#define NULL ((void *)0)
typedef unsigned long size_t; // Customize by platform.
typedef long intptr_t;
typedef unsigned long uintptr_t;
typedef long scalar_t__; // Either arithmetic or pointer type.
/* By default, we understand bool (as a convenience). */
typedef int bool;
#define false 0
#define true 1

/* Forward declarations */

/* Type definitions */

/* Variables and functions */
int /*<<< orphan*/ RSA_F_RSA_PADDING_ADD_SSLV23;
int /*<<< orphan*/ RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE;
int /*<<< orphan*/ RSAerr(int /*<<< orphan*/, int /*<<< orphan*/);
int /*<<< orphan*/ arc4random_buf(unsigned char *, int);
int /*<<< orphan*/ memcpy(unsigned char *, unsigned char const *, int);
int /*<<< orphan*/ memset(unsigned char *, int, int);
int RSA_padding_add_SSLv23(unsigned char *to, int tlen,
                           const unsigned char *from, int flen) {
  int i, j;
  unsigned char *p;
  if (flen > tlen - 11) {
    RSAerr(RSA_F_RSA_PADDING_ADD_SSLV23, RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE);
    return 0;
  }
  p = (unsigned char *)to;
  *(p++) = 0;
  *(p++) = 2;
  j = tlen - 3 - 8 - flen;
  arc4random_buf(p, j);
  for (i = 0; i < j; i++) {
    while (*p == '\0')
      arc4random_buf(p, 1);
    p++;
  }
  memset(p, 3, 8);
  p += 8;
  *(p++) = '\0';
  memcpy(p, from, flen);
  return 1;
}


x86 assembly (clang, -O0):
<RSA_padding_add_SSLv23>:
push   %rbp
mov    %rsp,%rbp
sub    $0x40,%rsp
mov    %rdi,-0x10(%rbp)
mov    %esi,-0x14(%rbp)
mov    %rdx,-0x20(%rbp)
mov    %ecx,-0x24(%rbp)
mov    -0x24(%rbp),%eax
mov    -0x14(%rbp),%ecx
sub    $0xb,%ecx
cmp    %ecx,%eax
jle    118a <RSA_padding_add_SSLv23+0x4a>
mov    0x2e6a(%rip),%rax
mov    (%rax),%edi
mov    0x2e71(%rip),%rax
mov    (%rax),%esi
call   1060 <RSAerr@plt>
movl   $0x0,-0x4(%rbp)
jmp    126e <RSA_padding_add_SSLv23+0x12e>
mov    -0x10(%rbp),%rax
mov    %rax,-0x38(%rbp)
mov    -0x38(%rbp),%rax
mov    %rax,%rcx
add    $0x1,%rcx
mov    %rcx,-0x38(%rbp)
movb   $0x0,(%rax)
mov    -0x38(%rbp),%rax
mov    %rax,%rcx
add    $0x1,%rcx
mov    %rcx,-0x38(%rbp)
movb   $0x2,(%rax)
mov    -0x14(%rbp),%eax
sub    $0x3,%eax
sub    $0x8,%eax
sub    -0x24(%rbp),%eax
mov    %eax,-0x2c(%rbp)
mov    -0x38(%rbp),%rdi
mov    -0x2c(%rbp),%esi
call   1030 <arc4random_buf@plt>
movl   $0x0,-0x28(%rbp)
mov    -0x28(%rbp),%eax
cmp    -0x2c(%rbp),%eax
jge    1226 <RSA_padding_add_SSLv23+0xe6>
jmp    11e9 <RSA_padding_add_SSLv23+0xa9>
mov    -0x38(%rbp),%rax
movzbl (%rax),%eax
cmp    $0x0,%eax
jne    120c <RSA_padding_add_SSLv23+0xcc>
mov    -0x38(%rbp),%rdi
mov    $0x1,%esi
call   1030 <arc4random_buf@plt>
jmp    11e9 <RSA_padding_add_SSLv23+0xa9>
mov    -0x38(%rbp),%rax
add    $0x1,%rax
mov    %rax,-0x38(%rbp)
mov    -0x28(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x28(%rbp)
jmp    11d8 <RSA_padding_add_SSLv23+0x98>
mov    -0x38(%rbp),%rdi
mov    $0x3,%esi
mov    $0x8,%edx
call   1040 <memset@plt>
mov    -0x38(%rbp),%rax
add    $0x8,%rax
mov    %rax,-0x38(%rbp)
mov    -0x38(%rbp),%rax
mov    %rax,%rcx
add    $0x1,%rcx
mov    %rcx,-0x38(%rbp)
movb   $0x0,(%rax)
mov    -0x38(%rbp),%rdi
mov    -0x20(%rbp),%rsi
mov    -0x24(%rbp),%edx
call   1050 <memcpy@plt>
movl   $0x1,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x40,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<RSA_padding_add_SSLv23>:
push   %rbp
push   %r15
push   %r14
push   %r12
push   %rbx
mov    %esi,%r12d
add    $0xfffffff5,%r12d
mov    %r12d,%esi
sub    %ecx,%esi
jge    1171 <RSA_padding_add_SSLv23+0x31>
mov    0x2e7b(%rip),%rax
mov    (%rax),%edi
mov    0x2e82(%rip),%rax
mov    (%rax),%esi
call   1060 <RSAerr@plt>
xor    %eax,%eax
jmp    11eb <RSA_padding_add_SSLv23+0xab>
mov    %ecx,%r15d
mov    %rdx,%r14
mov    %rdi,%rbx
movw   $0x200,(%rdi)
add    $0x2,%rbx
mov    %rbx,%rdi
call   1030 <arc4random_buf@plt>
sub    %r15d,%r12d
jle    11be <RSA_padding_add_SSLv23+0x7e>
xor    %ebp,%ebp
jmp    11ad <RSA_padding_add_SSLv23+0x6d>
cs nopw 0x0(%rax,%rax,1)
xchg   %ax,%ax
mov    %rbx,%rdi
mov    $0x1,%esi
call   1030 <arc4random_buf@plt>
cmpb   $0x0,(%rbx)
je     11a0 <RSA_padding_add_SSLv23+0x60>
add    $0x1,%rbx
add    $0x1,%ebp
cmp    %r12d,%ebp
jne    11ad <RSA_padding_add_SSLv23+0x6d>
mov    %rbx,%rdi
mov    $0x3,%esi
mov    $0x8,%edx
call   1040 <memset@plt>
movb   $0x0,0x8(%rbx)
add    $0x9,%rbx
mov    %rbx,%rdi
mov    %r14,%rsi
mov    %r15d,%edx
call   1050 <memcpy@plt>
mov    $0x1,%eax
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
@RSA_F_RSA_PADDING_ADD_SSLV23 = global i32 0
@RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE = global i32 0
define i32 @RSA_padding_add_SSLv23(i8* %0, i32 %1, i8* %2, i32 %3) {
%5 = alloca i32
%6 = alloca i8*
%7 = alloca i32
%8 = alloca i8*
%9 = alloca i32
%10 = alloca i32
%11 = alloca i32
%12 = alloca i8*
store i8* %0, i8** %6
store i32 %1, i32* %7
store i8* %2, i8** %8
store i32 %3, i32* %9
%13 = load i32, i32* %9
%14 = load i32, i32* %7
%15 = sub nsw i32 %14, 11
%16 = icmp sgt i32 %13, %15
br i1 %16, label %17, label %21
17: ; preds = %4
%18 = load i32, i32* @RSA_F_RSA_PADDING_ADD_SSLV23
%19 = load i32, i32* @RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE
%20 = call i32 @RSAerr(i32 %18, i32 %19)
store i32 0, i32* %5
br label %65
21: ; preds = %4
%22 = load i8*, i8** %6
store i8* %22, i8** %12
%23 = load i8*, i8** %12
%24 = getelementptr inbounds i8, i8* %23, i32 1
store i8* %24, i8** %12
store i8 0, i8* %23
%25 = load i8*, i8** %12
%26 = getelementptr inbounds i8, i8* %25, i32 1
store i8* %26, i8** %12
store i8 2, i8* %25
%27 = load i32, i32* %7
%28 = sub nsw i32 %27, 3
%29 = sub nsw i32 %28, 8
%30 = load i32, i32* %9
%31 = sub nsw i32 %29, %30
store i32 %31, i32* %11
%32 = load i8*, i8** %12
%33 = load i32, i32* %11
%34 = call i32 @arc4random_buf(i8* %32, i32 %33)
store i32 0, i32* %10
br label %35
35: ; preds = %51, %21
%36 = load i32, i32* %10
%37 = load i32, i32* %11
%38 = icmp slt i32 %36, %37
br i1 %38, label %39, label %54
39: ; preds = %35
br label %40
40: ; preds = %45, %39
%41 = load i8*, i8** %12
%42 = load i8, i8* %41
%43 = zext i8 %42 to i32
%44 = icmp eq i32 %43, 0
br i1 %44, label %45, label %48
45: ; preds = %40
%46 = load i8*, i8** %12
%47 = call i32 @arc4random_buf(i8* %46, i32 1)
br label %40
48: ; preds = %40
%49 = load i8*, i8** %12
%50 = getelementptr inbounds i8, i8* %49, i32 1
store i8* %50, i8** %12
br label %51
51: ; preds = %48
%52 = load i32, i32* %10
%53 = add nsw i32 %52, 1
store i32 %53, i32* %10
br label %35
54: ; preds = %35
%55 = load i8*, i8** %12
%56 = call i32 @memset(i8* %55, i32 3, i32 8)
%57 = load i8*, i8** %12
%58 = getelementptr inbounds i8, i8* %57, i64 8
store i8* %58, i8** %12
%59 = load i8*, i8** %12
%60 = getelementptr inbounds i8, i8* %59, i32 1
store i8* %60, i8** %12
store i8 0, i8* %59
%61 = load i8*, i8** %12
%62 = load i8*, i8** %8
%63 = load i32, i32* %9
%64 = call i32 @memcpy(i8* %61, i8* %62, i32 %63)
store i32 1, i32* %5
br label %65
65: ; preds = %54, %17
%66 = load i32, i32* %5
ret i32 %66
}

LLVM IR (-O2):
@RSA_F_RSA_PADDING_ADD_SSLV23 = global i32 0
@RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE = global i32 0
define i32 @RSA_padding_add_SSLv23(i8* %0, i32 %1, i8* %2, i32 %3) {
%5 = add nsw i32 %1, -11
%6 = icmp slt i32 %5, %3
br i1 %6, label %7, label %11
7: ; preds = %4
%8 = load i32, i32* @RSA_F_RSA_PADDING_ADD_SSLV23
%9 = load i32, i32* @RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE
%10 = tail call i32 @RSAerr(i32 %8, i32 %9)
br label %36
11: ; preds = %4
%12 = getelementptr inbounds i8, i8* %0, i64 1
store i8 0, i8* %0
%13 = getelementptr inbounds i8, i8* %0, i64 2
store i8 2, i8* %12
%14 = sub nsw i32 %5, %3
%15 = tail call i32 @arc4random_buf(i8* %13, i32 %14)
%16 = icmp sgt i32 %14, 0
br i1 %16, label %17, label %30
17: ; preds = %11, %26
%18 = phi i8* [ %27, %26 ], [ %13, %11 ]
%19 = phi i32 [ %28, %26 ], [ 0, %11 ]
%20 = load i8, i8* %18
%21 = icmp eq i8 %20, 0
br i1 %21, label %22, label %26
22: ; preds = %17, %22
%23 = tail call i32 @arc4random_buf(i8* %18, i32 1)
%24 = load i8, i8* %18
%25 = icmp eq i8 %24, 0
br i1 %25, label %22, label %26
26: ; preds = %22, %17
%27 = getelementptr inbounds i8, i8* %18, i64 1
%28 = add nuw nsw i32 %19, 1
%29 = icmp eq i32 %28, %14
br i1 %29, label %30, label %17
30: ; preds = %26, %11
%31 = phi i8* [ %13, %11 ], [ %27, %26 ]
%32 = tail call i32 @memset(i8* %31, i32 3, i32 8)
%33 = getelementptr inbounds i8, i8* %31, i64 8
%34 = getelementptr inbounds i8, i8* %31, i64 9
store i8 0, i8* %33
%35 = tail call i32 @memcpy(i8* %34, i8* %2, i32 %3)
br label %36
36: ; preds = %30, %7
%37 = phi i32 [ 0, %7 ], [ 1, %30 ]
ret i32 %37
}