DLMGCP message buffer to small, can not generate MGCP message

test_mgcp_client_cancel():
- composed msg with trans_id=1
- not in queue yet, cannot cancel yet
DLMGCP Cannot cancel, no such transaction: 1
- enqueue
- cancel succeeds
DLMGCP Canceled transaction 1
- late response gets discarded
DLMGCP Cannot find matching MGCP transaction for trans_id 1
- canceling again does nothing
DLMGCP Cannot cancel, no such transaction: 1
test_mgcp_client_cancel() done

test_sdp_section_start() test [0]:
body: ""
DLMGCP MGCP response: cannot find start of SDP parameters
got rc=-22

test_sdp_section_start() test [1]:
body: "\n\n"
got rc=0
got audio_port=0

test_sdp_section_start() test [2]:
body: "\r\n\r\n"
got rc=0
got audio_port=0

test_sdp_section_start() test [3]:
body: "\n\r\n\r"
got rc=0
got audio_port=0

test_sdp_section_start() test [4]:
body: "some mgcp header data\r\nand header params\n\nm=audio 23\r\n"
got rc=0
got audio_port=23

test_sdp_section_start() test [5]:
body: "some mgcp header data\r\nand header params\r\n\r\nm=audio 23\r\n"
got rc=0
got audio_port=23

test_sdp_section_start() test [6]:
body: "some mgcp header data\r\nand header params\n\r\n\rm=audio 23\r\n"
got rc=0
got audio_port=23

test_sdp_section_start() test [7]:
body: "some mgcp header data\r\nand header params\n\r\nm=audio 23\r\n"
DLMGCP MGCP response: cannot find start of SDP parameters
got rc=-22

test_sdp_section_start() test [8]:
body: "some mgcp header data\r\nand header params\r\n\rm=audio 23\r\n"
DLMGCP MGCP response: cannot find start of SDP parameters
got rc=-22

test_sdp_section_start() test [9]:
body: "some mgcp header data\r\nand header params\n\r\rm=audio 23\r\n"
DLMGCP MGCP response: cannot find start of SDP parameters
got rc=-22
DLMGCP ptmap contains illegal mapping: codec=113 maps to pt=2
DLMGCP ptmap contains illegal mapping: codec=0 maps to pt=100
DLMGCP ptmap contains illegal mapping: codec=113 maps to pt=2
DLMGCP ptmap contains illegal mapping: codec=0 maps to pt=100
Done