unistd.h (2313B)
1 /* $Id: //depot/blt/include/unistd.h#11 $ 2 ** 3 ** Copyright 1998 Sidney Cammeresi 4 ** All rights reserved. 5 ** 6 ** Redistribution and use in source and binary forms, with or without 7 ** modification, are permitted provided that the following conditions 8 ** are met: 9 ** 1. Redistributions of source code must retain the above copyright 10 ** notice, this list of conditions, and the following disclaimer. 11 ** 2. Redistributions in binary form must reproduce the above copyright 12 ** notice, this list of conditions, and the following disclaimer in the 13 ** documentation and/or other materials provided with the distribution. 14 ** 3. The name of the author may not be used to endorse or promote products 15 ** derived from this software without specific prior written permission. 16 ** 17 ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef _UNISTD_H_ 30 #define _UNISTD_H_ 31 32 #include <blt/types.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 ssize_t _read (int fd, void *buf, size_t count); 39 ssize_t read (int fd, void *buf, size_t count); 40 ssize_t _write (int fd, const void *buf, size_t count); 41 ssize_t write (int fd, const void *buf, size_t count); 42 int _close (int fd); 43 int close (int fd); 44 45 int _execve (const char *path, char * const *argv, char * const *envp); 46 int execve (const char *path, char * const *argv, char * const *envp); 47 48 void *_sbrk (int diff); 49 void *sbrk (int diff); 50 51 extern char *optarg; 52 extern int optind, optopt, opterr, optreset; 53 int _getopt (int argc, char * const *argv, const char *optstring); 54 int getopt (int argc, char * const *argv, const char *optstring); 55 56 #ifdef __cplusplus 57 } 58 #endif 59 60 61 #endif 62