mirror of
https://github.com/RGBCube/serenity
synced 2025-07-26 01:37:35 +00:00
Userland: Move command-line utilities to Userland/Utilities/
This commit is contained in:
parent
c4e2fd8123
commit
ececac65c2
142 changed files with 58 additions and 58 deletions
119
Userland/Utilities/syscall.cpp
Normal file
119
Userland/Utilities/syscall.cpp
Normal file
|
@ -0,0 +1,119 @@
|
|||
/*
|
||||
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
||||
* 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.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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.
|
||||
*/
|
||||
|
||||
#include <Kernel/API/Syscall.h>
|
||||
#include <errno.h>
|
||||
#include <getopt.h>
|
||||
#include <stdint.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#if !defined __ENUMERATE_SYSCALL
|
||||
# define __ENUMERATE_SYSCALL(x) SC_##x,
|
||||
#endif
|
||||
|
||||
#define SC_NARG 4
|
||||
|
||||
Syscall::Function syscall_table[] = {
|
||||
ENUMERATE_SYSCALLS(__ENUMERATE_SYSCALL)
|
||||
};
|
||||
|
||||
FlatPtr arg[SC_NARG];
|
||||
char buf[BUFSIZ];
|
||||
|
||||
FlatPtr parse(char* s);
|
||||
|
||||
int main(int argc, char** argv)
|
||||
{
|
||||
int oflag;
|
||||
int opt;
|
||||
while ((opt = getopt(argc, argv, "olh")) != -1) {
|
||||
switch (opt) {
|
||||
case 'o':
|
||||
oflag = 1;
|
||||
break;
|
||||
case 'l':
|
||||
for (auto sc : syscall_table) {
|
||||
fprintf(stdout, "%s ", Syscall::to_string(sc));
|
||||
}
|
||||
return EXIT_SUCCESS;
|
||||
case 'h':
|
||||
fprintf(stderr, "usage: \tsyscall [-o] [-l] [-h] <syscall-name> <args...> [buf==BUFSIZ buffer]\n");
|
||||
fprintf(stderr, "\tsyscall write 1 hello 5\n");
|
||||
fprintf(stderr, "\tsyscall -o read 0 buf 5\n");
|
||||
fprintf(stderr, "\tsyscall sleep 3\n");
|
||||
break;
|
||||
default:
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
}
|
||||
|
||||
if (optind >= argc) {
|
||||
fprintf(stderr, "No entry specified\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
for (int i = 0; i < argc - optind; i++) {
|
||||
arg[i] = parse(argv[i + optind]);
|
||||
}
|
||||
|
||||
for (auto sc : syscall_table) {
|
||||
if (strcmp(Syscall::to_string(sc), (char*)arg[0]) == 0) {
|
||||
int rc = syscall(sc, arg[1], arg[2], arg[3]);
|
||||
if (rc == -1) {
|
||||
perror("syscall");
|
||||
} else {
|
||||
if (oflag)
|
||||
fwrite(buf, 1, sizeof(buf), stdout);
|
||||
}
|
||||
|
||||
fprintf(stderr, "Syscall return: %d\n", rc);
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
fprintf(stderr, "Invalid syscall entry %s\n", (char*)arg[0]);
|
||||
return -1;
|
||||
}
|
||||
|
||||
FlatPtr parse(char* s)
|
||||
{
|
||||
char* t;
|
||||
FlatPtr l;
|
||||
|
||||
if (strcmp(s, "buf") == 0) {
|
||||
return (FlatPtr)buf;
|
||||
}
|
||||
|
||||
l = strtoul(s, &t, 0);
|
||||
if (t > s && *t == 0) {
|
||||
return l;
|
||||
}
|
||||
|
||||
return (FlatPtr)s;
|
||||
}
|
Loading…
Add table
Add a link
Reference in a new issue