retronetworking
/
yate
12
0
Fork 2
Code Issues Pull Requests Projects Releases Wiki Activity

Bug fix: when encoding a long ASN.1 tag, insert it at the beginning of the payload, not at the end. 

git-svn-id: http://voip.null.ro/svn/yate@5543 acf43c95-373e-0410-b603-e72c3f656dc1
This commit is contained in:
oana 2013-06-13 13:59:33 +00:00
parent 38225640c2
commit edd8dc5642
1 changed files with 7 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
libs/yasn/asn.cpp
View File

@ -1270,14 +1270,15 @@ void AsnTag::encode(Class clas, Type type, unsigned int code, DataBlock& data)
}
else {
u_int8_t last = clas | type | 31;
data.append(&last,sizeof(last));
DataBlock coding;
coding.append(&last,sizeof(last));
int size = sizeof(unsigned int);
bool start = false;
while (size > 1) {
u_int8_t msb = (code >> ((size - 1) * 8));
if (start) {
msb |= 0x80;
data.append(&msb,sizeof(msb));
coding.append(&msb,sizeof(msb));
}
else {
if (msb == 0) {
@ -1287,18 +1288,19 @@ void AsnTag::encode(Class clas, Type type, unsigned int code, DataBlock& data)
else {
start = true;
msb |= 0x80;
data.append(&msb,sizeof(msb));
coding.append(&msb,sizeof(msb));
}
}
size--;
}
last = code;
data.append(&last,sizeof(last));
coding.append(&last,sizeof(last));
data.insert(coding);
}
#ifdef XDEBUG
String str;
str.hexify(data.data(),data.length(),' ');
XDebug(s_libName.c_str(),DebugAll,"AsnTag::encode(clas=0x%x, type=0x%x, code=%u) tag=%s",clas,type,code,str.c_str());
Debug(s_libName.c_str(),DebugAll,"AsnTag::encode(clas=0x%x, type=0x%x, code=%u) tag=%s",clas,type,code,str.c_str());
#endif
}