src/server/util.c

Wed, 28 Dec 2011 10:57:36 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Wed, 28 Dec 2011 10:57:36 +0100
changeset 7
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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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4 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
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5 *
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6 * THE BSD LICENSE
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7 *
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8 * Redistribution and use in source and binary forms, with or without
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9 * modification, are permitted provided that the following conditions are met:
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10 *
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11 * Redistributions of source code must retain the above copyright notice, this
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12 * list of conditions and the following disclaimer.
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13 * Redistributions in binary form must reproduce the above copyright notice,
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14 * this list of conditions and the following disclaimer in the documentation
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15 * and/or other materials provided with the distribution.
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16 *
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17 * Neither the name of the nor the names of its contributors may be
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18 * used to endorse or promote products derived from this software without
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19 * specific prior written permission.
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20 *
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21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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25 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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26 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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27 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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28 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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30 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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31 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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32 */
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33
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34 /*
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35 * util.c: A hodge podge of utility functions and standard functions which
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36 * are unavailable on certain systems
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37 *
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38 * Rob McCool
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39 */
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40
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41 #ifdef XP_UNIX
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42 #include <sys/types.h>
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43 #include <sys/wait.h>
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44 #include <stdlib.h>
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45 #include <unistd.h>
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46 #include <limits.h>
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47 #include "prthread.h"
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48 #endif /* XP_UNIX */
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49
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50
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51 #include "nspr.h"
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52 #include "nsapi.h"
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53
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54 #include "util.h"
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55
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56 /*
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57 NSAPI_PUBLIC int util_getboolean(const char *v, int def) {
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58 if(v[0] == 'T' || v[0] == 't') {
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59 return 1;
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60 }
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61 if(v[0] == 'F' || v[0] == 'f') {
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62 return 0;
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63 }
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64 return def;
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65 }
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66 */
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67
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68 NSAPI_PUBLIC int INTutil_getboolean(const char *v, int def) {
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69 if(v[0] == 'T' || v[0] == 't') {
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70 return 1;
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71 }
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72 if(v[0] == 'F' || v[0] == 'f') {
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73 return 0;
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74 }
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75 return def;
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76 }
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77
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78
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79 /* ------------------------------ util_itoa ------------------------------- */
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80 /*
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81 NSAPI_PUBLIC int util_itoa(int i, char *a)
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82 {
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83 int len = util_i64toa(i, a);
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84
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85 PR_ASSERT(len < UTIL_ITOA_SIZE);
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86
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87 return len;
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88 }
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89 */
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90 NSAPI_PUBLIC int INTutil_itoa(int i, char *a) {
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91 return INTutil_i64toa(i, a);
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92 }
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93
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94
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95 /* ----------------------------- util_i64toa ------------------------------ */
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96
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97 /*
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98 * Assumption: Reversing the digits will be faster in the general case
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99 * than doing a log10 or some nasty trick to find the # of digits.
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100 */
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101
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102 NSAPI_PUBLIC int INTutil_i64toa(PRInt64 i, char *a)
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103 {
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104 register int x, y, p;
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105 register char c;
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106 int negative;
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107
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108 negative = 0;
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109 if(i < 0) {
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110 *a++ = '-';
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111 negative = 1;
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112 i = -i;
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113 }
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114 p = 0;
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115 while(i > 9) {
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116 a[p++] = (i%10) + '0';
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117 i /= 10;
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118 }
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119 a[p++] = i + '0';
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120
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121 if(p > 1) {
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122 for(x = 0, y = p - 1; x < y; ++x, --y) {
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123 c = a[x];
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124 a[x] = a[y];
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125 a[y] = c;
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126 }
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127 }
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128 a[p] = '\0';
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129
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130 //PR_ASSERT(p + negative < UTIL_I64TOA_SIZE);
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131
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132 return p + negative;
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133 }

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