1 /* $OpenBSD: build.c,v 1.3 2016/12/18 18:28:39 krw Exp $ */ 2 3 /* 4 * Copyright (c) 2004 Theo de Raadt <deraadt@openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 #include <sys/types.h> 19 #include <fcntl.h> 20 #include <unistd.h> 21 #include <err.h> 22 #include <stdio.h> 23 24 #include "3c990img.h" 25 #define FILENAME "3c990" 26 27 void 28 fullwrite(int fd, const void *buf, size_t nbytes) 29 { 30 ssize_t r; 31 32 r = write(fd, buf, nbytes); 33 if (r == -1) 34 err(1, "write"); 35 if (r != nbytes) 36 errx(1, "write: short write"); 37 } 38 39 int 40 main(int argc, char *argv[]) 41 { 42 int fd; 43 ssize_t rlen; 44 45 printf("creating %s length %zu\n", FILENAME, sizeof tc990image); 46 fd = open(FILENAME, O_WRONLY|O_CREAT|O_TRUNC, 0644); 47 if (fd == -1) 48 err(1, "%s", FILENAME); 49 50 rlen = write(fd, tc990image, sizeof tc990image); 51 if (rlen == -1) 52 err(1, "%s", FILENAME); 53 if (rlen != sizeof tc990image) 54 errx(1, "%s: short write", FILENAME); 55 close(fd); 56 return 0; 57 } 58