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| author | Rainer Gerhards <rgerhards@adiscon.com> | 2013-03-29 16:04:21 +0100 |
|---|---|---|
| committer | Rainer Gerhards <rgerhards@adiscon.com> | 2013-03-29 16:04:21 +0100 |
| commit | 474877b9d7912a3d2abc2a350dbc41e4c3b050e4 (patch) | |
| tree | d2e04c9bb8a4542cf8757194b25441e3cb4d96ac /runtime/msg.c | |
| parent | d1caf0e291f0fb587781436f3f634749f761ea03 (diff) | |
| download | rsyslog-474877b9d7912a3d2abc2a350dbc41e4c3b050e4.tar.gz rsyslog-474877b9d7912a3d2abc2a350dbc41e4c3b050e4.tar.bz2 rsyslog-474877b9d7912a3d2abc2a350dbc41e4c3b050e4.zip | |
permit substring extraction relative to end-of-string in templates
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 32a02424..9afd46cf 100644 --- a/runtime/msg.c +++ b/runtime/msg.c @@ -3017,13 +3017,20 @@ 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 |