37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
#include "asn1.h"
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size_t scan_asn1STRING(const char* src,const char* max,const char** s,size_t* l) {
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size_t tmp;
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unsigned long tag;
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enum asn1_tagclass tc;
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enum asn1_tagtype tt;
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if ((tmp=scan_asn1string(src,max,&tc,&tt,&tag,s,l)))
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if (tc==UNIVERSAL && tt==PRIMITIVE && tag==OCTET_STRING)
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return tmp;
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return 0;
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}
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#ifdef UNITTEST
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#include <string.h>
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#include <assert.h>
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#undef UNITTEST
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#include "scan_asn1tag.c"
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#include "scan_asn1tagint.c"
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#include "scan_asn1length.c"
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#include "scan_asn1string.c"
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int main() {
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char buf[100];
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const char* s;
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size_t l;
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strcpy(buf,"\x04\x05""fnord"); // 0x04 = UNIVERSAL PRIMITIVE OCTET_STRING, 0x05 = length 5, "fnord" = the string
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assert(scan_asn1STRING(buf,buf+7,&s,&l)==7 && s==buf+2 && l==5);
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assert(scan_asn1STRING(buf,buf+6,&s,&l)==0); // short input, make scan_asn1string fail
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buf[0]=0x13; // 0x13 = UNIVERSAL PRIMITIVE PrintableString
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assert(scan_asn1STRING(buf,buf+7,&s,&l)==0); // scan_asn1string succeeds but line 9 fails
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// we only care for 100% coverage of this file, the others have their own unit tests */
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return 0;
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}
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#endif
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