[409] | 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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