1/* 2 Unix SMB/CIFS implementation. 3 Samba utility functions 4 Copyright (C) Andrew Tridgell 1992-1998 5 Copyright (C) Jeremy Allison 2001-2002 6 Copyright (C) Simo Sorce 2001 7 Copyright (C) Jim McDonough (jmcd@us.ibm.com) 2003. 8 Copyright (C) James J Myers 2003 9 10 This program is free software; you can redistribute it and/or modify 11 it under the terms of the GNU General Public License as published by 12 the Free Software Foundation; either version 3 of the License, or 13 (at your option) any later version. 14 15 This program is distributed in the hope that it will be useful, 16 but WITHOUT ANY WARRANTY; without even the implied warranty of 17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 GNU General Public License for more details. 19 20 You should have received a copy of the GNU General Public License 21 along with this program. If not, see <http://www.gnu.org/licenses/>. 22*/ 23 24#include "includes.h" 25#include "system/network.h" 26#include "system/filesys.h" 27#include "system/locale.h" 28#undef malloc 29#undef strcasecmp 30#undef strncasecmp 31#undef strdup 32#undef realloc 33 34/** 35 Set a fd into blocking/nonblocking mode. Uses POSIX O_NONBLOCK if available, 36 else 37 if SYSV use O_NDELAY 38 if BSD use FNDELAY 39**/ 40 41_PUBLIC_ int set_blocking(int fd, bool set) 42{ 43 int val; 44#ifdef O_NONBLOCK 45#define FLAG_TO_SET O_NONBLOCK 46#else 47#ifdef SYSV 48#define FLAG_TO_SET O_NDELAY 49#else /* BSD */ 50#define FLAG_TO_SET FNDELAY 51#endif 52#endif 53 54 if((val = fcntl(fd, F_GETFL, 0)) == -1) 55 return -1; 56 if(set) /* Turn blocking on - ie. clear nonblock flag */ 57 val &= ~FLAG_TO_SET; 58 else 59 val |= FLAG_TO_SET; 60 return fcntl( fd, F_SETFL, val); 61#undef FLAG_TO_SET 62} 63