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adduser: Allow '@', '%', '/' and '\' in username #7

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adduser: Allow '@', '%', '/' and '\' in username #7

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4 changes: 4 additions & 0 deletions libbb/die_if_bad_username.c
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,10 @@ void FAST_FUNC die_if_bad_username(const char *name)
/* These chars are valid unless they are at the 1st pos: */
if (*name == '-'
|| *name == '.'
|| *name == '@'
|| *name == '%'
|| *name == '/'
|| *name == '\\'
/* $ is allowed if it's the last char: */
|| (*name == '$' && !name[1])
) {
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