https://bugzilla.mindrot.org/show_bug.cgi?id=3427
Bug ID: 3427
Summary: display prompt error when displaying escape charaters
Product: Portable OpenSSH
Version: 8.6p1
Hardware: All
OS: All
Status: NEW
Severity: trivial
Priority: P5
Component: ssh
Assignee: [email protected]
Reporter: [email protected]
Created attachment 3588
--> https://bugzilla.mindrot.org/attachment.cgi?id=3588&action=edit
display prompt for different versions
The the function conv() is called by a service module to set
pam_message which msg_style is PAM_TEXT_INFO and msg contains escape
characters，such as QR code. In version 8.1p1, display prompt can
display correctly when using the ssh command to login，but，In version
8.6p1, prompt msg show no escape. Display results will be provided in
the attachment.
According to source code analysis, it is caused by function
asmprintf() which is called in line 1942 of file sshconnect2.c
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