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https://github.com/RGBCube/serenity
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Implement basic sys$kill() and add a /bin/kill
All it can do right now is send SIGKILL which just murders the target task.
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parent
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10 changed files with 117 additions and 9 deletions
1
Userland/.gitignore
vendored
1
Userland/.gitignore
vendored
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@ -14,3 +14,4 @@ uname
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clear
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tst
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mm
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kill
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@ -13,7 +13,8 @@ OBJS = \
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uname.o \
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clear.o \
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tst.o \
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mm.o
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mm.o \
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kill.o
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APPS = \
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id \
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@ -30,7 +31,8 @@ APPS = \
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uname \
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clear \
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tst \
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mm
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mm \
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kill
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ARCH_FLAGS =
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STANDARD_FLAGS = -std=c++17 -nostdinc++ -nostdlib
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@ -95,6 +97,9 @@ tst: tst.o
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mm: mm.o
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$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
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kill: kill.o
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$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
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.cpp.o:
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@echo "CXX $<"; $(CXX) $(CXXFLAGS) -o $@ -c $<
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37
Userland/kill.cpp
Normal file
37
Userland/kill.cpp
Normal file
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@ -0,0 +1,37 @@
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#include <LibC/unistd.h>
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#include <LibC/stdio.h>
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#include <LibC/signal.h>
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#include <AK/String.h>
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static unsigned parseUInt(const String& str, bool& ok)
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{
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unsigned value = 0;
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for (size_t i = 0; i < str.length(); ++i) {
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if (str[i] < '0' || str[i] > '9') {
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ok = false;
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return 0;
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}
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value = value * 10;
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value += str[i] - '0';
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}
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ok = true;
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return value;
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}
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int main(int argc, char** argv)
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{
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if (argc < 2) {
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printf("usage: kill <PID>\n");
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return 1;
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}
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bool ok;
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unsigned value = parseUInt(argv[1], ok);
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if (!ok) {
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printf("%s is not a valid PID\n", argv[1]);
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return 2;
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}
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kill((pid_t)value, SIGKILL);
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return 0;
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}
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