Initial commit

.gitignore

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+.idea
+.vscode
+
+oki-lock.toml
+oki-packages
+cmake-build-debug
+
+*.so
+*.out

Makefile

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+CC := gcc
+CFLAGS := -std=c17 -Wall -Wextra -g
+
+CPPFLAGS := 
+LDLIBS := 
+
+fakeid.so: fakeid.c
+	$(CC) $(CFLAGS) -shared -fPIC -o fakeid.so fakeid.c
+
+.PHONY: clean
+clean:
+	rm -rf fakeid.so

fakeid

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+#!/bin/bash
+
+LD_PRELOAD=$(dirname "$(readlink -f "$0")")/fakeid.so "$@"

fakeid.c

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+#define _GNU_SOURCE
+
+#include <dlfcn.h>
+#include <string.h>
+#include <sys/types.h>
+#include <pwd.h>
+
+char *username = "alice";
+
+int getlogin_r(char *buf, size_t bufsize) {
+    strncpy(buf, username, bufsize);
+    return 0;
+}
+
+struct passwd *getpwuid(uid_t uid) {
+    struct passwd *(*getpwuid)(uid_t) = dlsym(RTLD_NEXT, "getpwuid");
+    struct passwd *pass = getpwuid(uid);
+    pass->pw_name = username;
+    return pass;
+}

oki.toml

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+[package]
+name = "fakeid"
+version = "0.1.0"
+kind = "c"
+
+[dependencies]