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Print "(null)" instead of crashing for null strings. Null names are

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often generated for stack traces.  Now inspection of unmapped addresses
no longer panics the system.
This commit is contained in:
Bruce Evans 1994-10-30 20:55:44 +00:00
parent 14b1ec3ac6
commit d2984da171
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=4016
1 changed files with 3 additions and 1 deletions
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4
sys/ddb/db_output.c
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@ -23,7 +23,7 @@
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*
* $Id: db_output.c,v 1.8 1994/08/27 16:14:09 davidg Exp $
* $Id: db_output.c,v 1.9 1994/09/27 03:34:54 phk Exp $
*/
/*
@ -282,6 +282,8 @@ reswitch: switch (ch = *(u_char *)fmt++) {
break;
case 's':
p = va_arg(ap, char *);
if (p == NULL)
p = "(null)";
width -= strlen (p);
if (!ladjust && width > 0)
while (width--)