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die_if_bad_username: shrink: 88 -> 77 bytes

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This commit is contained in:
Denis Vlasenko 2008-03-19 23:25:00 +00:00
parent dd5702d696
commit 104d544fd7
1 changed files with 13 additions and 11 deletions
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24
libbb/die_if_bad_username.c
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@ -18,17 +18,19 @@
void die_if_bad_username(const char *name) void die_if_bad_username(const char *name)
{ {
int i = 0; goto skip; /* 1st char being dash isn't valid */
do { do {
if (!isalnum(*name) if (*name == '-')
&& !(*name == '_') continue;
&& !(*name == '.') skip:
&& !(*name == '@') if (isalnum(*name)
&& !(*name == '-' && i) || *name == '_'
&& !(*name == '$' && !*(name + 1)) || *name == '.'
) || *name == '@'
bb_error_msg_and_die("illegal character '%c'", *name); || (*name == '$' && !*(name + 1))
i++; ) {
continue;
}
bb_error_msg_and_die("illegal character '%c'", *name);
} while (*++name); } while (*++name);
} }