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LibC: Fix truncated strncpy() in getlogin()

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This commit is contained in:
Andreas Kling 2020-04-13 11:58:00 +02:00
parent dda9ffe906
commit d1ffdea550
Notes: sideshowbarker 2024-07-19 07:38:08 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/d1ffdea5501
1 changed files with 1 additions and 1 deletions
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2
Libraries/LibC/unistd.cpp
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@ -538,7 +538,7 @@ char* getlogin()
{
static char __getlogin_buffer[256];
if (auto* passwd = getpwuid(getuid())) {
strncpy(__getlogin_buffer, passwd->pw_name, sizeof(__getlogin_buffer));
strncpy(__getlogin_buffer, passwd->pw_name, sizeof(__getlogin_buffer) - 1);
endpwent();
return __getlogin_buffer;
}