summaryrefslogtreecommitdiff
path: root/src/buffer.h
blob: c381652cda226d4b11cc89f7a557ca9254df1665 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
#ifndef _BUFFER_H_
#define _BUFFER_H_

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include "settings.h"

#include <stdlib.h>
#include <sys/types.h>
#include <stdio.h>

typedef struct {
	char *ptr;

	size_t used;
	size_t size;
} buffer;

typedef struct {
	buffer **ptr;

	size_t used;
	size_t size;
} buffer_array;

typedef struct {
	char *ptr;

	size_t offset; /* input-pointer */

	size_t used;   /* output-pointer */
	size_t size;
} read_buffer;

buffer_array* buffer_array_init(void);
void buffer_array_free(buffer_array *b);
void buffer_array_reset(buffer_array *b);
buffer *buffer_array_append_get_buffer(buffer_array *b);

buffer* buffer_init(void);
buffer* buffer_init_buffer(buffer *b);
buffer* buffer_init_string(const char *str);
void buffer_free(buffer *b);
void buffer_reset(buffer *b);

int buffer_prepare_copy(buffer *b, size_t size);
int buffer_prepare_append(buffer *b, size_t size);

int buffer_copy_string(buffer *b, const char *s);
int buffer_copy_string_len(buffer *b, const char *s, size_t s_len);
int buffer_copy_string_buffer(buffer *b, const buffer *src);
int buffer_copy_string_hex(buffer *b, const char *in, size_t in_len);

int buffer_copy_long(buffer *b, long val);

int buffer_copy_memory(buffer *b, const char *s, size_t s_len);

int buffer_append_string(buffer *b, const char *s);
int buffer_append_string_len(buffer *b, const char *s, size_t s_len);
int buffer_append_string_buffer(buffer *b, const buffer *src);
int buffer_append_string_lfill(buffer *b, const char *s, size_t maxlen);
int buffer_append_string_rfill(buffer *b, const char *s, size_t maxlen);

int buffer_append_long_hex(buffer *b, unsigned long len);
int buffer_append_long(buffer *b, long val);

#if defined(SIZEOF_LONG) && (SIZEOF_LONG == SIZEOF_OFF_T)
#define buffer_copy_off_t(x, y)		buffer_copy_long(x, y)
#define buffer_append_off_t(x, y)	buffer_append_long(x, y)
#else
int buffer_copy_off_t(buffer *b, off_t val);
int buffer_append_off_t(buffer *b, off_t val);
#endif

int buffer_append_memory(buffer *b, const char *s, size_t s_len);

char * buffer_search_string_len(buffer *b, const char *needle, size_t len);

int buffer_is_empty(buffer *b);
int buffer_is_equal(buffer *a, buffer *b);
int buffer_is_equal_right_len(buffer *a, buffer *b, size_t len);
int buffer_is_equal_string(buffer *a, const char *s, size_t b_len);
int buffer_is_equal_caseless_string(buffer *a, const char *s, size_t b_len);
int buffer_caseless_compare(const char *a, size_t a_len, const char *b, size_t b_len);

typedef enum {
	ENCODING_UNSET,
	ENCODING_REL_URI, /* for coding a rel-uri (/with space/and%percent) nicely as part of a href */
	ENCODING_REL_URI_PART, /* same as ENC_REL_URL plus coding / too as %2F */
	ENCODING_HTML,         /* & becomes &amp; and so on */
	ENCODING_MINIMAL_XML,  /* minimal encoding for xml */
	ENCODING_HEX,          /* encode string as hex */
	ENCODING_HTTP_HEADER   /* encode \n with \t\n */
} buffer_encoding_t;

int buffer_append_string_encoded(buffer *b, const char *s, size_t s_len, buffer_encoding_t encoding);

int buffer_urldecode_path(buffer *url);
int buffer_urldecode_query(buffer *url);
int buffer_path_simplify(buffer *dest, buffer *src);

int buffer_to_lower(buffer *b);
int buffer_to_upper(buffer *b);

/** deprecated */
int LI_ltostr(char *buf, long val);
char hex2int(unsigned char c);
char int2hex(char i);

int light_isdigit(int c);
int light_isxdigit(int c);
int light_isalpha(int c);
int light_isalnum(int c);

#define BUFFER_APPEND_STRING_CONST(x, y) \
	buffer_append_string_len(x, y, sizeof(y) - 1)

#define BUFFER_COPY_STRING_CONST(x, y) \
	buffer_copy_string_len(x, y, sizeof(y) - 1)

#define BUFFER_APPEND_SLASH(x) \
	if (x->used > 1 && x->ptr[x->used - 2] != '/') { BUFFER_APPEND_STRING_CONST(x, "/"); }

#define CONST_STR_LEN(x) x, x ? sizeof(x) - 1 : 0
#define CONST_BUF_LEN(x) x->ptr, x->used ? x->used - 1 : 0


#define SEGFAULT() do { fprintf(stderr, "%s.%d: aborted\n", __FILE__, __LINE__); abort(); } while(0)
#define UNUSED(x) ( (void)(x) )

#endif