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annotate common/strhelp.h @ 214:aab742690bee

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Fix check for selected items and wait for bytes written. According to the documentation closing the write channel should suffice. But in testing it did not sent over everything.
author Andre Heinecke <andre.heinecke@intevation.de>
date Wed, 26 Mar 2014 17:17:19 +0100
parents 1f44aae4528e
children 6b4ad6ccc48e
rev   line source
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1 #ifndef STRHELP_H
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2 #define STRHELP_H
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4 #ifdef __cplusplus
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5 extern "C" {
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6 #endif
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7
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8 #include <stdbool.h>
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9
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10 /**
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11 * @file strhelp.h
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12 * @brief Helper functions for c strings and memory management
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13 * @details strhelp contains terminating memory allocation functions and
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14 * some conveniance functions to work with c strings or arrays of c
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15 * strings.
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16 */
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17
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18 void *xmalloc( size_t n );
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19 void *xrealloc( void *a, size_t n );
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20 void *xcalloc( size_t n, size_t m );
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21 char *xstrndup( const char *string, const size_t len );
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22
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23 /**
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24 * @brief Returns the length of the given %NULL-terminated
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25 * string array str_array.
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26 * @param[in] str_array a %NULL-terminated array of strings
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27 * @returns length of str_array.
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28 */
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29 unsigned int strv_length (char **str_array);
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31 /**
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32 * @brief append a string to a NULL terminated array of strings.
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33 *
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34 * @param[inout] pArray pointer to the NULL terminated list of string pointers.
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35 * @param[in] string pointer to the string to append to the list.
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36 * @param[in] len length of the string to append to the list
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37 */
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38 void strv_append (char ***pArray, const char *string, const size_t len);
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40 /**
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41 * @brief append a string to another string.
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42 *
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43 * @param[inout] pDst pointer to the string to be extended.
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44 * @param[inout] dst_len length of the dst string. Will be modified.
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45 * @param[in] appendage pointer to the string to append.
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46 * @param[in] len length of the string to append.
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47 */
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48 void str_append_str (char **pDst, size_t *dst_len, const char *appendage,
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49 const size_t len);
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50
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51 /**
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52 * @brief Frees the given %NULL-terminated string array.
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53 * @param[inout] str_array a %NULL-terminated array of strings
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54 */
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55 void strv_free (char **str_array);
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56
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57 /**
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58 * @brief Checks whether two strings exactly match
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59 * @param[in] s1 the first string
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60 * @param[in] s2 the second string
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61 * @returns true if s1 and s2 are equal
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62 */
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63 bool str_equal (char *s1, char *s2);
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64
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65 /**
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66 * @brief Checks whether s2 exactly matches the beginning of s1.
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67 * @param[in] s1 the string who's beginning is searched
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68 * @param[in] s2 the string which is searched for
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69 * @returns true if s1 starts with s2, false otherwise
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70 */
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71 bool str_starts_with (char *s1, char *s2);
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72
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73 /**
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74 * @brief Trims all white space from the start and end of string.
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75 * @details the start of the string is trimmed by setting *s to the
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76 * first non white space character. The end is trimmed by setting the
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77 * first character after the last non white space character to \0.
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78 * @param[inout] s ponter to the string to strip
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79 */
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80 bool str_trim (char **s);
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81
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82 /** @brief decode base64 encoded data
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83 *
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84 * The memory allocated for dest needs to be free'd by the
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85 * caller.
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86 *
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87 * @param [out] dst Pointer to the destination. Needs to be NULL
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88 * @param [out] dst_size Size allocated for the destination.
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89 * @param [in] src Pointer to the base64 encoded data.
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90 * @param [in] src_size Size of the encoded data.
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91 *
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92 * @returns 0 on success a polarssl error or -1 otherwise
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93 */
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94 int str_base64_decode(char **dst, size_t *dst_size, char *src,
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95 size_t src_size);
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96 #ifdef __cplusplus
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97 }
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98 #endif
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99
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100 #endif
http://wald.intevation.org/projects/trustbridge/