1 files changed, 112 insertions, 0 deletions
diff --git a/src/utils/pfbtops/pfbtops.c b/src/utils/pfbtops/pfbtops.c
new file mode 100644
index 000000000..46b882f53
--- /dev/null
+++ b/src/utils/pfbtops/pfbtops.c
@@ -0,0 +1,112 @@
+/* This translates ps fonts in .pfb format to ASCII ps files. */
+
+#include <stdio.h>
+
+/* Binary bytes per output line. */
+#define BYTES_PER_LINE (64/2)
+#define HEX_DIGITS "0123456789abcdef"
+
+static char *program_name;
+
+static void error(s)
+     char *s;
+{
+  fprintf(stderr, "%s: %s\n", program_name, s);
+  exit(2);
+}
+
+static void usage()
+{
+  fprintf(stderr, "usage: %s [-v] [pfb_file]\n", program_name);
+  exit(1);
+}
+
+int main(argc, argv)
+     int argc;
+     char **argv;
+{
+  int opt;
+  extern int optind;
+
+  program_name = argv[0];
+
+  while ((opt = getopt(argc, argv, "v")) != EOF) {
+    switch (opt) {
+    case 'v':
+      {
+	extern char *Version_string;
+	fprintf(stderr, "pfbtops groff version %s\n", Version_string);
+	fflush(stderr);
+	break;
+      }
+    case '?':
+      usage();
+    }
+  }
+
+  if (argc - optind > 1)
+    usage();
+  if (argc > optind && !freopen(argv[optind], "r", stdin))
+    {
+      perror(argv[optind]);
+      exit(1);
+    }
+  for (;;)
+    {
+      int type, c, i;
+      long n;
+
+      c = getchar();
+      if (c != 0x80)
+	error("first byte of packet not 0x80");
+      type = getchar();
+      if (type == 3)
+	break;
+      if (type != 1 && type != 2)
+	error("bad packet type");
+      n = 0;
+      for (i = 0; i < 4; i++)
+	{
+	  c = getchar();
+	  if (c == EOF)
+	    error("end of file in packet header");
+	  n |= (long)c << (i << 3);
+	}
+      if (n < 0)
+	error("negative packet length");
+      if (type == 1)
+	{
+	  while (--n >= 0)
+	    {
+	      c = getchar();
+	      if (c == EOF)
+		error("end of file in text packet");
+	      if (c == '\r')
+		c = '\n';
+	      putchar(c);
+	    }
+	  if (c != '\n')
+	    putchar('\n');
+	}
+      else
+	{
+	  int count = 0;
+	  while (--n >= 0)
+	    {
+	      c = getchar();
+	      if (c == EOF)
+		error("end of file in binary packet");
+	      if (count >= BYTES_PER_LINE)
+		{
+		  putchar('\n');
+		  count = 0;
+		}
+	      count++;
+	      putchar(HEX_DIGITS[(c >> 4) & 0xf]);
+	      putchar(HEX_DIGITS[c & 0xf]);
+	    }
+	  putchar('\n');
+	}
+    }
+  exit(0);
+}