bool replace_certain_rels(char *libpath, char* fucation_name[], u4 newFun_ptr[], int size) {
LOGV("get into replace_all_rels");
FILE *m = NULL;
char maps[80];
char line[200];
char soaddrs[20];
char soaddr[10];
char soname[60];
char prop[10];
long soaddval;
long base;
int result = false;
memset(maps, 0, sizeof(maps));
memset(soaddrs, 0, sizeof(soaddrs));
memset(soaddr, 0, sizeof(soaddr));
sprintf(maps, "/proc/self/maps", 1);
m = fopen(maps, "r");
if (!m) {
LOGE("open maps error");
return result;
}
while (fgets(line, sizeof(line), m)) {
int found = 0;
struct elf_info einfo;
long tmpaddr = 0;
if (strstr(line, ".so") == NULL)
continue;
if (strstr(line, "r-xp") == NULL)
continue;
if (strstr(line, libpath) != NULL) {
found = 1;
}
if (!found) {
continue;
}
sscanf(line, "%s %s %*s %*s %*s %s", soaddrs, prop, soname);
sscanf(soaddrs, "%[^-]", soaddr);
LOGV("#### %s %s %s\n", soaddr, prop, soname);
base = strtoul(soaddr, NULL, 16);
puint(base);
get_elf_info(1, base, &einfo);
int i =0;
for(i=0; i<size; i++) {
tmpaddr = find_sym_in_rel(&einfo, fucation_name[i]);
if (tmpaddr != 0) {
memcpy((void*)tmpaddr, (void*)newFun_ptr[i], 4);
LOGV(" the function %s is hook sucessfully",fucation_name[i]);
} else {
return result;
LOGV(" the function %s is hook fail",fucation_name[i]);
}
}
result = true;
return result;
}
}
static int
p_seprint(Msg *m)
{
int i, n, code;
uint8_t *o, *ps;
char *p, *e;
char msg[64];
/* no next proto */
m->pr = nil;
p = m->p;
e = m->e;
ps = m->ps;
while(ps < m->pe){
code = *ps++;
if(code == 255)
break;
if(code == 0)
continue;
/* ignore anything that's too long */
n = *ps++;
o = ps;
ps += n;
if(ps > m->pe)
break;
switch(code){
case ODipaddr: /* requested ip address */
p = pserver(p, e, "ipaddr", o, n);
break;
case ODlease: /* requested lease time */
p = pint(p, e, "lease", o, n);
break;
case ODtype:
p = ptype(p, e, *o);
break;
case ODserverid:
p = pserver(p, e, "serverid", o, n);
break;
case ODmessage:
p = pstring(p, e, "message", o, n);
break;
case ODmaxmsg:
p = puint(p, e, "maxmsg", o, n);
break;
case ODclientid:
p = phex(p, e, "clientid", o, n);
break;
case ODparams:
p = seprint(p, e, " requested=(");
for(i = 0; i < n; i++){
if(i != 0)
p = seprint(p, e, " ");
p = seprint(p, e, "%ud", o[i]);
}
p = seprint(p, e, ")");
break;
case ODvendorclass:
p = pstring(p, e, "vendorclass", o, n);
break;
case OBmask:
p = pserver(p, e, "mask", o, n);
break;
case OBtimeoff:
p = pint(p, e, "timeoff", o, n);
break;
case OBrouter:
p = pserver(p, e, "router", o, n);
break;
case OBtimeserver:
p = pserver(p, e, "timesrv", o, n);
break;
case OBnameserver:
p = pserver(p, e, "namesrv", o, n);
break;
case OBdnserver:
p = pserver(p, e, "dnssrv", o, n);
break;
case OBlogserver:
p = pserver(p, e, "logsrv", o, n);
break;
case OBcookieserver:
p = pserver(p, e, "cookiesrv", o, n);
break;
case OBlprserver:
p = pserver(p, e, "lprsrv", o, n);
break;
case OBimpressserver:
p = pserver(p, e, "impresssrv", o, n);
break;
case OBrlserver:
p = pserver(p, e, "rlsrv", o, n);
break;
case OBhostname:
p = pstring(p, e, "hostname", o, n);
break;
case OBbflen:
break;
case OBdumpfile:
p = pstring(p, e, "dumpfile", o, n);
break;
case OBdomainname:
p = pstring(p, e, "domname", o, n);
break;
case OBswapserver:
p = pserver(p, e, "swapsrv", o, n);
break;
case OBrootpath:
p = pstring(p, e, "rootpath", o, n);
break;
case OBextpath:
p = pstring(p, e, "extpath", o, n);
break;
case OBipforward:
p = phex(p, e, "ipforward", o, n);
break;
case OBnonlocal:
p = phex(p, e, "nonlocal", o, n);
break;
case OBpolicyfilter:
p = phex(p, e, "policyfilter", o, n);
break;
case OBmaxdatagram:
p = phex(p, e, "maxdatagram", o, n);
break;
case OBttl:
p = puint(p, e, "ttl", o, n);
break;
case OBpathtimeout:
p = puint(p, e, "pathtimeout", o, n);
break;
case OBpathplateau:
p = phex(p, e, "pathplateau", o, n);
break;
case OBmtu:
p = puint(p, e, "mtu", o, n);
break;
case OBsubnetslocal:
p = pserver(p, e, "subnet", o, n);
break;
case OBbaddr:
p = pserver(p, e, "baddr", o, n);
break;
case OBdiscovermask:
p = pserver(p, e, "discovermsak", o, n);
break;
case OBsupplymask:
p = pserver(p, e, "rousupplymaskter", o, n);
break;
case OBdiscoverrouter:
p = pserver(p, e, "discoverrouter", o, n);
break;
case OBrsserver:
p = pserver(p, e, "rsrouter", o, n);
break;
case OBstaticroutes:
p = phex(p, e, "staticroutes", o, n);
break;
case OBtrailerencap:
p = phex(p, e, "trailerencap", o, n);
break;
case OBarptimeout:
p = puint(p, e, "arptimeout", o, n);
break;
case OBetherencap:
p = phex(p, e, "etherencap", o, n);
break;
case OBtcpttl:
p = puint(p, e, "tcpttl", o, n);
break;
case OBtcpka:
p = puint(p, e, "tcpka", o, n);
break;
case OBtcpkag:
p = phex(p, e, "tcpkag", o, n);
break;
case OBnisdomain:
p = pstring(p, e, "nisdomain", o, n);
break;
case OBniserver:
p = pserver(p, e, "nisrv", o, n);
break;
case OBntpserver:
p = pserver(p, e, "ntpsrv", o, n);
break;
case OBvendorinfo:
p = phex(p, e, "vendorinfo", o, n);
break;
case OBnetbiosns:
p = pserver(p, e, "biosns", o, n);
break;
case OBnetbiosdds:
p = phex(p, e, "biosdds", o, n);
break;
case OBnetbiostype:
p = phex(p, e, "biostype", o, n);
break;
case OBnetbiosscope:
p = phex(p, e, "biosscope", o, n);
break;
case OBxfontserver:
p = pserver(p, e, "fontsrv", o, n);
break;
case OBxdispmanager:
p = pserver(p, e, "xdispmgr", o, n);
break;
case OBnisplusdomain:
p = pstring(p, e, "nisplusdomain", o, n);
break;
case OBnisplusserver:
p = pserver(p, e, "nisplussrv", o, n);
break;
case OBhomeagent:
p = pserver(p, e, "homeagent", o, n);
break;
case OBsmtpserver:
p = pserver(p, e, "smtpsrv", o, n);
break;
case OBpop3server:
p = pserver(p, e, "pop3srv", o, n);
break;
case OBnntpserver:
p = pserver(p, e, "ntpsrv", o, n);
break;
case OBwwwserver:
p = pserver(p, e, "wwwsrv", o, n);
break;
case OBfingerserver:
p = pserver(p, e, "fingersrv", o, n);
break;
case OBircserver:
p = pserver(p, e, "ircsrv", o, n);
break;
case OBstserver:
p = pserver(p, e, "stsrv", o, n);
break;
case OBstdaserver:
p = pserver(p, e, "stdasrv", o, n);
break;
case OBend:
goto out;
default:
snprint(msg, sizeof msg, " T%ud", code);
p = phex(p, e, msg, o, n);
break;
}
if(*ps != OBend)
p = seprint(p, e, " ");
}
out:
m->p = p;
m->ps = ps;
return 0;
}
