login/getlogin.s

   1         .text
   2         .p2align 4,,15
   3         .type   getlogin_fd0, @function
   4 getlogin_fd0:
   5         pushq   %rbx
   6         xorl    %edi, %edi
   7         movl    $512, %edx
   8         subq    $1296, %rsp
   9         leaq    784(%rsp), %rbx
  10         movq    %rbx, %rsi
  11         call    __ttyname_r
  12         testl   %eax, %eax
  13         jne     .L9
  14         call    __setutent
  15         leaq    5(%rbx), %rsi
  16         leaq    24(%rsp), %rdi
  17         movl    $32, %edx
  18         leaq    16(%rsp), %rbx
  19         call    strncpy
  20         leaq    8(%rsp), %rdx
  21         leaq    400(%rsp), %rsi
  22         movq    %rbx, %rdi
  23         call    __getutline_r
  24         testl   %eax, %eax
  25         jns     .L4
  26         movq    __libc_errno@gottpoff(%rip), %rax
  27         xorl    %ebx, %ebx
  28         cmpl    $3, %fs:(%rax)
  29         jne     .L5
  30         movl    $2, %fs:(%rax)
  31         jmp     .L5
  32         .p2align 4,,10
  33         .p2align 3
  34 .L4:
  35         movq    8(%rsp), %rax
  36         leaq    name(%rip), %rdi
  37         movl    $32, %edx
  38         leaq    name(%rip), %rbx
  39         leaq    44(%rax), %rsi
  40         call    strncpy
  41         movb    $0, 32+name(%rip)
  42 .L5:
  43         call    __endutent
  44         addq    $1296, %rsp
  45         movq    %rbx, %rax
  46         popq    %rbx
  47         ret
  48         .p2align 4,,10
  49         .p2align 3
  50 .L9:
  51         movq    __libc_errno@gottpoff(%rip), %rdx
  52         xorl    %ebx, %ebx
  53         movl    %eax, %fs:(%rdx)
  54         addq    $1296, %rsp
  55         movq    %rbx, %rax
  56         popq    %rbx
  57         ret
  58         .size   getlogin_fd0, .-getlogin_fd0
  59         .p2align 4,,15
  60         .globl  getlogin
  61         .type   getlogin, @function
  62 getlogin:
  63         leaq    name(%rip), %rdi
  64         subq    $8, %rsp
  65         movl    $33, %esi
  66         call    __getlogin_r_loginuid
  67         testl   %eax, %eax
  68         js      .L17
  69         leaq    name(%rip), %rax
  70         movl    $0, %edx
  71         cmovne  %rdx, %rax
  72         addq    $8, %rsp
  73         ret
  74         .p2align 4,,10
  75         .p2align 3
  76 .L17:
  77         addq    $8, %rsp
  78         jmp     getlogin_fd0
  79         .size   getlogin, .-getlogin
  80         .local  name
  81         .comm   name,33,32
  82         .hidden __getlogin_r_loginuid
  83         .hidden __endutent
  84         .hidden __getutline_r
  85         .hidden strncpy
  86         .hidden __setutent
  87         .hidden __ttyname_r