From 6dbe3af945a63f025561abb83275cee9ff06c57b Mon Sep 17 00:00:00 2001
From: Karel Zak
Date: Thu, 7 Dec 2006 00:25:32 +0100
Subject: Imported from util-linux-2.2 tarball.

---
 sys-utils/tunelp.c | 248 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 248 insertions(+)
 create mode 100644 sys-utils/tunelp.c

(limited to 'sys-utils/tunelp.c')

diff --git a/sys-utils/tunelp.c b/sys-utils/tunelp.c
new file mode 100644
index 000000000..9005b172d
--- /dev/null
+++ b/sys-utils/tunelp.c
@@ -0,0 +1,248 @@
+/****************************************************************************\
+*	Copyright (C) 1992 by Michael K. Johnson, johnsonm@nigel.vnet.net    *
+*									     *
+*	This file is placed under the conditions of the GNU public	     *
+*	license, version 2, or any later version.  See file COPYING	     *
+*	for information on distribution conditions.			     *
+\****************************************************************************/
+
+/* tunelp.c,v 1.1.1.1 1995/02/22 19:09:12 faith Exp
+ * tunelp.c,v
+ * Revision 1.1.1.1  1995/02/22  19:09:12  faith
+ * Imported sources
+ *
+ * Revision 1.5  1995/01/13  10:33:43  johnsonm
+ * Chris's changes for new ioctl numbers and backwards compatibility
+ * and the reset ioctl.
+ *
+ * Revision 1.4  1995/01/03  17:42:14  johnsonm
+ * -s isn't supposed to take an argument; removed : after s in getopt...
+ *
+ * Revision 1.3  1995/01/03  07:36:49  johnsonm
+ * Fixed typo
+ *
+ * Revision 1.2  1995/01/03  07:33:44  johnsonm
+ * revisions for lp driver updates in Linux 1.1.76
+ *
+ *
+ */
+
+#include<unistd.h>
+#include<stdio.h>
+#include<fcntl.h>
+#include<linux/lp.h>
+#include<linux/fs.h>
+#include<sys/ioctl.h>
+#include<sys/stat.h>
+#include<sys/types.h>
+#include<malloc.h>
+#include<string.h>
+#include<errno.h>
+
+struct command {
+  long op;
+  long val;
+  struct command *next;
+};
+
+
+
+
+void print_usage(char *progname) {
+  printf("Usage: %s <device> [ -i <IRQ> | -t <TIME> | -c <CHARS> | -w <WAIT> | \n"
+         "          -a [on|off] | -o [on|off] | -C [on|off] | -q [on|off] | -s ]\n", progname);
+  exit (1);
+}
+
+
+
+
+
+void *mylloc(long size) {
+  void *ptr;
+  if(!(ptr = (void*)malloc(size))) {
+    perror("malloc error");
+    exit(2);
+  }
+  return ptr;
+}
+
+
+
+long get_val(char *val) {
+  long ret;
+  if (!(sscanf(val, "%d", &ret) == 1)) {
+    perror("sscanf error");
+    exit(3);
+  }
+  return ret;
+}
+
+
+long get_onoff(char *val) {
+  if (!strncasecmp("on", val, 2))
+    return 1;
+  return 0;
+}
+
+
+
+int main (int argc, char ** argv) {
+  int c, fd, irq, status, show_irq, offset = 0, retval;
+  char *progname;
+  char *filename;
+  struct stat statbuf;
+  struct command *cmds, *cmdst;
+
+
+  progname = argv[0];
+  if (argc < 2) print_usage(progname);
+
+  filename = strdup(argv[1]);
+  fd = open(filename, O_WRONLY|O_NONBLOCK, 0);
+  /* Need to open O_NONBLOCK in case ABORTOPEN is already set and
+     printer is off or off-line or in an error condition.  Otherwise
+     we would abort... */
+  if (fd < 0) {
+    perror(argv[1]);
+    return -1;
+  }
+
+  fstat(fd, &statbuf);
+
+  if((!S_ISCHR(statbuf.st_mode)) || (MAJOR(statbuf.st_rdev) != 6 )
+     || (MINOR(statbuf.st_rdev) > 3)) {
+    printf("%s: %s not an lp device.\n", argv[0], argv[1]);
+    print_usage(progname);
+  }
+
+  cmdst = cmds = mylloc(sizeof(struct command));
+  cmds->next = 0;
+
+  show_irq = 1;
+  while ((c = getopt(argc, argv, "t:c:w:a:i:ho:C:sq:r")) != EOF) {
+    switch (c) {
+    case 'h':
+      print_usage(progname);
+      break;
+    case 'i':
+      cmds->op = LPSETIRQ;
+      cmds->val = get_val(optarg);
+      cmds->next = mylloc(sizeof(struct command));
+      cmds = cmds->next; cmds->next = 0;
+      break;
+    case 't':
+      cmds->op = LPTIME;
+      cmds->val = get_val(optarg);
+      cmds->next = mylloc(sizeof(struct command));
+      cmds = cmds->next; cmds->next = 0;
+      break;
+    case 'c':
+      cmds->op = LPCHAR;
+      cmds->val = get_val(optarg);
+      cmds->next = mylloc(sizeof(struct command));
+      cmds = cmds->next; cmds->next = 0;
+      break;
+    case 'w':
+      cmds->op = LPWAIT;
+      cmds->val = get_val(optarg);
+      cmds->next = mylloc(sizeof(struct command));
+      cmds = cmds->next; cmds->next = 0;
+      break;
+    case 'a':
+      cmds->op = LPABORT;
+      cmds->val = get_onoff(optarg);
+      cmds->next = mylloc(sizeof(struct command));
+      cmds = cmds->next; cmds->next = 0;
+      break;
+    case 'q':
+      if (get_onoff(optarg)) {
+        show_irq=1;
+      } else {
+        show_irq=0;
+      }
+#ifdef LPGETSTATUS
+    case 'o':
+      cmds->op = LPABORTOPEN;
+      cmds->val = get_onoff(optarg);
+      cmds->next = mylloc(sizeof(struct command));
+      cmds = cmds->next; cmds->next = 0;
+      break;
+    case 'C':
+      cmds->op = LPCAREFUL;
+      cmds->val = get_onoff(optarg);
+      cmds->next = mylloc(sizeof(struct command));
+      cmds = cmds->next; cmds->next = 0;
+      break;
+    case 's':
+      show_irq = 0;
+      cmds->op = LPGETSTATUS;
+      cmds->val = 0;
+      cmds->next = mylloc(sizeof(struct command));
+      cmds = cmds->next; cmds->next = 0;
+      break;
+#endif
+#ifdef LPRESET
+    case 'r':
+      cmds->op = LPRESET;
+      cmds->val = 0;
+      cmds->next = mylloc(sizeof(struct command));
+      cmds = cmds->next; cmds->next = 0;
+      break;
+#endif
+    default: print_usage(progname);
+    }
+  }
+
+  /* Allow for binaries compiled under a new kernel to work on the old ones */
+  if (LPGETIRQ >= 0x0600 && ioctl(fd, LPGETIRQ) < 0 && errno == EINVAL)
+    offset = 0x0600;	/* We don't understand the new ioctls */
+
+  cmds = cmdst;
+  while (cmds->next) {
+#ifdef LPGETSTATUS
+    if (cmds->op == LPGETSTATUS) {
+      status = 0xdeadbeef;
+      retval = ioctl(fd, LPGETSTATUS - offset, &status);
+      if (retval < 0)
+      	perror("LPGETSTATUS error");
+      else {
+        if (status == 0xdeadbeef)	/* a few 1.1.7x kernels will do this */
+          status = retval;
+	printf("%s status is %d", filename, status);
+	if (!(status & LP_PBUSY)) printf(", busy");
+	if (!(status & LP_PACK)) printf(", ready");
+	if ((status & LP_POUTPA)) printf(", out of paper");
+	if ((status & LP_PSELECD)) printf(", on-line");
+	if (!(status & LP_PERRORP)) printf(", error");
+	printf("\n");
+      }
+    } else
+#endif /* LPGETSTATUS */
+    if (ioctl(fd, cmds->op - offset, cmds->val) < 0) {
+      perror("tunelp: ioctl");
+    }
+    cmdst = cmds;
+    cmds = cmds->next;
+    free(cmdst);
+  }
+
+  if (show_irq) {
+    irq = 0xdeadbeef;
+    retval = ioctl(fd, LPGETIRQ - offset, &irq);
+    if (retval == -1) {
+      perror("LPGETIRQ error");
+      exit(4);
+    }
+    if (irq == 0xdeadbeef)		/* up to 1.1.77 will do this */
+      irq = retval;
+    if (irq)
+      printf("%s using IRQ %d\n", filename, irq);
+    else
+      printf("%s using polling\n", filename);
+  }
+
+  close(fd);
+
+  return 0;
+}
-- 
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