diff options
Diffstat (limited to 'Userland')
| -rw-r--r-- | Userland/.gitignore | 1 | ||||
| -rw-r--r-- | Userland/Makefile | 9 | ||||
| -rw-r--r-- | Userland/ps.cpp | 25 |
3 files changed, 33 insertions, 2 deletions
diff --git a/Userland/.gitignore b/Userland/.gitignore index 89dadc36dd..27529b9b9b 100644 --- a/Userland/.gitignore +++ b/Userland/.gitignore @@ -1,3 +1,4 @@ id sh +ps *.o diff --git a/Userland/Makefile b/Userland/Makefile index 0266a2edd0..ec3fddd381 100644 --- a/Userland/Makefile +++ b/Userland/Makefile @@ -1,10 +1,12 @@ OBJS = \ id.o \ - sh.o + sh.o \ + ps.o APPS = \ id \ - sh + sh \ + ps ARCH_FLAGS = STANDARD_FLAGS = -std=c++17 -nostdinc++ -nostdlib @@ -30,6 +32,9 @@ id: id.o sh: sh.o $(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a +ps: ps.o + $(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a + .cpp.o: @echo "CXX $<"; $(CXX) $(CXXFLAGS) -o $@ -c $< diff --git a/Userland/ps.cpp b/Userland/ps.cpp new file mode 100644 index 0000000000..5b620d96e4 --- /dev/null +++ b/Userland/ps.cpp @@ -0,0 +1,25 @@ +#include <LibC/stdio.h> +#include <LibC/unistd.h> + +int main(int c, char** v) +{ + int fd = open("/proc/summary"); + if (fd == -1) { + printf("failed to open /proc/summary :(\n"); + return 1; + } + for (;;) { + char buf[16]; + ssize_t nread = read(fd, buf, sizeof(buf)); + if (nread == 0) + break; + if (nread < 0) { + printf("failed to read :(\n"); + return 2; + } + for (ssize_t i = 0; i < nread; ++i) { + putchar(buf[i]); + } + } + return 0; +} |