Tooltron

Revision cc7646f9

Major changes to mainbox code.

-Added local cache for RFID -> tool permissions
-Queries new page /crm/roboauth/%08x, which gives bitmask of all tool
permissions instead of just one
-Added pid file at /var/run/tooltron.pid
-Now must be run as "tooltron run" and also has "tooltron refresh" and
"tooltron clear" which send signals to the pid in the pid file
-Other things I'm forgetting

#ifndef UTIL_H

#define UTIL_H

/* Reads in an entire file. Returns NULL on error, or a malloc'd pointer to a

 * string which should later be freed. */

#include <unistd.h>

char *read_file(const char *filename);

int create_pid_file();

pid_t read_pid_file();

void remove_pid_file();

#endif

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