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Diff for /embedaddon/libiconv/srclib/safe-read.c between versions 1.1 and 1.1.1.2

version 1.1, 2012/05/29 09:29:42 version 1.1.1.2, 2021/03/17 13:38:46
Line 1 Line 1
 /* An interface to read and write that retries after interrupts.  /* An interface to read and write that retries after interrupts.
   
   Copyright (C) 1993-1994, 1998, 2002-2006, 2009-2011 Free Software   Copyright (C) 1993-1994, 1998, 2002-2006, 2009-2019 Free Software
    Foundation, Inc.     Foundation, Inc.
   
    This program is free software: you can redistribute it and/or modify     This program is free software: you can redistribute it and/or modify
Line 14 Line 14
    GNU General Public License for more details.     GNU General Public License for more details.
   
    You should have received a copy of the GNU General Public License     You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
   
 #include <config.h>  #include <config.h>
   
Line 37 Line 37
 # define IS_EINTR(x) 0  # define IS_EINTR(x) 0
 #endif  #endif
   
#include <limits.h>#include "sys-limits.h"
   
 #ifdef SAFE_WRITE  #ifdef SAFE_WRITE
 # define safe_rw safe_write  # define safe_rw safe_write
Line 55 Line 55
 size_t  size_t
 safe_rw (int fd, void const *buf, size_t count)  safe_rw (int fd, void const *buf, size_t count)
 {  {
   /* Work around a bug in Tru64 5.1.  Attempting to read more than  
      INT_MAX bytes fails with errno == EINVAL.  See  
      <http://lists.gnu.org/archive/html/bug-gnu-utils/2002-04/msg00010.html>.  
      When decreasing COUNT, keep it block-aligned.  */  
   enum { BUGGY_READ_MAXIMUM = INT_MAX & ~8191 };  
   
   for (;;)    for (;;)
     {      {
       ssize_t result = rw (fd, buf, count);        ssize_t result = rw (fd, buf, count);
Line 69  safe_rw (int fd, void const *buf, size_t count) Line 63  safe_rw (int fd, void const *buf, size_t count)
         return result;          return result;
       else if (IS_EINTR (errno))        else if (IS_EINTR (errno))
         continue;          continue;
      else if (errno == EINVAL && BUGGY_READ_MAXIMUM < count)      else if (errno == EINVAL && SYS_BUFSIZE_MAX < count)
        count = BUGGY_READ_MAXIMUM;        count = SYS_BUFSIZE_MAX;
       else        else
         return result;          return result;
     }      }
Removed from v.1.1  
changed lines
  Added in v.1.1.1.2

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