Fix sethostname(2) nul termination.
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1 changed files with 2 additions and 2 deletions
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@ -1,5 +1,5 @@
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/*
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/*
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* Copyright (c) 2014 Jonas 'Sortie' Termansen.
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* Copyright (c) 2014, 2022 Jonas 'Sortie' Termansen.
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*
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*
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* Permission to use, copy, modify, and distribute this software for any
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* purpose with or without fee is hereby granted, provided that the above
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@ -60,7 +60,7 @@ int sys_sethostname(const char* src_name, size_t src_name_size)
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return errno = EINVAL, -1;
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return errno = EINVAL, -1;
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if ( !CopyFromUser(new_hostname, src_name, src_name_size) )
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if ( !CopyFromUser(new_hostname, src_name, src_name_size) )
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return -1;
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return -1;
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size_t new_hostname_length = strnlen(new_hostname, sizeof(new_hostname));
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size_t new_hostname_length = strnlen(new_hostname, src_name_size);
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if ( HOST_NAME_MAX < new_hostname_length )
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if ( HOST_NAME_MAX < new_hostname_length )
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return errno = EINVAL, -1;
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return errno = EINVAL, -1;
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new_hostname[new_hostname_length] = '\0';
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new_hostname[new_hostname_length] = '\0';
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