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userspace/apps/sys: add uname command

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Signed-off-by: EnderIce2 <enderice2@protonmail.com>
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EnderIce2 2025-02-12 02:50:27 +02:00
parent 8f7938a1e5
commit a1b040360c
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2 changed files with 152 additions and 0 deletions
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33
Userspace/apps/sys/uname/Makefile Normal file
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default:
$(error Do not run this Makefile directly!)
S_SOURCES = $(shell find ./ -type f -name '*.S')
C_SOURCES = $(shell find ./ -type f -name '*.c')
CXX_SOURCES = $(shell find ./ -type f -name '*.cpp')
OBJ = $(S_SOURCES:.S=.o) $(C_SOURCES:.c=.o) $(CXX_SOURCES:.cpp=.o)
FILENAME = $(notdir $(shell pwd))
WARNCFLAG = -Wall -Wextra
build: $(FILENAME).elf
cp $(FILENAME).elf $(WORKSPACE_DIR)/out/bin/$(FILENAME)
$(FILENAME).elf: $(OBJ)
$(info Linking $@)
$(CC) $(LDFLAGS) $(SYSROOT) $(OBJ) -o $@
%.o: %.c $(HEADERS)
$(info Compiling $<)
$(CC) $(CFLAGS) $(WARNCFLAG) -std=c17 -c $< -o $@
%.o: %.cpp $(HEADERS)
$(info Compiling $<)
$(CXX) $(CFLAGS) $(WARNCFLAG) -std=c++20 -fexceptions -c $< -o $@ -fno-rtti
%.o: %.S
$(info Compiling $<)
$(AS) -o $@ $<
clean:
rm -f $(OBJ) $(FILENAME).elf

119
Userspace/apps/sys/uname/uname.c Normal file
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/*
This file is part of Fennix Userspace.
Fennix Userspace is free software: you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
Fennix Userspace is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Fennix Userspace. If not, see <https://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <sys/utsname.h>
#include <string.h>
#include <stdlib.h>
#include <stdbool.h>
void print_usage()
{
printf("Usage: uname [OPTION]...\n");
printf("Display specific system information. With no OPTION, defaults to -s.\n\n");
printf(" -a, --all display all information, in the following order,\n");
printf(" except omit -p and -i if unknown:\n");
printf(" -s, --kernel-name display the kernel name\n");
printf(" -n, --nodename display the network node hostname\n");
printf(" -r, --kernel-release display the kernel release\n");
printf(" -v, --kernel-version display the kernel version\n");
printf(" -m, --machine display the machine hardware name\n");
printf(" -p, --processor display the processor type (non-portable)\n");
printf(" -i, --hardware-platform display the hardware platform (non-portable)\n");
printf(" -o, --operating-system display the operating system\n");
printf(" --help show this help message and exit\n");
}
int main(int argc, char *argv[])
{
struct utsname buffer;
if (uname(&buffer) != 0)
{
perror("uname");
exit(EXIT_FAILURE);
}
bool print_all = false;
bool print_kernel_name = false;
bool print_nodename = false;
bool print_kernel_release = false;
bool print_kernel_version = false;
bool print_machine = false;
bool print_processor = false;
bool print_hardware_platform = false;
bool print_operating_system = false;
if (argc == 1)
print_kernel_name = true;
else
{
for (int i = 1; i < argc; i++)
{
if (strcmp(argv[i], "-a") == 0 || strcmp(argv[i], "--all") == 0)
{
print_all = true;
break;
}
else if (strcmp(argv[i], "-s") == 0 || strcmp(argv[i], "--kernel-name") == 0)
print_kernel_name = true;
else if (strcmp(argv[i], "-n") == 0 || strcmp(argv[i], "--nodename") == 0)
print_nodename = true;
else if (strcmp(argv[i], "-r") == 0 || strcmp(argv[i], "--kernel-release") == 0)
print_kernel_release = true;
else if (strcmp(argv[i], "-v") == 0 || strcmp(argv[i], "--kernel-version") == 0)
print_kernel_version = true;
else if (strcmp(argv[i], "-m") == 0 || strcmp(argv[i], "--machine") == 0)
print_machine = true;
else if (strcmp(argv[i], "-p") == 0 || strcmp(argv[i], "--processor") == 0)
print_processor = true;
else if (strcmp(argv[i], "-i") == 0 || strcmp(argv[i], "--hardware-platform") == 0)
print_hardware_platform = true;
else if (strcmp(argv[i], "-o") == 0 || strcmp(argv[i], "--operating-system") == 0)
print_operating_system = true;
else if (strcmp(argv[i], "--help") == 0)
{
print_usage();
exit(EXIT_SUCCESS);
}
else
{
fprintf(stderr, "uname: invalid option -- '%s'\n", argv[i]);
print_usage();
exit(EXIT_FAILURE);
}
}
}
if (print_all || print_kernel_name)
printf("%s ", buffer.sysname);
if (print_all || print_nodename)
printf("%s ", buffer.nodename);
if (print_all || print_kernel_release)
printf("%s ", buffer.release);
if (print_all || print_kernel_version)
printf("%s ", buffer.version);
if (print_all || print_machine)
printf("%s ", buffer.machine);
if (print_all || print_processor)
printf("%s ", buffer.machine); /* FIXME */
if (print_all || print_hardware_platform)
printf("%s ", buffer.machine); /* FIXME */
if (print_all || print_operating_system)
printf("%s ", buffer.sysname); /* FIXME */
printf("\n");
return 0;
}