Built your very own shell, Minishell! Explore executing commands, managing history, and controlling inputs and outputs. Dive into handling processes and files while creating a user-friendly shell interface. Get hands-on with shell scripting in a fun and accessible way with Minishell (DONT PANIC SHELL)!
/workspaces/42-minishell ❯ cat << "$US"E"R"
Tokens:
Type: 0, Value: cat
Type: 15, Value:
Type: 3, Value: <<
Type: 15, Value:
Type: 11, Value: "
Type: 0, Value: $US
Type: 11, Value: "
Type: 0, Value: E
Type: 11, Value: "
Type: 0, Value: R
Type: 11, Value: "
Tokens:
Type: 0, Value: cat
Type: 15, Value:
Type: 3, Value: <<
Type: 15, Value:
Type: 11, Value: "
Type: 0, Value:
Type: 11, Value: "
Type: 0, Value: E
Type: 11, Value: "
Type: 0, Value: R
Type: 11, Value: "
Tokens:
Type: 0, Value: cat
Type: 15, Value:
Type: 3, Value: <<
Type: 15, Value:
Type: 11, Value: "
Type: 0, Value:
Type: 11, Value: "
Type: 0, Value: E
Type: 11, Value: "
Type: 0, Value: R
Type: 11, Value: "
=================================================================
==98711==ERROR: AddressSanitizer: heap-use-after-free on address 0x603000009b50 at pc 0x563b262e14d1 bp 0x7fff67851f30 sp 0x7fff67851f28
READ of size 4 at 0x603000009b50 thread T0
#0 0x563b262e14d0 in get_after_file src/input_parsing/rearrange_tokens.c:53
#1 0x563b262e1cdc in rearrange_tokens src/input_parsing/rearrange_tokens.c:128
#2 0x563b262d8882 in process_input src/prompt/prompt.c:23
#3 0x563b262d8c56 in ft_execute_input src/prompt/prompt.c:51
#4 0x563b262d8c56 in show_prompt src/prompt/prompt.c:91
#5 0x563b262d6623 in main src/main.c:42
#6 0x7f99af607d09 in __libc_start_main ../csu/libc-start.c:308
#7 0x563b262d6359 in _start (/workspaces/42-minishell/minishell+0x4359)
0x603000009b50 is located 0 bytes inside of 32-byte region [0x603000009b50,0x603000009b70)
freed by thread T0 here:
#0 0x7f99af8b8b6f in __interceptor_free ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:123
#1 0x563b262e12a0 in get_file src/input_parsing/rearrange_tokens.c:43
#2 0x563b262e8fbf (/workspaces/42-minishell/minishell+0x16fbf)
previously allocated by thread T0 here:
#0 0x7f99af8b8e8f in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cpp:145
#1 0x563b262dc0ff in create_token src/input_parsing/token_utils.c:32
SUMMARY: AddressSanitizer: heap-use-after-free src/input_parsing/rearrange_tokens.c:53 in get_after_file
Shadow bytes around the buggy address:
0x0c067fff9310: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
0x0c067fff9320: fa fa fd fd fd fa fa fa fd fd fd fd fa fa 00 00
0x0c067fff9330: 00 07 fa fa fd fd fd fa fa fa fd fd fd fa fa fa
0x0c067fff9340: fd fd fd fa fa fa 00 00 00 00 fa fa 00 00 00 00
0x0c067fff9350: fa fa 00 00 00 00 fa fa 00 00 00 00 fa fa fd fd
=>0x0c067fff9360: fd fd fa fa 00 00 00 00 fa fa[fd]fd fd fd fa fa
0x0c067fff9370: fd fd fd fd fa fa fd fd fd fd fa fa fd fd fd fd
0x0c067fff9380: fa fa fd fd fd fd fa fa fd fd fd fa fa fa fd fd
0x0c067fff9390: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
0x0c067fff93a0: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
0x0c067fff93b0: fa fa fd fd fd fd fa fa fd fd fd fd fa fa fd fd
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
Shadow gap: cc
==98711==ABORTIN