Add argument parsing and validation

1 files changed, 26 insertions, 6 deletions

diff --git a/cputemp2maxfreq.h b/cputemp2maxfreq.h
index ef33fd5..39886fd 100644
--- a/cputemp2maxfreq.h
+++ b/cputemp2maxfreq.h
@@ -1,3 +1,22 @@
+#ifndef HAVE_CPUTEMP2MAXFREQ_H
+#define HAVE_CPUTEMP2MAXFREQ_H
+
+// Valid frequencies are between 100MHz and 10GHz
+#define VALID_FREQ_MIN 100000
+#define VALID_FREQ_MAX 10000000
+
+// Valid frequency steps are between 1MHz and 1GHz
+#define VALID_STEP_MIN 1000
+#define VALID_STEP_MAX 1000000
+
+// Valid temperatures are between 10 and 150 degrees
+#define VALID_TEMP_MIN 10000
+#define VALID_TEMP_MAX 150000
+
+// Valid intervals are between 1 and 30
+#define VALID_INTERVAL_MIN 1
+#define VALID_INTERVAL_MAX 30
+
 struct s_cpudata {
  long int min_freq;  // CPU's minimum frequency
  long int max_freq;  // CPU's maximum frequency
@@ -7,11 +26,12 @@ struct s_cpudata {
 };
 
 struct s_config {
- char     *governor;   // The governor to use
- long int  max_temp;   // The target temperature
- char     *temp_input; // Input file to read the temperature
- long int  freq_step;  // Step size to increase/decrease CPU frequency
- long int  fallback_freq; // CPU frquency to set if we fail to protect hardware
- unsigned int interval;   // Time interval to check CPU temperature
+ char     governor[255];   // The governor to use
+ long int max_temp;        // The target temperature
+ char     temp_input[255]; // Input file to read the temperature
+ long int freq_step;       // Step size to increase/decrease CPU frequency
+ long int fallback_freq;   // CPU frquency to set if we fail to protect hardware
+ unsigned int interval;    // Time interval to check CPU temperature
 };
 
+#endif