From 9cd458dc915e730108ef2e3daf5af18119b7c54f Mon Sep 17 00:00:00 2001
From: TomatenMarc <marc.feger@uni-duesseldorf.de>
Date: Thu, 24 May 2018 21:55:34 +0200
Subject: [PATCH] Add programm to read meminfo
---
Read_System_Info/read_sys.c | 36 ++++++++++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)
create mode 100644 Read_System_Info/read_sys.c
diff --git a/Read_System_Info/read_sys.c b/Read_System_Info/read_sys.c
new file mode 100644
index 0000000..5996a8a
--- /dev/null
+++ b/Read_System_Info/read_sys.c
@@ -0,0 +1,36 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#define SIZE 1000
+
+int main(void){
+
+ int file = open("/proc/meminfo", O_RDONLY);
+ if(file == -1){
+ perror("open error");
+ return -1;
+ }
+ char *buffer = malloc(SIZE*sizeof(char));
+ int rd = read(file, buffer, SIZE);
+ if(rd == -1){
+ perror("read error");
+ free(buffer);
+ close(file);
+ return -1;
+ }
+
+ char mem_total[SIZE];
+ char mem_free[SIZE];
+ char mem_cach[SIZE];
+
+ sscanf(buffer, "%*s %s %*s %*s %s %*s %*s %*s %*s %*s %*s %*s %*s %s", mem_total, mem_free, mem_cach);
+ printf("MemTotal: %s\nMemFree: %s\nCached: %s\n", mem_total, mem_free, mem_cach);
+
+ free(buffer);
+ close(file);
+ return 0;
+}
--
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