1*4887Schin /*********************************************************************** 2*4887Schin * * 3*4887Schin * This software is part of the ast package * 4*4887Schin * Copyright (c) 1985-2007 AT&T Knowledge Ventures * 5*4887Schin * and is licensed under the * 6*4887Schin * Common Public License, Version 1.0 * 7*4887Schin * by AT&T Knowledge Ventures * 8*4887Schin * * 9*4887Schin * A copy of the License is available at * 10*4887Schin * http://www.opensource.org/licenses/cpl1.0.txt * 11*4887Schin * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12*4887Schin * * 13*4887Schin * Information and Software Systems Research * 14*4887Schin * AT&T Research * 15*4887Schin * Florham Park NJ * 16*4887Schin * * 17*4887Schin * Glenn Fowler <gsf@research.att.com> * 18*4887Schin * David Korn <dgk@research.att.com> * 19*4887Schin * Phong Vo <kpv@research.att.com> * 20*4887Schin * * 21*4887Schin ***********************************************************************/ 22*4887Schin #pragma prototyped 23*4887Schin 24*4887Schin /* 25*4887Schin * -last fcntl 26*4887Schin */ 27*4887Schin 28*4887Schin #include <ast.h> 29*4887Schin 30*4887Schin #ifndef fcntl 31*4887Schin 32*4887Schin NoN(fcntl) 33*4887Schin 34*4887Schin #else 35*4887Schin 36*4887Schin #include <ls.h> 37*4887Schin #include <ast_tty.h> 38*4887Schin #include <error.h> 39*4887Schin 40*4887Schin #if F_SETFD >= _ast_F_LOCAL 41*4887Schin #if _sys_filio 42*4887Schin #include <sys/filio.h> 43*4887Schin #endif 44*4887Schin #endif 45*4887Schin 46*4887Schin #if _lib_fcntl 47*4887Schin #undef fcntl 48*4887Schin extern int fcntl(int, int, ...); 49*4887Schin #endif 50*4887Schin 51*4887Schin int 52*4887Schin _ast_fcntl(int fd, int op, ...) 53*4887Schin { 54*4887Schin int n; 55*4887Schin int save_errno; 56*4887Schin struct stat st; 57*4887Schin va_list ap; 58*4887Schin 59*4887Schin save_errno = errno; 60*4887Schin va_start(ap, op); 61*4887Schin if (op >= _ast_F_LOCAL) switch (op) 62*4887Schin { 63*4887Schin #if F_DUPFD >= _ast_F_LOCAL 64*4887Schin case F_DUPFD: 65*4887Schin n = va_arg(ap, int); 66*4887Schin op = dup2(fd, n); 67*4887Schin break; 68*4887Schin #endif 69*4887Schin #if F_GETFL >= _ast_F_LOCAL 70*4887Schin case F_GETFL: 71*4887Schin op = fstat(fd, &st); 72*4887Schin break; 73*4887Schin #endif 74*4887Schin #if F_SETFD >= _ast_F_LOCAL && defined(FIOCLEX) 75*4887Schin case F_SETFD: 76*4887Schin n = va_arg(ap, int); 77*4887Schin op = ioctl(fd, n == FD_CLOEXEC ? FIOCLEX : FIONCLEX, 0); 78*4887Schin break; 79*4887Schin #endif 80*4887Schin default: 81*4887Schin errno = EINVAL; 82*4887Schin op = -1; 83*4887Schin break; 84*4887Schin } 85*4887Schin else 86*4887Schin #if _lib_fcntl 87*4887Schin op = fcntl(fd, op, va_arg(ap, int)); 88*4887Schin #else 89*4887Schin { 90*4887Schin errno = EINVAL; 91*4887Schin op = -1; 92*4887Schin } 93*4887Schin #endif 94*4887Schin va_end(ap); 95*4887Schin return(op); 96*4887Schin } 97*4887Schin 98*4887Schin #endif 99