#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 */
struct sockaddr_un {
  int /*<<< orphan*/ sun_path;
  int /*<<< orphan*/ sun_family;
};
struct sockaddr {
  int dummy;
};
typedef int /*<<< orphan*/ sa_un;

/* Variables and functions */
int /*<<< orphan*/ AF_UNIX;
int /*<<< orphan*/ SOCK_STREAM;
scalar_t__ connect(int, struct sockaddr *, scalar_t__);
int /*<<< orphan*/ errno;
int /*<<< orphan*/ exit(int);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *, char *);
int /*<<< orphan*/ memset(struct sockaddr_un *, int /*<<< orphan*/, int);
int socket(int /*<<< orphan*/, int /*<<< orphan*/, int /*<<< orphan*/);
int /*<<< orphan*/ stderr;
char *strerror(int /*<<< orphan*/);
scalar_t__ strlen(int /*<<< orphan*/);
int /*<<< orphan*/ strncpy(int /*<<< orphan*/, char const *, int);
int connect_to_server(const char *sock_name) {
  int sock;
  struct sockaddr_un sa_un;
  sock = socket(AF_UNIX, SOCK_STREAM, 0);
  memset(&sa_un, 0, sizeof(sa_un));
  sa_un.sun_family = AF_UNIX;
  strncpy(sa_un.sun_path, sock_name, (sizeof(sa_un.sun_path) - 1));
  if (connect(sock, (struct sockaddr *)&sa_un,
              strlen(sa_un.sun_path) + sizeof(sa_un.sun_family))) {
    fprintf(stderr, "wdctl: wifidog probably not started (Error: %s)\n",
            strerror(errno));
    exit(1);
  }
  return sock;
}


x86 assembly (clang, -O0):
<connect_to_server>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
mov    %rdi,-0x8(%rbp)
mov    0x2e55(%rip),%rax
mov    (%rax),%edi
mov    0x2e34(%rip),%rax
mov    (%rax),%esi
xor    %edx,%edx
call   10a0 <socket@plt>
mov    %eax,-0xc(%rbp)
lea    -0x18(%rbp),%rdi
xor    %esi,%esi
mov    $0x8,%edx
call   1050 <memset@plt>
mov    0x2e29(%rip),%rax
mov    (%rax),%eax
mov    %eax,-0x14(%rbp)
mov    -0x18(%rbp),%edi
mov    -0x8(%rbp),%rsi
mov    $0x3,%edx
call   1030 <strncpy@plt>
mov    -0xc(%rbp),%eax
mov    %eax,-0x24(%rbp)
lea    -0x18(%rbp),%rax
mov    %rax,-0x20(%rbp)
mov    -0x18(%rbp),%edi
call   1040 <strlen@plt>
mov    -0x24(%rbp),%edi
mov    -0x20(%rbp),%rsi
mov    %rax,%rdx
add    $0x4,%rdx
call   1080 <connect@plt>
cmp    $0x0,%rax
je     123e <connect_to_server+0xbe>
mov    0x2dc9(%rip),%rax
mov    (%rax),%eax
mov    %eax,-0x28(%rbp)
mov    0x2dad(%rip),%rax
mov    (%rax),%edi
call   1090 <strerror@plt>
mov    -0x28(%rbp),%edi
mov    %rax,%rdx
lea    0xdd1(%rip),%rsi
call   1060 <fprintf@plt>
mov    $0x1,%edi
call   1070 <exit@plt>
mov    -0xc(%rbp),%eax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<connect_to_server>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
mov    %rdi,%r14
mov    0x2e56(%rip),%r12
mov    (%r12),%edi
mov    0x2e33(%rip),%rax
mov    (%rax),%esi
xor    %edx,%edx
call   10a0 <socket@plt>
mov    %eax,%ebx
mov    %rsp,%r15
mov    %r15,%rdi
xor    %esi,%esi
mov    $0x8,%edx
call   1050 <memset@plt>
mov    (%r12),%eax
mov    %eax,0x4(%rsp)
mov    (%rsp),%edi
mov    %r14,%rsi
mov    $0x3,%edx
call   1030 <strncpy@plt>
mov    (%rsp),%edi
call   1040 <strlen@plt>
lea    0x4(%rax),%rdx
mov    %ebx,%edi
mov    %r15,%rsi
call   1080 <connect@plt>
test   %rax,%rax
jne    11fb <connect_to_server+0x7b>
mov    %ebx,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
ret
mov    0x2dd6(%rip),%rax
mov    (%rax),%ebx
mov    0x2dbd(%rip),%rax
mov    (%rax),%edi
call   1090 <strerror@plt>
lea    0xde7(%rip),%rsi
mov    %ebx,%edi
mov    %rax,%rdx
call   1060 <fprintf@plt>
mov    $0x1,%edi
call   1070 <exit@plt>

LLVM IR (-O0):
%struct.sockaddr_un = type { i32, i32 }
%struct.sockaddr = type { i32 }
@AF_UNIX = global i32 0
@SOCK_STREAM = global i32 0
@stderr = global i32 0
@.str = [49 x i8] c"wdctl: wifidog probably not started (Error: %s)\0A\00"
@errno = global i32 0
define i32 @connect_to_server(i8* %0) {
%2 = alloca i8*
%3 = alloca i32
%4 = alloca %struct.sockaddr_un
store i8* %0, i8** %2
%5 = load i32, i32* @AF_UNIX
%6 = load i32, i32* @SOCK_STREAM
%7 = call i32 @socket(i32 %5, i32 %6, i32 0)
store i32 %7, i32* %3
%8 = call i32 @memset(%struct.sockaddr_un* %4, i32 0, i32 8)
%9 = load i32, i32* @AF_UNIX
%10 = getelementptr inbounds %struct.sockaddr_un, %struct.sockaddr_un* %4, i32 0, i32 1
store i32 %9, i32* %10
%11 = getelementptr inbounds %struct.sockaddr_un, %struct.sockaddr_un* %4, i32 0, i32 0
%12 = load i32, i32* %11
%13 = load i8*, i8** %2
%14 = call i32 @strncpy(i32 %12, i8* %13, i32 3)
%15 = load i32, i32* %3
%16 = bitcast %struct.sockaddr_un* %4 to %struct.sockaddr*
%17 = getelementptr inbounds %struct.sockaddr_un, %struct.sockaddr_un* %4, i32 0, i32 0
%18 = load i32, i32* %17
%19 = call i64 @strlen(i32 %18)
%20 = add i64 %19, 4
%21 = call i64 @connect(i32 %15, %struct.sockaddr* %16, i64 %20)
%22 = icmp ne i64 %21, 0
br i1 %22, label %23, label %29
23: ; preds = %1
%24 = load i32, i32* @stderr
%25 = load i32, i32* @errno
%26 = call i8* @strerror(i32 %25)
%27 = call i32 @fprintf(i32 %24, i8* getelementptr inbounds ([49 x i8], [49 x i8]* @.str, i64 0, i64 0), i8* %26)
%28 = call i32 @exit(i32 1)
unreachable
29: ; preds = %1
%30 = load i32, i32* %3
ret i32 %30
}

LLVM IR (-O2):
%struct.sockaddr_un = type { i32, i32 }
%struct.sockaddr = type { i32 }
@AF_UNIX = global i32 0
@SOCK_STREAM = global i32 0
@stderr = global i32 0
@.str = [49 x i8] c"wdctl: wifidog probably not started (Error: %s)\0A\00"
@errno = global i32 0
define i32 @connect_to_server(i8* %0) {
%2 = alloca %struct.sockaddr_un
%3 = bitcast %struct.sockaddr_un* %2 to i8*
%4 = load i32, i32* @AF_UNIX
%5 = load i32, i32* @SOCK_STREAM
%6 = tail call i32 @socket(i32 %4, i32 %5, i32 0)
%7 = call i32 @memset(%struct.sockaddr_un* %2, i32 0, i32 8)
%8 = load i32, i32* @AF_UNIX
%9 = getelementptr inbounds %struct.sockaddr_un, %struct.sockaddr_un* %2, i64 0, i32 1
store i32 %8, i32* %9
%10 = getelementptr inbounds %struct.sockaddr_un, %struct.sockaddr_un* %2, i64 0, i32 0
%11 = load i32, i32* %10
%12 = call i32 @strncpy(i32 %11, i8* %0, i32 3)
%13 = bitcast %struct.sockaddr_un* %2 to %struct.sockaddr*
%14 = load i32, i32* %10
%15 = call i64 @strlen(i32 %14)
%16 = add i64 %15, 4
%17 = call i64 @connect(i32 %6, %struct.sockaddr* %13, i64 %16)
%18 = icmp eq i64 %17, 0
br i1 %18, label %25, label %19
19: ; preds = %1
%20 = load i32, i32* @stderr
%21 = load i32, i32* @errno
%22 = call i8* @strerror(i32 %21)
%23 = call i32 @fprintf(i32 %20, i8* getelementptr inbounds ([49 x i8], [49 x i8]* @.str, i64 0, i64 0), i8* %22)
%24 = call i32 @exit(i32 1)
unreachable
25: ; preds = %1
ret i32 %6
}