#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 */
char *dvalue(char *);
int /*<<< orphan*/ exit(int);
int /*<<< orphan*/ free(char *);
int /*<<< orphan*/ printf(char *, ...);
int strlen(char *);
scalar_t__ strncmp(char *, char *, int);
int main(int argc, char **argv) {
  char *dv;
  if (argc != 2) {
    printf("{NS1} Decrypter\n");
    printf("Usage: %s \"{NS1}CRYPTEDPW\"\n", argv[0]);
    exit(1);
  }
  if (strlen(argv[1]) < 5 || strncmp(argv[1], "{NS1}", 5) != 0) {
    printf("Provided argument doesn't look like an NS1 hash.\n");
    printf(" (needs to begin with \"{NS1}\")\n");
    exit(2);
  }
  dv = dvalue(argv[1]);
  printf("%s\n", dv);
  free(dv);
  exit(0);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
cmpl   $0x2,-0x8(%rbp)
je     11ad <main+0x4d>
lea    0xe79(%rip),%rdi
mov    $0x0,%al
call   1060 <printf@plt>
mov    -0x10(%rbp),%rax
mov    (%rax),%rsi
lea    0xe75(%rip),%rdi
mov    $0x0,%al
call   1060 <printf@plt>
mov    $0x1,%edi
call   1080 <exit@plt>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
call   1050 <strlen@plt>
cmp    $0x5,%eax
jl     11e6 <main+0x86>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
lea    0xe5b(%rip),%rsi
mov    $0x5,%edx
call   1040 <strncmp@plt>
cmp    $0x0,%rax
je     120c <main+0xac>
lea    0xe46(%rip),%rdi
mov    $0x0,%al
call   1060 <printf@plt>
lea    0xe6a(%rip),%rdi
mov    $0x0,%al
call   1060 <printf@plt>
mov    $0x2,%edi
call   1080 <exit@plt>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
call   1070 <dvalue@plt>
mov    %rax,-0x18(%rbp)
mov    -0x18(%rbp),%rsi
lea    0xe5d(%rip),%rdi
mov    $0x0,%al
call   1060 <printf@plt>
mov    -0x18(%rbp),%rdi
call   1030 <free@plt>
xor    %edi,%edi
call   1080 <exit@plt>

x86 assembly (clang, -O2):
<main>:
push   %rbx
mov    %rsi,%rbx
cmp    $0x2,%edi
jne    11c4 <main+0x54>
mov    0x8(%rbx),%rdi
call   1060 <strlen@plt>
cmp    $0x5,%eax
jl     11eb <main+0x7b>
mov    0x8(%rbx),%rdi
lea    0xe8a(%rip),%rsi
mov    $0x5,%edx
call   1040 <strncmp@plt>
test   %rax,%rax
jne    11eb <main+0x7b>
mov    0x8(%rbx),%rdi
call   1080 <dvalue@plt>
mov    %rax,%rbx
mov    %rax,%rdi
call   1050 <puts@plt>
mov    %rbx,%rdi
call   1030 <free@plt>
xor    %edi,%edi
call   1090 <exit@plt>
lea    0xea7(%rip),%rdi
call   1050 <puts@plt>
mov    (%rbx),%rsi
lea    0xe26(%rip),%rdi
xor    %eax,%eax
call   1070 <printf@plt>
mov    $0x1,%edi
call   1090 <exit@plt>
lea    0xe30(%rip),%rdi
call   1050 <puts@plt>
lea    0xe55(%rip),%rdi
call   1050 <puts@plt>
mov    $0x2,%edi
call   1090 <exit@plt>

LLVM IR (-O0):
@.str = [17 x i8] c"{NS1} Decrypter\0A\00"
@.str.1 = [28 x i8] c"Usage: %s \22{NS1}CRYPTEDPW\22\0A\00"
@.str.2 = [6 x i8] c"{NS1}\00"
@.str.3 = [50 x i8] c"Provided argument doesn't look like an NS1 hash.\0A\00"
@.str.4 = [32 x i8] c" (needs to begin with \22{NS1}\22)\0A\00"
@.str.5 = [4 x i8] c"%s\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i8*
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%7 = load i32, i32* %4
%8 = icmp ne i32 %7, 2
br i1 %8, label %9, label %16
9: ; preds = %2
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str, i64 0, i64 0))
%11 = load i8**, i8*** %5
%12 = getelementptr inbounds i8*, i8** %11, i64 0
%13 = load i8*, i8** %12
%14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str.1, i64 0, i64 0), i8* %13)
%15 = call i32 @exit(i32 1)
unreachable
16: ; preds = %2
%17 = load i8**, i8*** %5
%18 = getelementptr inbounds i8*, i8** %17, i64 1
%19 = load i8*, i8** %18
%20 = call i32 @strlen(i8* %19)
%21 = icmp slt i32 %20, 5
br i1 %21, label %28, label %22
22: ; preds = %16
%23 = load i8**, i8*** %5
%24 = getelementptr inbounds i8*, i8** %23, i64 1
%25 = load i8*, i8** %24
%26 = call i64 @strncmp(i8* %25, i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0), i32 5)
%27 = icmp ne i64 %26, 0
br i1 %27, label %28, label %32
28: ; preds = %22, %16
%29 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([50 x i8], [50 x i8]* @.str.3, i64 0, i64 0))
%30 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.4, i64 0, i64 0))
%31 = call i32 @exit(i32 2)
unreachable
32: ; preds = %22
%33 = load i8**, i8*** %5
%34 = getelementptr inbounds i8*, i8** %33, i64 1
%35 = load i8*, i8** %34
%36 = call i8* @dvalue(i8* %35)
store i8* %36, i8** %6
%37 = load i8*, i8** %6
%38 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.5, i64 0, i64 0), i8* %37)
%39 = load i8*, i8** %6
%40 = call i32 @free(i8* %39)
%41 = call i32 @exit(i32 0)
unreachable
}

LLVM IR (-O2):
@.str.1 = [28 x i8] c"Usage: %s \22{NS1}CRYPTEDPW\22\0A\00"
@.str.2 = [6 x i8] c"{NS1}\00"
@str = [49 x i8] c"Provided argument doesn't look like an NS1 hash.\00"
@str.6 = [31 x i8] c" (needs to begin with \22{NS1}\22)\00"
@str.7 = [16 x i8] c"{NS1} Decrypter\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = icmp eq i32 %0, 2
br i1 %3, label %9, label %4
4: ; preds = %2
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([16 x i8], [16 x i8]* @str.7, i64 0, i64 0))
%6 = load i8*, i8** %1
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([28 x i8], [28 x i8]* @.str.1, i64 0, i64 0), i8* %6)
%8 = tail call i32 @exit(i32 1)
unreachable
9: ; preds = %2
%10 = getelementptr inbounds i8*, i8** %1, i64 1
%11 = load i8*, i8** %10
%12 = tail call i32 @strlen(i8* %11)
%13 = icmp slt i32 %12, 5
br i1 %13, label %18, label %14
14: ; preds = %9
%15 = load i8*, i8** %10
%16 = tail call i64 @strncmp(i8* %15, i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0), i32 5)
%17 = icmp eq i64 %16, 0
br i1 %17, label %22, label %18
18: ; preds = %14, %9
%19 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([49 x i8], [49 x i8]* @str, i64 0, i64 0))
%20 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 x i8]* @str.6, i64 0, i64 0))
%21 = tail call i32 @exit(i32 2)
unreachable
22: ; preds = %14
%23 = load i8*, i8** %10
%24 = tail call i8* @dvalue(i8* %23)
%25 = tail call i32 @puts(i8* dereferenceable(1) %24)
%26 = tail call i32 @free(i8* %24)
%27 = tail call i32 @exit(i32 0)
unreachable
}