From 4be515392d80c2cbff54478bf76fff52d643b09f Mon Sep 17 00:00:00 2001
From: drath <drath@drath.cc>
Date: Sat, 9 May 2026 22:36:21 +0200
Subject: [PATCH] add ram and disk getters

---
 include/sys.h | 18 ++++++++++++++++++
 src/sys.c     | 27 +++++++++++++++++++++++++++
 2 files changed, 45 insertions(+)

diff --git a/include/sys.h b/include/sys.h
index 1458a1e..8c317ee 100644
--- a/include/sys.h
+++ b/include/sys.h
@@ -1,12 +1,30 @@
 #ifndef LINUXSMARTIE_SYS_H
 #define LINUXSMARTIE_SYS_H
 
+#include <stdint.h>
+
 struct time_date_t {
 	char date[12];
 	char time[9];
 };
 
+struct memory_t {
+	uint64_t free;
+	uint64_t used;
+	uint64_t total;
+};
+
+struct disk_t {
+	struct memory_t usage;
+	char mountpoint[256];
+};
+
 void sys_get_time(struct time_date_t *td);
+
 void sys_get_load_avg(double *load_avg);
 
+void sys_get_ram(struct memory_t *ram);
+
+void sys_get_disk(struct disk_t* disk);
+
 #endif //LINUXSMARTIE_SYS_H
\ No newline at end of file
diff --git a/src/sys.c b/src/sys.c
index 1cf0042..754f9b2 100644
--- a/src/sys.c
+++ b/src/sys.c
@@ -2,7 +2,9 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <time.h>
+#include <sys/statvfs.h>
 
 void sys_get_time(struct time_date_t *td) {
 	constexpr char months[][4] = {"sty", "lut", "mar", "kwi", "maj", "cze", "lip", "sie", "wrz", "paz", "lis", "gru"};
@@ -15,4 +17,29 @@ void sys_get_time(struct time_date_t *td) {
 
 void sys_get_load_avg(double *load_avg) {
 	getloadavg(load_avg, 3);
+}
+
+void sys_get_ram(struct memory_t *ram) {
+	char buf[64];
+	memset(ram, 0, sizeof(struct memory_t)); // zero out all values so we dont break out of the loop early
+
+	FILE *f = fopen("/proc/meminfo", "r");
+	if (f == nullptr)
+		return;
+
+	while (fgets(buf, sizeof(buf), f)) {
+		sscanf(buf, "MemTotal: %lu kB", &ram->total); // NOLINT we live dangerously
+		sscanf(buf, "MemAvailable: %lu kB", &ram->free); // NOLINT (its not really that dangerous)
+		if (ram->total && ram->free) break;
+	}
+	fclose(f);
+	ram->used = ram->total - ram->free;
+}
+
+void sys_get_disk(struct disk_t* disk) {
+	struct statvfs diskData;
+	statvfs(disk->mountpoint, &diskData);
+	disk->usage.free = diskData.f_bfree * diskData.f_frsize;
+	disk->usage.used = (diskData.f_blocks - diskData.f_bfree) * diskData.f_frsize;
+	disk->usage.total = diskData.f_blocks * diskData.f_frsize;
 }
\ No newline at end of file