Better file structure and build system

[sysstatus.git] / src / status / netif.c

diff --git a/src/status/netif.c b/src/status/netif.c
new file mode 100644 (file)
index 0000000..23e6520
--- /dev/null
+++ b/src/status/netif.c
@@ -0,0 +1,80 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+#include "status/netif.h"
+#include "tools.h"
+#include "config.h"
+
+#ifndef NETIF_BASEDIR
+  #define NETIF_BASEDIR "/sys/class/net/"
+#endif
+
+
+void status_netif(char *ifname)
+{
+  char ifpath[256];
+  int ifpathlen;
+
+  char stline[16];
+  ssize_t stlen;
+
+  double ifsum = 0.0;
+  int ifsumpower;
+
+
+  /* Prepare path */
+  ifpathlen = sizeof(NETIF_BASEDIR) - 1 + strlen(ifname);
+  if (ifpathlen + 1 + sizeof("/statistics/rx_bytes") >= sizeof(ifpath)) {
+    statusError("status_netif",
+                "ifpath buffer too small",
+                ifname);
+    return;
+  }
+  strcpy(ifpath, NETIF_BASEDIR);
+  strcat(ifpath, ifname);
+
+
+  /* Is the interface up? */
+  if (access(ifpath, F_OK)) {
+    //printf(" ^fg(grey)[%s] ", ifname);
+    return;
+  }
+
+
+  strcpy(&ifpath[ifpathlen], "/carrier");
+  stlen = fileRead(stline, sizeof(stline), ifpath);
+  if (stlen > 0) {
+    if (stline[0] == '1') {
+      fputs("^fg(yellow)", stdout);
+    } else {
+      //fputs("^fg(red)", stdout);
+      return;
+    }
+  } else {
+    return;
+  }
+
+  strcpy(&ifpath[ifpathlen], "/statistics/rx_bytes");
+  stlen = fileRead(stline, sizeof(stline), ifpath);
+  if (stlen > 0) {
+    ifsum = atof(stline);
+  }
+
+  strcpy(&ifpath[ifpathlen], "/statistics/tx_bytes");
+  stlen = fileRead(stline, sizeof(stline), ifpath);
+  if (stlen > 0) {
+    ifsum += atof(stline);
+  }
+
+
+  for(ifsumpower = 0; ifsum >= 1024.0; ifsumpower++) {
+    ifsum = ifsum / 1024;
+  }
+
+  printf(" %s: %.*f %c ", ifname,
+                          ifsumpower ? ifsumpower - 1 : ifsumpower,
+                          ifsum,
+                          powerToChar(ifsumpower));
+}