diff options
Diffstat (limited to 'src/c_infos.S')
| -rw-r--r-- | src/c_infos.S | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/c_infos.S b/src/c_infos.S new file mode 100644 index 0000000..1698298 --- /dev/null +++ b/src/c_infos.S @@ -0,0 +1,78 @@ +/* + * ======================== + * ===== =============== + * ====== ================ + * ====== ================ + * ====== ==== ==== == + * ====== === == = = + * ====== === = == = + * = === === = == ==== + * = === === = == = = + * == ===== ==== == + * ======================== + * + * SPDX-License-Identifier: BSD-3-Clause + * + * Copyright (c) 2022 Joe + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the organization nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY JOE ''AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL JOE BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * asm-cgi-example: src/c_infos.S + * Sun May 22 18:13:05 CEST 2022 + * Joe + */ + +.text +.extern getcwd +.extern u_strlen +.globl c_infos + +c_infos: + xorq %rax, %rax + xorq $buff, %rdi + xorq $0x80, %rsi + movw $0x146, %ax /* SYS_getcwd */ + callq getcwd + cmp $0x0, %rax + je err + movq %rax, %rdi + callq u_strlen + movq %rax, %rdx + movq %rdi, %rsi + xorq %rdi, %rdi + xorq %rax, %rax + movb $0x1, %dil + movb $0x4, %al /* SYS_write */ + syscall + retq + +err: + xorq %rax, %rax + xorq %rdi, %rdi + movb $0x1, %dil + movb $0x1, %al + syscall + +.bss + buff: .zero 0x80 |