diff options
Diffstat (limited to 'lib/libc/gen/vis.c')
| -rw-r--r-- | lib/libc/gen/vis.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/lib/libc/gen/vis.c b/lib/libc/gen/vis.c index 61aa836..cc3501d 100644 --- a/lib/libc/gen/vis.c +++ b/lib/libc/gen/vis.c @@ -29,6 +29,8 @@ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. + * + * $FreeBSD$ */ #if defined(LIBC_SCCS) && !defined(lint) @@ -52,6 +54,21 @@ vis(dst, c, flag, nextc) register int flag; { c = (unsigned char)c; + + if (flag & VIS_HTTPSTYLE) { + if (!((c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z') + || (c >= 'a' && c <= 'z') || c == '$' || c == '-' + || c == '_' || c == '\'' || c == '+' || c == '!' || + c == '(' || c == ')' || c == ',' || c == '"' || + c == ';' || c == '/' || c == '?' || c == ':' || + c == '@' || c == '&' || c == '=' || c == '+')) { + *dst++ = '%'; + snprintf(dst, 4, (c < 16 ? "0%X" : "%X"), c); + dst += 2; + goto done; + } + } + if (isgraph(c) || ((flag & VIS_SP) == 0 && c == ' ') || ((flag & VIS_TAB) == 0 && c == '\t') || |
