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Add getpwent() family of functions to LibC.

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Also add a little /etc/passwd database. There's just me in there.
This commit is contained in:
Andreas Kling 2018-10-31 19:49:22 +01:00
parent 819ce91395
commit 9886b27d9c
17 changed files with 175 additions and 25 deletions
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5
Userland/Makefile
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@ -3,7 +3,6 @@ OBJS = \
sh.o \
ps.o \
ls.o \
pwd.o \
sleep.o \
date.o \
true.o \
@ -21,7 +20,6 @@ APPS = \
sh \
ps \
ls \
pwd \
sleep \
date \
true \
@ -64,9 +62,6 @@ ps: ps.o
ls: ls.o
$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
pwd: pwd.o
$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
sleep: sleep.o
$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a

7
Userland/id.cpp
View file

@ -1,12 +1,15 @@
#include <LibC/unistd.h>
#include <LibC/stdio.h>
#include <LibC/pwd.h>
int main(int c, char** v)
{
uid_t uid = getuid();
gid_t gid = getgid();
pid_t pid = getpid();
printf("uid=%u, gid=%u, pid=%u\n", uid, gid, pid);
struct passwd* pw = getpwuid(uid);
printf("uid=%u(%s), gid=%u\n", uid, pw ? pw->pw_name : "n/a", gid);
return 0;
}

15
Userland/pwd.cpp
View file

@ -1,15 +0,0 @@
#include <LibC/unistd.h>
#include <LibC/stdio.h>
int main(int c, char** v)
{
char buffer[1024];
char* ptr = getcwd(buffer, sizeof(buffer));
if (!ptr) {
printf("getcwd() failed\n");
return 1;
}
printf("%s\n", ptr);
return 0;
}