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1/*
2 * Copyright (C) 2013 nu774
3 * For conditions of distribution and use, see copyright notice in COPYING
4 */
5#if HAVE_CONFIG_H
6# include "config.h"
7#endif
8#if HAVE_STDINT_H
9# include <stdint.h>
10#endif
11#include <stdio.h>
12#include <stdlib.h>
13#include <string.h>
14#include <stdarg.h>
15#include <sys/time.h>
16#include "compat.h"
17
18int64_t aacenc_timer(void)
19{
20 struct timeval tv = { 0 };
21 gettimeofday(&tv, 0);
22 return (int64_t)tv.tv_sec * 1000 + tv.tv_usec / 1000;
23}
24
25FILE *aacenc_fopen(const char *name, const char *mode)
26{
27 FILE *fp;
28 if (strcmp(name, "-") == 0)
29 fp = (mode[0] == 'r') ? stdin : stdout;
30 else
31 fp = fopen(name, mode);
32 return fp;
33}
34
35void aacenc_getmainargs(int *argc, char ***argv)
36{
37 return;
38}
39
40int aacenc_fprintf(FILE *fp, const char *fmt, ...)
41{
42 va_list ap;
43 int cnt;
44
45 va_start(ap, fmt);
46 cnt = vfprintf(fp, fmt, ap);
47 va_end(ap);
48 return cnt;
49}
50
51/*
52 * Different from POSIX basename() when path ends with /.
53 * Since we use this only for a regular file, the difference doesn't matter.
54 */
55const char *aacenc_basename(const char *path)
56{
57 const char *p = strrchr(path, '/');
58 return p ? p + 1: path;
59}
60
61#ifndef HAVE_ICONV
62char *aacenc_to_utf8(const char *s)
63{
64 return strdup(s);
65}
66#else /* HAVE_ICONV */
67
68#include <sys/types.h>
69#include <stddef.h>
70#include <errno.h>
71#include <iconv.h>
72
73#if HAVE_LOCALCHARSET_H
74#include <localcharset.h>
75#elif HAVE_LANGINFO_H
76#include <langinfo.h>
77static const char *locale_charset(void)
78{
79 return nl_langinfo(CODESET);
80}
81#else
82static const char *locale_charset(void)
83{
84 return 0;
85}
86#endif
87
88static
89int utf8_from_charset(const char *charset, const char *from, char **to)
90{
91 iconv_t cd;
92 size_t fromlen, obsize, ibleft, obleft;
93 char *ip, *op;
94
95 cd = iconv_open("UTF-8", charset);
96 if (cd == (iconv_t)-1)
97 return -1;
98
99 fromlen = strlen(from);
100 ibleft = fromlen;
101 obsize = 2;
102 obleft = obsize - 1;
103 *to = malloc(obsize);
104 ip = (char *)from;
105 op = *to;
106
107 while (ibleft > 0) {
108 if (iconv(cd, &ip, &ibleft, &op, &obleft) != (size_t)-1)
109 break;
110 else {
111 if (errno == E2BIG || obleft == 0) {
112 ptrdiff_t offset = op - *to;
113 obsize *= 2;
114 *to = realloc(*to, obsize);
115 op = *to + offset;
116 obleft = obsize - offset - 1;
117 }
118 if (errno == EILSEQ) {
119 ++ip;
120 --ibleft;
121 *op++ = '?';
122 --obleft;
123 }
124 if (errno != E2BIG && errno != EILSEQ)
125 break;
126 }
127 }
128 iconv_close(cd);
129 *op = 0;
130 if (fromlen > 0 && op == *to) {
131 free(op);
132 return -1;
133 }
134 return 0;
135}
136
137char *aacenc_to_utf8(const char *s)
138{
139 char *result;
140 const char *charset;
141
142 if ((charset = locale_charset()) == 0)
143 charset = "US-ASCII";
144 if (utf8_from_charset(charset, s, &result) < 0)
145 result = strdup(s);
146 return result;
147}
148#endif /* HAVE_ICONV */
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