| 1 | // ========== Copyright Header Begin ========================================== |
| 2 | // |
| 3 | // OpenSPARC T2 Processor File: arg.cc |
| 4 | // Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. |
| 5 | // DO NOT ALTER OR REMOVE COPYRIGHT NOTICES. |
| 6 | // |
| 7 | // The above named program is free software; you can redistribute it and/or |
| 8 | // modify it under the terms of the GNU General Public |
| 9 | // License version 2 as published by the Free Software Foundation. |
| 10 | // |
| 11 | // The above named program is distributed in the hope that it will be |
| 12 | // useful, but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | // General Public License for more details. |
| 15 | // |
| 16 | // You should have received a copy of the GNU General Public |
| 17 | // License along with this work; if not, write to the Free Software |
| 18 | // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. |
| 19 | // |
| 20 | // ========== Copyright Header End ============================================ |
| 21 | // Utility for parsing sysconf args |
| 22 | // Copyright 2004 Sun Microsystems Inc |
| 23 | // All rights reserved |
| 24 | // |
| 25 | //@(#)arg.cc 1.3 06/04/18 |
| 26 | // |
| 27 | #include <sys/types.h> |
| 28 | #include <stdio.h> |
| 29 | #include <stdlib.h> |
| 30 | #include <stdarg.h> |
| 31 | #include <strings.h> |
| 32 | #include "arg.h" |
| 33 | |
| 34 | // return str from name=value |
| 35 | bool |
| 36 | argval(const char *name, const char *arg, const char **value) |
| 37 | { |
| 38 | bool ans = false; |
| 39 | char *tmp = strdup(arg); |
| 40 | char *peq = strchr(tmp, '='); |
| 41 | if (peq) { |
| 42 | *peq = '\0'; |
| 43 | ans = !strcmp(name, tmp); |
| 44 | *peq = '='; |
| 45 | if (ans) { |
| 46 | if (*value) |
| 47 | free((void *)(*value)); |
| 48 | *value = strdup(peq + 1); |
| 49 | } |
| 50 | } else { |
| 51 | ans = !strcmp(name, tmp); |
| 52 | if (ans) { |
| 53 | if (*value) |
| 54 | free((void *)(*value)); |
| 55 | *value = strdup(""); |
| 56 | } |
| 57 | } |
| 58 | free(tmp); |
| 59 | return ans; |
| 60 | } |
| 61 | |
| 62 | // return bool from name=value |
| 63 | bool |
| 64 | argval(const char *name, const char *arg, bool *value) |
| 65 | { |
| 66 | const char *str = NULL; |
| 67 | if (argval(name, arg, &str)) { |
| 68 | if (!str[0]) |
| 69 | *value = true; // missing '=value', treat as a switch |
| 70 | else if (strchr("tTyY1", str[0])) // true or yes or 1 |
| 71 | *value = true; |
| 72 | else if (!strchr("oO", str[0])) // on vs off |
| 73 | *value = false; |
| 74 | else if (strchr("nN", str[1])) |
| 75 | *value = true; |
| 76 | else |
| 77 | *value = false; |
| 78 | free((void*)str); |
| 79 | return true; |
| 80 | } |
| 81 | return false; |
| 82 | } |
| 83 | |
| 84 | // return unsigned long long from name=value |
| 85 | bool |
| 86 | argval(const char *name, const char *arg, unsigned long long *value) |
| 87 | { |
| 88 | const char *str = NULL; |
| 89 | if (argval(name, arg, &str)) { |
| 90 | *value = getull(str); |
| 91 | free((void*)str); |
| 92 | return true; |
| 93 | } |
| 94 | return false; |
| 95 | } |
| 96 | |
| 97 | // return int from name=value |
| 98 | bool |
| 99 | argval(const char *name, const char *arg, int *value) |
| 100 | { |
| 101 | unsigned long long ull; |
| 102 | if (argval(name, arg, &ull)) { |
| 103 | *value = (int) ull; |
| 104 | return true; |
| 105 | } |
| 106 | return false; |
| 107 | } |
| 108 | |
| 109 | // return ul from name=value |
| 110 | bool |
| 111 | argval(const char *name, const char *arg, unsigned long *value) |
| 112 | { |
| 113 | unsigned long long ull; |
| 114 | if (argval(name, arg, &ull)) { |
| 115 | *value = (unsigned long) ull; |
| 116 | return true; |
| 117 | } |
| 118 | return false; |
| 119 | } |
| 120 | |
| 121 | // convert decimal, octal or hex |
| 122 | int |
| 123 | getint(const char *s) |
| 124 | { |
| 125 | return (int) strtol(s, NULL, 0); |
| 126 | } |
| 127 | |
| 128 | unsigned long long |
| 129 | getull(const char *s) |
| 130 | { |
| 131 | return (unsigned long long) strtoll(s, NULL, 0); |
| 132 | } |
| 133 | |
| 134 | // format a string and return a copy |
| 135 | const char *makestr(const char *format, ...) |
| 136 | { |
| 137 | va_list ap; |
| 138 | char buf[10000]; |
| 139 | |
| 140 | va_start(ap, format); |
| 141 | vsnprintf(buf, sizeof buf, format, ap); |
| 142 | va_end(ap); |
| 143 | return strdup(buf); |
| 144 | } |
| 145 | |