skalibs

Mirror/fork of https://skarnet.org/software/skalibs/
git clone https://ccx.te2000.cz/git/skalibs
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string_unquote.c (484B)

      1 /* ISC license. */
      2 
      3 #include <string.h>
      4 #include <errno.h>
      5 #include <skalibs/skamisc.h>
      6 
      7 int string_unquote (char *d, size_t *w, char const *s, size_t len, size_t *r)
      8 {
      9   if (!len-- || (*s++ != '"')) return (errno = EINVAL, 0) ;
     10   {
     11     size_t rr, ww ;
     12     char tmp[len ? len : 1] ;
     13     if (!string_unquote_withdelim(tmp, &ww, s, len, &rr, "\"", 1)) return 0 ;
     14     if (rr == len) return (errno = EPIPE, 0) ;
     15     memcpy(d, tmp, ww) ;
     16     *w = ww ;
     17     *r = rr + 2 ;
     18   }
     19   return 1 ;
     20 }