2 * Sherlock Library -- Miscellaneous Functions
4 * (c) 1997--2001 Martin Mares <mj@ucw.cz>
8 * This file should be included as the very first include in all
9 * source files, especially before all OS includes since it sets
10 * up libc feature macros.
13 #ifndef _SHERLOCK_LIB_H
14 #define _SHERLOCK_LIB_H
16 #include "lib/config.h"
18 /* Tell libc we're going to use all extensions available */
22 /* Ugly structure handling macros */
24 #define OFFSETOF(s, i) ((unsigned int)&((s *)0)->i)
25 #define SKIP_BACK(s, i, p) ((s *)((char *)p - OFFSETOF(s, i)))
26 #define ALIGN(s, a) (((s)+a-1)&~(a-1))
28 /* Some other macros */
30 #define MIN(a,b) (((a)<(b))?(a):(b))
31 #define MAX(a,b) (((a)>(b))?(a):(b))
32 #define CLAMP(x,min,max) ({ int _t=x; (_t < min) ? min : (_t > max) ? max : _t; })
33 #define ARRAY_SIZE(a) (sizeof(a)/sizeof(*(a)))
45 void open_temp(struct tempfile *, byte *);
46 void delete_temp(struct tempfile *);
51 #define L_DEBUG 'D' /* Debugging messages */
52 #define L_INFO 'I' /* Informational msgs, warnings and errors */
55 #define L_INFO_R 'i' /* Errors caused by external events */
58 #define L_FATAL '!' /* die() */
60 void log(unsigned int cat, const char *msg, ...) __attribute__((format(printf,2,3)));
61 void die(byte *, ...) NONRET;
62 void log_init(byte *);
63 void log_file(byte *);
67 #define ASSERT(x) do { if (!(x)) die("Assertion `%s' failed at %s:%d", #x, __FILE__, __LINE__); } while(0)
69 #define ASSERT(x) do { } while(0)
73 #define DBG(x,y...) log(L_DEBUG, x,##y)
75 #define DBG(x,y...) do { } while(0)
78 /* Memory allocation */
82 * The standard dmalloc macros tend to produce lots of namespace
83 * conflicts and we use only xmalloc and xfree, so we can define
84 * the stubs ourselves.
86 #define DMALLOC_DISABLE
88 #define xmalloc(size) _xmalloc_leap(__FILE__, __LINE__, size)
89 #define xrealloc(ptr,size) _xrealloc_leap(__FILE__, __LINE__, ptr, size)
90 #define xfree(ptr) _xfree_leap(__FILE__, __LINE__, ptr)
93 * Unfortunately, several libraries we might want to link to define
94 * their own xmalloc and we don't want to interfere with them, hence
97 #define xmalloc sh_xmalloc
98 void *xmalloc(unsigned);
99 void *xmalloc_zero(unsigned);
100 void *xrealloc(void *, unsigned);
101 #define xfree(x) free(x)
104 byte *stralloc(byte *);
110 struct odes { /* Object description */
112 struct mempool *pool, *local_pool;
115 struct oattr { /* Object attribute */
116 struct oattr *next, *same, *last_same;
121 void obj_dump(struct odes *);
122 struct odes *obj_new(struct mempool *);
123 void obj_free(struct odes *);
124 int obj_read(struct fastbuf *, struct odes *);
125 void obj_write(struct fastbuf *, struct odes *);
126 struct oattr *obj_find_attr(struct odes *, uns);
127 struct oattr *obj_find_attr_last(struct odes *, uns);
128 uns obj_del_attr(struct odes *, struct oattr *);
129 byte *obj_find_aval(struct odes *, uns);
130 struct oattr *obj_set_attr(struct odes *, uns, byte *);
131 struct oattr *obj_set_attr_num(struct odes *, uns, uns);
132 struct oattr *obj_add_attr(struct odes *, struct oattr *, uns, byte *);
134 /* Content-Type pattern matching and filters */
136 int match_ct_patt(byte *, byte *);
144 int wordsplit(byte *, byte **, uns);
146 /* pat(i)match.c: Matching of shell patterns */
148 int match_pattern(byte *, byte *);
149 int match_pattern_nocase(byte *, byte *);
153 void md5_to_hex(byte *, byte *);
154 void hex_to_md5(byte *, byte *);
157 #define MD5_HEX_SIZE 33
166 void init_timer(void);
171 typedef struct regex regex;
173 regex *rx_compile(byte *r);
174 void rx_free(regex *r);
175 int rx_match(regex *r, byte *s);
176 int rx_subst(regex *r, byte *by, byte *src, byte *dest, uns destlen);
184 void *mmap_file(byte *name, unsigned *len, int writeable);
185 void munmap_file(void *start, unsigned len);