Initial fork from https://git.suckless.org/slstatus

Changes to be committed:
    new file:   LICENSE
    new file:   Makefile
    new file:   README
    new file:   arg.h
    new file:   components/battery.c
    new file:   components/cat.c
    new file:   components/cpu.c
    new file:   components/datetime.c
    new file:   components/disk.c
    new file:   components/entropy.c
    new file:   components/hostname.c
    new file:   components/ip.c
    new file:   components/kernel_release.c
    new file:   components/keyboard_indicators.c
    new file:   components/keymap.c
    new file:   components/load_avg.c
    new file:   components/netspeeds.c
    new file:   components/num_files.c
    new file:   components/ram.c
    new file:   components/run_command.c
    new file:   components/swap.c
    new file:   components/temperature.c
    new file:   components/uptime.c
    new file:   components/user.c
    new file:   components/volume.c
    new file:   components/wifi.c
    new file:   config.def.h
    new file:   config.mk
    new file:   slstatus.1
    new file:   slstatus.c
    new file:   slstatus.h
    new file:   util.c
    new file:   util.h

1 files changed, 32 insertions, 0 deletions

diff --git a/components/cat.c b/components/cat.c
new file mode 100644
index 0000000..07944cc
--- /dev/null
+++ b/components/cat.c
@@ -0,0 +1,32 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdio.h>
+#include <string.h>
+
+#include "../slstatus.h"
+#include "../util.h"
+
+const char *
+cat(const char *path)
+{
+        char *f;
+        FILE *fp;
+
+        if (!(fp = fopen(path, "r"))) {
+                warn("fopen '%s':", path);
+                return NULL;
+        }
+
+        f = fgets(buf, sizeof(buf) - 1, fp);
+        if (fclose(fp) < 0) {
+                warn("fclose '%s':", path);
+                return NULL;
+        }
+        if (!f)
+                return NULL;
+
+        if ((f = strrchr(buf, '\n')))
+                f[0] = '\0';
+
+        return buf[0] ? buf : NULL;
+}
+