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Userland: Add a simple /bin/stat program.

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This commit is contained in:
Andreas Kling 2019-02-27 21:45:06 +01:00
parent 02bfbb712a
commit dda9b9ab1b
4 changed files with 101 additions and 0 deletions
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1
Kernel/sync.sh
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@ -72,6 +72,7 @@ cp -v ../Userland/ln mnt/bin/ln
cp -v ../Userland/df mnt/bin/df cp -v ../Userland/df mnt/bin/df
cp -v ../Userland/su mnt/bin/su cp -v ../Userland/su mnt/bin/su
cp -v ../Userland/env mnt/bin/env cp -v ../Userland/env mnt/bin/env
cp -v ../Userland/stat mnt/bin/stat
chmod 4755 mnt/bin/su chmod 4755 mnt/bin/su
cp -v ../Applications/Terminal/Terminal mnt/bin/Terminal cp -v ../Applications/Terminal/Terminal mnt/bin/Terminal
cp -v ../Applications/FontEditor/FontEditor mnt/bin/FontEditor cp -v ../Applications/FontEditor/FontEditor mnt/bin/FontEditor

1
Userland/.gitignore vendored
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@ -36,3 +36,4 @@ df
su su
env env
chown chown
stat

5
Userland/Makefile
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@ -32,6 +32,7 @@ OBJS = \
ln.o \ ln.o \
su.o \ su.o \
env.o \ env.o \
stat.o \
rm.o rm.o
APPS = \ APPS = \
@ -69,6 +70,7 @@ APPS = \
df \ df \
su \ su \
env \ env \
stat \
rm rm
ARCH_FLAGS = ARCH_FLAGS =
@ -193,6 +195,9 @@ su: su.o
env: env.o env: env.o
$(LD) -o $@ $(LDFLAGS) $< -lc $(LD) -o $@ $(LDFLAGS) $< -lc
stat: stat.o
$(LD) -o $@ $(LDFLAGS) $< -lc
.cpp.o: .cpp.o:
@echo "CXX $<"; $(CXX) $(CXXFLAGS) -o $@ -c $< @echo "CXX $<"; $(CXX) $(CXXFLAGS) -o $@ -c $<

94
Userland/stat.cpp Normal file
View file

@ -0,0 +1,94 @@
#include <stdio.h>
#include <unistd.h>
#include <time.h>
#include <pwd.h>
#include <grp.h>
#include <sys/stat.h>
int main(int argc, char** argv)
{
if (argc == 1) {
printf("stat <file>\n");
return 1;
}
struct stat st;
int rc = lstat(argv[1], &st);
if (rc < 0) {
perror("lstat");
return 1;
}
printf(" File: %s\n", argv[1]);
printf(" Inode: %u\n", st.st_ino);
if (S_ISCHR(st.st_mode) || S_ISBLK(st.st_mode))
printf(" Device: %u,%u\n", major(st.st_rdev), minor(st.st_rdev));
else
printf(" Size: %u\n", st.st_size);
printf(" Links: %u\n", st.st_nlink);
printf(" Blocks: %u\n", st.st_blocks);
printf(" UID: %u", st.st_uid);
if (auto* pwd = getpwuid(st.st_uid)) {
printf(" (%s)", pwd->pw_name);
}
printf("\n");
printf(" GID: %u", st.st_gid);
if (auto* grp = getgrgid(st.st_gid)) {
printf(" (%s)", grp->gr_name);
}
printf("\n");
printf(" Mode: (%o/", st.st_mode);
if (S_ISDIR(st.st_mode))
printf("d");
else if (S_ISLNK(st.st_mode))
printf("l");
else if (S_ISBLK(st.st_mode))
printf("b");
else if (S_ISCHR(st.st_mode))
printf("c");
else if (S_ISFIFO(st.st_mode))
printf("f");
else if (S_ISSOCK(st.st_mode))
printf("s");
else if (S_ISREG(st.st_mode))
printf("-");
else
printf("?");
printf("%c%c%c%c%c%c%c%c",
st.st_mode & S_IRUSR ? 'r' : '-',
st.st_mode & S_IWUSR ? 'w' : '-',
st.st_mode & S_ISUID ? 's' : (st.st_mode & S_IXUSR ? 'x' : '-'),
st.st_mode & S_IRGRP ? 'r' : '-',
st.st_mode & S_IWGRP ? 'w' : '-',
st.st_mode & S_ISGID ? 's' : (st.st_mode & S_IXGRP ? 'x' : '-'),
st.st_mode & S_IROTH ? 'r' : '-',
st.st_mode & S_IWOTH ? 'w' : '-'
);
if (st.st_mode & S_ISVTX)
printf("t");
else
printf("%c", st.st_mode & S_IXOTH ? 'x' : '-');
printf(")\n");
auto print_time = [] (time_t t) {
auto* tm = localtime(&t);
printf("%4u-%02u-%02u %02u:%02u:%02u\n",
tm->tm_year + 1900,
tm->tm_mon + 1,
tm->tm_mday,
tm->tm_hour,
tm->tm_min,
tm->tm_sec);
};
printf("Accessed: ");
print_time(st.st_atime);
printf("Modified: ");
print_time(st.st_mtime);
printf(" Changed: ");
print_time(st.st_ctime);
return 0;
}