Import Dev86-0.0.5.tar.gzv0.0.5

1 files changed, 57 insertions, 0 deletions

diff --git a/libc/error/error.c b/libc/error/error.c
new file mode 100644
index 0000000..3695719
--- /dev/null
+++ b/libc/error/error.c
@@ -0,0 +1,57 @@
+/* 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 ) 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;
+}