#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 */
typedef struct TYPE_2__ TYPE_1__;

/* Type definitions */
struct TYPE_2__ {
  int /*<<< orphan*/ s_addr;
};
struct sockaddr_in {
  TYPE_1__ sin_addr;
  int /*<<< orphan*/ sin_port;
  int /*<<< orphan*/ sin_family;
};
struct sockaddr {
  int dummy;
};
typedef int /*<<< orphan*/ saddr;

/* Variables and functions */
int /*<<< orphan*/ AF_INET;
int EXIT_FAILURE;
int /*<<< orphan*/ INADDR_ANY;
int /*<<< orphan*/ SOCK_STREAM;
int /*<<< orphan*/ SOL_SOCKET;
int /*<<< orphan*/ SO_REUSEADDR;
int bind(int, struct sockaddr *, int);
int /*<<< orphan*/ htons(int);
int listen(int, int);
int /*<<< orphan*/ perror(char *);
int setsockopt(int, int /*<<< orphan*/, int /*<<< orphan*/, int *, int);
int socket(int /*<<< orphan*/, int /*<<< orphan*/, int /*<<< orphan*/);
int creer_serveur(int port) {
  struct sockaddr_in saddr;
  saddr.sin_family = AF_INET;
  saddr.sin_port = htons(port);
  saddr.sin_addr.s_addr = INADDR_ANY;
  int socket_serveur;
  socket_serveur = socket(AF_INET, SOCK_STREAM, 0);
  if (socket_serveur == -1) {
    perror("socket_serveur");
    return EXIT_FAILURE;
  }
  int optval = 1;
  if (setsockopt(socket_serveur, SOL_SOCKET, SO_REUSEADDR, &optval,
                 sizeof(int)) == -1)
    perror("Can not set SO_REUSEADDR option");
  if (bind(socket_serveur, (struct sockaddr *)&saddr, sizeof(saddr)) == -1) {
    perror("bind socker_serveur");
    return EXIT_FAILURE;
  }
  if (listen(socket_serveur, 10) == -1) {
    perror("listen socket_serveur");
    return EXIT_FAILURE;
  }
  return socket_serveur;
}


x86 assembly (clang, -O0):
<creer_serveur>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %edi,-0x8(%rbp)
mov    0x2e6e(%rip),%rax
mov    (%rax),%eax
mov    %eax,-0x10(%rbp)
mov    -0x8(%rbp),%edi
call   1040 <htons@plt>
mov    %eax,-0x14(%rbp)
mov    0x2e4f(%rip),%rax
mov    (%rax),%eax
mov    %eax,-0x18(%rbp)
mov    0x2e4b(%rip),%rax
mov    (%rax),%edi
mov    0x2e2a(%rip),%rax
mov    (%rax),%esi
xor    %edx,%edx
call   1080 <socket@plt>
mov    %eax,-0x1c(%rbp)
cmpl   $0xffffffff,-0x1c(%rbp)
jne    11d1 <creer_serveur+0x71>
lea    0xe80(%rip),%rdi
call   1070 <perror@plt>
mov    0x2df9(%rip),%rax
mov    (%rax),%eax
mov    %eax,-0x4(%rbp)
jmp    1281 <creer_serveur+0x121>
movl   $0x1,-0x20(%rbp)
mov    -0x1c(%rbp),%edi
mov    0x2e06(%rip),%rax
mov    (%rax),%esi
mov    0x2dcd(%rip),%rax
mov    (%rax),%edx
lea    -0x20(%rbp),%rcx
mov    $0x4,%r8d
call   1030 <setsockopt@plt>
cmp    $0xffffffff,%eax
jne    1211 <creer_serveur+0xb1>
lea    0xdf4(%rip),%rdi
call   1070 <perror@plt>
mov    -0x1c(%rbp),%edi
lea    -0x18(%rbp),%rsi
mov    $0xc,%edx
call   1060 <bind@plt>
cmp    $0xffffffff,%eax
jne    1248 <creer_serveur+0xe8>
lea    0xdee(%rip),%rdi
call   1070 <perror@plt>
mov    0x2d82(%rip),%rax
mov    (%rax),%eax
mov    %eax,-0x4(%rbp)
jmp    1281 <creer_serveur+0x121>
mov    -0x1c(%rbp),%edi
mov    $0xa,%esi
call   1050 <listen@plt>
cmp    $0xffffffff,%eax
jne    127b <creer_serveur+0x11b>
lea    0xdcf(%rip),%rdi
call   1070 <perror@plt>
mov    0x2d4f(%rip),%rax
mov    (%rax),%eax
mov    %eax,-0x4(%rbp)
jmp    1281 <creer_serveur+0x121>
mov    -0x1c(%rbp),%eax
mov    %eax,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<creer_serveur>:
push   %rbx
sub    $0x20,%rsp
mov    0x2e74(%rip),%rbx
mov    (%rbx),%eax
mov    %eax,0x18(%rsp)
call   1040 <htons@plt>
mov    %eax,0x14(%rsp)
mov    0x2e56(%rip),%rax
mov    (%rax),%eax
mov    %eax,0x10(%rsp)
mov    (%rbx),%edi
mov    0x2e37(%rip),%rax
mov    (%rax),%esi
xor    %edx,%edx
call   1080 <socket@plt>
cmp    $0xffffffff,%eax
je     1201 <creer_serveur+0xa1>
mov    %eax,%ebx
movl   $0x1,0xc(%rsp)
mov    0x2e38(%rip),%rax
mov    (%rax),%esi
mov    0x2dff(%rip),%rax
mov    (%rax),%edx
lea    0xc(%rsp),%rcx
mov    %ebx,%edi
mov    $0x4,%r8d
call   1030 <setsockopt@plt>
cmp    $0xffffffff,%eax
je     120a <creer_serveur+0xaa>
lea    0x10(%rsp),%rsi
mov    %ebx,%edi
mov    $0xc,%edx
call   1060 <bind@plt>
cmp    $0xffffffff,%eax
je     1218 <creer_serveur+0xb8>
mov    %ebx,%edi
mov    $0xa,%esi
call   1050 <listen@plt>
cmp    $0xffffffff,%eax
je     1221 <creer_serveur+0xc1>
mov    %ebx,%eax
add    $0x20,%rsp
pop    %rbx
ret
lea    0xe33(%rip),%rdi
jmp    1228 <creer_serveur+0xc8>
lea    0xdef(%rip),%rdi
call   1070 <perror@plt>
jmp    11d2 <creer_serveur+0x72>
lea    0xe01(%rip),%rdi
jmp    1228 <creer_serveur+0xc8>
lea    0xe0c(%rip),%rdi
call   1070 <perror@plt>
mov    0x2d8c(%rip),%rax
mov    (%rax),%ebx
jmp    11f9 <creer_serveur+0x99>

LLVM IR (-O0):
%struct.sockaddr_in = type { %struct.TYPE_2__, i32, i32 }
%struct.TYPE_2__ = type { i32 }
%struct.sockaddr = type { i32 }
@AF_INET = global i32 0
@INADDR_ANY = global i32 0
@SOCK_STREAM = global i32 0
@.str = [15 x i8] c"socket_serveur\00"
@EXIT_FAILURE = global i32 0
@SOL_SOCKET = global i32 0
@SO_REUSEADDR = global i32 0
@.str.1 = [32 x i8] c"Can not set SO_REUSEADDR option\00"
@.str.2 = [20 x i8] c"bind socker_serveur\00"
@.str.3 = [22 x i8] c"listen socket_serveur\00"
define i32 @creer_serveur(i32 %0) {
%2 = alloca i32
%3 = alloca i32
%4 = alloca %struct.sockaddr_in
%5 = alloca i32
%6 = alloca i32
store i32 %0, i32* %3
%7 = load i32, i32* @AF_INET
%8 = getelementptr inbounds %struct.sockaddr_in, %struct.sockaddr_in* %4, i32 0, i32 2
store i32 %7, i32* %8
%9 = load i32, i32* %3
%10 = call i32 @htons(i32 %9)
%11 = getelementptr inbounds %struct.sockaddr_in, %struct.sockaddr_in* %4, i32 0, i32 1
store i32 %10, i32* %11
%12 = load i32, i32* @INADDR_ANY
%13 = getelementptr inbounds %struct.sockaddr_in, %struct.sockaddr_in* %4, i32 0, i32 0
%14 = getelementptr inbounds %struct.TYPE_2__, %struct.TYPE_2__* %13, i32 0, i32 0
store i32 %12, i32* %14
%15 = load i32, i32* @AF_INET
%16 = load i32, i32* @SOCK_STREAM
%17 = call i32 @socket(i32 %15, i32 %16, i32 0)
store i32 %17, i32* %5
%18 = load i32, i32* %5
%19 = icmp eq i32 %18, -1
br i1 %19, label %20, label %23
20: ; preds = %1
%21 = call i32 @perror(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0))
%22 = load i32, i32* @EXIT_FAILURE
store i32 %22, i32* %2
br label %48
23: ; preds = %1
store i32 1, i32* %6
%24 = load i32, i32* %5
%25 = load i32, i32* @SOL_SOCKET
%26 = load i32, i32* @SO_REUSEADDR
%27 = call i32 @setsockopt(i32 %24, i32 %25, i32 %26, i32* %6, i32 4)
%28 = icmp eq i32 %27, -1
br i1 %28, label %29, label %31
29: ; preds = %23
%30 = call i32 @perror(i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.1, i64 0, i64 0))
br label %31
31: ; preds = %29, %23
%32 = load i32, i32* %5
%33 = bitcast %struct.sockaddr_in* %4 to %struct.sockaddr*
%34 = call i32 @bind(i32 %32, %struct.sockaddr* %33, i32 12)
%35 = icmp eq i32 %34, -1
br i1 %35, label %36, label %39
36: ; preds = %31
%37 = call i32 @perror(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.2, i64 0, i64 0))
%38 = load i32, i32* @EXIT_FAILURE
store i32 %38, i32* %2
br label %48
39: ; preds = %31
%40 = load i32, i32* %5
%41 = call i32 @listen(i32 %40, i32 10)
%42 = icmp eq i32 %41, -1
br i1 %42, label %43, label %46
43: ; preds = %39
%44 = call i32 @perror(i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.3, i64 0, i64 0))
%45 = load i32, i32* @EXIT_FAILURE
store i32 %45, i32* %2
br label %48
46: ; preds = %39
%47 = load i32, i32* %5
store i32 %47, i32* %2
br label %48
48: ; preds = %46, %43, %36, %20
%49 = load i32, i32* %2
ret i32 %49
}

LLVM IR (-O2):
%struct.sockaddr_in = type { %struct.TYPE_2__, i32, i32 }
%struct.TYPE_2__ = type { i32 }
%struct.sockaddr = type { i32 }
@AF_INET = global i32 0
@INADDR_ANY = global i32 0
@SOCK_STREAM = global i32 0
@.str = [15 x i8] c"socket_serveur\00"
@EXIT_FAILURE = global i32 0
@SOL_SOCKET = global i32 0
@SO_REUSEADDR = global i32 0
@.str.1 = [32 x i8] c"Can not set SO_REUSEADDR option\00"
@.str.2 = [20 x i8] c"bind socker_serveur\00"
@.str.3 = [22 x i8] c"listen socket_serveur\00"
define i32 @creer_serveur(i32 %0) {
%2 = alloca %struct.sockaddr_in
%3 = alloca i32
%4 = bitcast %struct.sockaddr_in* %2 to i8*
%5 = load i32, i32* @AF_INET
%6 = getelementptr inbounds %struct.sockaddr_in, %struct.sockaddr_in* %2, i64 0, i32 2
store i32 %5, i32* %6
%7 = tail call i32 @htons(i32 %0)
%8 = getelementptr inbounds %struct.sockaddr_in, %struct.sockaddr_in* %2, i64 0, i32 1
store i32 %7, i32* %8
%9 = load i32, i32* @INADDR_ANY
%10 = getelementptr inbounds %struct.sockaddr_in, %struct.sockaddr_in* %2, i64 0, i32 0, i32 0
store i32 %9, i32* %10
%11 = load i32, i32* @AF_INET
%12 = load i32, i32* @SOCK_STREAM
%13 = tail call i32 @socket(i32 %11, i32 %12, i32 0)
%14 = icmp eq i32 %13, -1
br i1 %14, label %15, label %18
15: ; preds = %1
%16 = tail call i32 @perror(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0))
%17 = load i32, i32* @EXIT_FAILURE
br label %39
18: ; preds = %1
%19 = bitcast i32* %3 to i8*
store i32 1, i32* %3
%20 = load i32, i32* @SOL_SOCKET
%21 = load i32, i32* @SO_REUSEADDR
%22 = call i32 @setsockopt(i32 %13, i32 %20, i32 %21, i32* %3, i32 4)
%23 = icmp eq i32 %22, -1
br i1 %23, label %24, label %26
24: ; preds = %18
%25 = call i32 @perror(i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.1, i64 0, i64 0))
br label %26
26: ; preds = %24, %18
%27 = bitcast %struct.sockaddr_in* %2 to %struct.sockaddr*
%28 = call i32 @bind(i32 %13, %struct.sockaddr* %27, i32 12)
%29 = icmp eq i32 %28, -1
br i1 %29, label %33, label %30
30: ; preds = %26
%31 = call i32 @listen(i32 %13, i32 10)
%32 = icmp eq i32 %31, -1
br i1 %32, label %33, label %37
33: ; preds = %30, %26
%34 = phi i8* [ getelementptr inbounds ([20 x i8], [20 x i8]* @.str.2, i64 0, i64 0), %26 ], [ getelementptr inbounds ([22 x i8], [22 x i8]* @.str.3, i64 0, i64 0), %30 ]
%35 = call i32 @perror(i8* %34)
%36 = load i32, i32* @EXIT_FAILURE
br label %37
37: ; preds = %33, %30
%38 = phi i32 [ %13, %30 ], [ %36, %33 ]
br label %39
39: ; preds = %37, %15
%40 = phi i32 [ %17, %15 ], [ %38, %37 ]
ret i32 %40
}