ucx/printf.c

Wed, 24 Jul 2024 23:45:31 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Wed, 24 Jul 2024 23:45:31 +0200
changeset 826
b6e9fd3f1951
parent 816
839fefbdedc7
permissions
-rw-r--r--

fix dav add-repo crash in case .dav/config.xml doesn't exist

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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 2021 Mike Becker, Olaf Wintermann All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 *
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26 * POSSIBILITY OF SUCH DAMAGE.
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27 */
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28
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29 #include "cx/printf.h"
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30
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31 #include <stdio.h>
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32 #include <string.h>
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33
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34 #ifndef CX_PRINTF_SBO_SIZE
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35 #define CX_PRINTF_SBO_SIZE 512
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36 #endif
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37 unsigned const cx_printf_sbo_size = CX_PRINTF_SBO_SIZE;
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38
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39 int cx_fprintf(
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40 void *stream,
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41 cx_write_func wfc,
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42 char const *fmt,
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43 ...
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44 ) {
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45 int ret;
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46 va_list ap;
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47 va_start(ap, fmt);
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48 ret = cx_vfprintf(stream, wfc, fmt, ap);
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49 va_end(ap);
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50 return ret;
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51 }
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52
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53 int cx_vfprintf(
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54 void *stream,
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55 cx_write_func wfc,
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56 char const *fmt,
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57 va_list ap
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58 ) {
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59 char buf[CX_PRINTF_SBO_SIZE];
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60 va_list ap2;
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61 va_copy(ap2, ap);
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62 int ret = vsnprintf(buf, CX_PRINTF_SBO_SIZE, fmt, ap);
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63 if (ret < 0) {
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64 va_end(ap2);
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65 return ret;
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66 } else if (ret < CX_PRINTF_SBO_SIZE) {
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67 va_end(ap2);
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68 return (int) wfc(buf, 1, ret, stream);
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69 } else {
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70 int len = ret + 1;
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71 char *newbuf = malloc(len);
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72 if (!newbuf) {
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73 va_end(ap2);
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74 return -1;
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75 }
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76
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77 ret = vsnprintf(newbuf, len, fmt, ap2);
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78 va_end(ap2);
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79 if (ret > 0) {
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80 ret = (int) wfc(newbuf, 1, ret, stream);
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81 }
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82 free(newbuf);
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83 }
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84 return ret;
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85 }
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86
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87 cxmutstr cx_asprintf_a(
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88 CxAllocator const *allocator,
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89 char const *fmt,
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90 ...
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91 ) {
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92 va_list ap;
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93 va_start(ap, fmt);
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94 cxmutstr ret = cx_vasprintf_a(allocator, fmt, ap);
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95 va_end(ap);
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96 return ret;
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97 }
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98
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99 cxmutstr cx_vasprintf_a(
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100 CxAllocator const *a,
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101 char const *fmt,
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102 va_list ap
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103 ) {
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104 cxmutstr s;
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105 s.ptr = NULL;
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106 s.length = 0;
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107 char buf[CX_PRINTF_SBO_SIZE];
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108 va_list ap2;
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109 va_copy(ap2, ap);
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110 int ret = vsnprintf(buf, CX_PRINTF_SBO_SIZE, fmt, ap);
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111 if (ret >= 0 && ret < CX_PRINTF_SBO_SIZE) {
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112 s.ptr = cxMalloc(a, ret + 1);
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113 if (s.ptr) {
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114 s.length = (size_t) ret;
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115 memcpy(s.ptr, buf, ret);
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116 s.ptr[s.length] = '\0';
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117 }
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118 } else {
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119 int len = ret + 1;
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120 s.ptr = cxMalloc(a, len);
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121 if (s.ptr) {
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122 ret = vsnprintf(s.ptr, len, fmt, ap2);
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123 if (ret < 0) {
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124 free(s.ptr);
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125 s.ptr = NULL;
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126 } else {
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127 s.length = (size_t) ret;
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128 }
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129 }
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130 }
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131 va_end(ap2);
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132 return s;
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133 }
efbd59642577 ucx 3 update, basic dav commands work, most stuff is still broken
Olaf Wintermann <olaf.wintermann@gmail.com>
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134
816
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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135 int cx_sprintf_a(CxAllocator *alloc, char **str, size_t *len, const char *fmt, ... ) {
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
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136 va_list ap;
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
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137 va_start(ap, fmt);
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
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138 int ret = cx_vsprintf_a(alloc, str, len, fmt, ap);
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
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139 va_end(ap);
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
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140 return ret;
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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141 }
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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142
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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143 int cx_vsprintf_a(CxAllocator *alloc, char **str, size_t *len, const char *fmt, va_list ap) {
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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144 va_list ap2;
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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145 va_copy(ap2, ap);
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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146 int ret = vsnprintf(*str, *len, fmt, ap);
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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147 if ((unsigned) ret >= *len) {
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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148 unsigned newlen = ret + 1;
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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149 char *ptr = cxRealloc(alloc, *str, newlen);
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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150 if (ptr) {
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
151 int newret = vsnprintf(ptr, newlen, fmt, ap2);
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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152 if (newret < 0) {
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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153 cxFree(alloc, ptr);
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
154 } else {
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
155 *len = newlen;
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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156 *str = ptr;
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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157 ret = newret;
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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158 }
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
159 }
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
160 }
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
161 va_end(ap2);
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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162 return ret;
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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163 }
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
164
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
165 int cx_sprintf_sa(CxAllocator *alloc, char *buf, size_t *len, char **str, const char *fmt, ... ) {
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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166 va_list ap;
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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167 va_start(ap, fmt);
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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168 int ret = cx_vsprintf_sa(alloc, buf, len, str, fmt, ap);
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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169 va_end(ap);
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
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170 return ret;
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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171 }
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
172
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
173 int cx_vsprintf_sa(CxAllocator *alloc, char *buf, size_t *len, char **str, const char *fmt, va_list ap) {
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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174 va_list ap2;
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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175 va_copy(ap2, ap);
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
176 int ret = vsnprintf(buf, *len, fmt, ap);
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
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177 *str = buf;
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
178 if ((unsigned) ret >= *len) {
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
179 unsigned newlen = ret + 1;
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
180 char *ptr = cxMalloc(alloc, newlen);
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
181 if (ptr) {
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
182 int newret = vsnprintf(ptr, newlen, fmt, ap2);
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
183 if (newret < 0) {
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
184 cxFree(alloc, ptr);
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
185 } else {
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
186 *len = newlen;
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
187 *str = ptr;
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
188 ret = newret;
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
189 }
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
190 }
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
191 }
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
192 va_end(ap2);
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
193 return ret;
839fefbdedc7 compatibility with UCX 3.1 plus several minor code fixes
Mike Becker <universe@uap-core.de>
parents: 747
diff changeset
194 }

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