gentoo-overlay/sys-power/acpitool/files/acpitool-0.5.1-wakeup.patch

From 3a87a4132667f78fc85c54ad89992bbdd02d1e55 Mon Sep 17 00:00:00 2001
From: Carlos Alberto Lopez Perez <clopez@igalia.com>
Date: Thu, 6 Oct 2011 03:12:55 +0200
Subject: [PATCH] Use dynamic structures instead of predefined ones

 * The file /proc/acpi/wakeup can have much more than 25 entries.
   In my computer (Dell E6420) I have 27 entries.
   So instead of using an array of [x] entries better use dynamic
   vectors and push the new entries when a new line from the file
   is read.

 * The name of the device is not ever 4 characters. For example I
   have a device called "LID" which is 3 characters long.
   Instead of using a fixed size for the device we split the line
   on the first tab (\t) and use the first part.
---
 src/acpitool.cpp |   23 +++++++++++------------
 1 files changed, 11 insertions(+), 12 deletions(-)

diff --git a/src/acpitool.cpp b/src/acpitool.cpp
index 2a610a5..71e01d7 100644
--- a/src/acpitool.cpp
+++ b/src/acpitool.cpp
@@ -460,16 +460,14 @@ int Show_WakeUp_Devices(int verbose)
 
 int Toggle_WakeUp_Device(const int Device, int verbose)
 {
-    ifstream file_in;
     ofstream file_out;
-    char *filename, str[50];
-    int index = 1;
-    char Name[25][5];            // 25 should be enough I guess, I have only 9 so far //
-    
+    char *filename; string str;
+    int index = 1; int charindex = 0;
+    std::vector <std::string> Name(index); // Never is enough, use dynamic structures //
     filename = "/proc/acpi/wakeup";
     
-    file_in.open(filename);
-    if (!file_in)        
+    ifstream file_in(filename, ifstream::in);
+    if (!file_in.good()) // if opening is not successful
     {
     	if(!verbose)        
     	{
@@ -484,14 +482,15 @@ int Toggle_WakeUp_Device(const int Device, int verbose)
     	}	
     }
     
-    file_in.getline(str, 50);             // first line are just headers //
+    getline(file_in, str);                // first line are just headers //
     while(!file_in.eof())                 // count all devices and store their names//
     {
-        file_in.getline(str, 50);
-        if(strlen(str)!=0)                // avoid empty last line //
+        getline(file_in, str);
+        if( str.length() != 0 )           // avoid empty last line //
         {
-	    memset(Name[index], '\0', 5);
-	    strncpy(Name[index], str, 4);
+	    charindex = 0; // reset to zero
+	    while ( (str[++charindex]!='\t')  ); // stop on first tab and get the array index
+	    Name.push_back(str.substr(0,charindex)); // Push the name into the vector
 	    index++;
 	}
     }	
-- 
1.7.5.4