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shell/read: check that variable names are sane

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function                                             old     new   delta
shell_builtin_read                                  1000    1055     +55
parse_command                                       1460    1463      +3
builtin_umask                                        121     123      +2
is_well_formed_var_name                               73      66      -7

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2010-01-13 18:22:35 +01:00
parent 03d81ef43a
commit 25d9b91d94
5 changed files with 26 additions and 24 deletions
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10
shell/hush.c
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@ -893,16 +893,6 @@ static void cmdedit_update_prompt(void);
/* Utility functions
*/
static int is_well_formed_var_name(const char *s, char terminator)
{
if (!s || !(isalpha(*s) || *s == '_'))
return 0;
s++;
while (isalnum(*s) || *s == '_')
s++;
return *s == terminator;
}
/* Replace each \x with x in place, return ptr past NUL. */
static char *unbackslash(char *src)
{