diff options
Diffstat (limited to 'runtime/msg.c')
| -rw-r--r-- | runtime/msg.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/runtime/msg.c b/runtime/msg.c index c302a050..1e61e632 100644 --- a/runtime/msg.c +++ b/runtime/msg.c @@ -3230,13 +3230,20 @@ uchar *MsgGetProp(msg_t *pMsg, struct templateEntry *pTpe, uchar *pSb; iFrom = pTpe->data.field.iFromPos; iTo = pTpe->data.field.iToPos; - /* need to zero-base to and from (they are 1-based!) */ - if(iFrom > 0) - --iFrom; - if(iTo > 0) - --iTo; if(bufLen == -1) bufLen = ustrlen(pRes); +dbgprintf("DDDD: orginal iFrom %u, iTo %u, len %u\n", iFrom, iTo, bufLen); + if(pTpe->data.field.options.bFromPosEndRelative) { + iFrom = (bufLen < iFrom) ? 0 : bufLen - iFrom; + iTo = (bufLen < iTo)? 0 : bufLen - iTo; +dbgprintf("DDDD: now iFrom %u, iTo %u\n", iFrom, iTo); + } else { + /* need to zero-base to and from (they are 1-based!) */ + if(iFrom > 0) + --iFrom; + if(iTo > 0) + --iTo; + } if(iFrom == 0 && iTo >= bufLen) { /* in this case, the requested string is a superset of what we already have, * so there is no need to do any processing. This is a frequent case for size-limited |