diff options
Diffstat (limited to 'com32/lib/syslinux/pxe_dns.c')
-rw-r--r-- | com32/lib/syslinux/pxe_dns.c | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/com32/lib/syslinux/pxe_dns.c b/com32/lib/syslinux/pxe_dns.c deleted file mode 100644 index 6620396f..00000000 --- a/com32/lib/syslinux/pxe_dns.c +++ /dev/null @@ -1,75 +0,0 @@ -/* ----------------------------------------------------------------------- * - * - * Copyright 2010 Intel Corporation; author: H. Peter Anvin - * - * 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. - * - * ----------------------------------------------------------------------- */ - -/* - * pxe_dns.c - * - * Resolve a hostname via DNS - */ - -#include <stdio.h> -#include <stdlib.h> -#include <stdint.h> -#include <string.h> -#include <com32.h> - -#include <syslinux/pxe.h> - -/* Returns the status code from PXE (0 on success), - or -1 on invocation failure */ -uint32_t pxe_dns(const char *hostname) -{ - com32sys_t regs; - union { - unsigned char b[4]; - uint32_t ip; - } q; - char *lm_hostname; - - /* Is this a dot-quad? */ - if (sscanf(hostname, "%hhu.%hhu.%hhu.%hhu", - &q.b[0], &q.b[1], &q.b[2], &q.b[3]) == 4) - return q.ip; - - lm_hostname = lstrdup(hostname); - if (!lm_hostname) - return 0; - - memset(®s, 0, sizeof regs); - regs.eax.w[0] = 0x0010; - regs.es = SEG(lm_hostname); - /* regs.ebx.w[0] = OFFS(lm_hostname); */ - - __intcall(0x22, ®s, ®s); - - lfree(lm_hostname); - - if (regs.eflags.l & EFLAGS_CF) - return 0; - - return regs.eax.l; -} |