Mercurial > trustbridge

annotate common/strhelp.h @ 248:9f0865dc8b14

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Add accessor to check if the certificate should be installed
author Andre Heinecke <aheinecke@intevation.de>
date Mon, 31 Mar 2014 08:03:20 +0000
parents 6b4ad6ccc48e
children c596568fa45b
rev   line source
60
6acb1dae6185 Use strn functions and improve error handling.
Andre Heinecke <aheinecke@intevation.de>
parents: 59
diff changeset
1 #ifndef STRHELP_H
6acb1dae6185 Use strn functions and improve error handling.
Andre Heinecke <aheinecke@intevation.de>
parents: 59
diff changeset
2 #define STRHELP_H
118
d6a74464430b Fix doxygen documentation.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
3
184
1f44aae4528e Add C linkage for strhelp. Check for data in commontest.
Andre Heinecke <aheinecke@intevation.de>
parents: 160
diff changeset
4 #ifdef __cplusplus
1f44aae4528e Add C linkage for strhelp. Check for data in commontest.
Andre Heinecke <aheinecke@intevation.de>
parents: 160
diff changeset
5 extern "C" {
1f44aae4528e Add C linkage for strhelp. Check for data in commontest.
Andre Heinecke <aheinecke@intevation.de>
parents: 160
diff changeset
6 #endif
1f44aae4528e Add C linkage for strhelp. Check for data in commontest.
Andre Heinecke <aheinecke@intevation.de>
parents: 160
diff changeset
7
131
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 120
diff changeset
8 #include <stdbool.h>
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 120
diff changeset
9
118
d6a74464430b Fix doxygen documentation.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
10 /**
d6a74464430b Fix doxygen documentation.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
11 * @file strhelp.h
d6a74464430b Fix doxygen documentation.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
12 * @brief Helper functions for c strings and memory management
d6a74464430b Fix doxygen documentation.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
13 * @details strhelp contains terminating memory allocation functions and
d6a74464430b Fix doxygen documentation.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
14 * some conveniance functions to work with c strings or arrays of c
d6a74464430b Fix doxygen documentation.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
15 * strings.
59
3f6378647371 Start work on cinst. Strhelp new helpers to work with C String
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
16 */
118
d6a74464430b Fix doxygen documentation.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
17
59
3f6378647371 Start work on cinst. Strhelp new helpers to work with C String
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
18 void *xmalloc( size_t n );
3f6378647371 Start work on cinst. Strhelp new helpers to work with C String
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
19 void *xrealloc( void *a, size_t n );
3f6378647371 Start work on cinst. Strhelp new helpers to work with C String
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
20 void *xcalloc( size_t n, size_t m );
60
6acb1dae6185 Use strn functions and improve error handling.
Andre Heinecke <aheinecke@intevation.de>
parents: 59
diff changeset
21 char *xstrndup( const char *string, const size_t len );
59
3f6378647371 Start work on cinst. Strhelp new helpers to work with C String
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
22
3f6378647371 Start work on cinst. Strhelp new helpers to work with C String
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
23 /**
118
d6a74464430b Fix doxygen documentation.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
24 * @brief Returns the length of the given %NULL-terminated
d6a74464430b Fix doxygen documentation.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
25 * string array str_array.
120
702033705bb8 Removed trailing whitespace.
Sascha Wilde <wilde@intevation.de>
parents: 118
diff changeset
26 * @param[in] str_array a %NULL-terminated array of strings
118
d6a74464430b Fix doxygen documentation.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
27 * @returns length of str_array.
59
3f6378647371 Start work on cinst. Strhelp new helpers to work with C String
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
28 */
3f6378647371 Start work on cinst. Strhelp new helpers to work with C String
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
29 unsigned int strv_length (char **str_array);
3f6378647371 Start work on cinst. Strhelp new helpers to work with C String
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
30
118
d6a74464430b Fix doxygen documentation.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
31 /**
d6a74464430b Fix doxygen documentation.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
32 * @brief append a string to a NULL terminated array of strings.
59
3f6378647371 Start work on cinst. Strhelp new helpers to work with C String
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
33 *
118
d6a74464430b Fix doxygen documentation.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
34 * @param[inout] pArray pointer to the NULL terminated list of string pointers.
59
3f6378647371 Start work on cinst. Strhelp new helpers to work with C String
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
35 * @param[in] string pointer to the string to append to the list.
60
6acb1dae6185 Use strn functions and improve error handling.
Andre Heinecke <aheinecke@intevation.de>
parents: 59
diff changeset
36 * @param[in] len length of the string to append to the list
118
d6a74464430b Fix doxygen documentation.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
37 */
116
c602d8cfa619 Refactoring: unified naming of string vector functions.
Sascha Wilde <wilde@intevation.de>
parents: 91
diff changeset
38 void strv_append (char ***pArray, const char *string, const size_t len);
59
3f6378647371 Start work on cinst. Strhelp new helpers to work with C String
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
39
118
d6a74464430b Fix doxygen documentation.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
40 /**
d6a74464430b Fix doxygen documentation.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
41 * @brief append a string to another string.
59
3f6378647371 Start work on cinst. Strhelp new helpers to work with C String
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
42 *
3f6378647371 Start work on cinst. Strhelp new helpers to work with C String
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
43 * @param[inout] pDst pointer to the string to be extended.
91
80ab2168760f Also add output size handling to str_append_str
Andre Heinecke <aheinecke@intevation.de>
parents: 60
diff changeset
44 * @param[inout] dst_len length of the dst string. Will be modified.
59
3f6378647371 Start work on cinst. Strhelp new helpers to work with C String
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
45 * @param[in] appendage pointer to the string to append.
60
6acb1dae6185 Use strn functions and improve error handling.
Andre Heinecke <aheinecke@intevation.de>
parents: 59
diff changeset
46 * @param[in] len length of the string to append.
118
d6a74464430b Fix doxygen documentation.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
47 */
116
c602d8cfa619 Refactoring: unified naming of string vector functions.
Sascha Wilde <wilde@intevation.de>
parents: 91
diff changeset
48 void str_append_str (char **pDst, size_t *dst_len, const char *appendage,
91
80ab2168760f Also add output size handling to str_append_str
Andre Heinecke <aheinecke@intevation.de>
parents: 60
diff changeset
49 const size_t len);
59
3f6378647371 Start work on cinst. Strhelp new helpers to work with C String
Andre Heinecke <aheinecke@intevation.de>
parents:
diff changeset
50
118
d6a74464430b Fix doxygen documentation.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
51 /**
d6a74464430b Fix doxygen documentation.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
52 * @brief Frees the given %NULL-terminated string array.
120
702033705bb8 Removed trailing whitespace.
Sascha Wilde <wilde@intevation.de>
parents: 118
diff changeset
53 * @param[inout] str_array a %NULL-terminated array of strings
118
d6a74464430b Fix doxygen documentation.
Sascha Wilde <wilde@intevation.de>
parents: 116
diff changeset
54 */
116
c602d8cfa619 Refactoring: unified naming of string vector functions.
Sascha Wilde <wilde@intevation.de>
parents: 91
diff changeset
55 void strv_free (char **str_array);
131
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 120
diff changeset
56
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 120
diff changeset
57 /**
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 120
diff changeset
58 * @brief Checks whether two strings exactly match
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 120
diff changeset
59 * @param[in] s1 the first string
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 120
diff changeset
60 * @param[in] s2 the second string
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 120
diff changeset
61 * @returns true if s1 and s2 are equal
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 120
diff changeset
62 */
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 120
diff changeset
63 bool str_equal (char *s1, char *s2);
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 120
diff changeset
64
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 120
diff changeset
65 /**
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 120
diff changeset
66 * @brief Checks whether s2 exactly matches the beginning of s1.
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 120
diff changeset
67 * @param[in] s1 the string who's beginning is searched
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 120
diff changeset
68 * @param[in] s2 the string which is searched for
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 120
diff changeset
69 * @returns true if s1 starts with s2, false otherwise
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 120
diff changeset
70 */
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 120
diff changeset
71 bool str_starts_with (char *s1, char *s2);
9104b1b2e4da Added string comparison functions.
Sascha Wilde <wilde@intevation.de>
parents: 120
diff changeset
72
133
c719d3fdbc15 Added functrion to trim white space from string.
Sascha Wilde <wilde@intevation.de>
parents: 131
diff changeset
73 /**
c719d3fdbc15 Added functrion to trim white space from string.
Sascha Wilde <wilde@intevation.de>
parents: 131
diff changeset
74 * @brief Trims all white space from the start and end of string.
c719d3fdbc15 Added functrion to trim white space from string.
Sascha Wilde <wilde@intevation.de>
parents: 131
diff changeset
75 * @details the start of the string is trimmed by setting *s to the
c719d3fdbc15 Added functrion to trim white space from string.
Sascha Wilde <wilde@intevation.de>
parents: 131
diff changeset
76 * first non white space character. The end is trimmed by setting the
c719d3fdbc15 Added functrion to trim white space from string.
Sascha Wilde <wilde@intevation.de>
parents: 131
diff changeset
77 * first character after the last non white space character to \0.
c719d3fdbc15 Added functrion to trim white space from string.
Sascha Wilde <wilde@intevation.de>
parents: 131
diff changeset
78 * @param[inout] s ponter to the string to strip
c719d3fdbc15 Added functrion to trim white space from string.
Sascha Wilde <wilde@intevation.de>
parents: 131
diff changeset
79 */
c719d3fdbc15 Added functrion to trim white space from string.
Sascha Wilde <wilde@intevation.de>
parents: 131
diff changeset
80 bool str_trim (char **s);
c719d3fdbc15 Added functrion to trim white space from string.
Sascha Wilde <wilde@intevation.de>
parents: 131
diff changeset
81
160
bf4bfd8843bd Add memory allocating base64 decode function
Andre Heinecke <aheinecke@intevation.de>
parents: 133
diff changeset
82 /** @brief decode base64 encoded data
bf4bfd8843bd Add memory allocating base64 decode function
Andre Heinecke <aheinecke@intevation.de>
parents: 133
diff changeset
83 *
bf4bfd8843bd Add memory allocating base64 decode function
Andre Heinecke <aheinecke@intevation.de>
parents: 133
diff changeset
84 * The memory allocated for dest needs to be free'd by the
bf4bfd8843bd Add memory allocating base64 decode function
Andre Heinecke <aheinecke@intevation.de>
parents: 133
diff changeset
85 * caller.
bf4bfd8843bd Add memory allocating base64 decode function
Andre Heinecke <aheinecke@intevation.de>
parents: 133
diff changeset
86 *
239
6b4ad6ccc48e Change the specification of str_b64_decode so that it matches the
Andre Heinecke <aheinecke@intevation.de>
parents: 184
diff changeset
87 * _Input warning:_
6b4ad6ccc48e Change the specification of str_b64_decode so that it matches the
Andre Heinecke <aheinecke@intevation.de>
parents: 184
diff changeset
88 * If the input contains invalid base64 characters an error
6b4ad6ccc48e Change the specification of str_b64_decode so that it matches the
Andre Heinecke <aheinecke@intevation.de>
parents: 184
diff changeset
89 * is returned.
6b4ad6ccc48e Change the specification of str_b64_decode so that it matches the
Andre Heinecke <aheinecke@intevation.de>
parents: 184
diff changeset
90 *
6b4ad6ccc48e Change the specification of str_b64_decode so that it matches the
Andre Heinecke <aheinecke@intevation.de>
parents: 184
diff changeset
91 * If the input is invalid base64 but consists of valid
6b4ad6ccc48e Change the specification of str_b64_decode so that it matches the
Andre Heinecke <aheinecke@intevation.de>
parents: 184
diff changeset
92 * base64 characters _no error_ is returned and dst contains
6b4ad6ccc48e Change the specification of str_b64_decode so that it matches the
Andre Heinecke <aheinecke@intevation.de>
parents: 184
diff changeset
93 * the valid input up to the error.
6b4ad6ccc48e Change the specification of str_b64_decode so that it matches the
Andre Heinecke <aheinecke@intevation.de>
parents: 184
diff changeset
94 *
160
bf4bfd8843bd Add memory allocating base64 decode function
Andre Heinecke <aheinecke@intevation.de>
parents: 133
diff changeset
95 * @param [out] dst Pointer to the destination. Needs to be NULL
bf4bfd8843bd Add memory allocating base64 decode function
Andre Heinecke <aheinecke@intevation.de>
parents: 133
diff changeset
96 * @param [out] dst_size Size allocated for the destination.
bf4bfd8843bd Add memory allocating base64 decode function
Andre Heinecke <aheinecke@intevation.de>
parents: 133
diff changeset
97 * @param [in] src Pointer to the base64 encoded data.
bf4bfd8843bd Add memory allocating base64 decode function
Andre Heinecke <aheinecke@intevation.de>
parents: 133
diff changeset
98 * @param [in] src_size Size of the encoded data.
bf4bfd8843bd Add memory allocating base64 decode function
Andre Heinecke <aheinecke@intevation.de>
parents: 133
diff changeset
99 *
bf4bfd8843bd Add memory allocating base64 decode function
Andre Heinecke <aheinecke@intevation.de>
parents: 133
diff changeset
100 * @returns 0 on success a polarssl error or -1 otherwise
bf4bfd8843bd Add memory allocating base64 decode function
Andre Heinecke <aheinecke@intevation.de>
parents: 133
diff changeset
101 */
bf4bfd8843bd Add memory allocating base64 decode function
Andre Heinecke <aheinecke@intevation.de>
parents: 133
diff changeset
102 int str_base64_decode(char **dst, size_t *dst_size, char *src,
bf4bfd8843bd Add memory allocating base64 decode function
Andre Heinecke <aheinecke@intevation.de>
parents: 133
diff changeset
103 size_t src_size);
184
1f44aae4528e Add C linkage for strhelp. Check for data in commontest.
Andre Heinecke <aheinecke@intevation.de>
parents: 160
diff changeset
104 #ifdef __cplusplus
1f44aae4528e Add C linkage for strhelp. Check for data in commontest.
Andre Heinecke <aheinecke@intevation.de>
parents: 160
diff changeset
105 }
1f44aae4528e Add C linkage for strhelp. Check for data in commontest.
Andre Heinecke <aheinecke@intevation.de>
parents: 160
diff changeset
106 #endif
160
bf4bfd8843bd Add memory allocating base64 decode function
Andre Heinecke <aheinecke@intevation.de>
parents: 133
diff changeset
107
60
6acb1dae6185 Use strn functions and improve error handling.
Andre Heinecke <aheinecke@intevation.de>
parents: 59
diff changeset
108 #endif
http://wald.intevation.org/projects/trustbridge/