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Fix swaylock w/shadow on glibc, improve security

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Today I learned that GNU flaunts the POSIX standard in yet another
creative way. Additionally, this adds some security improvements,
namely:

- Zeroing out password buffers in the privileged child process
- setuid/setgid after reading /etc/shadow
This commit is contained in:
Drew DeVault 2018-10-06 12:17:36 -04:00
parent 85961f63bf
commit c89e00a97e
3 changed files with 31 additions and 0 deletions
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meson.build
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@ -44,6 +44,7 @@ gdk_pixbuf = dependency('gdk-pixbuf-2.0', required: false)
pixman = dependency('pixman-1')
libinput = dependency('libinput', version: '>=1.6.0')
libpam = cc.find_library('pam', required: false)
crypt = cc.find_library('crypt', required: false)
systemd = dependency('libsystemd', required: false)
elogind = dependency('libelogind', required: false)
math = cc.find_library('m')