[Asterisk-code-review] res_fax: validate the remote/local Station ID for UTF-8 format (asterisk[16])

[Alexei Gradinari]

Alexei Gradinari has uploaded a new patch set (#2). ( https://gerrit.asterisk.org/c/asterisk/+/15493 )

Change subject: res_fax: validate the remote/local Station ID for UTF-8 format
......................................................................

res_fax: validate the remote/local Station ID for UTF-8 format

If the remote Station ID contains invalid UTF-8 characters
the asterisk fails to publish the Stasis and ReceiveFax status messages.

json.c: Error building JSON from '{s: s, s: s}': Invalid UTF-8 string.
0: /usr/sbin/asterisk(ast_json_vpack+0x98) [0x4f3f28]
1: /usr/sbin/asterisk(ast_json_pack+0x8c) [0x4f3fcc]
2: /usr/sbin/asterisk(ast_channel_publish_varset+0x2b) [0x57aa0b]
3: /usr/sbin/asterisk(pbx_builtin_setvar_helper+0x121) [0x530641]
4: /usr/lib64/asterisk/modules/res_fax.so(+0x44fe) [0x7f27f4bff4fe]
...
stasis_channels.c: Error creating message

json.c: Error building JSON from '{s: s, s: s, s: s, s: s, s: s, s: s, s: o}': Invalid UTF-8 string.
0: /usr/sbin/asterisk(ast_json_vpack+0x98) [0x4f3f28]
1: /usr/sbin/asterisk(ast_json_pack+0x8c) [0x4f3fcc]
2: /usr/lib64/asterisk/modules/res_fax.so(+0x5acd) [0x7f27f4c00acd]
...
res_fax.c: Error publishing ReceiveFax status message

This patch replaces the invalid UTF-8 Station IDs with an empty string.

Change-Id: Ieb00b6ecf67db3bfca787649caa8517f29d987db
---
M res/res_fax.c
1 file changed, 6 insertions(+), 6 deletions(-)


  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/93/15493/2
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Gerrit-Project: asterisk
Gerrit-Branch: 16
Gerrit-Change-Id: Ieb00b6ecf67db3bfca787649caa8517f29d987db
Gerrit-Change-Number: 15493
Gerrit-PatchSet: 2
Gerrit-Owner: Alexei Gradinari <alex2grad at gmail.com>
Gerrit-CC: Friendly Automation
Gerrit-MessageType: newpatchset
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