void test_diff_binary__delta_append(void)
{
git_index *index;
git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
const char *expected =
"diff --git a/untimely.txt b/untimely.txt\n" \
"index 9a69d960ae94b060f56c2a8702545e2bb1abb935..1111d4f11f4b35bf6759e0fb714fe09731ef0840 100644\n" \
"GIT binary patch\n" \
"delta 32\n" \
"nc%1vf+QYWt3zLL@hC)e3Vu?a>QDRl4f_G*?PG(-ZA}<#J$+QbW\n" \
"\n" \
"delta 7\n" \
"Oc%18D`@*{63ljhg(E~C7\n" \
"\n";
opts.flags = GIT_DIFF_SHOW_BINARY | GIT_DIFF_FORCE_BINARY;
opts.id_abbrev = GIT_OID_HEXSZ;
repo = cl_git_sandbox_init("renames");
cl_git_pass(git_repository_index(&index, repo));
cl_git_append2file("renames/untimely.txt", "Oh that crazy Kipling!\r\n");
cl_git_pass(git_index_add_bypath(index, "untimely.txt"));
cl_git_pass(git_index_write(index));
test_patch(
"19dd32dfb1520a64e5bbaae8dce6ef423dfa2f13",
NULL,
&opts,
expected);
git_index_free(index);
}
void test_diff_binary__add(void)
{
git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
const char *expected =
"diff --git a/binary.bin b/binary.bin\n" \
"new file mode 100644\n" \
"index 0000000000000000000000000000000000000000..bd474b2519cc15eab801ff851cc7d50f0dee49a1\n" \
"GIT binary patch\n" \
"literal 3\n" \
"Kc${Nk-~s>u4FC%O\n"
"\n" \
"literal 0\n" \
"Hc$@<O00001\n" \
"\n";
opts.flags = GIT_DIFF_SHOW_BINARY;
opts.id_abbrev = GIT_OID_HEXSZ;
repo = cl_git_sandbox_init("diff_format_email");
test_patch(
"873806f6f27e631eb0b23e4b56bea2bfac14a373",
"897d3af16ca9e420cd071b1c4541bd2b91d04c8c",
&opts,
expected);
}
void test_diff_binary__modify_normal(void)
{
git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
const char *expected =
"diff --git a/binary.bin b/binary.bin\n" \
"index bd474b2..9ac35ff 100644\n" \
"Binary files a/binary.bin and b/binary.bin differ\n";
repo = cl_git_sandbox_init("diff_format_email");
test_patch(
"897d3af16ca9e420cd071b1c4541bd2b91d04c8c",
"8d7523f6fcb2404257889abe0d96f093d9f524f9",
&opts,
expected);
}
void test_diff_binary__add_normal(void)
{
git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
const char *expected =
"diff --git a/binary.bin b/binary.bin\n" \
"new file mode 100644\n" \
"index 0000000..bd474b2\n" \
"Binary files /dev/null and b/binary.bin differ\n";
repo = cl_git_sandbox_init("diff_format_email");
test_patch(
"873806f6f27e631eb0b23e4b56bea2bfac14a373",
"897d3af16ca9e420cd071b1c4541bd2b91d04c8c",
&opts,
expected);
}
void test_diff_binary__delta(void)
{
git_index *index;
git_buf contents = GIT_BUF_INIT;
size_t i;
git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
const char *expected =
"diff --git a/songof7cities.txt b/songof7cities.txt\n" \
"index 4210ffd5c390b21dd5483375e75288dea9ede512..cc84ec183351c9944ed90a619ca08911924055b5 100644\n" \
"GIT binary patch\n" \
"delta 198\n" \
"zc$}LmI8{(0BqLQJI6p64AwNwaIJGP_Pa)Ye#M3o+qJ$<Jl;sX*mF<MGCYv&*L7AHu\n" \
"zGA1*^gt?gYVN82wTbPO_W)+x<&1+cP;HrPHR>PQ;Y(X&QMK*C5^Br3bjG4d=XI^5@\n" \
"JfH567LIG)KJdFSV\n" \
"\n" \
"delta 198\n" \
"zc$}LmI8{(0BqLQJI6p64AwNwaIJGP_Pr*5}Br~;mqJ$<Jl;sX*mF<MGCYv&*L7AHu\n" \
"zGA1*^gt?gYVN82wTbPO_W)+x<&1+cP;HrPHR>PQ;Y(X&QMK*C5^Br3bjG4d=XI^5@\n" \
"JfH567LIF3FM2!Fd\n" \
"\n";
opts.flags = GIT_DIFF_SHOW_BINARY | GIT_DIFF_FORCE_BINARY;
opts.id_abbrev = GIT_OID_HEXSZ;
repo = cl_git_sandbox_init("renames");
cl_git_pass(git_repository_index(&index, repo));
cl_git_pass(git_futils_readbuffer(&contents, "renames/songof7cities.txt"));
for (i = 0; i < contents.size - 6; i++) {
if (strncmp(&contents.ptr[i], "Cities", 6) == 0)
memcpy(&contents.ptr[i], "cITIES", 6);
}
cl_git_rewritefile("renames/songof7cities.txt", contents.ptr);
cl_git_pass(git_index_add_bypath(index, "songof7cities.txt"));
cl_git_pass(git_index_write(index));
test_patch(
"19dd32dfb1520a64e5bbaae8dce6ef423dfa2f13",
NULL,
&opts,
expected);
git_index_free(index);
git_buf_dispose(&contents);
}
void test_diff_binary__modify(void)
{
git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
const char *expected =
"diff --git a/binary.bin b/binary.bin\n" \
"index bd474b2519cc15eab801ff851cc7d50f0dee49a1..9ac35ff15cd8864aeafd889e4826a3150f0b06c4 100644\n" \
"GIT binary patch\n" \
"literal 5\n" \
"Mc${NkU}WL~000&M4gdfE\n" \
"\n" \
"literal 3\n" \
"Kc${Nk-~s>u4FC%O\n" \
"\n";
opts.flags = GIT_DIFF_SHOW_BINARY;
repo = cl_git_sandbox_init("diff_format_email");
test_patch(
"897d3af16ca9e420cd071b1c4541bd2b91d04c8c",
"8d7523f6fcb2404257889abe0d96f093d9f524f9",
&opts,
expected);
}
int wiz_mmuhack(int mem_fd)
{
FILE *kallsyms_file;
int uname_offset;
unsigned int pagetable_offset;
char kallsyms_line[128];
char uname_backup[16];
int *uname_backup_int = (int *)uname_backup;
int test_value;
int failure = 0;
kallsyms_file = fopen("/proc/kallsyms", "rb");
if(kallsyms_file == NULL)
{
printf("Could not find /proc/kallsyms, trying /proc/ksyms.\n");
kallsyms_file = fopen("/proc/ksyms", "rb");
if(kallsyms_file == NULL)
{
printf("Could not find /proc/ksyms, exiting.\n");
return -1;
}
}
while(1)
{
if(fgets(kallsyms_line, 128, kallsyms_file))
{
if(!strncmp(kallsyms_line + 11, "sys_newuname", 12))
{
uname_offset = strtoul(kallsyms_line, NULL, 16);
break;
}
}
else
{
fclose(kallsyms_file);
printf("Could not find sys_newuname offset.\n");
return -1;
}
}
fclose(kallsyms_file);
uname_offset -= 0xC0000000;
printf("got uname location %x\n", uname_offset);
backup_uname(mem_fd, uname_offset, uname_backup);
printf("uname backup: %x %x %x %x\n",
uname_backup_int[0], uname_backup_int[1],
uname_backup_int[2], uname_backup_int[3]);
test_value = test_patch(mem_fd, uname_offset, 0xA3);
printf("test 1: expected 0xA3, got %x\n", test_value);
test_value = test_patch(mem_fd, uname_offset, 0xE9);
printf("test 2: expected 0xE9, got %x\n", test_value);
if(test_value == 0xE9)
{
pagetable_offset = get_pagetable_offset(mem_fd, uname_offset);
printf("modifying pagetable at %x\n", pagetable_offset);
if((pagetable_offset >= (1024 * 1024 * 64)) || (pagetable_offset == 0xE9))
{
printf("Error: pagetable offset out of range.\n");
failure = -1;
}
else
{
hack_pagetable(mem_fd, pagetable_offset);
drain_wb_flush_tlb(mem_fd, uname_offset);
}
}
else
{
failure = -1;
}
restore_uname(mem_fd, uname_offset, uname_backup);
return failure;
}
