git.distorted.org.uk Git - u/mdw/putty/blob - unix/uxprint.c

   1 /*
   2  * Printing interface for PuTTY.
   3  */
   4
   5 #include <assert.h>
   6 #include <stdio.h>
   7 #include "putty.h"
   8
   9 struct printer_job_tag {
  10     FILE *fp;
  11 };
  12
  13 printer_job *printer_start_job(char *printer)
  14 {
  15     printer_job *ret = snew(printer_job);
  16     /*
  17      * On Unix, we treat the printer string as the name of a
  18      * command to pipe to - typically lpr, of course.
  19      */
  20     ret->fp = popen(printer, "w");
  21     if (!ret->fp) {
  22         sfree(ret);
  23         ret = NULL;
  24     }
  25     return ret;
  26 }
  27
  28 void printer_job_data(printer_job *pj, void *data, int len)
  29 {
  30     if (!pj)
  31         return;
  32
  33     if (fwrite(data, 1, len, pj->fp) < len)
  34         /* ignore */;
  35 }
  36
  37 void printer_finish_job(printer_job *pj)
  38 {
  39     if (!pj)
  40         return;
  41
  42     pclose(pj->fp);
  43     sfree(pj);
  44 }
  45
  46 /*
  47  * There's no sensible way to enumerate printers under Unix, since
  48  * practically any valid Unix command is a valid printer :-) So
  49  * these are useless stub functions, and uxcfg.c will disable the
  50  * drop-down list in the printer configurer.
  51  */
  52 printer_enum *printer_start_enum(int *nprinters_ptr) {
  53     *nprinters_ptr = 0;
  54     return NULL;
  55 }
  56 char *printer_get_name(printer_enum *pe, int i) { return NULL;
  57 }
  58 void printer_finish_enum(printer_enum *pe) { }