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Kernel+Userland: Add the rename() syscall along with a basic /bin/mv.

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This commit is contained in:
Andreas Kling 2019-04-07 23:35:26 +02:00
parent 71b6436552
commit 37ae00a4dd
11 changed files with 99 additions and 2 deletions
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1
Userland/.gitignore vendored
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@ -42,3 +42,4 @@ uc
tc
host
qs
mv

5
Userland/Makefile
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@ -38,6 +38,7 @@ OBJS = \
tc.o \
host.o \
qs.o \
mv.o \
rm.o
APPS = \
@ -81,6 +82,7 @@ APPS = \
tc \
host \
qs \
mv \
rm
ARCH_FLAGS =
@ -223,6 +225,9 @@ host: host.o
qs: qs.o
$(LD) -o $@ $(LDFLAGS) -L../LibGUI $< -lgui -lc
mv: mv.o
$(LD) -o $@ $(LDFLAGS) -L../LibGUI $< -lgui -lc
.cpp.o:
@echo "CXX $<"; $(CXX) $(CXXFLAGS) -o $@ -c $<

32
Userland/mv.cpp Normal file
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@ -0,0 +1,32 @@
#include <stdio.h>
#include <unistd.h>
#include <sys/stat.h>
#include <AK/AKString.h>
#include <AK/FileSystemPath.h>
int main(int argc, char** argv)
{
if (argc != 3) {
printf("usage: mv <old-path> <new-path>\n");
return 1;
}
String old_path = argv[1];
String new_path = argv[2];
struct stat st;
int rc = lstat(new_path.characters(), &st);
if (rc == 0) {
if (S_ISDIR(st.st_mode)) {
auto old_basename = FileSystemPath(old_path).basename();
new_path = String::format("%s/%s", new_path.characters(), old_basename.characters());
}
}
rc = rename(old_path.characters(), new_path.characters());
if (rc < 0) {
perror("rename");
return 1;
}
return 0;
}