summaryrefslogtreecommitdiff
path: root/support/dktools/dk4rec02.c
blob: d1db62a07b41a42bb000c0db70affe3528e3ebaa (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
/*
Copyright (C) 2015-2020, Dirk Krause
SPDX-License-Identifier: BSD-3-Clause
*/

/*
	WARNING: This file was generated by the dkct program (see
	http://dktools.sourceforge.net/ for details).
	Changes you make here will be lost if dkct is run again!
	You should modify the original source and run dkct on it.
	Original source: dk4rec02.ctr
*/

/**	@file dk4rec02.c The dk4rec02 module.
*/


#line 70 "dk4rec02.ctr"

#include "dk4conf.h"
#include "dk4rec02.h"
#include "dk4ansi.h"

#if	DK4_HAVE_ASSERT_H
#ifndef	ASSERT_H_INCLUDED
#include <assert.h>
#define	ASSERT_H_INCLUDED 1
#endif
#endif


int
dk4recode_ansi_to_ascii(
  char *dstb, size_t szdstb, const char *src, dk4_er_t *erp
)
{
  size_t	 used	=	0;
  dk4_c32_t	 c32	=	dkC32(0);
  int		 back	=	0;
  unsigned char	 uc	=	'\0';
#if	DK4_USE_ASSERT
  assert(NULL != dstb);
  assert(0 < szdstb);
  assert(NULL != src);
#endif
  if ((NULL != dstb) && (NULL != src) && (0 < szdstb)) {
    back = 1;
    while (('\0' != *src) && (1 == back) && (used < szdstb)) {
      uc = (unsigned char)(*(src++));
      if (0 != dk4ansi_decode(&c32, uc)) {
        if (dkC32(0x00000100) > c32) {
	  dstb[used++] = (char)c32;
	} else {
	  back = 0;
	  dk4error_set_elsize_nelem(erp, DK4_E_SYNTAX, 1, used);
	}
      } else {
        back = 0;
	dk4error_set_elsize_nelem(erp, DK4_E_SYNTAX, 1, used);
      }
    }
    if (used < szdstb) {
      dstb[used] = '\0';
    } else {
      dstb[szdstb - 1] = '\0';
      back = 0;
      dk4error_set_simple_error_code(erp, DK4_E_BUFFER_TOO_SMALL);
    }
  } else {
    dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
  }
  return back;
}