diff options
Diffstat (limited to 'util/miscutil.c')
| -rw-r--r-- | util/miscutil.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/util/miscutil.c b/util/miscutil.c index 9fecf4488..18fff2c08 100644 --- a/util/miscutil.c +++ b/util/miscutil.c @@ -21,6 +21,7 @@ #include <config.h> #include <stdio.h> #include <time.h> +#include <ctype.h> #include "types.h" #include "util.h" @@ -31,3 +32,23 @@ make_timestamp() } +/**************** + * Print a string to FP, but filter all control characters out. + */ +void +print_string( FILE *fp, byte *p, size_t n ) +{ + for( ; n; n--, p++ ) + if( iscntrl( *p ) ) { + putc('\\', fp); + if( *p == '\n' ) + putc('n', fp); + else if( !*p ) + putc('0', fp); + else + printf("x%02x", *p ); + } + else + putc(*p, fp); +} + |