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#### Type Of Change - [x] Small bug fix (non-breaking change which fixes an issue) - [ ] New feature (non-breaking change which adds new functionality) - [ ] Breaking change (fix or feature that would change existing functionality)

#### Checklist: <!-- Go over all points below, and after creating the PR, tick the checkboxes that apply --> - [ ] PR should be backported to stable branches - [x] Tested changes locally - [ ] Related to issue #XXXX (replace XXXX with an open issue number)

#### Description <!-- Describe your changes in detail --> Fix the following issues found by Coverity: 3c86d68 fixes defect [85605](https://scan8.coverity.com/reports.htm#v32382/p10993/fileInstanceId=17916961...) 7f603ec fixes defect [86015](https://scan8.coverity.com/reports.htm#v32382/p10993/fileInstanceId=17916961...) 2772f09 fixes defects [85807](https://scan8.coverity.com/reports.htm#v32382/p10993/fileInstanceId=17916966...) and [85651](https://scan8.coverity.com/reports.htm#v32382/p10993/fileInstanceId=17916966...) d8fdcb3 fixes defects [153773](https://scan8.coverity.com/reports.htm#v32382/p10993/fileInstanceId=17916953...), [85749](https://scan8.coverity.com/reports.htm#v32382/p10993/fileInstanceId=17916953...) and [85702](https://scan8.coverity.com/reports.htm#v32382/p10993/fileInstanceId=17916953...) 3a9365f fixes defects [85541](https://scan8.coverity.com/reports.htm#v32382/p10993/fileInstanceId=17916951...) and [85543](https://scan8.coverity.com/reports.htm#v32382/p10993/fileInstanceId=17916951...) dbafb5a fixes defect [85484](https://scan8.coverity.com/reports.htm#v32382/p10993/fileInstanceId=17916961...) 535eb88 fixes defect [155203](https://scan8.coverity.com/reports.htm#v32382/p10993/fileInstanceId=17916969...) You can view, comment on, or merge this pull request online at:

https://github.com/kamailio/kamailio/pull/1199

-- Commit Summary --

* carrierroute: avoid out-of-bounds access when resetting opts * carrierroute: check pointer before dereferencing it * carrieroute: remove logically dead code * carrierroute: avoid comparing size_t types with negative values * carrierroute: check return value for fseek * carrierroute: avoid truncating value returned by fgetc * carrierroute: avoid ovverruning a fixed sized buffer

-- File Changes --

M src/modules/carrierroute/cr_config.c (125) M src/modules/carrierroute/cr_db.c (6) M src/modules/carrierroute/cr_fifo.c (11) M src/modules/carrierroute/cr_func.c (14) M src/modules/carrierroute/parser_carrierroute.c (13)

-- Patch Links --

https://github.com/kamailio/kamailio/pull/1199.patch https://github.com/kamailio/kamailio/pull/1199.diff