Actually implement syslinux_ipappend_strings()

Actually implement the library function syslinux_ipappend_strings(),
which had been in the header files but not in the actual library.

diff --git a/com32/lib/Makefile b/com32/lib/Makefile
index cb33024..def1729 100644 (file)
--- a/com32/lib/Makefile
+++ b/com32/lib/Makefile
@@ -67,6 +67,7 @@ LIBOBJS = \
        \
        syslinux/idle.o syslinux/reboot.o                               \
        syslinux/features.o syslinux/config.o syslinux/serial.o         \
+       syslinux/ipappend.o                                             \
        \
        syslinux/addlist.o syslinux/freelist.o syslinux/memmap.o        \
        syslinux/movebits.o syslinux/shuffle.o syslinux/shuffle_pm.o    \

diff --git a/com32/lib/syslinux/ipappend.c b/com32/lib/syslinux/ipappend.c
new file mode 100644 (file)
index 0000000..1d57e00
--- /dev/null
+++ b/com32/lib/syslinux/ipappend.c
@@ -0,0 +1,58 @@
+/* ----------------------------------------------------------------------- *
+ *
+ *   Copyright 2008 H. Peter Anvin - All Rights Reserved
+ *
+ *   Permission is hereby granted, free of charge, to any person
+ *   obtaining a copy of this software and associated documentation
+ *   files (the "Software"), to deal in the Software without
+ *   restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or
+ *   sell copies of the Software, and to permit persons to whom
+ *   the Software is furnished to do so, subject to the following
+ *   conditions:
+ *
+ *   The above copyright notice and this permission notice shall
+ *   be included in all copies or substantial portions of the Software.
+ *
+ *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *   OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * syslinux/ipappend.c
+ *
+ * Get ipappend strings
+ */
+
+#include <syslinux/config.h>
+#include <klibc/compiler.h>
+#include <com32.h>
+
+struct syslinux_ipappend_strings __syslinux_ipappend_strings;
+static const char *syslinux_ipappend_string_list[32];
+
+void __constructor __syslinux_get_ipappend_strings(void)
+{
+  static com32sys_t reg;
+  int i;
+
+  reg.eax.w[0] = 0x000f;
+  __intcall(0x22, &reg, &reg);
+
+  if (!(reg.eflags.l & EFLAGS_CF)) {
+    __syslinux_ipappend_strings.count = reg.ecx.w[0];
+    __syslinux_ipappend_strings.ptr =
+      syslinux_ipappend_string_list;
+    for (i = 0; i < reg.ecx.w[0]; i++) {
+      syslinux_ipappend_string_list[i] =
+       MK_PTR(reg.es, *(uint16_t *)MK_PTR(reg.es, reg.ebx.w[0]+i*2));
+    }
+  }
+}