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
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
/* util.h
*
* Copyright (C) 2008 Till Kamppeter <till.kamppeter@gmail.com>
* Copyright (C) 2008 Lars Uebernickel <larsuebernickel@gmx.de>
*
* This file is part of foomatic-rip.
*
* Foomatic-rip is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Foomatic-rip is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef util_h
#define util_h
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include "config.h"
#include <string.h>
#include <stdio.h>
extern const char* shellescapes;
int isempty(const char *string);
const char * temp_dir();
int prefixcmp(const char *str, const char *prefix);
int prefixcasecmp(const char *str, const char *prefix);
int startswith(const char *str, const char *prefix);
int endswith(const char *str, const char *postfix);
const char * skip_whitespace(const char *str);
void strlower(char *dest, size_t destlen, const char *src);
/*
* Like strncpy, but omits characters for which omit_func returns true
* It also assures that dest is zero terminated.
* Returns a pointer to the position in 'src' right after the last byte that has been copied.
*/
const char * strncpy_omit(char* dest, const char* src, size_t n, int (*omit_func)(int));
int omit_unprintables(int c);
int omit_shellescapes(int c);
int omit_specialchars(int c);
int omit_whitespace(int c);
int omit_whitespace_newline(int c);
#ifndef HAVE_STRCASESTR
/* strcasestr() is not available under Solaris */
char * strcasestr (const char *haystack, const char *needle);
#endif
/* TODO check for platforms which already have strlcpy and strlcat */
/* Copy at most size-1 characters from src to dest
dest will always be \0 terminated (unless size == 0)
returns strlen(src) */
size_t strlcpy(char *dest, const char *src, size_t size);
size_t strlcat(char *dest, const char *src, size_t size);
/* Replace all occurences of each of the characters in 'chars' by 'repl' */
void strrepl(char *str, const char *chars, char repl);
/* Replace all occurences of each of the characters in 'chars' by 'repl',
but do not allow consecutive 'repl' chars */
void strrepl_nodups(char *str, const char *chars, char repl);
/* clears 'str' with \0s */
void strclr(char *str);
char * strnchr(const char *str, int c, size_t n);
void escapechars(char *dest, size_t size, const char *src, const char *esc_chars);
/* copies characters from 'src' to 'dest', until 'src' contains a character from 'stopchars'
will not copy more than 'max' chars
dest will be zero terminated in either case
returns a pointer to the position right after the last byte that has been copied
*/
const char * strncpy_tochar(char *dest, const char *src, size_t max, const char *stopchars);
/* 'paths' is a colon seperated list of paths (like $PATH)
* 'found_in' may be NULL if it is not needed */
int find_in_path(const char *progname, const char *paths, char *found_in);
/* extracts the base name of 'path', i.e. only the filename, without path or extension */
void file_basename(char *dest, const char *path, size_t dest_size);
/* if 'path' is relative, prepend cwd */
void make_absolute_path(char *path, int len);
int is_true_string(const char *str); /* "1", "Yes", "On", "True" */
int is_false_string(const char *str); /* "0", "No", "Off", "False", "None" */
int digit(char c); /* returns 0-9 if c is a digit, otherwise -1 */
int line_count(const char *str);
/* returns the index of the beginning of the line_number'th line in str */
int line_start(const char *str, int line_number);
/* Replace hex notation for unprintable characters in PPD files
by the actual characters ex: "<0A>" --> chr(hex("0A")) */
void unhexify(char *dest, size_t size, const char *src);
void extract_command(size_t *start, size_t *end, const char *cmdline, const char *cmd);
char ** argv_split(const char *string, const char *separators, int *cntp);
size_t argv_count(char **argv);
void argv_free(char **argv);
/*
* Returns non-zero if 'cmdline' calls 'cmd' in some way
*/
int contains_command(const char *cmdline, const char *cmd);
int copy_file(FILE *dest, FILE *src, const char *alreadyread, size_t alreadyread_len);
/* Dynamic string */
typedef struct dstr {
char *data;
size_t len;
size_t alloc;
} dstr_t;
dstr_t * create_dstr();
void free_dstr(dstr_t *ds);
void dstrclear(dstr_t *ds);
void dstrassure(dstr_t *ds, size_t alloc);
void dstrcpy(dstr_t *ds, const char *src);
void dstrncpy(dstr_t *ds, const char *src, size_t n);
void dstrncat(dstr_t *ds, const char *src, size_t n);
void dstrcpyf(dstr_t *ds, const char *src, ...);
void dstrcat(dstr_t *ds, const char *src);
void dstrcatf(dstr_t *ds, const char *src, ...);
void dstrputc(dstr_t *ds, int c);
size_t fgetdstr(dstr_t *ds, FILE *stream); /* returns number of characters read */
int dstrreplace(dstr_t *ds, const char *find, const char *repl, int start);
void dstrprepend(dstr_t *ds, const char *str);
void dstrinsert(dstr_t *ds, int idx, const char *str);
void dstrinsertf(dstr_t *ds, int idx, const char *str, ...);
void dstrremove(dstr_t *ds, int idx, size_t count);
void dstrcatline(dstr_t *ds, const char *str); /* appends the first line from str to ds (incl. \n) */
int dstrendswith(dstr_t *ds, const char *str);
void dstrfixnewlines(dstr_t *ds);
void dstrremovenewline(dstr_t *ds);
void dstrtrim(dstr_t *ds);
void dstrtrim_right(dstr_t *ds);
/* Doubly linked list of void pointers */
typedef struct listitem_s {
void *data;
struct listitem_s *prev, *next;
} listitem_t;
typedef struct {
listitem_t *first, *last;
} list_t;
list_t * list_create();
list_t * list_create_from_array(int count, void ** data); /* array values are NOT copied */
void list_free(list_t *list);
size_t list_item_count(list_t *list);
list_t * list_copy(list_t *list);
void list_prepend(list_t *list, void *data);
void list_append(list_t *list, void *data);
void list_remove(list_t *list, listitem_t *item);
listitem_t * list_get(list_t *list, int idx);
/* Argument values may be seperated from their keys in the following ways:
- with whitespace (i.e. it is in the next list entry)
- with a '='
- not at all
*/
listitem_t * arglist_find(list_t *list, const char *name);
listitem_t * arglist_find_prefix(list_t *list, const char *name);
char * arglist_get_value(list_t *list, const char *name);
char * arglist_get(list_t *list, int idx);
int arglist_remove(list_t *list, const char *name);
int arglist_remove_flag(list_t *list, const char *name);
#endif
|