diff options
Diffstat (limited to 'contrib/auto-default/main.c.patch')
| -rw-r--r-- | contrib/auto-default/main.c.patch | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/contrib/auto-default/main.c.patch b/contrib/auto-default/main.c.patch new file mode 100644 index 000000000..e707b63a3 --- /dev/null +++ b/contrib/auto-default/main.c.patch @@ -0,0 +1,55 @@ +--- main.c Mon Nov 5 18:58:30 2001 ++++ main.c.new Thu Nov 15 01:45:12 2001 +@@ -149,21 +151,49 @@ + static unsigned short ipchksum(unsigned short *ip, int len); + static unsigned short udpchksum(struct iphdr *packet); + ++ ++#if defined(ASK_BOOT) && ASK_BOOT > 0 && (ANS_DEFAULT == ANS_AUTO) ++/* ++ * Read Installed Hard Disk Count from BIOS memory at 0:0475 ++ */ ++static int hdsk_cnt(void) ++{ ++ int retv; ++ __asm__ __volatile__( ++ "xorw %%ax,%%ax\n\t" ++ "movb 0x475,%%al\n" ++ : "=a" (retv) ++ : /* no inputs */ ++ : "ax", "cc", "memory" ++ ); ++ return(retv); ++} ++#endif /* ASK_BOOT && ANS_AUTO */ ++ ++ + static inline void ask_boot(void) + { + #if defined(ASK_BOOT) && ASK_BOOT > 0 + while(1) { +- int c; ++ int c, deflt; + unsigned long time; ++#if defined(ASK_BOOT) && ASK_BOOT > 0 && (ANS_DEFAULT == ANS_AUTO) ++ if (hdsk_cnt() != 0) ++ deflt = ANS_LOCAL; ++ else ++ deflt = ANS_NETWORK; ++#else ++ deflt = ANS_DEFAULT; ++#endif + printf(ASK_PROMPT); + for (time = currticks() + ASK_BOOT*TICKS_PER_SEC; !iskey(); ) + if (currticks() > time) { +- c = ANS_DEFAULT; ++ c = deflt; + goto done; + } + c = getchar(); + if ((c >= 'a') && (c <= 'z')) c &= 0x5F; +- if (c == '\n') c = ANS_DEFAULT; ++ if (c == '\n') c = deflt; + done: + if ((c >= ' ') && (c <= '~')) putchar(c); + putchar('\n'); |