/* WARNING: This file was generated by dkct. 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 */ /* Copyright (C) 2015-2017, Dirk Krause Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above opyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of the author nor the names of contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /** @file dk4sock13.c The dk4sock13 module. */ #line 9 "dk4sock13.ctr" #include "dk4sock.h" #include #if DK4_HAVE_ERRNO_H #ifndef ERRNO_H_INCLUDED #include #define ERRNO_H_INCLUDED 1 #endif #endif #if DK4_HAVE_UNISTD_H #ifndef UNISTD_H_INCLUDED #include #define UNISTD_H_INCLUDED 1 #endif #endif #if DK4_HAVE_IO_H #ifndef IO_H_INCLUDED #include #define IO_H_INCLUDED 1 #endif #endif #if DK4_HAVE_STRINGS_H #ifndef STRINGS_H_INCLUDED #include #define STRINGS_H_INCLUDED 1 #endif #endif #include "dk4mem.h" #include "dk4stat.h" #include "dk4stat8.h" #include "dk4delfile08.h" #line 49 "dk4sock13.ctr" int dk4socket_listen( dk4_socket_t sock, int bl, dk4_er_t *erp ) { int back = DK4_SOCKET_RESULT_FAILED; 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 90 "dk4sock13.ctr" if (INVALID_SOCKET != sock) { if (NULL != pAddr) { #line 92 "dk4sock13.ctr" if (NULL != pSzAddr) { #line 93 "dk4sock13.ctr" if (0 < *pSzAddr) { #line 94 "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 108 "dk4sock13.ctr" dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS); } } else { #line 111 "dk4sock13.ctr" dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS); } } else { #line 114 "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 122 "dk4sock13.ctr" dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS); } #line 124 "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; #line 154 "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 173 "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 ((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 ) { 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 ) { return ( dk4socket_i_c8_unix_listener_ogm( filename, backlog, owner, group, mode, 1, erp ) ); } #endif