compiler/clib/__stdio.c

   1 /*
   2     Copyright © 1995-2001, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: stdio internals
   6     Lang: English
   7 */
   8
   9 #include "__arosc_privdata.h"
  10
  11 #include <stdio.h>
  12 #include <stdlib.h>
  13 #include <fcntl.h>
  14 #include <unistd.h>
  15 #include <errno.h>
  16
  17 #include <exec/lists.h>
  18 #include <dos/dos.h>
  19 #include <proto/exec.h>
  20 #include <proto/dos.h>
  21 #include <aros/symbolsets.h>
  22 #include <aros/debug.h>
  23 #include "__open.h"
  24 #include "__stdio.h"
  25
  26 int __smode2oflags(const char *mode)
  27 {
  28     int ret = -1;
  29     int theresb = 0;
  30
  31     switch (*mode++)
  32     {
  33         case 'r':
  34             ret = O_RDONLY;
  35             break;
  36
  37         case 'w':
  38             ret = O_WRONLY | O_CREAT | O_TRUNC;
  39             break;
  40
  41         case 'a':
  42             ret = O_WRONLY | O_CREAT | O_APPEND;
  43             break;
  44
  45         default:
  46             errno = EINVAL;
  47             return -1;
  48     }
  49
  50     if (*mode == 'b')
  51     {
  52         theresb = 1;
  53         mode++;
  54     }
  55
  56     if (*mode == '+')
  57     {
  58         ret = O_RDWR | (ret & ~O_ACCMODE);
  59         mode++;
  60     }
  61
  62     if (*mode == 'b' && !theresb)
  63     {
  64         mode++;
  65     }
  66
  67     if (*mode != '\0')
  68     {
  69         errno = EINVAL;
  70         return -1;
  71     }
  72
  73     return ret;
  74 }
  75
  76 int __oflags2sflags(int omode)
  77 {
  78     int ret;
  79
  80     switch (omode & O_ACCMODE)
  81     {
  82         case O_RDONLY:
  83             ret = _STDIO_READ;
  84             break;
  85
  86         case O_WRONLY:
  87             ret = _STDIO_WRITE;
  88             break;
  89
  90         case O_RDWR:
  91             ret = _STDIO_READ | _STDIO_WRITE;
  92             break;
  93
  94         default:
  95             errno = EINVAL;
  96             return 0;
  97     }
  98
  99     if (omode & O_APPEND)
 100         ret |= _STDIO_APPEND;
 101
 102     return ret;
 103 }
 104
 105 int __init_stdio(void)
 106 {
 107     NEWLIST(&__stdio_files);
 108
 109     if
 110     (
 111         !(stdin  = fdopen(STDIN_FILENO, NULL))  ||
 112         !(stdout = fdopen(STDOUT_FILENO, NULL)) ||
 113         !(stderr = fdopen(STDERR_FILENO, NULL))
 114     )
 115     {
 116         SetIoErr(ERROR_NO_FREE_STORE);
 117         return 0;
 118     }
 119
 120     return 1;
 121 }
 122
 123 ADD2INIT(__init_stdio, 5);
 124
 125