Sebastian Kuschel reports that pfd_closing can be called for a socket

[u/mdw/putty] / unix / uxprint.c

diff --git a/unix/uxprint.c b/unix/uxprint.c
index 6558317..3724100 100644 (file)
--- a/unix/uxprint.c
+++ b/unix/uxprint.c
@@ -3,22 +3,56 @@
  */
 
 #include <assert.h>
+#include <stdio.h>
 #include "putty.h"
 
+struct printer_job_tag {
+    FILE *fp;
+};
+
 printer_job *printer_start_job(char *printer)
 {
-    /* FIXME: open pipe to lpr */
-    return NULL;
+    printer_job *ret = snew(printer_job);
+    /*
+     * On Unix, we treat the printer string as the name of a
+     * command to pipe to - typically lpr, of course.
+     */
+    ret->fp = popen(printer, "w");
+    if (!ret->fp) {
+       sfree(ret);
+       ret = NULL;
+    }
+    return ret;
 }
 
 void printer_job_data(printer_job *pj, void *data, int len)
 {
-    /* FIXME: receive a pipe to lpr, write things to it */
-    assert(!"We shouldn't get here");
+    if (!pj)
+       return;
+
+    if (fwrite(data, 1, len, pj->fp) < len)
+       /* ignore */;
 }
 
 void printer_finish_job(printer_job *pj)
 {
-    /* FIXME: receive a pipe to lpr, close it */
-    assert(!"We shouldn't get here either");
+    if (!pj)
+       return;
+
+    pclose(pj->fp);
+    sfree(pj);
+}
+
+/*
+ * There's no sensible way to enumerate printers under Unix, since
+ * practically any valid Unix command is a valid printer :-) So
+ * these are useless stub functions, and uxcfg.c will disable the
+ * drop-down list in the printer configurer.
+ */
+printer_enum *printer_start_enum(int *nprinters_ptr) {
+    *nprinters_ptr = 0;
+    return NULL;
+}
+char *printer_get_name(printer_enum *pe, int i) { return NULL;
 }
+void printer_finish_enum(printer_enum *pe) { }