src/linux.c

   1 // linux specific stuff for shallot
   2
   3 #include "linux.h"
   4
   5 #ifdef LINUX_PORT
   6
   7 #include "defines.h"
   8 #include <string.h>
   9
  10 // Linux specific stuff (damn this is ugly code.  blame linus.)
  11 uint8_t parse_cpuinfo(char *buf, uint16_t avail, uint16_t *used) {
  12   uint16_t x = 0;
  13   char procsfound = 0;
  14   static uint8_t skip = 0;
  15
  16   if(!skip) {
  17     if(memcmp(&CPUINFO_PROC_STR, buf, CPUINFO_PROC_STR_LEN) == 0)
  18       procsfound++;
  19   }
  20
  21   while((buf[x] != 0) && (x < avail)) {
  22     if(x) {
  23       if(buf[x - 1] == '\n') {
  24         break;
  25       }
  26     }
  27     x++;
  28   }
  29
  30   *used = x;
  31
  32   if(!x)
  33     return 0; // prevent the next if statement from causing a buffer overflow
  34
  35   if((x == avail) && (buf[x - 1] != '\n'))
  36     skip = 1;
  37   else
  38     skip = 0;
  39
  40   return procsfound;
  41 }
  42
  43 #endif
  44