tools/sqlite/dbif.h

/* $FreeWRT: src/share/misc/licence.template,v 1.20 2006/12/11 21:04:56 tg Rel $ */

/*-
 * Copyright (c) 2007
 *      Thorsten Glaser <tg@mirbsd.de>
 *
 * Provided that these terms and disclaimer and all copyright notices
 * are retained or reproduced in an accompanying document, permission
 * is granted to deal in this work without restriction, including un-
 * limited rights to use, publicly perform, distribute, sell, modify,
 * merge, give away, or sublicence.
 *
 * Advertising materials mentioning features or use of this work must
 * display the following acknowledgement:
 *      This product includes material provided by Thorsten Glaser.
 * This acknowledgement does not need to be reprinted if this work is
 * linked into a bigger work whose licence does not allow such clause
 * and the author of this work is given due credit in the bigger work
 * or its accompanying documents, where such information is generally
 * kept, provided that said credits are retained.
 *
 * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
 * the utmost extent permitted by applicable law, neither express nor
 * implied; without malicious intent or gross negligence. In no event
 * may a licensor, author or contributor be held liable for indirect,
 * direct, other damage, loss, or other issues arising in any way out
 * of dealing in the work, even if advised of the possibility of such
 * damage or existence of a defect, except proven that it results out
 * of said person's immediate fault when using the work as intended.
 */

#ifndef DBIF_H
#define DBIF_H

#include "sqlite3.h"

/* stolen from mksh's sh.h */
#ifdef EXTERN
# define I__(i) = i
#else
# define I__(i)
# define EXTERN extern
# define EXTERN_DEFINED
#endif

/* debugging */
#define D(level, fmt, ...) do {                         \
        if (debug >= (level))                           \
                fprintf(stderr, (fmt), ##__VA_ARGS__);  \
} while (0)

__BEGIN_DECLS
EXTERN int debug I__(0);
EXTERN sqlite3 *db I__(NULL);

/* dbif.c */
void dberr(int, const char *, ...)
    __attribute__((format (printf, 2, 3)))
    __attribute__((noreturn));
#define dbexecv(cb, cbarg, sqlfmt, ...) dbexecv_(__FILE__, __LINE__, \
            __func__, (cb), (cbarg), (sqlfmt), __VA_ARGS__)
int dbexecv_(const char *, unsigned, const char *, sqlite3_callback,
    void *, const char *, ...)
    __attribute__((nonnull (6)))
    __attribute__((format (printf, 6, 7)));

#define xdbexecv(et, cb, cbarg, sqlfmt, ...) do {               \
        if (dbexecv_(__FILE__, __LINE__, __func__,              \
            (cb), (cbarg), (sqlfmt), __VA_ARGS__))              \
                dberr(1, et ? et : "processing SQL stmt");      \
} while (0)

#ifdef NFOTISER
#ifdef __GLIBC__
/* fgetln.c */
char *fgetln(FILE *, size_t *);
/* strlfun.c */
size_t strlcat(char *, const char *, size_t);
size_t strlcpy(char *, const char *, size_t);
#endif
#endif
__END_DECLS

/* useful stuff */
#define xmalloc(size) ({                                \
        void *xmalloc_ptr;                              \
        size_t xmalloc_sz = (size);                     \
                                                        \
        if ((xmalloc_ptr = malloc(xmalloc_sz)) == NULL) \
                err(255, "cannot allocate %zu bytes",   \
                    xmalloc_sz);                        \
        (xmalloc_ptr);                                  \
})

#define xrealloc(ptr, size) ({                          \
        void *xrealloc_newptr;                          \
        size_t xrealloc_sz = (size);                    \
                                                        \
        xrealloc_newptr = realloc((ptr), xrealloc_sz);  \
        if (xrealloc_newptr == NULL)                    \
                err(255, "cannot realloc to %zu bytes", \
                    xrealloc_sz);                       \
        (xrealloc_newptr);                              \
})

#define str_save(s) ({                                  \
        const char *str_save_s = (s);                   \
                                                        \
        (str_nsave(str_save_s, strlen(str_save_s)));    \
})

#define str_nsave(s, n) ({                              \
        char *str_nsave_ptr;                            \
        size_t str_nsave_sz = (n);                      \
                                                        \
        str_nsave_ptr = xmalloc(str_nsave_sz + 1);      \
        memcpy(str_nsave_sz, (s), str_nsave_sz);        \
        str_nsave_ptr[str_nsave_sz] = '\0';             \
        (str_nsave_ptr);                                \
})

#define str_add(d, s) ({                                \
        const char *str_add_s = (s);                    \
                                                        \
        (str_nadd((d), str_add_s, strlen(str_add_s)));  \
})

#define str_nadd(d, s, n) ({                            \
        char *str_nadd_ptr = (d), *str_nadd_newptr;     \
        size_t str_nadd_sz, str_nadd_addsz = (n);       \
                                                        \
        str_nadd_sz = strlen(str_nadd_ptr);             \
        str_nadd_newptr = xrealloc(str_nadd_ptr,        \
            str_nadd_sz + str_nadd_addsz + 1);          \
        str_nadd_ptr = str_nadd_newptr + str_nadd_sz;   \
        memcpy(str_nadd_ptr, (s), str_nadd_addsz);      \
        str_nadd_ptr[str_nadd_addsz] = '\0';            \
        (str_nadd_newptr);                              \
})

#endif
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1	/* $FreeWRT: src/share/misc/licence.template,v 1.20 2006/12/11 21:04:56 tg Rel $ */
2
3	/*-
4	* Copyright (c) 2007
5	* Thorsten Glaser <tg@mirbsd.de>
6	*
7	* Provided that these terms and disclaimer and all copyright notices
8	* are retained or reproduced in an accompanying document, permission
9	* is granted to deal in this work without restriction, including un-
10	* limited rights to use, publicly perform, distribute, sell, modify,
11	* merge, give away, or sublicence.
12	*
13	* Advertising materials mentioning features or use of this work must
14	* display the following acknowledgement:
15	* This product includes material provided by Thorsten Glaser.
16	* This acknowledgement does not need to be reprinted if this work is
17	* linked into a bigger work whose licence does not allow such clause
18	* and the author of this work is given due credit in the bigger work
19	* or its accompanying documents, where such information is generally
20	* kept, provided that said credits are retained.
21	*
22	* This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
23	* the utmost extent permitted by applicable law, neither express nor
24	* implied; without malicious intent or gross negligence. In no event
25	* may a licensor, author or contributor be held liable for indirect,
26	* direct, other damage, loss, or other issues arising in any way out
27	* of dealing in the work, even if advised of the possibility of such
28	* damage or existence of a defect, except proven that it results out
29	* of said person's immediate fault when using the work as intended.
30	*/
31
32	#ifndef DBIF_H
33	#define DBIF_H
34
35	#include "sqlite3.h"
36
37	/* stolen from mksh's sh.h */
38	#ifdef EXTERN
39	# define I__(i) = i
40	#else
41	# define I__(i)
42	# define EXTERN extern
43	# define EXTERN_DEFINED
44	#endif
45
46	/* debugging */
47	#define D(level, fmt, ...) do { \
48	if (debug >= (level)) \
49	fprintf(stderr, (fmt), ##__VA_ARGS__); \
50	} while (0)
51
52	__BEGIN_DECLS
53	EXTERN int debug I__(0);
54	EXTERN sqlite3 *db I__(NULL);
55
56	/* dbif.c */
57	void dberr(int, const char *, ...)
58	__attribute__((format (printf, 2, 3)))
59	__attribute__((noreturn));
60	#define dbexecv(cb, cbarg, sqlfmt, ...) dbexecv_(__FILE__, __LINE__, \
61	__func__, (cb), (cbarg), (sqlfmt), __VA_ARGS__)
62	int dbexecv_(const char , unsigned, const char , sqlite3_callback,
63	void , const char , ...)
64	__attribute__((nonnull (6)))
65	__attribute__((format (printf, 6, 7)));
66
67	#define xdbexecv(et, cb, cbarg, sqlfmt, ...) do { \
68	if (dbexecv_(__FILE__, __LINE__, __func__, \
69	(cb), (cbarg), (sqlfmt), __VA_ARGS__)) \
70	dberr(1, et ? et : "processing SQL stmt"); \
71	} while (0)
72
73	#ifdef NFOTISER
74	#ifdef __GLIBC__
75	/* fgetln.c */
76	char fgetln(FILE , size_t *);
77	/* strlfun.c */
78	size_t strlcat(char , const char , size_t);
79	size_t strlcpy(char , const char , size_t);
80	#endif
81	#endif
82	__END_DECLS
83
84	/* useful stuff */
85	#define xmalloc(size) ({ \
86	void *xmalloc_ptr; \
87	size_t xmalloc_sz = (size); \
88	\
89	if ((xmalloc_ptr = malloc(xmalloc_sz)) == NULL) \
90	err(255, "cannot allocate %zu bytes", \
91	xmalloc_sz); \
92	(xmalloc_ptr); \
93	})
94
95	#define xrealloc(ptr, size) ({ \
96	void *xrealloc_newptr; \
97	size_t xrealloc_sz = (size); \
98	\
99	xrealloc_newptr = realloc((ptr), xrealloc_sz); \
100	if (xrealloc_newptr == NULL) \
101	err(255, "cannot realloc to %zu bytes", \
102	xrealloc_sz); \
103	(xrealloc_newptr); \
104	})
105
106	#define str_save(s) ({ \
107	const char *str_save_s = (s); \
108	\
109	(str_nsave(str_save_s, strlen(str_save_s))); \
110	})
111
112	#define str_nsave(s, n) ({ \
113	char *str_nsave_ptr; \
114	size_t str_nsave_sz = (n); \
115	\
116	str_nsave_ptr = xmalloc(str_nsave_sz + 1); \
117	memcpy(str_nsave_sz, (s), str_nsave_sz); \
118	str_nsave_ptr[str_nsave_sz] = '\0'; \
119	(str_nsave_ptr); \
120	})
121
122	#define str_add(d, s) ({ \
123	const char *str_add_s = (s); \
124	\
125	(str_nadd((d), str_add_s, strlen(str_add_s))); \
126	})
127
128	#define str_nadd(d, s, n) ({ \
129	char str_nadd_ptr = (d), str_nadd_newptr; \
130	size_t str_nadd_sz, str_nadd_addsz = (n); \
131	\
132	str_nadd_sz = strlen(str_nadd_ptr); \
133	str_nadd_newptr = xrealloc(str_nadd_ptr, \
134	str_nadd_sz + str_nadd_addsz + 1); \
135	str_nadd_ptr = str_nadd_newptr + str_nadd_sz; \
136	memcpy(str_nadd_ptr, (s), str_nadd_addsz); \
137	str_nadd_ptr[str_nadd_addsz] = '\0'; \
138	(str_nadd_newptr); \
139	})
140
141	#endif