From 3af50b956b8887b64c3c29b30a0008be866b24c4 Mon Sep 17 00:00:00 2001
From: the lemons <citrons@mondecitronne.com>
Date: Sun, 5 Feb 2023 19:06:16 -0600
Subject: initial commit

---
 procfs.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 procfs.c

(limited to 'procfs.c')

diff --git a/procfs.c b/procfs.c
new file mode 100644
index 0000000..63aef3a
--- /dev/null
+++ b/procfs.c
@@ -0,0 +1,28 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include "procfs.h"
+
+int procfs_open(pid_t pid) {
+	char path[2048];
+	sprintf(path, "/proc/%d/mem", pid);
+	return open(path, O_RDWR);
+}
+
+int read_page(int fd, uintptr_t index, uint8_t *data) {
+	if (lseek(fd, index * PAGE_SIZE, SEEK_SET) == -1) 
+		return -1;
+	size_t n = 0;
+	while (n < PAGE_SIZE) {
+		ssize_t result = read(fd, data + n, PAGE_SIZE - n);
+		if (result == -1) return -1;
+		n += result;
+	}
+	return 0;
+}
-- 
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