1 /*- 2 * Copyright (c) 1997 Brian Somers <brian@Awfulhak.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $Id: defs.c,v 1.16 1998/06/15 19:06:41 brian Exp $ 27 */ 28 29 30 #include <stdlib.h> 31 #include <string.h> 32 #include <sys/errno.h> 33 #if !defined(__FreeBSD__) || __FreeBSD__ < 3 34 #include <time.h> 35 #endif 36 #include <unistd.h> 37 38 #include "defs.h" 39 40 void 41 randinit() 42 { 43 #if __FreeBSD__ >= 3 44 static int initdone; /* srandomdev() call is only required once */ 45 46 if (!initdone) { 47 initdone = 1; 48 srandomdev(); 49 } 50 #else 51 srandom((time(NULL)^getpid())+random()); 52 #endif 53 } 54 55 ssize_t 56 fullread(int fd, void *v, size_t n) 57 { 58 size_t got, total; 59 60 for (total = 0; total < n; total += got) 61 switch ((got = read(fd, (char *)v + total, n - total))) { 62 case 0: 63 return total; 64 case -1: 65 if (errno == EINTR) 66 got = 0; 67 else 68 return -1; 69 } 70 return total; 71 } 72 73 static struct { 74 int mode; 75 const char *name; 76 } modes[] = { 77 { PHYS_INTERACTIVE, "interactive" }, 78 { PHYS_AUTO, "auto" }, 79 { PHYS_DIRECT, "direct" }, 80 { PHYS_DEDICATED, "dedicated" }, 81 { PHYS_DDIAL, "ddial" }, 82 { PHYS_BACKGROUND, "background" }, 83 { PHYS_ALL, "*" }, 84 { 0, 0 } 85 }; 86 87 const char * 88 mode2Nam(int mode) 89 { 90 int m; 91 92 for (m = 0; modes[m].mode; m++) 93 if (modes[m].mode == mode) 94 return modes[m].name; 95 96 return "unknown"; 97 } 98 99 int 100 Nam2mode(const char *name) 101 { 102 int m, got, len; 103 104 len = strlen(name); 105 got = -1; 106 for (m = 0; modes[m].mode; m++) 107 if (!strncasecmp(name, modes[m].name, len)) { 108 if (modes[m].name[len] == '\0') 109 return modes[m].mode; 110 if (got != -1) 111 return 0; 112 got = m; 113 } 114 115 return got == -1 ? 0 : modes[got].mode; 116 } 117