usr/src/cmd/sendmail/libsm/put.c

   1 /*
   2  * Copyright (c) 2000-2001 Sendmail, Inc. and its suppliers.
   3  *      All rights reserved.
   4  * Copyright (c) 1990, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * This code is derived from software contributed to Berkeley by
   8  * Chris Torek.
   9  *
  10  * By using this file, you agree to the terms and conditions set
  11  * forth in the LICENSE file which can be found at the top level of
  12  * the sendmail distribution.
  13  */
  14
  15 #pragma ident   "%Z%%M% %I%     %E% SMI"
  16
  17 #include <sm/gen.h>
  18 SM_RCSID("@(#)$Id: put.c,v 1.27 2001/12/19 05:19:35 ca Exp $")
  19 #include <string.h>
  20 #include <errno.h>
  21 #include <sm/io.h>
  22 #include <sm/assert.h>
  23 #include <sm/errstring.h>
  24 #include <sm/string.h>
  25 #include "local.h"
  26 #include "fvwrite.h"
  27
  28 /*
  29 **  SM_IO_PUTC -- output a character to the file
  30 **
  31 **  Function version of the macro sm_io_putc (in <sm/io.h>).
  32 **
  33 **      Parameters:
  34 **              fp -- file to output to
  35 **              timeout -- time to complete putc
  36 **              c -- int value of character to output
  37 **
  38 **      Returns:
  39 **              Failure: returns SM_IO_EOF _and_ sets errno
  40 **              Success: returns sm_putc() value.
  41 **
  42 */
  43
  44 #undef sm_io_putc
  45
  46 int
  47 sm_io_putc(fp, timeout, c)
  48         SM_FILE_T *fp;
  49         int timeout;
  50         int c;
  51 {
  52         SM_REQUIRE_ISA(fp, SmFileMagic);
  53         if (cantwrite(fp))
  54         {
  55                 errno = EBADF;
  56                 return SM_IO_EOF;
  57         }
  58         return sm_putc(fp, timeout, c);
  59 }
  60
  61
  62 /*
  63 **  SM_PERROR -- print system error messages to smioerr
  64 **
  65 **      Parameters:
  66 **              s -- message to print
  67 **
  68 **      Returns:
  69 **              none
  70 */
  71
  72 void
  73 sm_perror(s)
  74         const char *s;
  75 {
  76         int save_errno = errno;
  77
  78         if (s != NULL && *s != '\0')
  79                 (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT, "%s: ", s);
  80         (void) sm_io_fprintf(smioerr, SM_TIME_DEFAULT, "%s\n",
  81                              sm_errstring(save_errno));
  82 }