panel-plugin: whitespace cleanup.

[xfce4-hdaps.git] / panel-plugin / hdaps.c

diff --git a/panel-plugin/hdaps.c b/panel-plugin/hdaps.c
index a2962e40ffaaff47ccea819dd15afe9c46799ae5..4254d720ca822660b5e0d683d53542cfc9f322ba 100644 (file)
--- a/panel-plugin/hdaps.c
+++ b/panel-plugin/hdaps.c
@@ -1,3 +1,24 @@
+/*
+ * xfce4-hdaps, an XFCE4 panel plugin for the HDAPS system.
+ *
+ * Copyright (C) 2019 Michael Orlitzky
+ *
+ *   http://michael.orlitzky.com/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details:
+ *
+ *   https://www.gnu.org/licenses/agpl-3.0.html
+ *
+ */
+
 #ifdef HAVE_CONFIG_H
 #include <config.h>
 #endif
@@ -6,8 +27,9 @@
 #include <sys/types.h>
 #include <errno.h>
 #include <fcntl.h>
-#include <stdio.h>
 #include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
 #include "hdaps.h"
 
 /* The most space we expect to need when reading in
@@ -36,13 +58,13 @@ int get_hdaps_device_list(char list[MAX_HDAPS_DEVICES][FILENAME_MAX]) {
    * We start by getting every device in the sysfs
    * block device directory, and then eliminate those
    * which don't have an unload_heads entry.
-   */  
+   */
   int list_idx = 0;
   DIR *dp;
   struct dirent *ep;
 
   dp = opendir(SYSFS_BLOCK_DEVICE_DIR);
-  
+
   if (dp != NULL) {
     while ((ep = readdir(dp)) && list_idx < MAX_HDAPS_DEVICES) {
       /* This next test covers "." and ".." too. */
@@ -63,26 +85,26 @@ int get_hdaps_device_list(char list[MAX_HDAPS_DEVICES][FILENAME_MAX]) {
 int slurp_file(const char* filename, char* buf, int max_bytes) {
   /* This function just reads the contents of filename
    * into buf, and returns the number of bytes read.
-   */    
+   */
   if (filename == NULL || buf == NULL) {
     /* HDAPS_SUPER_BAD_ERROR */
     return HDAPS_ERROR;
   }
 
- 
+
   /* Return an error value by default. */
   int bytes_read = HDAPS_ERROR;
 
   int fd = open(filename, O_RDONLY);
-    
+
   if (fd < 0) {
     /* open() didn't work. Report the error, and bail. */
     fprintf(stderr, "open(%s): %s\n", filename, strerror(errno));
     return HDAPS_ERROR;
-  }    
+  }
 
   bytes_read = read(fd, buf, max_bytes-1);
-  
+
   if (bytes_read < 0) {
     /* Why did we read fewer than 0 bytes? */
     fprintf(stderr, "read(%s): %s\n", filename, strerror(errno));
@@ -91,13 +113,13 @@ int slurp_file(const char* filename, char* buf, int max_bytes) {
     /* Null-terminate buf if read() worked. */
     buf[bytes_read] = 0;
   }
-  
+
 
   if (close(fd)) {
     /* Oh hey we should be able to close the file, too. */
-    fprintf(stderr, "close(%s): %s\n", filename, strerror(errno));    
+    fprintf(stderr, "close(%s): %s\n", filename, strerror(errno));
   }
-  
+
   return bytes_read;
 }
 
@@ -107,7 +129,7 @@ int slurp_file(const char* filename, char* buf, int max_bytes) {
 int parse_int_from_file(const char* filename) {
   /* Read an integer from a file. We expect the file
      to contain an integer (although in string form). */
-  
+
   char buf[MAX_FILE_CONTENTS_SIZE];
   int bytes_read = slurp_file(filename, buf, sizeof(buf));