BSD 4_4 release

[unix-history] / usr / src / usr.bin / tee / tee.c

diff --git a/usr/src/usr.bin/tee/tee.c b/usr/src/usr.bin/tee/tee.c
index 2f366bf..ad1110a 100644 (file)
--- a/usr/src/usr.bin/tee/tee.c
+++ b/usr/src/usr.bin/tee/tee.c
@@ -1,44 +1,77 @@
 /*
 /*

- * Copyright (c) 1988 Regents of the University of California.
- * All rights reserved.
+ * Copyright (c) 1988, 1993
+ *     The Regents of the University of California.  All rights reserved.

  *
  *

- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley.  The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the University of
+ *     California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.

  */
 
 #ifndef lint
  */
 
 #ifndef lint

-char copyright[] =
-"@(#) Copyright (c) 1988 Regents of the University of California.\n\
- All rights reserved.\n";
+static char copyright[] =
+"@(#) Copyright (c) 1988, 1993\n\
+       The Regents of the University of California.  All rights reserved.\n";

 #endif /* not lint */
 
 #ifndef lint
 #endif /* not lint */
 
 #ifndef lint

-static char sccsid[] = "@(#)tee.c      5.5 (Berkeley) %G%";
+static char sccsid[] = "@(#)tee.c      8.1 (Berkeley) 6/6/93";

 #endif /* not lint */
 
 #include <sys/types.h>
 #endif /* not lint */
 
 #include <sys/types.h>

-#include <sys/file.h>
+#include <sys/stat.h>

 #include <signal.h>
 #include <signal.h>

+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>

 #include <stdio.h>
 #include <stdio.h>

+#include <stdlib.h>
+#include <string.h>
+
+typedef struct _list {
+       struct _list *next;
+       int fd;
+       char *name;
+} LIST;
+LIST *head;

 
 

+void add __P((int, char *));
+void err __P((int, const char *, ...));
+
+int

 main(argc, argv)
        int argc;
 main(argc, argv)
        int argc;

-       char **argv;
+       char *argv[];

 {
 {

-       extern int optind;
-       register int cnt, n, step;
-       int append, ch, *fd;
-       char buf[8192], *malloc();
-       off_t lseek();
+       register LIST *p;
+       register int n, fd, rval, wval;
+       register char *bp;
+       int append, ch, exitval;
+       char *buf;
+#define        BSIZE (8 * 1024)

 
        append = 0;
        while ((ch = getopt(argc, argv, "ai")) != EOF)
 
        append = 0;
        while ((ch = getopt(argc, argv, "ai")) != EOF)


@@ -51,30 +84,85 @@ main(argc, argv)
                        break;
                case '?':
                default:
                        break;
                case '?':
                default:

-                       fprintf(stderr, "usage: tee [-ai] [file ...]\n");
-                       exit(2);
+                       (void)fprintf(stderr, "usage: tee [-ai] [file ...]\n");
+                       exit(1);

                }
        argv += optind;
        argc -= optind;
 
                }
        argv += optind;
        argc -= optind;
 

-       if (!(fd = (int *)malloc((u_int)((argc + 1) * sizeof(int))))) {
-               fprintf(stderr, "tee: out of space.\n");
-               exit(2);
-       }
-       fd[0] = 1;                      /* always write to stdout */
-       for (cnt = 1; *argv; ++argv)
-               if ((fd[cnt] = open(*argv, append ? O_WRONLY|O_CREAT :
-                   O_WRONLY|O_CREAT|O_TRUNC, 0600)) < 0) {
-                       fprintf(stderr, "tee: %s: ", *argv);
-                       perror((char *)NULL);
-               }
-               else {
-                       if (append)
-                               (void)lseek(fd[cnt], 0L, L_XTND);
-                       ++cnt;
+       if ((buf = malloc((u_int)BSIZE)) == NULL)
+               err(1, "%s", strerror(errno));
+
+       add(STDOUT_FILENO, "stdout");
+
+       for (exitval = 0; *argv; ++argv)
+               if ((fd = open(*argv, append ? O_WRONLY|O_CREAT|O_APPEND :
+                   O_WRONLY|O_CREAT|O_TRUNC, DEFFILEMODE)) < 0) {
+                       err(0, "%s: %s", *argv, strerror(errno));
+                       exitval = 1;
+               } else
+                       add(fd, *argv);
+
+       while ((rval = read(STDIN_FILENO, buf, BSIZE)) > 0)
+               for (p = head; p; p = p->next) {
+                       n = rval;
+                       bp = buf;
+                       do {
+                               if ((wval = write(p->fd, bp, n)) == -1) {
+                                       err(0, "%s: %s",
+                                           p->name, strerror(errno));
+                                       exitval = 1;
+                                       break;
+                               }
+                               bp += wval;
+                       } while (n -= wval);

                }
                }

-       for (--cnt; (n = read(0, buf, sizeof(buf))) > 0;)
-               for (step = cnt; step >= 0; --step)
-                       (void)write(fd[step], buf, n);
-       exit(0);
+       if (rval < 0)
+               err(1, "read: %s", strerror(errno));
+       exit(exitval);
+}
+
+void
+add(fd, name)
+       int fd;
+       char *name;
+{
+       LIST *p;
+
+       if ((p = malloc((u_int)sizeof(LIST))) == NULL)
+               err(1, "%s", strerror(errno));
+       p->fd = fd;
+       p->name = name;
+       p->next = head;
+       head = p;
+}
+
+#if __STDC__
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
+
+void
+#if __STDC__
+err(int doexit, const char *fmt, ...)
+#else
+err(doexit, fmt, va_alist)
+       int doexit;
+       char *fmt;
+        va_dcl
+#endif
+{
+       va_list ap;
+#if __STDC__
+       va_start(ap, fmt);
+#else
+       va_start(ap);
+#endif
+       (void)fprintf(stderr, "tee: ");
+       (void)vfprintf(stderr, fmt, ap);
+       va_end(ap);
+       (void)fprintf(stderr, "\n");
+       if (doexit)
+               exit(1);

 }
 }