Skip to content

Commit

Permalink
Add command parameter
Browse files Browse the repository at this point in the history
  • Loading branch information
chenzhch committed Jun 28, 2024
1 parent eeb9459 commit 6fdde0f
Show file tree
Hide file tree
Showing 3 changed files with 70 additions and 73 deletions.
8 changes: 7 additions & 1 deletion README.md
View file
Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,7 @@ At present, the program has practical applications in ```AIX```, ```UNIX```, ```
### User manual
- Generate C code command

```shellc command inputfile [-t] [-s] [-f fix-format] [-e fix-file] [-b 8|16|32|64]```
```shellc command inputfile [-t] [-s] [-f fix-format] [-e fix-file] [-p parameter] [-b 8|16|32|64]```

command： Execute script commands, such ```sh```,```perl```,```python```,```node```,```ruby```,```Rscript```,```php```, etc.

Expand All @@ -37,6 +37,8 @@ At present, the program has practical applications in ```AIX```, ```UNIX```, ```

-e option： Fix parameter 0 value by custom external file.

-p option： Command parameter, such as ```busybox shell``` using by ```shellc busybox example.sh -p sh```.

-b option： Operating system bits setting.

- Code pattern differences
Expand Down Expand Up @@ -82,6 +84,10 @@ macOS 13|lldb|NO

### History

- v1.3 2024-06-28

Add command parameter

- v1.2 2024-06-22

Add operating system bits setting
Expand Down
126 changes: 55 additions & 71 deletions shellc.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@
* Function: Convert script into C code
* Author: ChenZhongChao
* Date: 2023-12-25
* Version: 1.2
* Version: 1.3
* Github: https://github.com/chenzhch/shellc.git
*/

Expand Down Expand Up @@ -246,7 +246,11 @@ static const char *fourth[] = {
" }",
" free(str);",
" memset(dev, 0, sizeof(dev));",
" sprintf(dev, \"/dev/fd/%d\", file[0]);",
" sprintf(dev, \"/proc/self/fd/%d\", file[0]);",
" if (access(dev, R_OK)) {",
" sprintf(dev, \"/dev/fd/%d\", file[0]);",
" }",
" args = (char **) malloc((argc + 8) * sizeof(char *));",
0
};

Expand All @@ -262,13 +266,18 @@ static const char *fourth_safe[] = {
" name = malloc((size_t) length);",
" if (which(command, name)) {",
" return(1);",
" }",
" pipe = popen(name, \"w\");",
" }",
0
};

static const char *fourth_end[] = {
" free(name);",
" pipe = popen(str, \"w\");",
" if(pipe == NULL) {",
" fprintf(stderr, \"Error: Command %s not found\\n\", command);",
" perror(\"Failed to popen\");",
" return(1);",
" }",
" free(name);",
" free(str);",
"",
0
};
Expand Down Expand Up @@ -298,15 +307,7 @@ static const char *sh_start[] = {
0
};

static const char *fifth[] = {
" args = (char **) malloc((argc + 8) * sizeof(char *));",
" j = 0;",
" if (!strcmp(command, \"node\")) {",
" args[j++] = strdup(command);",
" args[j++] = strdup(\"--preserve-symlinks-main\");",
" } else {",
" args[j++] = strdup(argv[0]);",
" }",
static const char *fifth[] = {
" args[j++] = strdup(dev);",
" for (i = 1; i < argc; i++) {",
" args[j++] = strdup(argv[i]);",
Expand Down Expand Up @@ -537,56 +538,13 @@ void function(int order, int x, int y, char *str)
}
}

/*Which command*/
int which(const char *command)
{
char *name;
int i, j, len;
char *path = getenv("PATH");

if (command[0] == '/' || (command[0] == '.')) {
if (access(command, X_OK) == 0) {
return(0);
}
fprintf(stderr, "Error: Command %s not found\n", command);
return(1);
}

if (!path) {
fprintf(stderr, "PATH environment variable not set\n");
return(1);
}
len = strlen(path) + strlen(command) + 8;
name = (char *) malloc(len);
memset(name, 0, (size_t) len);
j = 0;
len = strlen(path);
for (i = 0; i <= len; i++) {
if(i == len || path[i] == ':') {
strcat(name, "/");
strcat(name, command);
if (access(name, X_OK) == 0) {
free(name);
return(0);
}
memset(name, 0, (size_t) len);
j = 0;
} else {
name[j++] = path[i];
}
}
free(name);
fprintf(stderr, "Error: Command %s not found\n", command);
return(1);
}

int main(int argc, char **argv)
{
FILE *in, *out, *fix_file, *self_file;
int code_length, obscure_length, length, pos;
int fix_pos = -1;
char *code_text, *obscure_text, *text;
char *bitmap, *inname = NULL, *outname, *command = NULL;
char *bitmap, *inname = NULL, *outname, *command = NULL, *parameter = NULL;
char *fix_format = NULL, *file_name = NULL, *bit = NULL;
char str[1024];
long result, offset1, offset2;
Expand All @@ -598,13 +556,14 @@ int main(int argc, char **argv)
char algorithm[32][17];
int i, j, k, loop, mode;
int trace_flag = 0, fix_flag = 0, input_flag = 0, command_flag = 0, file_flag = 0;
int self_flag = 0, safe_flag = 0, bit_flag = 0;
int self_flag = 0, safe_flag = 0, bit_flag = 0, para_flag = 0;
struct utsname sysinfo;
struct stat status;
char *self_name = "/proc/self/status";
char *option = "f:e:b:tsh";
char *option = "f:e:b:p:tsh";
char **args = (char **) malloc((argc + 1) * sizeof(char *));
char *usage = "command inputfile [-t] [-s] [-f fix-format] [-e fix-file] [-b 8|16|32|64]";
char *token;
char *usage = "command inputfile [-t] [-s] [-f fix-format] [-e fix-file] [-p parameter] [-b 8|16|32|64]";

j = 0;
args[j++] = strdup(argv[0]);
Expand Down Expand Up @@ -636,13 +595,14 @@ int main(int argc, char **argv)
switch (opt) {
case 'h':
printf("%s: Convert script into C code\n", argv[0]);
printf("Usage: %s %s", argv[0], usage);
printf("Usage: %s %s\n", argv[0], usage);
printf("Option: \n");
printf(" -t Make traceable binary\n");
printf(" -s Using safe mode\n");
printf(" -f Fix arguments format\n");
printf(" -e Fix arguments 0 by external file\n");
printf(" -b Operating system bits\n");
printf(" -p Command parameter\n");
printf(" -h Display help and return\n");
return(0);
case 't':
Expand All @@ -663,6 +623,10 @@ int main(int argc, char **argv)
bit_flag++;
bit = strdup(optarg);
break;
case 'p':
para_flag++;
parameter = strdup(optarg);
break;
case '?':
return(1);
default:
Expand All @@ -682,17 +646,14 @@ int main(int argc, char **argv)
}

if (input_flag != 1 || command_flag != 1 || fix_flag > 1 || trace_flag > 1
|| safe_flag > 1 || file_flag > 1 || bit_flag>1
|| safe_flag > 1 || file_flag > 1 || bit_flag > 1 || para_flag > 1
|| (bit_flag && strcmp(bit, "8") && strcmp(bit, "16") && strcmp(bit, "32") && strcmp(bit,"64"))) {
fprintf(stderr, "Usage: %s %s\n", argv[0], usage);
return(1);
}

/*Running environment check*/
if (which(command)) {
return(1);
}


if (uname(&sysinfo)) {
perror("Failed to uname");
return(1);
Expand Down Expand Up @@ -728,7 +689,7 @@ int main(int argc, char **argv)
fprintf(stderr, "Error: fix file %s is not exists\n", fix_format);
return(1);
}

/*Self file format*/
if (access(self_name, R_OK) == 0) {
self_file = fopen(self_name, "r");
Expand Down Expand Up @@ -983,11 +944,23 @@ int main(int argc, char **argv)
i = 0;
if (safe_flag) {
while (fourth_safe[i]) fprintf(out, "%s\n", fourth_safe[i++]);
if (para_flag) {
fprintf(out, " length = strlen(name) + strlen(\"%s\") + 2;\n", parameter);
fprintf(out, " str = malloc(length);\n");
fprintf(out, " memset(str, 0, length);\n");
fprintf(out, " strcat(str, name);\n");
fprintf(out, " strcat(str, \" \");\n");
fprintf(out, " strcat(str, \"%s\");\n", parameter);
} else {
fprintf(out, " str = strdup(name);\n");
}
i = 0;
while (fourth_end[i]) fprintf(out, "%s\n", fourth_end[i++]);
i = 0;
if (!fix_flag || !arg_code[fix_pos][0]) {
while(sh_start[i]) fprintf(out, "%s\n", sh_start[i++]);
}
} else {
} else {
while (fourth[i]) fprintf(out, "%s\n", fourth[i++]);
}

Expand Down Expand Up @@ -1110,7 +1083,18 @@ int main(int argc, char **argv)
} else {
if (fix_format != NULL && !strcmp(fix_format, "PHP")) {
fprintf(out, " write(file[1], \"//\", 2);\n");
}
}
fprintf(out, "%s\n", " j = 0;");
if (para_flag) {
fprintf(out, "%s\n", " args[j++] = strdup(command);");
fprintf(out, " args[j++] = strdup(\"%s\");\n", parameter);
} else if (!strcmp(command, "node")) {
fprintf(out, "%s\n", " args[j++] = strdup(command);");
fprintf(out, "%s\n", " args[j++] = strdup(\"--preserve-symlinks-main\");");
} else {
fprintf(out, "%s\n", " args[j++] = strdup(argv[0]);");
}
i = 0 ;
while (fifth[i]) fprintf(out, "%s\n", fifth[i++]);
}

Expand Down
9 changes: 8 additions & 1 deletion 说明.md
View file
Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,7 @@ shellc除了解决```shc```存在的问题外，还增加了代码混淆、随
### 使用手册
- 生成C代码命令

```shellc command inputfile [-t] [-s] [-f fix-format] [-e fix-file] [-b 8|16|32|64]```
```shellc command inputfile [-t] [-s] [-f fix-format] [-e fix-file] [-p parameter] [-b 8|16|32|64]```

command： 执行脚本的命令，如 ```sh```、```perl```、```python```、```node```、```ruby```、```Rscript```、```php``` 等。

Expand All @@ -38,7 +38,10 @@ shellc除了解决```shc```存在的问题外，还增加了代码混淆、随

-e 选项： 使用外部文件修复参数0值

-p 选项： 命令参数，如```busybox shell```使用```shellc busybox example.sh -p sh```

-b 选项： 操作系统位数设置


- 代码模式区别

Expand Down Expand Up @@ -83,6 +86,10 @@ macOS 13|lldb|不支持

### 修改记录

- v1.3 2024-06-28

增加命令参数支持

- v1.2 2024-06-22

增加操作系统位数设置功能
Expand Down

0 comments on commit 6fdde0f

Please sign in to comment.