1 | /* Copyright 2009, UCAR/Unidata and OPeNDAP, Inc. |
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2 | See the COPYRIGHT file for more information. */ |
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3 | |
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4 | #include "config.h" |
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5 | #ifdef HAVE_UNISTD_H |
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6 | #include <unistd.h> |
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7 | #endif |
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8 | #include <fcntl.h> |
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9 | #include "ocinternal.h" |
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10 | #include "ocdebug.h" |
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11 | |
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12 | #ifdef WIN32 |
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13 | #define snprintf _snprintf |
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14 | #endif |
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15 | |
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16 | /* Order is important: longest first */ |
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17 | static char* DDSdatamarks[3] = {"Data:\r\n","Data:\n",(char*)NULL}; |
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18 | |
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19 | /* Not all systems have strndup, so provide one*/ |
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20 | char* |
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21 | ocstrndup(const char* s, size_t len) |
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22 | { |
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23 | char* dup; |
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24 | if(s == NULL) return NULL; |
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25 | dup = (char*)ocmalloc(len+1); |
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26 | MEMCHECK(dup,NULL); |
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27 | memcpy((void*)dup,s,len); |
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28 | dup[len] = '\0'; |
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29 | return dup; |
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30 | } |
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31 | |
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32 | /* Do not trust strncmp semantics */ |
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33 | int |
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34 | ocstrncmp(const char* s1, const char* s2, size_t len) |
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35 | { |
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36 | const char *p,*q; |
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37 | if(s1 == s2) return 0; |
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38 | if(s1 == NULL) return -1; |
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39 | if(s2 == NULL) return +1; |
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40 | for(p=s1,q=s2;len > 0;p++,q++,len--) { |
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41 | if(*p == 0 && *q == 0) return 0; /* *p == *q == 0 */ |
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42 | if(*p != *q) |
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43 | return (*p - *q); |
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44 | } |
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45 | /* 1st len chars are same */ |
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46 | return 0; |
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47 | } |
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48 | |
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49 | |
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50 | void |
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51 | makedimlist(OClist* path, OClist* dims) |
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52 | { |
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53 | unsigned int i,j; |
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54 | for(i=0;i<oclistlength(path);i++) { |
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55 | OCnode* node = (OCnode*)oclistget(path,i); |
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56 | unsigned int rank = node->array.rank; |
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57 | for(j=0;j<rank;j++) { |
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58 | OCnode* dim = (OCnode*)oclistget(node->array.dimensions,j); |
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59 | oclistpush(dims,(ocelem)dim); |
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60 | } |
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61 | } |
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62 | } |
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63 | |
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64 | void |
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65 | ocfreeprojectionclause(OCprojectionclause* clause) |
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66 | { |
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67 | if(clause->target != NULL) free(clause->target); |
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68 | while(oclistlength(clause->indexsets) > 0) { |
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69 | OClist* slices = (OClist*)oclistpop(clause->indexsets); |
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70 | while(oclistlength(slices) > 0) { |
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71 | OCslice* slice = (OCslice*)oclistpop(slices); |
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72 | if(slice != NULL) free(slice); |
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73 | } |
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74 | oclistfree(slices); |
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75 | } |
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76 | oclistfree(clause->indexsets); |
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77 | free(clause); |
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78 | } |
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79 | |
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80 | static void |
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81 | freeAttributes(OClist* attset) |
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82 | { |
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83 | unsigned int i,j; |
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84 | for(i=0;i<oclistlength(attset);i++) { |
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85 | OCattribute* att = (OCattribute*)oclistget(attset,i); |
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86 | if(att->name != NULL) free(att->name); |
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87 | if(att->etype == OC_String || att->etype == OC_URL) { |
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88 | for(j=0;j<att->nvalues;j++) { |
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89 | char* s = ((char**)att->values)[j]; |
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90 | if(s != NULL) free(s); |
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91 | } |
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92 | } else { |
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93 | free(att->values); |
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94 | } |
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95 | } |
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96 | } |
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97 | |
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98 | void |
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99 | freeOCnode(OCnode* cdf, int deep) |
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100 | { |
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101 | unsigned int i; |
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102 | if(cdf == NULL) return; |
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103 | if(cdf->name != NULL) free(cdf->name); |
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104 | if(cdf->fullname != NULL) free(cdf->fullname); |
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105 | if(cdf->attributes != NULL) freeAttributes(cdf->attributes); |
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106 | if(cdf->subnodes != NULL) { |
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107 | if(deep) { |
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108 | for(i=0;i<oclistlength(cdf->subnodes);i++) { |
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109 | OCnode* node = (OCnode*)oclistget(cdf->subnodes,i); |
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110 | freeOCnode(node,deep); |
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111 | } |
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112 | } |
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113 | oclistfree(cdf->subnodes); |
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114 | } |
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115 | free(cdf); |
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116 | } |
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117 | |
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118 | int |
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119 | findbod(OCbytes* buffer, size_t* bodp, size_t* ddslenp) |
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120 | { |
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121 | unsigned int i; |
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122 | char* content; |
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123 | size_t len = ocbyteslength(buffer); |
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124 | char** marks; |
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125 | |
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126 | content = ocbytescontents(buffer); |
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127 | |
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128 | for(marks = DDSdatamarks;*marks;marks++) { |
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129 | char* mark = *marks; |
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130 | int tlen = strlen(mark); |
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131 | for(i=0;i<len;i++) { |
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132 | if((i+tlen) <= len |
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133 | && (ocstrncmp(content+i,mark,tlen)==0)) { |
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134 | *ddslenp = i; |
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135 | i += tlen; |
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136 | *bodp = i; |
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137 | return 1; |
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138 | } |
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139 | } |
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140 | } |
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141 | *ddslenp = 0; |
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142 | *bodp = 0; |
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143 | return 0; /* tag not found; not necessarily an error*/ |
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144 | } |
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145 | |
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146 | /* Compute total # of elements if dimensioned*/ |
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147 | size_t |
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148 | totaldimsize(OCnode* node) |
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149 | { |
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150 | unsigned int i; |
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151 | size_t count = 1; |
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152 | for(i=0;i<node->array.rank;i++) { |
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153 | OCnode* dim = (OCnode*)oclistget(node->array.dimensions,i); |
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154 | count *= (dim->dim.declsize); |
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155 | } |
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156 | return count; |
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157 | } |
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158 | |
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159 | #ifdef OCIGNORE |
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160 | size_t |
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161 | totaldimsize(unsigned int rank, size_t* dimsizes) |
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162 | { |
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163 | unsigned int i; |
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164 | int unlim = 0; |
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165 | unsigned long size = 1; |
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166 | for(i=0;i<rank;i++) { |
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167 | if(dimsizes[i] != 0) size = (size * dimsizes[i]); else unlim = 1; |
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168 | } |
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169 | return size; |
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170 | } |
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171 | #endif |
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172 | |
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173 | size_t |
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174 | octypesize(OCtype etype) |
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175 | { |
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176 | switch (etype) { |
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177 | case OC_Char: return sizeof(char); |
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178 | case OC_Byte: return sizeof(signed char); |
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179 | case OC_UByte: return sizeof(unsigned char); |
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180 | case OC_Int16: return sizeof(short); |
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181 | case OC_UInt16: return sizeof(unsigned short); |
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182 | case OC_Int32: return sizeof(int); |
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183 | case OC_UInt32: return sizeof(unsigned int); |
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184 | case OC_Float32: return sizeof(float); |
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185 | case OC_Float64: return sizeof(double); |
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186 | #ifdef HAVE_LONG_LONG_INT |
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187 | case OC_Int64: return sizeof(long long); |
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188 | case OC_UInt64: return sizeof(unsigned long long); |
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189 | #endif |
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190 | case OC_String: return sizeof(char*); |
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191 | case OC_URL: return sizeof(char*); |
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192 | default: break; /* Ignore all others */ |
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193 | } |
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194 | return 0; |
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195 | } |
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196 | |
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197 | char* |
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198 | octypetostring(OCtype octype) |
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199 | { |
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200 | switch (octype) { |
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201 | case OC_NAT: return "OC_NAT"; |
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202 | case OC_Char: return "OC_Char"; |
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203 | case OC_Byte: return "OC_Byte"; |
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204 | case OC_UByte: return "OC_UByte"; |
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205 | case OC_Int16: return "OC_Int16"; |
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206 | case OC_UInt16: return "OC_UInt16"; |
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207 | case OC_Int32: return "OC_Int32"; |
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208 | case OC_UInt32: return "OC_UInt32"; |
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209 | case OC_Int64: return "OC_Int64"; |
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210 | case OC_UInt64: return "OC_UInt64"; |
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211 | case OC_Float32: return "OC_Float32"; |
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212 | case OC_Float64: return "OC_Float64"; |
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213 | case OC_String: return "OC_String"; |
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214 | case OC_URL: return "OC_URL"; |
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215 | /* Non-primitives*/ |
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216 | case OC_Dataset: return "OC_Dataset"; |
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217 | case OC_Sequence: return "OC_Sequence"; |
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218 | case OC_Grid: return "OC_Grid"; |
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219 | case OC_Structure: return "OC_Structure"; |
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220 | case OC_Dimension: return "OC_Dimension"; |
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221 | case OC_Attribute: return "OC_Attribute"; |
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222 | case OC_Attributeset: return "OC_Attributeset"; |
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223 | case OC_Primitive: return "OC_Primitive"; |
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224 | default: break; |
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225 | } |
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226 | return NULL; |
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227 | } |
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228 | |
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229 | char* |
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230 | octypetoddsstring(OCtype octype) |
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231 | { |
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232 | switch (octype) { |
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233 | case OC_Byte: return "Byte"; |
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234 | case OC_Int16: return "Int16"; |
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235 | case OC_UInt16: return "UInt16"; |
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236 | case OC_Int32: return "Int32"; |
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237 | case OC_UInt32: return "UInt32"; |
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238 | case OC_Float32: return "Float32"; |
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239 | case OC_Float64: return "Float64"; |
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240 | case OC_String: return "String"; |
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241 | case OC_URL: return "Url"; |
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242 | default: break; |
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243 | } |
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244 | return "<unknown>"; |
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245 | } |
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246 | |
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247 | |
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248 | OCerror |
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249 | octypeprint(OCtype etype, char* buf, size_t bufsize, void* value) |
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250 | { |
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251 | if(buf == NULL || bufsize == 0 || value == NULL) return OC_EINVAL; |
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252 | buf[0] = '\0'; |
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253 | switch (etype) { |
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254 | case OC_Char: |
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255 | snprintf(buf,bufsize,"'%c'",*(char*)value); |
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256 | break; |
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257 | case OC_Byte: |
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258 | snprintf(buf,bufsize,"%d",*(signed char*)value); |
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259 | break; |
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260 | case OC_UByte: |
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261 | snprintf(buf,bufsize,"%u",*(unsigned char*)value); |
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262 | break; |
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263 | case OC_Int16: |
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264 | snprintf(buf,bufsize,"%d",*(short*)value); |
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265 | break; |
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266 | case OC_UInt16: |
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267 | snprintf(buf,bufsize,"%u",*(unsigned short*)value); |
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268 | break; |
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269 | case OC_Int32: |
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270 | snprintf(buf,bufsize,"%d",*(int*)value); |
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271 | break; |
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272 | case OC_UInt32: |
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273 | snprintf(buf,bufsize,"%u",*(unsigned int*)value); |
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274 | break; |
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275 | case OC_Float32: |
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276 | snprintf(buf,bufsize,"%g",*(float*)value); |
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277 | break; |
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278 | case OC_Float64: |
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279 | snprintf(buf,bufsize,"%g",*(double*)value); |
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280 | break; |
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281 | #ifdef HAVE_LONG_LONG_INT |
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282 | case OC_Int64: |
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283 | snprintf(buf,bufsize,"%lld",*(long long*)value); |
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284 | break; |
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285 | case OC_UInt64: |
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286 | snprintf(buf,bufsize,"%llu",*(unsigned long long*)value); |
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287 | break; |
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288 | #endif |
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289 | case OC_String: |
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290 | case OC_URL: { |
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291 | char* s = *(char**)value; |
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292 | snprintf(buf,bufsize,"\"%s\"",s); |
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293 | } break; |
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294 | default: break; |
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295 | } |
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296 | return OC_NOERR; |
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297 | } |
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298 | |
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299 | size_t |
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300 | xxdrsize(OCtype etype) |
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301 | { |
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302 | switch (etype) { |
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303 | case OC_Char: |
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304 | case OC_Byte: |
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305 | case OC_UByte: |
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306 | case OC_Int16: |
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307 | case OC_UInt16: |
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308 | case OC_Int32: |
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309 | case OC_UInt32: |
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310 | return XDRUNIT; |
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311 | case OC_Int64: |
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312 | case OC_UInt64: |
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313 | return (2*XDRUNIT); |
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314 | case OC_Float32: |
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315 | return XDRUNIT; |
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316 | case OC_Float64: |
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317 | return (2*XDRUNIT); |
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318 | case OC_String: |
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319 | case OC_URL: |
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320 | default: break; |
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321 | } |
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322 | return 0; |
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323 | } |
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324 | |
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325 | /**************************************/ |
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326 | |
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327 | char* |
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328 | ocerrstring(int err) |
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329 | { |
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330 | if(err == 0) return "no error"; |
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331 | if(err > 0) return strerror(err); |
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332 | switch (err) { |
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333 | case OC_EBADID: |
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334 | return "OC_EBADID: Not a valid ID"; |
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335 | case OC_EINVAL: |
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336 | return "OC_EINVAL: Invalid argument"; |
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337 | case OC_EPERM: |
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338 | return "OC_EPERM: Write to read only"; |
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339 | case OC_EINVALCOORDS: |
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340 | return "OC_EINVALCOORDS: Index exceeds dimension bound"; |
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341 | case OC_ENOTVAR: |
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342 | return "OC_ENOTVAR: Variable not found"; |
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343 | case OC_ECHAR: |
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344 | return "OC_ECHAR: Attempt to convert between text & numbers"; |
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345 | case OC_EEDGE: |
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346 | return "OC_EEDGE: Start+count exceeds dimension bound"; |
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347 | case OC_ESTRIDE: |
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348 | return "OC_ESTRIDE: Illegal stride"; |
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349 | case OC_ENOMEM: |
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350 | return "OC_ENOMEM: Memory allocation (malloc) failure"; |
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351 | case OC_EDIMSIZE: |
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352 | return "OC_EDIMSIZE: Invalid dimension size"; |
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353 | case OC_EDAP: |
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354 | return "OC_EDAP: DAP failure"; |
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355 | case OC_EXDR: |
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356 | return "OC_EXDR: XDR failure"; |
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357 | case OC_ECURL: |
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358 | return "OC_ECURL: libcurl failure"; |
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359 | case OC_EBADURL: |
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360 | return "OC_EBADURL: malformed url"; |
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361 | case OC_EBADVAR: |
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362 | return "OC_EBADVAR: no such variable"; |
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363 | case OC_EOPEN: |
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364 | return "OC_EOPEN: temporary file open failed"; |
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365 | case OC_EIO: |
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366 | return "OC_EIO: I/O failure"; |
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367 | case OC_ENODATA: |
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368 | return "OC_ENODATA: Variable has no data in DAP request"; |
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369 | case OC_EDAPSVC: |
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370 | return "OC_EDAPSVC: DAP Server error"; |
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371 | case OC_ENAMEINUSE: |
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372 | return "OC_ENAMEINUSE: Duplicate name in DDS"; |
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373 | case OC_EDAS: |
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374 | return "OC_EDAS: Malformed or unreadable DAS"; |
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375 | case OC_EDDS: |
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376 | return "OC_EDDS: Malformed or unreadable DDS"; |
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377 | case OC_EDATADDS: |
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378 | return "OC_EDATADDS: Malformed or unreadable DATADDS"; |
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379 | case OC_ERCFILE: |
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380 | return "OC_ERCFILE: Malformed or unreadable run-time configuration file"; |
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381 | case OC_ENOFILE: |
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382 | return "OC_ENOFILE: cannot read content of URL"; |
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383 | default: break; |
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384 | } |
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385 | return "<unknown error code>"; |
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386 | } |
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387 | |
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388 | OCerror |
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389 | ocsvcerrordata(OCstate* state, char** codep, char** msgp, long* httpp) |
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390 | { |
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391 | if(codep) *codep = state->error.code; |
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392 | if(msgp) *msgp = state->error.message; |
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393 | if(httpp) *httpp = state->error.httpcode; |
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394 | return OC_NOERR; |
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395 | } |
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396 | |
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397 | /* if we get OC_EDATADDS error, then try to capture any |
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398 | error message and log it; assumes that in this case, |
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399 | the datadds is not big. |
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400 | */ |
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401 | void |
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402 | ocdataddsmsg(OCstate* state, OCtree* tree) |
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403 | { |
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404 | #define ERRCHUNK 1024 |
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405 | #define ERRFILL ' ' |
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406 | #define ERRTAG "Error {" |
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407 | unsigned int i,j,len; |
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408 | XXDR* xdrs; |
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409 | char* contents; |
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410 | off_t ckp; |
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411 | |
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412 | if(tree == NULL) return; |
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413 | /* get available space */ |
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414 | xdrs = tree->data.xdrs; |
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415 | len = xxdr_length(xdrs); |
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416 | if(len < strlen(ERRTAG)) |
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417 | return; /* no room */ |
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418 | ckp = xxdr_getpos(xdrs); |
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419 | xxdr_setpos(xdrs,0); |
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420 | /* read the whole thing */ |
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421 | contents = (char*)malloc(len+1); |
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422 | xxdr_getbytes(xdrs,contents,len); |
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423 | contents[len] = '\0'; |
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424 | /* Look for error tag */ |
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425 | for(i=0;i<len;i++) { |
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426 | if(ocstrncmp(contents+i,ERRTAG,strlen(ERRTAG))==0) { |
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427 | /* log the error message */ |
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428 | /* Do a quick and dirty escape */ |
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429 | for(j=i;j<len;j++) { |
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430 | int c = contents[i+j]; |
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431 | if(c > 0 && (c < ' ' || c >= '\177')) |
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432 | contents[i+j] = ERRFILL; |
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433 | } |
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434 | oc_log(LOGERR,"DATADDS failure, possible message: '%s'\n", |
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435 | contents+i); |
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436 | goto done; |
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437 | } |
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438 | } |
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439 | xxdr_setpos(xdrs,ckp); |
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440 | done: |
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441 | return; |
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442 | } |
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