Grammer and layout fixes anno.man1

[mmh] / sbr / cpydgst.c

diff --git a/sbr/cpydgst.c b/sbr/cpydgst.c
index 068fb6e..5e5ef87 100644 (file)
--- a/sbr/cpydgst.c
+++ b/sbr/cpydgst.c
@@ -1,65 +1,68 @@
-
 /*
- * cpydgst.c -- copy from one fd to another in encapsulating mode
- *           -- (do dashstuffing of input data).
- *
- * $Id$
- */
+** cpydgst.c -- copy from one fd to another in encapsulating mode
+**           -- (do dashstuffing of input data).
+**
+** This code is Copyright (c) 2002, by the authors of nmh.  See the
+** COPYRIGHT file in the root directory of the nmh distribution for
+** complete copyright information.
+*/
 
+#include <sysexits.h>
+#include <unistd.h>
 #include <h/mh.h>
 
 /*
- * We want to perform the substitution
- *
- *     \n(-.*)\n      -->       \n- \1\n
- *
- * This is equivalent to the sed substitution
- *
- *     sed -e 's%^-%- -%' < ifile > ofile
- *
- *  but the routine below is faster than the pipe, fork, and exec.
- */
+** We want to perform the substitution
+**
+**     \n(-.*)\n    -->    \n- \1\n
+**
+** This is equivalent to the sed substitution
+**
+**     sed -e 's%^-%- -%' < ifile > ofile
+**
+**  but the routine below is faster than the pipe, fork, and exec.
+*/
 
-#define        S1 0
-#define        S2 1
+#define S1 0
+#define S2 1
 
-#define        output(c)   if (bp >= dp) {flush(); *bp++ = c;} else *bp++ = c
-#define        flush()     if ((j = bp - outbuf) && write (out, outbuf, j) != j) \
-                       adios (ofile, "error writing"); \
-                   else \
-                       bp = outbuf
+#define output(c)  if (bp >= dp) {flush(); *bp++ = c;} else *bp++ = c
+#define flush()  if ((j = bp - outbuf) && write(out, outbuf, j) != j) \
+               adios(EX_IOERR, ofile, "error writing"); \
+       else \
+               bp = outbuf
 
 
 void
-cpydgst (int in, int out, char *ifile, char *ofile)
+cpydgst(int in, int out, char *ifile, char *ofile)
 {
-    register int i, j, state;
-    register char *cp, *ep;
-    register char *bp, *dp;
-    char buffer[BUFSIZ], outbuf[BUFSIZ];
+       int i, j, state;
+       char *cp, *ep;
+       char *bp, *dp;
+       char buffer[BUFSIZ], outbuf[BUFSIZ];
 
-    dp = (bp = outbuf) + sizeof outbuf;
-    for (state = S1; (i = read (in, buffer, sizeof buffer)) > 0;)
-       for (ep = (cp = buffer) + i; cp < ep; cp++) {
-           if (*cp == '\0')
-               continue;
-           switch (state) {
-               case S1: 
-                   if (*cp == '-') {
-                       output ('-');
-                       output (' ');
-                   }
-                   state = S2; /* fall */
+       dp = (bp = outbuf) + sizeof outbuf;
+       for (state = S1; (i = read(in, buffer, sizeof buffer)) > 0;)
+               for (ep = (cp = buffer) + i; cp < ep; cp++) {
+                       if (*cp == '\0')
+                               continue;
+                       switch (state) {
+                       case S1:
+                               if (*cp == '-') {
+                                       output('-');
+                                       output(' ');
+                               }
+                               state = S2;  /* fall */
 
-               case S2: 
-                   output (*cp);
-                   if (*cp == '\n')
-                       state = S1;
-                   break;
-           }
-       }
+                       case S2:
+                               output(*cp);
+                               if (*cp == '\n')
+                                       state = S1;
+                               break;
+                       }
+               }
 
-    if (i == -1)
-       adios (ifile, "error reading");
-    flush();
+       if (i == -1)
+               adios(EX_IOERR, ifile, "error reading");
+       flush();
 }