firmware/common/strcasecmp.c

   1
   2 #include <string.h>
   3 #include <ctype.h>
   4
   5 int strcasecmp(const char *s1, const char *s2)
   6 {
   7     while (*s1 != '\0' && tolower(*s1) == tolower(*s2)) {
   8         s1++;
   9         s2++;
  10     }
  11
  12     return tolower(*(unsigned char *) s1) - tolower(*(unsigned char *) s2);
  13 }
  14
  15 int strncasecmp(const char *s1, const char *s2, size_t n)
  16 {
  17     int d = 0;
  18
  19     for(; n != 0; n--)
  20     {
  21         int c1 = tolower(*s1++);
  22         int c2 = tolower(*s2++);
  23         if((d = c1 - c2) != 0 || c2 == '\0')
  24             break;
  25     }
  26
  27     return d;
  28 }