src/utils/string_utils.c

   1 /*
   2  * string_utils.c
   3  */
   4 #include <stdio.h>
   5 #include <ctype.h>
   6
   7 char *substrncpy(char *dest, const char *start, const char *end, size_t n)
   8 {
   9         size_t i;
  10         const char *src;
  11
  12         if ((!dest) || (!start) || (!end) || (n == 0))
  13                 return NULL;
  14
  15         if (start > end)
  16                 return NULL;
  17
  18         src = start;
  19         for (i = 0 ; i < n && src <= end; i++, src++) {
  20                 dest[i] = *src;
  21         }
  22         for ( ; i < n ; i++) {
  23                 dest[i] = '\0';
  24         }
  25
  26         return dest;
  27 }
  28
  29 const char *trim_spaces(const char *line)
  30 {
  31         const char *p = line;
  32
  33         while (*p != '\0' && isspace(*p)) {
  34                 if (*p == '\n' || *p == '\r') {
  35                         break;
  36                 }
  37                 p++;
  38         }
  39         return p;
  40 }