pd.if.org Git - zpackage/blob - lib/quote.c

   1 #include <stddef.h>
   2
   3 #include "sqlite3.h"
   4
   5 int zpm_quote(char *value, char *dest, size_t n) {
   6         size_t dlen = 0;
   7         int nch = 0;
   8         char *s;
   9
  10         /* figure out length of quoted string */
  11         for (s = value; *s; s++) {
  12                 dlen++;
  13                 if (*s == '\'') dlen++;
  14         }
  15
  16         /* if there's enough room for the string and the terminating null
  17          * byte, quote the string
  18          */
  19         if (dest && dlen < n) {
  20                 while (*value) {
  21                         if (*value == '\'') {
  22                                 *dest++ = '\'';
  23                                 nch++;
  24                         }
  25                         *dest++ = *value++;
  26                         nch++;
  27                 }
  28                 dest[nch] = 0;
  29         }
  30
  31         /* returns either the number of characters written or would
  32          * be written
  33          */
  34         return dlen;
  35 }