finally isolated the _important_ difference between Romano Trampus's
working printing.c and my failing one: he ignores the error return
from the first exploratory how-big-does-my-buffer-need-to-be call to
EnumPrinters(), because not having enough buffer space counts as an
error condition. Hence I am officially a klutz, but this should now
work. (Also reverted ENUM_LEVEL to 1, again, because that seems to
be the choice of people whose code works.)
git-svn-id: svn://svn.tartarus.org/sgt/putty@1915
cda61777-01e9-0310-a592-
d414129be87e
* under PRINTER_ENUM_CONNECTIONS on NT 4. I don't pretend to
* understand this...
*/
* under PRINTER_ENUM_CONNECTIONS on NT 4. I don't pretend to
* understand this...
*/
#define ENUM_LEVEL 5
#define ENUM_PTR LPPRINTER_INFO_5
#define ENUM_TYPE PRINTER_INFO_5
#define ENUM_LEVEL 5
#define ENUM_PTR LPPRINTER_INFO_5
#define ENUM_TYPE PRINTER_INFO_5
buffer = srealloc(buffer, offset+512);
buffer = srealloc(buffer, offset+512);
- if (EnumPrinters(param, NULL, ENUM_LEVEL, buffer+offset,
- 512, &needed, &nprinters) == 0)
- return NULL;
+ /*
+ * Exploratory call to EnumPrinters to determine how much space
+ * we'll need for the output. Discard the return value since it
+ * will almost certainly be a failure due to lack of space.
+ */
+ EnumPrinters(param, NULL, ENUM_LEVEL, buffer+offset, 512,
+ &needed, &nprinters);
if (needed < 512)
needed = 512;
if (needed < 512)
needed = 512;