YAZ  5.23.1
errno.c
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1 /* This file is part of the YAZ toolkit.
2  * Copyright (C) Index Data
3  * See the file LICENSE for details.
4  */
5 
13 #if HAVE_CONFIG_H
14 #include <config.h>
15 #endif
16 
17 #ifndef _REENTRANT
18 #define _REENTRANT
19 #endif
20 
21 #include <stdlib.h>
22 #include <string.h>
23 #include <errno.h>
24 #include <stddef.h>
25 #include <yaz/errno.h>
26 
27 #ifdef WIN32
28 #include <windows.h>
29 #endif
30 
31 int yaz_errno(void)
32 {
33  return errno;
34 }
35 
36 void yaz_set_errno(int v)
37 {
38  errno = v;
39 }
40 
41 void yaz_strerror(char *buf, size_t bufsz)
42 {
43 #ifdef WIN32
44  DWORD err;
45 #endif
46  char *cp;
47 #ifdef WIN32
48  err = GetLastError();
49  if (err)
50  {
51  FormatMessage(
52  FORMAT_MESSAGE_FROM_SYSTEM,
53  NULL,
54  err,
55  MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), /* Default lang */
56  (LPTSTR) buf,
57  bufsz-1,
58  NULL);
59  }
60  else
61  *buf = '\0';
62 #else
63 /* UNIX */
64 #if HAVE_STRERROR_R
65  *buf = '\0';
66  strerror_r(errno, buf, bufsz);
67  /* if buffer is unset - use strerror anyway (GLIBC bug) */
68  if (*buf == '\0')
69  strcpy(buf, strerror(yaz_errno()));
70 #else
71  strcpy(buf, strerror(yaz_errno()));
72 #endif
73 /* UNIX */
74 #endif
75  if ((cp = strrchr(buf, '\n')))
76  *cp = '\0';
77  if ((cp = strrchr(buf, '\r')))
78  *cp = '\0';
79 }
80 /*
81  * Local variables:
82  * c-basic-offset: 4
83  * c-file-style: "Stroustrup"
84  * indent-tabs-mode: nil
85  * End:
86  * vim: shiftwidth=4 tabstop=8 expandtab
87  */
88 
Header for errno utilities.
void yaz_set_errno(int v)
sets errno to value
Definition: errno.c:36
int yaz_errno(void)
returns errno
Definition: errno.c:31
void yaz_strerror(char *buf, size_t bufsz)
returns system error description string
Definition: errno.c:41