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/* File: misc.h
*
* Description: See "misc.c"
*
* Comments: See "readme.txt" for copyright and license information.
*
*/
#ifndef __MISC_H__
#define __MISC_H__
#include <stdio.h>
#ifndef WIN32
#include <unistd.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
size_t strncpy_null(char *dst, const char *src, ssize_t len);
#ifndef HAVE_STRLCAT
size_t strlcat(char *, const char *, size_t);
#endif /* HAVE_STRLCAT */
int snprintfcat(char *buf, size_t size, const char *format, ...) __attribute__((format(PG_PRINTF_ATTRIBUTE,3,4)));
size_t snprintf_len(char *buf, size_t size, const char *format, ...);
char *my_trim(char *string);
char *make_string(const SQLCHAR *s, SQLINTEGER len, char *buf, size_t bufsize);
/* #define GET_SCHEMA_NAME(nspname) (stricmp(nspname, "public") ? nspname : "") */
char *quote_table(const pgNAME schema, const pgNAME table, char *buf, int nuf_size);
#define GET_SCHEMA_NAME(nspname) (nspname)
/* defines for return value of my_strcpy */
#define STRCPY_SUCCESS 1
#define STRCPY_FAIL 0
#define STRCPY_TRUNCATED (-1)
#define STRCPY_NULL (-2)
ssize_t my_strcpy(char *dst, ssize_t dst_len, const char *src, ssize_t src_len);
/*
* Macros to safely strcpy, strcat or sprintf to fixed arrays.
*
*/
/*
* With GCC, the macro CHECK_NOT_CHAR_P() causes a compilation error
* when the target is pointer not a fixed array.
*/
#if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406
#define FUNCTION_BEGIN_MACRO ({
#define FUNCTION_END_MACRO ;})
#define CHECK_NOT_CHAR_P(t) \
_Pragma ("GCC diagnostic push") \
_Pragma ("GCC diagnostic ignored \"-Wunused-variable\"") \
if (0) { typeof(t) dummy_for_check = {};} \
_Pragma ("GCC diagnostic pop")
#else
#define FUNCTION_BEGIN_MACRO
#define FUNCTION_END_MACRO
#define CHECK_NOT_CHAR_P(t)
#endif
/* macro to safely strcpy() to fixed arrays. */
#define STRCPY_FIXED(to, from) \
FUNCTION_BEGIN_MACRO \
CHECK_NOT_CHAR_P(to) \
strncpy_null((to), (from), sizeof(to)) \
FUNCTION_END_MACRO
/* macro to safely strcat() to fixed arrays. */
#define STRCAT_FIXED(to, from) \
FUNCTION_BEGIN_MACRO \
CHECK_NOT_CHAR_P(to) \
strlcat((to), (from), sizeof(to)) \
FUNCTION_END_MACRO
/* macro to safely sprintf() to fixed arrays. */
#define SPRINTF_FIXED(to, ...) \
FUNCTION_BEGIN_MACRO \
CHECK_NOT_CHAR_P(to) \
snprintf((to), sizeof(to), __VA_ARGS__) \
FUNCTION_END_MACRO
/* macro to safely sprintf() & cat to fixed arrays. */
#define SPRINTFCAT_FIXED(to, ...) \
FUNCTION_BEGIN_MACRO \
CHECK_NOT_CHAR_P(to) \
snprintfcat((to), sizeof(to), __VA_ARGS__) \
FUNCTION_END_MACRO
#define ITOA_FIXED(to, from) \
FUNCTION_BEGIN_MACRO \
CHECK_NOT_CHAR_P(to) \
snprintf((to), sizeof(to), "%d", from) \
FUNCTION_END_MACRO
#ifdef __cplusplus
}
#endif
#endif /* __MISC_H__ */
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