int sendfile(int sockfd,int fd)
{
char buf[LEN];
int nread,count=0;
int size=file_size_fd(fd);
while((nread=Read(fd,buf,sizeof(buf)))>0)
{
Writen(sockfd,buf,nread);
count+=nread;
progress_bar((count/size)*100);
}
return 0;
}
// WTF
int main(int argc, char **argv)
{
ut64 i, c, src;
ut64 offset = 0;
ut64 from = 1,
to = INT_MAX;
ut64 sa;
if (argc==2)
if (!strcmp(argv[1],"-V")) {
printf("%s\n", VERSION);
return 0;
}
if (argc<3)
return show_usage();
/* parse arguments */
while ((c = getopt(argc, argv, "qa:d:hves:f:t:r:X:b:")) != -1) {
switch( c ) {
case 'q':
quite = 1;
break;
case 'a':
if (!strcmp(optarg, "intel"))
arch = ARCH_X86;
else
if (!strcmp(optarg, "x86"))
arch = ARCH_X86;
else
if (!strcmp(optarg, "arm"))
arch = ARCH_ARM;
else
if (!strcmp(optarg, "ppc")) {
arch = ARCH_PPC;
} else {
printf("arm ppc x86\n");
return 1;
}
break;
case 'b':
base = get_value32(optarg);
break;
case 'd':
delta = get_value32(optarg);
break;
case 'X':
xylum = get_value32(optarg);
break;
case 'e':
endian = 1;
break;
case 'r':
range = get_value32(optarg);
if (range<0) range = -range;
break;
case 'v':
verbose = 1;
break;
case 'f':
from = get_value32(optarg);
break;
case 't':
to = get_value32(optarg);
break;
case 's':
size = get_value32(optarg);
break;
case 'h':
return show_usage();
}
}
if (optind+2 != argc) {
fprintf(stderr, "Plz. gimmie a file and offset.\n");
return 1;
}
/* openning stuff */
src = open(argv[optind], O_RDONLY);
if (src == -1) {
fprintf(stderr, "Cannot open file source %s\n", argv[optind]);
return -1;
}
offset = get_value32(argv[optind+1]);
if (offset >= base)
offset -= base;
sa = file_size_fd(src) - size;
#if __UNIX__
ma = mmap(NULL, sa, PROT_READ, MAP_SHARED, src, 0);
if (sa < 0x50) {
fprintf(stderr, "Minimum length is 0x50 bytes.\n");
return 1;
}
#elif __WINDOWS__
fprintf(stderr, "Not yet implemented\n");
#else
fprintf(stderr, "No MMAP for this platform? report it!\n");
#endif
if (!ma) {
perror("Error mmaping");
fprintf(stderr, "cannot open %s\n", argv[optind]);
return 1;
}
/* configure environment */
sysendian = get_system_endian();
while( set_arch_settings() );
if (endian == -1)
endian = 0;
/* loopize looking for xrefs */
for(i=from; i<sa && i<to; i++) {
ut32 value = offset - i + delta;
ut32 ovalue = value;
ut32 tmpvalue = 0;
unsigned char *buf = (unsigned char *)&value;
if (range!=0) {
if (value<0 && -value>range)
continue;
else
if (value>0 && value>range)
continue;
}
if (verbose)
printf("0x%08"PFMT64x" try %02x %02x %02x %02x (0x%08"PFMT64x") - %"PFMT64d"\n",
(ut64)i, buf[0], buf[1], buf[2], buf[3], (ut64) base+value, (ut64) (base+value));
if (xylum && i == xylum) {
printf("# offset: 0x%08"PFMT64x"\n", (ut64)i);
printf("# delta: %"PFMT64d"\n", (ut64)delta);
printf("# size: %"PFMT64d"\n", (ut64)size);
printf("# value: %"PFMT64d"\n", (ut64)value);
printf("# bytes: %02x %02x %02x %02x (0x%08"PFMT64x") - %"PFMT64d"\n",
buf[0], buf[1], buf[2], buf[3], (ut64)value, (ut64)value);
tmpvalue = ma[i+gamme];
printf("# found: %02x %02x %02x %02x\n",
ma[i+gamme+0], ma[i+gamme+1],
ma[i+gamme+2], ma[i+gamme+3]);
}
switch(arch) {
case ARCH_ARM:
value = (value-8)/4;
break;
case ARCH_X86:
value-=5;
break;
default:
break;
}
// force little endian //
if (sysendian) {
unsigned char tmp;
tmp = buf[0]; buf[0]= buf[3]; buf[3] = tmp;
tmp = buf[1]; buf[1]= buf[2]; buf[2] = tmp;
}
// target architecture endian //
if (endian) {
unsigned char tmp;
tmp = buf[0]; buf[0] = buf[3]; buf[3] = tmp;
tmp = buf[1]; buf[1] = buf[2]; buf[2] = tmp;
}
if (arch==ARCH_ARM) {
buf[3] = buf[2]; buf[2] = buf[1]; buf[1] = buf[0];
}
if (xylum && ovalue == xylum) {
printf("# buf: %02x %02x %02x %02x (+%"PFMT64d")\n",
buf[0], buf[1], buf[2], buf[3], (ut64)(4-size));
printf("# map: %02x %02x %02x \n",
ma[i+gamme], ma[i+1+gamme], ma[i+2+gamme]);
printf("# cmp: %02x %02x %02x\n", ma[i], ma[i+1], ma[i+2]);
}
if (xylum && i == xylum) {
printf("# a: %02x %02x %02x %02x\n",
ma[i+gamme+0], ma[i+gamme+1],
ma[i+gamme+2], ma[i+gamme+3]);
printf("# b: %02x %02x %02x %02x\n",
buf[0], buf[1], buf[2], buf[3]);
}
if (memcmp((unsigned char *)ma+i+gamme, (unsigned char *)buf+(4-size), size) == 0) {
if (quite)
printf("0x%08"PFMT64x"\n", (ut64)i);
else
printf("match value 0x%08"PFMT64x" (%02x%02x%02x) at offset 0x%08"PFMT64x"\n",
(ut64)ovalue,
buf[0+(4-size)], buf[1+(4-size)], buf[2+(4-size)],
(ut64)((ut32)i)+((gamme<0)?-1:0));
found++;
}
}
if (found == 0 && !quite)
puts("no matches found.");
return 0;
}
