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Code Issues Releases Wiki Activity

added code to support command listings

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This commit is contained in:
Todd C. Miller
1994-09-20 21:52:47 +00:00
parent 410f21dd76
commit 0d973cdf2d
1 changed files with 102 additions and 1 deletions
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103
parse.c
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@@ -82,6 +82,7 @@ LINK tmp_ptr, reset_ptr, save_ptr, list_ptr[NUM_LISTS];
*/
static int hostcmp __P((char *));
static int cmndcmp __P((char *, char *));
static void print_cmnds __P((void));
/*
@@ -383,6 +384,69 @@ int cmnd_type_ok()
/*
* this routine is called from cmnd_list() to print the actual commands
* that a user is allowed or forbidden to run on the already.
* established host.
*/
static void print_cmnds()
{
/*
* If we have a command or special keyword "ALL", print it out
*/
if (list_ptr[USER_LIST] -> data[0] == '/' ||
!strcmp(list_ptr[USER_LIST]->data, "ALL")) {
/*
* print the allowed/forbidden command
*/
if (list_ptr[USER_LIST] -> op == '!')
(void) printf("forbidden: ");
else
(void) printf(" allowed: ");
(void) printf("%s\n", list_ptr[USER_LIST] -> data);
}
/*
* by now we have a Cmnd_Alias that will have to be expanded
*/
else {
save_ptr = list_ptr[CMND_LIST];
while (list_ptr[CMND_LIST] != NULL) {
if ((list_ptr[CMND_LIST] -> type == TYPE2) &&
(strcmp(list_ptr[CMND_LIST] -> data,
list_ptr[USER_LIST] -> data) == 0)) {
next_type = list_ptr[CMND_LIST] -> next -> type;
tmp_ptr = list_ptr[CMND_LIST];
list_ptr[CMND_LIST] = tmp_ptr -> next;
while (next_type == TYPE3) {
/*
* print the allowed/forbidden command
*/
if (list_ptr[USER_LIST] -> op == '!')
(void) printf("forbidden: ");
else
(void) printf(" allowed: ");
(void) printf("%s\n", list_ptr[CMND_LIST] -> data);
if (list_ptr[CMND_LIST] -> next != NULL) {
next_type = list_ptr[CMND_LIST] -> next -> type;
tmp_ptr = list_ptr[CMND_LIST];
list_ptr[CMND_LIST] = tmp_ptr -> next;
} else {
next_type = ~TYPE3;
}
}
} else {
tmp_ptr = list_ptr[CMND_LIST];
list_ptr[CMND_LIST] = tmp_ptr -> next;
}
}
list_ptr[CMND_LIST] = save_ptr;
}
}
/*
* this routine is called from validate() after the call_back() routine
* has built all the possible lists. this routine steps thru the user list
@@ -424,6 +488,39 @@ int cmnd_check()
/*
* list commands for a user if got -l
*/
int cmnd_list()
{
while (list_ptr[USER_LIST] != NULL) {
if ((list_ptr[USER_LIST] -> type == TYPE2) && host_type_ok()) {
next_type = list_ptr[USER_LIST] -> next -> type;
tmp_ptr = list_ptr[USER_LIST];
list_ptr[USER_LIST] = tmp_ptr -> next;
while (next_type == TYPE3) {
/* print out the available commands */
print_cmnds();
if (list_ptr[USER_LIST] -> next != NULL) {
next_type = list_ptr[USER_LIST] -> next -> type;
tmp_ptr = list_ptr[USER_LIST];
list_ptr[USER_LIST] = tmp_ptr -> next;
} else {
next_type = ~TYPE3;
}
}
} else {
tmp_ptr = list_ptr[USER_LIST];
list_ptr[USER_LIST] = tmp_ptr -> next;
}
}
return (VALIDATE_NOT_OK);
}
/*
* this routine is called from the sudo.c module and tries to validate
* the user, host and command triplet.
@@ -480,7 +577,11 @@ int validate()
*/
switch (return_code) {
case FOUND_USER:
return_code = cmnd_check();
/* do we want to list available commands or check a given command? */
if (strcmp(cmnd, "list") == 0)
return_code = cmnd_list();
else
return_code = cmnd_check();
delete_list(USER_LIST);
delete_list(HOST_LIST);
delete_list(CMND_LIST);