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/* Copyright (C) 1996 Robert de Bath <robert@debath.thenet.co.uk>

 * This file is part of the Linux-8086 C library and is distributed

 * under the GNU Library General Public License.

 */

#include <string.h>

char **__sys_errlist =0;

int __sys_nerr = 0;

char *

strerror(err)

int err;

{

   int fd;

   static char retbuf[80];

   char inbuf[256];

   int cc;

   int bufoff = 0;

   if( __sys_nerr )

   {

      if( err < 0 || err >= __sys_nerr ) goto unknown;

      return __sys_errlist[err];

   }

   if( err <= 0 ) goto unknown;  /* NB the <= allows comments in the file */

   fd = open("/usr/lib/liberror.txt", 0);

   if (fd < 0) fd = open("/lib/liberror.txt", 0);

   if( fd < 0 ) goto unknown;

   while( (cc=read(fd, inbuf, sizeof(inbuf))) > 0 )

   {

      int i;

      for(i=0; i<cc; i++)

      {

         if( inbuf[i] == '\n' )

         {

            retbuf[bufoff] = '\0';

            if( err == atoi(retbuf) )

            {

               char * p = strchr(retbuf, ' ');

               if( p == 0 ) goto unknown;

               while(*p == ' ') p++;

               close(fd);

               return p;

            }

            bufoff = 0;

         }

         else if( bufoff < sizeof(retbuf)-1 )

            retbuf[bufoff++] = inbuf[i];

      }

   }

unknown:;

   if( fd >= 0 ) close(fd);

   strcpy(retbuf, "Unknown error ");

   strcpy(retbuf+14, itoa(err));

   return retbuf;

}