Libc-997.1.1.tar.gz

[apple/libc.git] / stdio / FreeBSD / xprintf_hexdump.c

diff --git a/stdio/FreeBSD/xprintf_hexdump.c b/stdio/FreeBSD/xprintf_hexdump.c
new file mode 100644 (file)
index 0000000..0e90ad7
--- /dev/null
+++ b/stdio/FreeBSD/xprintf_hexdump.c
@@ -0,0 +1,98 @@
+/*-
+ * Copyright (c) 2005 Poul-Henning Kamp
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * 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: src/lib/libc/stdio/xprintf_hexdump.c,v 1.1 2005/12/16 18:56:38 phk Exp $
+ */
+
+#include <namespace.h>
+#include <stdio.h>
+#include <wchar.h>
+#include <stdint.h>
+#include <assert.h>
+#include <sys/time.h>
+#include "printf.h"
+#include "xprintf_private.h"
+
+__private_extern__ int
+__printf_arginfo_hexdump(const struct printf_info *pi, size_t n, int *argt)
+{
+
+       assert(n >= 2);
+       argt[0] = PA_POINTER;
+       argt[1] = PA_INT;
+       return (2);
+}
+
+__private_extern__ int
+__printf_render_hexdump(struct __printf_io *io, const struct printf_info *pi, const void *const *arg)
+{
+       unsigned char *p;
+       unsigned u, l, j, a;
+       char buf[100], *q;
+       int ret;
+
+       if (pi->width > 0 && pi->width < 16)
+               l = pi->width;
+       else
+               l = 16;
+       p = *((unsigned char **)arg[0]);
+       u = *((unsigned *)arg[1]);
+
+       ret = 0;
+       a = 0;
+       while (u > 0) {
+               q = buf;
+               if (pi->showsign)
+                       q += sprintf(q, " %04x", a);
+               for (j = 0; j < l && j < u; j++)
+                       q += sprintf(q, " %02x", p[j]);
+               if (pi->alt) {
+                       for (; j < l; j++)
+                               q += sprintf(q, "   ");
+                       q += sprintf(q, "  |");
+                       for (j = 0; j < l && j < u; j++) {
+                               if (p[j] < ' ' || p[j] > '~')
+                                       *q++ = '.';
+                               else
+                                       *q++ = p[j];
+                       }
+                       for (; j < l; j++)
+                               *q++ = ' ';
+                       *q++ = '|';
+               }
+               if (l < u)
+                       j = l;
+               else
+                       j = u;
+               p += j;
+               u -= j;
+               a += j;
+               if (u > 0)
+                       *q++ = '\n';
+               ret += __printf_puts(io, buf + 1, q - (buf + 1));
+               __printf_flush(io);
+       }
+       return (ret);
+}