strings.h>
#define STRINGS_H_INCLUDED 1
#endif
#endif
#include "dk4mem.h"
#include "dk4stat.h"
#include "dk4stat8.h"
#include "dk4delfile08.h"
#if DK4_HAVE_ASSERT_H
#ifndef ASSERT_H_INCLUDED
#include <assert.h>
#define ASSERT_H_INCLUDED 1
#endif
#endif
#line 58 "dk4sock13.ctr"
int
dk4socket_listen(
dk4_socket_t sock,
int bl,
dk4_er_t *erp
)
{
int back = DK4_SOCKET_RESULT_FAILED;
#if DK4_USE_ASSERT
assert(INVALID_SOCKET != sock);
#endif
if ((INVALID_SOCKET != sock) && (0 < bl)) {
dk4socket_error_reset();
if (0 == listen(sock, bl)) {
back = DK4_SOCKET_RESULT_SUCCESS;
} else {
dk4socket_error_report(erp, DK4_E_SOCKET_LISTEN);
}
} else {
dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
}
return back;
}
dk4_socket_t
dk4socket_accept(
dk4_socket_t sock,
struct sockaddr *pAddr,
size_t *pSzAddr,
dk4_er_t *erp
)
{
dk4_socket_t back = INVALID_SOCKET;
#if DK4_HAVE_SOCKLEN_T
socklen_t sz;
#else
int sz;
#endif
#line 102 "dk4sock13.ctr"
#if DK4_USE_ASSERT
assert(INVALID_SOCKET != sock);
assert(NULL != pAddr);
assert(NULL != pSzAddr);
assert(0 < *pSzAddr);
#endif
if (INVALID_SOCKET != sock) {
if (NULL != pAddr) {
#line 110 "dk4sock13.ctr"
if (NULL != pSzAddr) {
#line 111 "dk4sock13.ctr"
if (0 < *pSzAddr) {
#line 112 "dk4sock13.ctr"
#if DK4_HAVE_SOCKLEN_T
sz = (socklen_t)(*pSzAddr);
#else
sz = (int)(*pSzAddr);
#endif
dk4socket_error_reset();
back = accept(sock, pAddr, &sz);
if (INVALID_SOCKET != back) {
*pSzAddr = (size_t)sz;
} else {
dk4socket_error_report(erp, DK4_E_SOCKET_ACCEPT);
*pSzAddr = 0;
}
} else {
#line 126 "dk4sock13.ctr"
dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
}
} else {
#line 129 "dk4sock13.ctr"
dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
}
} else {
#line 132 "dk4sock13.ctr"
/* ACCEPT */
dk4socket_error_reset();
back = accept(sock, NULL, NULL);
if (INVALID_SOCKET == back) {
dk4socket_error_report(erp, DK4_E_SOCKET_ACCEPT);
}
}
} else {
#line 140 "dk4sock13.ctr"
dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
}
#line 142 "dk4sock13.ctr"
return back;
}
#if DK4_HAVE_STRUCT_SOCKADDR_UN
/** Change mode and optionally owner and group for a socket.
@param sock Socket file descriptor.
@param filename Socket file name.
@param owner New owner.
@param group New group.
@param mode New file mode.
@param cog Flag: Also change owner and group.
@param erp Error report, may be NULL
*/
static
int
dk4socket_i_change_owner_group_mode(
dk4_socket_t sock,
const char *filename,
uid_t owner,
gid_t group,
mode_t mode,
int cog,
dk4_er_t *erp
)
{
int errval;
int back = 1;
#if DK4_USE_ASSERT
assert(INVALID_SOCKET != sock);
assert(NULL != filename);
assert(108 > strlen(filename));
#endif
#line 177 "dk4sock13.ctr"
if (0 != cog) {
errno = 0;
if (0 != chown(filename, owner, group)) {
errval = errno;
if (0 != fchown(sock, owner, group)) {
back = 0;
dk4error_set_idetails(erp, DK4_E_CHOWN_FAILED, errval);
}
}
}
errno = 0;
if (0 != chmod(filename, mode)) {
errval = errno;
if (0 != fchmod(sock, mode)) {
back = 0;
dk4error_set_idetails(erp, DK4_E_CHMOD_FAILED, errval);
}
}
#line 196 "dk4sock13.ctr"
return back;
}
static
dk4_socket_t
dk4socket_i_c8_unix_listener_ogm(
const char *filename,
int backlog,
uid_t owner,
gid_t group,
mode_t mode,
int change,
dk4_er_t *erp
)
{
struct sockaddr_un soun;
dk4_stat_t stb;
size_t slen;
dk4_socket_t back = INVALID_SOCKET;
int md = 0;
int res;
int ogm1;
int ogm2;
#if DK4_USE_ASSERT
assert(NULL != filename);
assert(108 > strlen(filename));
assert(0 < backlog);
#endif
if ((NULL != filename) && (0 < backlog)) {
if (108 > strlen(filename)) {
/* Attempt to remove existing socket.
*/
res = 1;
if (0 != dk4stat_c8(&stb, filename, NULL)) {
res = 0;
if (0 != dk4stat_is_unix_domain_socket(&stb, NULL)) {
if (0 != dk4delete_file_c8(filename, NULL)) {
res = 1;
} else {
/* ERROR: Failed to remove old socket */
dk4error_set_simple_error_code(erp, DK4_E_UNLINK_FAILED);
}
} else {
/* ERROR: Not a socket */
dk4error_set_simple_error_code(erp, DK4_E_NON_SOCKET);
}
}
/* Open and bind new socket.
*/
if (0 != res) {
DK4_MEMRES(&soun, sizeof(soun));
soun.sun_family = AF_UNIX;
strcpy(soun.sun_path, filename);
slen = dk4socket_unix_length(&soun);
back = dk4socket_open(AF_UNIX, SOCK_STREAM, 0, erp);
if (INVALID_SOCKET != back) {
(void)dk4socket_option_set_reuse(back, 1, NULL);
res = dk4socket_bind(
back, (const struct sockaddr *)(&soun), slen, erp
);
if (DK4_SOCKET_RESULT_SUCCESS == res) {
ogm1 = dk4socket_i_change_owner_group_mode(
back, filename, owner, group, mode, change, erp
);
res = dk4socket_listen(back, backlog, erp);
if (DK4_SOCKET_RESULT_SUCCESS == res) {
ogm2 = dk4socket_i_change_owner_group_mode(
back, filename, owner, group, mode, change, erp
);
if ((0 == ogm1) && (0 == ogm2)) {
(void)dk4socket_close(back, NULL);
back = INVALID_SOCKET;
md = 1;
}
} else {
(void)dk4socket_close(back, NULL);
back = INVALID_SOCKET;
md = 1;
}
} else {
(void)dk4socket_close(back, NULL);
back = INVALID_SOCKET;
}
if ((INVALID_SOCKET == back) && (0 != md)) {
(void)dk4delete_file_c8(filename, NULL);
}
}
} else {
}
} else {
dk4error_set_simple_error_code(erp, DK4_E_SYNTAX);
}
} else {
dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
}
return back;
}
dk4_socket_t
dk4socket_c8_unix_listener(
const char *filename,
int backlog,
dk4_er_t *erp
)
{
#if DK4_USE_ASSERT
assert(NULL != filename);
assert(108 > strlen(filename));
#endif
return (
dk4socket_i_c8_unix_listener_ogm(filename, backlog, 0, 0, 0660, 0, erp)
);
}
dk4_socket_t
dk4socket_c8_unix_listener_owner_group_mode(
const char *filename,
int backlog,
uid_t owner,
gid_t group,
mode_t mode,
dk4_er_t *erp
)
{
#if DK4_USE_ASSERT
assert(NULL != filename);
assert(108 > strlen(filename));
#endif
return (
dk4socket_i_c8_unix_listener_ogm(
filename, backlog, owner, group, mode, 1, erp
)
);
}
#endif
|