#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_in6 {
  int /*<<< orphan*/ sin6_addr;
};
struct sockaddr_in {
  int /*<<< orphan*/ sin_addr;
};
struct addrinfo {
  scalar_t__ ai_family;
  struct addrinfo *ai_next;
  scalar_t__ ai_addr;
  int /*<<< orphan*/ ai_socktype;
};

/* Variables and functions */
scalar_t__ AF_INET;
scalar_t__ AF_UNSPEC;
int INET6_ADDRSTRLEN;
int /*<<< orphan*/ SOCK_STREAM;
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *, ...);
int /*<<< orphan*/ freeaddrinfo(struct addrinfo *);
char *gai_strerror(int);
int getaddrinfo(char *, int /*<<< orphan*/ *, struct addrinfo *,
                struct addrinfo **);
int /*<<< orphan*/ inet_ntop(scalar_t__, void *, char *, int);
int /*<<< orphan*/ memset(struct addrinfo *, int /*<<< orphan*/, int);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ stderr;
int main(int argc, char *argv[]) {
  struct addrinfo hints, *res, *p;
  void *addr;
  int status;
  char ipstr[INET6_ADDRSTRLEN], ipver;
  if (argc != 2) {
    fprintf(stderr, "usage: showip hostname\n");
    return 1;
  }
  memset(&hints, 0, sizeof hints);
  hints.ai_family = AF_UNSPEC;
  hints.ai_socktype = SOCK_STREAM;
  if ((status = getaddrinfo(argv[1], NULL, &hints, &res)) != 0) {
    fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(status));
    return 2;
  }
  printf("IP addresses for %s:\n\n", argv[1]);
  p = res;
  while (p != NULL) {
    if (p->ai_family == AF_INET) {
      struct sockaddr_in *ipv4 = (struct sockaddr_in *)p->ai_addr;
      addr = &(ipv4->sin_addr);
      ipver = '4';
    } else {
      struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *)p->ai_addr;
      addr = &(ipv6->sin6_addr);
      ipver = '6';
    }
    inet_ntop(p->ai_family, addr, ipstr, sizeof ipstr);
    printf(" IPv%c: %s\n", ipver, ipstr);
    p = p->ai_next;
  }
  freeaddrinfo(res);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x90,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
mov    0x2e58(%rip),%rax
mov    (%rax),%eax
mov    %rax,-0x88(%rbp)
mov    %rsp,%rcx
mov    %rcx,-0x58(%rbp)
mov    %rax,%rdx
add    $0xf,%rdx
and    $0xfffffffffffffff0,%rdx
mov    %rsp,%rcx
sub    %rdx,%rcx
mov    %rcx,-0x80(%rbp)
mov    %rcx,%rsp
mov    %rax,-0x60(%rbp)
cmpl   $0x2,-0x8(%rbp)
je     11f0 <main+0x80>
mov    0x2dfb(%rip),%rax
mov    (%rax),%edi
lea    0xe2a(%rip),%rsi
mov    $0x0,%al
call   1070 <fprintf@plt>
movl   $0x1,-0x4(%rbp)
movl   $0x1,-0x68(%rbp)
jmp    1350 <main+0x1e0>
lea    -0x30(%rbp),%rdi
xor    %esi,%esi
mov    $0x20,%edx
call   1060 <memset@plt>
mov    0x2dd1(%rip),%rax
mov    (%rax),%rax
mov    %rax,-0x30(%rbp)
mov    0x2dab(%rip),%rax
mov    (%rax),%eax
mov    %eax,-0x18(%rbp)
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rdi
xor    %eax,%eax
mov    %eax,%esi
lea    -0x30(%rbp),%rdx
lea    -0x38(%rbp),%rcx
call   1080 <getaddrinfo@plt>
mov    %eax,-0x4c(%rbp)
cmp    $0x0,%eax
je     1280 <main+0x110>
mov    0x2d82(%rip),%rax
mov    (%rax),%eax
mov    %eax,-0x8c(%rbp)
mov    -0x4c(%rbp),%edi
call   1050 <gai_strerror@plt>
mov    -0x8c(%rbp),%edi
mov    %rax,%rdx
lea    0xdb2(%rip),%rsi
mov    $0x0,%al
call   1070 <fprintf@plt>
movl   $0x2,-0x4(%rbp)
movl   $0x1,-0x68(%rbp)
jmp    1350 <main+0x1e0>
mov    -0x10(%rbp),%rax
mov    0x8(%rax),%rsi
lea    0xd9a(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0x38(%rbp),%rax
mov    %rax,-0x40(%rbp)
cmpq   $0x0,-0x40(%rbp)
je     1339 <main+0x1c9>
mov    -0x40(%rbp),%rax
mov    (%rax),%rax
mov    0x2d29(%rip),%rcx
cmp    (%rcx),%rax
jne    12dd <main+0x16d>
mov    -0x40(%rbp),%rax
mov    0x10(%rax),%rax
mov    %rax,-0x70(%rbp)
mov    -0x70(%rbp),%rax
mov    %rax,-0x48(%rbp)
movb   $0x34,-0x61(%rbp)
jmp    12f5 <main+0x185>
mov    -0x40(%rbp),%rax
mov    0x10(%rax),%rax
mov    %rax,-0x78(%rbp)
mov    -0x78(%rbp),%rax
mov    %rax,-0x48(%rbp)
movb   $0x36,-0x61(%rbp)
mov    -0x80(%rbp),%rdx
mov    -0x88(%rbp),%rax
mov    -0x40(%rbp),%rcx
mov    (%rcx),%rdi
mov    -0x48(%rbp),%rsi
mov    %eax,%ecx
call   1030 <inet_ntop@plt>
mov    -0x80(%rbp),%rdx
movsbl -0x61(%rbp),%esi
lea    0xd1f(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0x40(%rbp),%rax
mov    0x8(%rax),%rax
mov    %rax,-0x40(%rbp)
jmp    129e <main+0x12e>
mov    -0x38(%rbp),%rdi
call   1090 <freeaddrinfo@plt>
movl   $0x0,-0x4(%rbp)
movl   $0x1,-0x68(%rbp)
mov    -0x58(%rbp),%rax
mov    %rax,%rsp
mov    -0x4(%rbp),%eax
mov    %rbp,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
mov    %rsp,%rbp
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
sub    $0x38,%rsp
mov    %rsp,%r12
mov    0x2e5d(%rip),%rax
mov    (%rax),%r14d
mov    %rsp,%r13
lea    0xf(%r14),%rax
and    $0xfffffffffffffff0,%rax
sub    %rax,%r13
mov    %r13,%rsp
cmp    $0x2,%edi
jne    1217 <main+0xa7>
mov    %rsi,%r15
lea    -0x58(%rbp),%rbx
mov    %rbx,%rdi
xor    %esi,%esi
mov    $0x20,%edx
call   1060 <memset@plt>
mov    0x2e17(%rip),%rax
mov    (%rax),%rax
mov    %rax,-0x58(%rbp)
mov    0x2df1(%rip),%rax
mov    (%rax),%eax
mov    %eax,-0x40(%rbp)
mov    0x8(%r15),%rdi
lea    -0x30(%rbp),%rcx
xor    %esi,%esi
mov    %rbx,%rdx
call   1080 <getaddrinfo@plt>
test   %eax,%eax
je     1238 <main+0xc8>
mov    0x2dd7(%rip),%rcx
mov    (%rcx),%ebx
mov    %eax,%edi
call   1050 <gai_strerror@plt>
lea    0xe17(%rip),%rsi
mov    %ebx,%edi
mov    %rax,%rdx
xor    %eax,%eax
call   1070 <fprintf@plt>
mov    $0x2,%ebx
jmp    12b2 <main+0x142>
mov    0x2daa(%rip),%rax
mov    (%rax),%edi
lea    0xdd9(%rip),%rsi
xor    %eax,%eax
call   1070 <fprintf@plt>
mov    $0x1,%ebx
jmp    12b2 <main+0x142>
mov    0x8(%r15),%rsi
lea    0xde6(%rip),%rdi
xor    %ebx,%ebx
xor    %eax,%eax
call   1040 <printf@plt>
mov    -0x30(%rbp),%r15
test   %r15,%r15
je     12ab <main+0x13b>
mov    %r12,-0x38(%rbp)
lea    0xde0(%rip),%r12
mov    (%r15),%rdi
mov    0x10(%r15),%rsi
xor    %eax,%eax
mov    0x2d70(%rip),%rcx
cmp    (%rcx),%rdi
setne  %al
lea    (%rax,%rax,1),%ebx
add    $0x34,%ebx
mov    %r13,%rdx
mov    %r14d,%ecx
call   1030 <inet_ntop@plt>
mov    %r12,%rdi
mov    %ebx,%esi
mov    %r13,%rdx
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x8(%r15),%r15
test   %r15,%r15
jne    1260 <main+0xf0>
mov    -0x30(%rbp),%rdi
mov    -0x38(%rbp),%r12
xor    %ebx,%ebx
jmp    12ad <main+0x13d>
xor    %edi,%edi
call   1090 <freeaddrinfo@plt>
mov    %r12,%rsp
mov    %ebx,%eax
lea    -0x28(%rbp),%rsp
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
%struct.addrinfo = type { i64, %struct.addrinfo*, i64, i32 }
%struct.sockaddr_in = type { i32 }
%struct.sockaddr_in6 = type { i32 }
@INET6_ADDRSTRLEN = global i32 0
@stderr = global i32 0
@.str = [24 x i8] c"usage: showip hostname\0A\00"
@AF_UNSPEC = global i64 0
@SOCK_STREAM = global i32 0
@.str.1 = [17 x i8] c"getaddrinfo: %s\0A\00"
@.str.2 = [23 x i8] c"IP addresses for %s:\0A\0A\00"
@AF_INET = global i64 0
@.str.3 = [12 x i8] c" IPv%c: %s\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca %struct.addrinfo
%7 = alloca %struct.addrinfo*
%8 = alloca %struct.addrinfo*
%9 = alloca i8*
%10 = alloca i32
%11 = alloca i8*
%12 = alloca i64
%13 = alloca i8
%14 = alloca i32
%15 = alloca %struct.sockaddr_in*
%16 = alloca %struct.sockaddr_in6*
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%17 = load i32, i32* @INET6_ADDRSTRLEN
%18 = zext i32 %17 to i64
%19 = call i8* @llvm.stacksave()
store i8* %19, i8** %11
%20 = alloca i8, i64 %18
store i64 %18, i64* %12
%21 = load i32, i32* %4
%22 = icmp ne i32 %21, 2
br i1 %22, label %23, label %26
23: ; preds = %2
%24 = load i32, i32* @stderr
%25 = call i32 (i32, i8*, ...) @fprintf(i32 %24, i8* getelementptr inbounds ([24 x i8], [24 x i8]* @.str, i64 0, i64 0))
store i32 1, i32* %3
store i32 1, i32* %14
br label %89
26: ; preds = %2
%27 = call i32 @memset(%struct.addrinfo* %6, i32 0, i32 32)
%28 = load i64, i64* @AF_UNSPEC
%29 = getelementptr inbounds %struct.addrinfo, %struct.addrinfo* %6, i32 0, i32 0
store i64 %28, i64* %29
%30 = load i32, i32* @SOCK_STREAM
%31 = getelementptr inbounds %struct.addrinfo, %struct.addrinfo* %6, i32 0, i32 3
store i32 %30, i32* %31
%32 = load i8**, i8*** %5
%33 = getelementptr inbounds i8*, i8** %32, i64 1
%34 = load i8*, i8** %33
%35 = call i32 @getaddrinfo(i8* %34, i32* null, %struct.addrinfo* %6, %struct.addrinfo** %7)
store i32 %35, i32* %10
%36 = icmp ne i32 %35, 0
br i1 %36, label %37, label %42
37: ; preds = %26
%38 = load i32, i32* @stderr
%39 = load i32, i32* %10
%40 = call i8* @gai_strerror(i32 %39)
%41 = call i32 (i32, i8*, ...) @fprintf(i32 %38, i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.1, i64 0, i64 0), i8* %40)
store i32 2, i32* %3
store i32 1, i32* %14
br label %89
42: ; preds = %26
%43 = load i8**, i8*** %5
%44 = getelementptr inbounds i8*, i8** %43, i64 1
%45 = load i8*, i8** %44
%46 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.2, i64 0, i64 0), i8* %45)
%47 = load %struct.addrinfo*, %struct.addrinfo** %7
store %struct.addrinfo* %47, %struct.addrinfo** %8
br label %48
48: ; preds = %73, %42
%49 = load %struct.addrinfo*, %struct.addrinfo** %8
%50 = icmp ne %struct.addrinfo* %49, null
br i1 %50, label %51, label %86
51: ; preds = %48
%52 = load %struct.addrinfo*, %struct.addrinfo** %8
%53 = getelementptr inbounds %struct.addrinfo, %struct.addrinfo* %52, i32 0, i32 0
%54 = load i64, i64* %53
%55 = load i64, i64* @AF_INET
%56 = icmp eq i64 %54, %55
br i1 %56, label %57, label %65
57: ; preds = %51
%58 = load %struct.addrinfo*, %struct.addrinfo** %8
%59 = getelementptr inbounds %struct.addrinfo, %struct.addrinfo* %58, i32 0, i32 2
%60 = load i64, i64* %59
%61 = inttoptr i64 %60 to %struct.sockaddr_in*
store %struct.sockaddr_in* %61, %struct.sockaddr_in** %15
%62 = load %struct.sockaddr_in*, %struct.sockaddr_in** %15
%63 = getelementptr inbounds %struct.sockaddr_in, %struct.sockaddr_in* %62, i32 0, i32 0
%64 = bitcast i32* %63 to i8*
store i8* %64, i8** %9
store i8 52, i8* %13
br label %73
65: ; preds = %51
%66 = load %struct.addrinfo*, %struct.addrinfo** %8
%67 = getelementptr inbounds %struct.addrinfo, %struct.addrinfo* %66, i32 0, i32 2
%68 = load i64, i64* %67
%69 = inttoptr i64 %68 to %struct.sockaddr_in6*
store %struct.sockaddr_in6* %69, %struct.sockaddr_in6** %16
%70 = load %struct.sockaddr_in6*, %struct.sockaddr_in6** %16
%71 = getelementptr inbounds %struct.sockaddr_in6, %struct.sockaddr_in6* %70, i32 0, i32 0
%72 = bitcast i32* %71 to i8*
store i8* %72, i8** %9
store i8 54, i8* %13
br label %73
73: ; preds = %65, %57
%74 = load %struct.addrinfo*, %struct.addrinfo** %8
%75 = getelementptr inbounds %struct.addrinfo, %struct.addrinfo* %74, i32 0, i32 0
%76 = load i64, i64* %75
%77 = load i8*, i8** %9
%78 = trunc i64 %18 to i32
%79 = call i32 @inet_ntop(i64 %76, i8* %77, i8* %20, i32 %78)
%80 = load i8, i8* %13
%81 = sext i8 %80 to i32
%82 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.3, i64 0, i64 0), i32 %81, i8* %20)
%83 = load %struct.addrinfo*, %struct.addrinfo** %8
%84 = getelementptr inbounds %struct.addrinfo, %struct.addrinfo* %83, i32 0, i32 1
%85 = load %struct.addrinfo*, %struct.addrinfo** %84
store %struct.addrinfo* %85, %struct.addrinfo** %8
br label %48
86: ; preds = %48
%87 = load %struct.addrinfo*, %struct.addrinfo** %7
%88 = call i32 @freeaddrinfo(%struct.addrinfo* %87)
store i32 0, i32* %3
store i32 1, i32* %14
br label %89
89: ; preds = %86, %37, %23
%90 = load i8*, i8** %11
%91 = load i32, i32* %3
ret i32 %91
}

LLVM IR (-O2):
%struct.addrinfo = type { i64, %struct.addrinfo*, i64, i32 }
@INET6_ADDRSTRLEN = global i32 0
@stderr = global i32 0
@.str = [24 x i8] c"usage: showip hostname\0A\00"
@AF_UNSPEC = global i64 0
@SOCK_STREAM = global i32 0
@.str.1 = [17 x i8] c"getaddrinfo: %s\0A\00"
@.str.2 = [23 x i8] c"IP addresses for %s:\0A\0A\00"
@AF_INET = global i64 0
@.str.3 = [12 x i8] c" IPv%c: %s\0A\00"
define i32 @main(i32 %0, i8** nocapture %1) {
%3 = alloca %struct.addrinfo
%4 = alloca %struct.addrinfo*
%5 = bitcast %struct.addrinfo* %3 to i8*
%6 = bitcast %struct.addrinfo** %4 to i8*
%7 = load i32, i32* @INET6_ADDRSTRLEN
%8 = zext i32 %7 to i64
%9 = tail call i8* @llvm.stacksave()
%10 = alloca i8, i64 %8
%11 = icmp eq i32 %0, 2
br i1 %11, label %15, label %12
12: ; preds = %2
%13 = load i32, i32* @stderr
%14 = tail call i32 (i32, i8*, ...) @fprintf(i32 %13, i8* getelementptr inbounds ([24 x i8], [24 x i8]* @.str, i64 0, i64 0))
br label %54
15: ; preds = %2
%16 = call i32 @memset(%struct.addrinfo* %3, i32 0, i32 32)
%17 = load i64, i64* @AF_UNSPEC
%18 = getelementptr inbounds %struct.addrinfo, %struct.addrinfo* %3, i64 0, i32 0
store i64 %17, i64* %18
%19 = load i32, i32* @SOCK_STREAM
%20 = getelementptr inbounds %struct.addrinfo, %struct.addrinfo* %3, i64 0, i32 3
store i32 %19, i32* %20
%21 = getelementptr inbounds i8*, i8** %1, i64 1
%22 = load i8*, i8** %21
%23 = call i32 @getaddrinfo(i8* %22, i32* null, %struct.addrinfo* %3, %struct.addrinfo** %4)
%24 = icmp eq i32 %23, 0
br i1 %24, label %29, label %25
25: ; preds = %15
%26 = load i32, i32* @stderr
%27 = call i8* @gai_strerror(i32 %23)
%28 = call i32 (i32, i8*, ...) @fprintf(i32 %26, i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.1, i64 0, i64 0), i8* %27)
br label %54
29: ; preds = %15
%30 = load i8*, i8** %21
%31 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([23 x i8], [23 x i8]* @.str.2, i64 0, i64 0), i8* %30)
%32 = load %struct.addrinfo*, %struct.addrinfo** %4
%33 = icmp eq %struct.addrinfo* %32, null
br i1 %33, label %51, label %34
34: ; preds = %29, %34
%35 = phi %struct.addrinfo* [ %47, %34 ], [ %32, %29 ]
%36 = getelementptr inbounds %struct.addrinfo, %struct.addrinfo* %35, i64 0, i32 0
%37 = load i64, i64* %36
%38 = load i64, i64* @AF_INET
%39 = icmp eq i64 %37, %38
%40 = select i1 %39, i32 52, i32 54
%41 = getelementptr inbounds %struct.addrinfo, %struct.addrinfo* %35, i64 0, i32 2
%42 = load i64, i64* %41
%43 = inttoptr i64 %42 to i8*
%44 = call i32 @inet_ntop(i64 %37, i8* %43, i8* %10, i32 %7)
%45 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @.str.3, i64 0, i64 0), i32 %40, i8* %10)
%46 = getelementptr inbounds %struct.addrinfo, %struct.addrinfo* %35, i64 0, i32 1
%47 = load %struct.addrinfo*, %struct.addrinfo** %46
%48 = icmp eq %struct.addrinfo* %47, null
br i1 %48, label %49, label %34
49: ; preds = %34
%50 = load %struct.addrinfo*, %struct.addrinfo** %4
br label %51
51: ; preds = %49, %29
%52 = phi %struct.addrinfo* [ %50, %49 ], [ null, %29 ]
%53 = call i32 @freeaddrinfo(%struct.addrinfo* %52)
br label %54
54: ; preds = %51, %25, %12
%55 = phi i32 [ 1, %12 ], [ 2, %25 ], [ 0, %51 ]
ret i32 %55
}