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find: add rudimentary support for -exec {} +

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function                                             old     new   delta
parse_params                                        1421    1414      -7

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
This commit is contained in:
Denys Vlasenko 2010-08-31 19:17:42 +02:00
parent ee06264a29
commit a61ff51b49
1 changed files with 14 additions and 10 deletions
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24
findutils/find.c
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@ -748,13 +748,13 @@ static action*** parse_params(char **argv)
/* This is the only place in busybox where we use nested function.
* So far more standard alternatives were bigger. */
/* Suppress a warning "func without a prototype" */
/* Auto decl suppresses "func without a prototype" warning: */
auto action* alloc_action(int sizeof_struct, action_fp f);
action* alloc_action(int sizeof_struct, action_fp f)
{
action *ap;
appp[cur_group] = xrealloc(appp[cur_group], (cur_action+2) * sizeof(*appp));
appp[cur_group][cur_action++] = ap = xmalloc(sizeof_struct);
appp[cur_group][cur_action++] = ap = xzalloc(sizeof_struct);
appp[cur_group][cur_action] = NULL;
ap->f = f;
IF_FEATURE_FIND_NOT( ap->invert = invert_flag; )
@ -854,16 +854,20 @@ static action*** parse_params(char **argv)
IF_FEATURE_FIND_NOT( invert_flag = 0; )
ap = ALLOC_ACTION(exec);
ap->exec_argv = ++argv; /* first arg after -exec */
ap->exec_argc = 0;
/*ap->exec_argc = 0; - ALLOC_ACTION did it */
while (1) {
if (!*argv) /* did not see ';' or '+' until end */
bb_error_msg_and_die(bb_msg_requires_arg, "-exec");
if (LONE_CHAR(argv[0], ';'))
// find -exec echo Foo ">{}<" ";"
// executes "echo Foo <filename>",
// find -exec echo Foo ">{}<" "+"
// executes "echo Foo <filename1> <filename2> <filename3>...".
// TODO (so far we treat "+" just like ";")
if ((argv[0][0] == ';' || argv[0][0] == '+')
&& argv[0][1] == '\0'
) {
break;
//TODO: implement {} + (like xargs)
// See:
// find findutils/ -exec echo ">"{}"<" \;
// find findutils/ -exec echo ">"{}"<" +
}
argv++;
ap->exec_argc++;
}
@ -936,7 +940,7 @@ static action*** parse_params(char **argv)
ap = ALLOC_ACTION(perm);
ap->perm_char = arg1[0];
arg1 = plus_minus_num(arg1);
ap->perm_mask = 0;
/*ap->perm_mask = 0; - ALLOC_ACTION did it */
if (!bb_parse_mode(arg1, &ap->perm_mask))
bb_error_msg_and_die("invalid mode '%s'", arg1);
}
@ -1022,7 +1026,7 @@ static action*** parse_params(char **argv)
else if (parm == PARM_context) {
action_context *ap;
ap = ALLOC_ACTION(context);
ap->context = NULL;
/*ap->context = NULL; - ALLOC_ACTION did it */
/* SELinux headers erroneously declare non-const parameter */
if (selinux_raw_to_trans_context((char*)arg1, &ap->context))
bb_simple_perror_msg(arg1);