sys/netsmb/iconv.c

   1 /*      $NetBSD: iconv.c,v 1.11 2006/10/12 01:32:46 christos Exp $      */
   2
   3 /* Public domain */
   4
   5 #include <sys/cdefs.h>
   6 __KERNEL_RCSID(0, "$NetBSD: iconv.c,v 1.11 2006/10/12 01:32:46 christos Exp $");
   7
   8 #include <sys/param.h>
   9 #include <sys/kernel.h>
  10 #include <sys/systm.h>
  11 #include <sys/errno.h>
  12 #include <sys/malloc.h>
  13
  14 #include <netsmb/iconv.h>
  15
  16 int
  17 iconv_open(const char *to, const char *from,
  18     void **handle)
  19 {
  20         return 0;
  21 }
  22
  23 int
  24 iconv_close(void *handle)
  25 {
  26         return 0;
  27 }
  28
  29 int
  30 iconv_conv(void *handle, const char **inbuf,
  31     size_t *inbytesleft, char **outbuf, size_t *outbytesleft)
  32 {
  33         if (*inbytesleft > *outbytesleft)
  34                 return(E2BIG);
  35
  36         if (inbuf == NULL)
  37                 return(0); /* initial shift state */
  38
  39         (void)memcpy(*outbuf, *inbuf, *inbytesleft);
  40
  41         *outbytesleft -= *inbytesleft;
  42
  43         *inbuf += *inbytesleft;
  44         *outbuf += *inbytesleft;
  45
  46         *inbytesleft = 0;
  47
  48         return 0;
  49 }
  50
  51 char *
  52 iconv_convstr(void *handle, char *dst, const char *src, size_t l)
  53 {
  54         char *p = dst;
  55         size_t inlen, outlen;
  56         int error;
  57
  58         if (handle == NULL) {
  59                 strlcpy(dst, src, l);
  60                 return dst;
  61         }
  62         inlen = outlen = strlen(src);
  63         error = iconv_conv(handle, NULL, NULL, &p, &outlen);
  64         if (error)
  65                 return NULL;
  66         error = iconv_conv(handle, &src, &inlen, &p, &outlen);
  67         if (error)
  68                 return NULL;
  69         *p = 0;
  70         return dst;
  71 }
  72
  73 void *
  74 iconv_convmem(void *handle, void *dst, const void *src, int size)
  75 {
  76         const char *s = src;
  77         char *d = dst;
  78         size_t inlen, outlen;
  79         int error;
  80
  81         if (size == 0)
  82                 return dst;
  83         if (handle == NULL) {
  84                 memcpy(dst, src, size);
  85                 return dst;
  86         }
  87         inlen = outlen = size;
  88         error = iconv_conv(handle, NULL, NULL, &d, &outlen);
  89         if (error)
  90                 return NULL;
  91         error = iconv_conv(handle, &s, &inlen, &d, &outlen);
  92         if (error)
  93                 return NULL;
  94         return dst;
  95 }
  96
  97 int
  98 iconv_lookupcp(const char **cpp, const char *s)
  99 {
 100         for (; *cpp; cpp++)
 101                 if (strcmp(*cpp, s) == 0)
 102                         return 0;
 103         return ENOENT;
 104 }