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sftp: fix segfault regression introduced by #4747

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This fix adds a defensive check for the case where the char *name in
struct libssh2_knownhost is NULL

Fixes #5041
Closes #5062
This commit is contained in:
Jim Fuller 2020-03-08 18:35:21 +01:00 • committed by Daniel Stenberg
parent 464d944b51
commit e96fe70cab
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3 changed files with 72 additions and 17 deletions
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<testcase>
<info>
<keywords>
SFTP
known_hosts
</keywords>
</info>
#
# Client-side
<client>
<server>
sftp
</server>
<precheck>
mkdir -p %PWD/log/test1459.dir/.ssh
</precheck>
<features>
sftp
</features>
<name>
SFTP with corrupted known_hosts
</name>
<command>
-u : sftp://%HOSTIP:%SSHPORT/ -l
</command>
<file name="log/test1459.dir/.ssh/known_hosts">
|1|qy29Y1x/+/F39AzdG5515YSSw+c=|iB2WX5jrU3ZTWc+ZfGau7HHEvBc= ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAIEAynDN8cDJ3xNzRjTNNGciSHSxpubxhZ6YnkLdp1TkrGW8n\
R93Ey5VtBeBblYTRlFXBWJgKFcTKBRJ/O4qBZwbUgt10AHj31i6h8NehfT19tR8wG/YCmj3KtYLHmwdzmW1edEL9G2NdX2KiKYv7/zuly3QvmP0QA0NhWkAz0KdWNM=
</file>
<setenv>
CURL_HOME=%PWD/log/test1459.dir
</setenv>
</client>
# Verify data after the test has been "shot"
<verify>
<errorcode>
60
</errorcode>
<valgrind>
disable
</valgrind>
</verify>
</testcase>