gspool_getspu - retrieve the permissions for a user
int getspu(const int fd, const char *user, struct apispdet *res)
The function gspool_getspu() is used to retrieve the defaults for a particular user
fd is a file descriptor previously returned by gspool_open
user is a pointer to the username of the user details being retrieved.
res is a descriptor, which upon return will contain the details of
user. The structure apispdet is defined in the file gsapi.h, and
contains the following fields:
| Type | Field | Description |
|---|---|---|
| unsigned char | spu_isvalid | Valid user ID |
| char [] | spu_resvd1 | Reserved |
| int_ugid_t | spu_user | User ID |
| unsigned char | spu_minp | Minimum priority |
| unsigned char | spu_maxp | Maximum priority |
| unsigned char | spu_defp | Default priority |
| char [] | spu_form | Default form type |
| char [] | spu_formallow | Allowed form type pattern |
| char [] | spu_ptr | Default printer |
| char [] | spu_ptrallow | Allowed printer pattern |
| unsigned long | spu_flgs | Privilege flag |
| classcode_t | spu_class | Class of printers |
| unsigned char | spu_cps | Maximum copies allowed |
| unsigned char | spu_version | Release of GNUspool |
The spu_flgs field of res will contain a combination of the
following:
| PV_ADMIN | Administrator (edit admin file) |
| PV_SSTOP | Can run sstop (can stop scheduler) |
| PV_FORMS | Can use other forms than default |
| PV_CPRIO | Can change priority on queue |
| PV_OTHERJ | Can change other users' jobs |
| PV_PRINQ | Can move to printer queue |
| PV_HALTGO | Can halt, restart printer |
| PV_ANYPRIO | Can set any priority on queue |
| PV_CDEFLT | Can change own default priority |
| PV_ADDDEL | Can add/delete printers |
| PV_COVER | Can override class |
| PV_UNQUEUE | Can unqueue jobs |
| PV_VOTHERJ | Can view other jobs not neccesarily edit |
| PV_REMOTEJ | Can access remote jobs |
| PV_REMOTEP | Can access remote printers |
| PV_FREEZEOK | Can save default options |
| PV_ACCESSOK | Can access sub-screens |
| PV_OTHERP | Can use other printers from default |
| ALLPRIVS | A combination of all of the above |
The function returns 0 if successful otherwise one of the error codes listed in Chapter 3.
An example to view the privileges of user mark:
int fd, ret; struct apispdet res;
fd = gspool_open("myhost", (char *)0, 0);
if (fd < 0) { /* error handling */
...
}
ret = gspool_getspu(fd, "mark", &res);
if (ret < 0) { /* error handling */
...
}
if (res.spu_flags & PV_HALTGO)
printf("user mark cannot halt printers\n");
printf("marks maximim priority is %d\n", res.spu_maxp);
gspool_close(fd);
gspool_getspd(3), gspool_putspu(3), gspool_putspd(3).
John M Collins, Xi Software Ltd.