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inetd: fix order of array index check and array access

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2015-03-03 13:10:30 +01:00
parent 3aef814c0b
commit 2ec4f44225
1 changed files with 5 additions and 3 deletions
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8
networking/inetd.c
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@ -645,7 +645,7 @@ static servtab_t *dup_servtab(servtab_t *sep)
}
/* gcc generates much more code if this is inlined */
static servtab_t *parse_one_line(void)
static NOINLINE servtab_t *parse_one_line(void)
{
int argc;
char *token[6+MAXARGV];
@ -675,6 +675,8 @@ static servtab_t *parse_one_line(void)
* default host for the following lines. */
free(default_local_hostname);
default_local_hostname = sep->se_local_hostname;
/*sep->se_local_hostname = NULL; - redundant */
/* (we'll overwrite this field anyway) */
goto more;
}
} else
@ -688,10 +690,10 @@ static servtab_t *parse_one_line(void)
parse_err:
bb_error_msg("parse error on line %u, line is ignored",
parser->lineno);
free_servtab_strings(sep);
/* Just "goto more" can make sep to carry over e.g.
* "rpc"-ness (by having se_rpcver_lo != 0).
* We will be more paranoid: */
free_servtab_strings(sep);
free(sep);
goto new;
}
@ -815,7 +817,7 @@ static servtab_t *parse_one_line(void)
}
#endif
argc = 0;
while ((arg = token[6+argc]) != NULL && argc < MAXARGV)
while (argc < MAXARGV && (arg = token[6+argc]) != NULL)
sep->se_argv[argc++] = xstrdup(arg);
/* Some inetd.conf files have no argv's, not even argv[0].
* Fix them up.