#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 */
typedef int /*<<< orphan*/ FILE;

/* Variables and functions */
int /*<<< orphan*/ fclose(int /*<<< orphan*/ *);
int /*<<< orphan*/ *fopen(char const *, char *);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/ *, char *);
int blacklist_create(const char *filename) {
  FILE *blacklist_file = fopen(filename, "w");
  if (blacklist_file == NULL)
    return -1;
  fprintf(blacklist_file,
          "# SSHGuard blacklist file ( http://www.sshguard.net/ ).\n");
  fprintf(blacklist_file, "# Format of entries: "
                          "BLACKLIST_TIMESTAMP|SERVICE|ADDRESS_TYPE|ADDRESS\n");
  fclose(blacklist_file);
  return 0;
}


x86 assembly (clang, -O0):
<blacklist_create>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x10(%rbp)
mov    -0x10(%rbp),%rdi
lea    0xeb9(%rip),%rsi
call   1050 <fopen@plt>
mov    %rax,-0x18(%rbp)
cmpq   $0x0,-0x18(%rbp)
jne    1167 <blacklist_create+0x37>
movl   $0xffffffff,-0x4(%rbp)
jmp    1197 <blacklist_create+0x67>
mov    -0x18(%rbp),%rdi
lea    0xe90(%rip),%rsi
call   1040 <fprintf@plt>
mov    -0x18(%rbp),%rdi
lea    0xeb9(%rip),%rsi
call   1040 <fprintf@plt>
mov    -0x18(%rbp),%rdi
call   1030 <fclose@plt>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<blacklist_create>:
push   %rbx
lea    0xec8(%rip),%rsi
call   1040 <fopen@plt>
test   %rax,%rax
je     1183 <blacklist_create+0x53>
mov    %rax,%rbx
lea    0xeb6(%rip),%rdi
mov    $0x38,%esi
mov    $0x1,%edx
mov    %rax,%rcx
call   1050 <fwrite@plt>
lea    0xed6(%rip),%rdi
mov    $0x46,%esi
mov    $0x1,%edx
mov    %rbx,%rcx
call   1050 <fwrite@plt>
mov    %rbx,%rdi
call   1030 <fclose@plt>
xor    %eax,%eax
pop    %rbx
ret
mov    $0xffffffff,%eax
pop    %rbx
ret

LLVM IR (-O0):
@.str = [2 x i8] c"w\00"
@.str.1 = [57 x i8] c"# SSHGuard blacklist file ( http://www.sshguard.net/ ).\0A\00"
@.str.2 = [71 x i8] c"# Format of entries: BLACKLIST_TIMESTAMP|SERVICE|ADDRESS_TYPE|ADDRESS\0A\00"
define i32 @blacklist_create(i8* %0) {
%2 = alloca i32
%3 = alloca i8*
%4 = alloca i32*
store i8* %0, i8** %3
%5 = load i8*, i8** %3
%6 = call i32* @fopen(i8* %5, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
store i32* %6, i32** %4
%7 = load i32*, i32** %4
%8 = icmp eq i32* %7, null
br i1 %8, label %9, label %10
9: ; preds = %1
store i32 -1, i32* %2
br label %17
10: ; preds = %1
%11 = load i32*, i32** %4
%12 = call i32 @fprintf(i32* %11, i8* getelementptr inbounds ([57 x i8], [57 x i8]* @.str.1, i64 0, i64 0))
%13 = load i32*, i32** %4
%14 = call i32 @fprintf(i32* %13, i8* getelementptr inbounds ([71 x i8], [71 x i8]* @.str.2, i64 0, i64 0))
%15 = load i32*, i32** %4
%16 = call i32 @fclose(i32* %15)
store i32 0, i32* %2
br label %17
17: ; preds = %10, %9
%18 = load i32, i32* %2
ret i32 %18
}

LLVM IR (-O2):
@.str = [2 x i8] c"w\00"
@.str.1 = [57 x i8] c"# SSHGuard blacklist file ( http://www.sshguard.net/ ).\0A\00"
@.str.2 = [71 x i8] c"# Format of entries: BLACKLIST_TIMESTAMP|SERVICE|ADDRESS_TYPE|ADDRESS\0A\00"
define i32 @blacklist_create(i8* nocapture %0) {
%2 = tail call i32* @fopen(i8* %0, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
%3 = icmp eq i32* %2, null
br i1 %3, label %8, label %4
4: ; preds = %1
%5 = tail call i64 @fwrite(i8* getelementptr inbounds ([57 x i8], [57 x i8]* @.str.1, i64 0, i64 0), i64 56, i64 1, i32* %2)
%6 = tail call i64 @fwrite(i8* getelementptr inbounds ([71 x i8], [71 x i8]* @.str.2, i64 0, i64 0), i64 70, i64 1, i32* %2)
%7 = tail call i32 @fclose(i32* %2)
br label %8
8: ; preds = %1, %4
%9 = phi i32 [ 0, %4 ], [ -1, %1 ]
ret i32 %9
}