libstring.c File Reference

Helper function for string handling. More...

#include "arch.h"
#include <stdlib.h>

Go to the source code of this file.

Functions
char *	cbmlibmisc_stralloc (unsigned int Length)
	allocate memory for a string of a given size More...
char *	cbmlibmisc_strdup (const char *const OldString)
	Duplicate a given string. More...
char *	cbmlibmisc_strndup (const char *const OldString, size_t Length)
	Duplicate a prefix of a given string. More...
void	cbmlibmisc_strfree (const char *String)
	Free a string. More...
char *	cbmlibmisc_strcat (const char *First, const char *Second)
	Concatenate two strings. More...

Detailed Description

Helper function for string handling.

---

Author

Spiro Trikaliotis

Definition in file libstring.c.

Function Documentation

char* cbmlibmisc_stralloc

(

unsigned int

Length

)

allocate memory for a string of a given size

This function allocates memory for a string with a given size.

Parameters

Length

The size of the string. The trailing zero does not count, that is, extra space for an additional zero is allocated.

Returns

NULL on failure; otherwise, a pointer to the newly allocated memory.

Remarks

The string must be freed with cbmlibmisc_strfree().

Definition at line 41 of file libstring.c.

char* cbmlibmisc_strcat	(	const char *	First,
		const char *	Second
	)

Concatenate two strings.

This function concatenates two strings and returns the result in a malloc()ed memory region.

Parameters

First	The first string to concatenate. If this pointer is NULL, an empty string is assumed.
Second	The second string to concatenate. If this pointer is NULL, an empty string is assumed.

Returns

The malloc()ed memory for the concatenated string, or NULL if there was not enough memory.

Remarks

The string must be freed with cbmlibmisc_strfree().

Definition at line 202 of file libstring.c.

Referenced by cbm_get_debugging_flags(), configuration_get_default_filename(), opencbm_configuration_open(), and opencbm_plugin_install_do_install().

char* cbmlibmisc_strdup

(

const char *const

OldString

)

Duplicate a given string.

This function allocates memory for a string. This string is initialised with a copy of the given parameter string.

Parameters

OldString

The string to duplicate. Can also be NULL.

Returns

NULL on failure; otherwise, a pointer to the newly allocated string.

Remarks

If OldString is given as a NULL pointer, this function allocates an empty string (not a NULL pointer)

The string must be freed with cbmlibmisc_strfree().

Definition at line 84 of file libstring.c.

Referenced by cbm_get_debugging_flags(), cbm_get_driver_name_ex(), cbmlibmisc_strndup(), configuration_get_default_filename(), opencbm_configuration_get_data(), opencbm_configuration_open(), and opencbm_configuration_set_data().

void cbmlibmisc_strfree

(

const char *

String

)

Free a string.

This function frees a string which has been previously allocated by any of the functions in this file.

Parameters

String

A pointer to the string to be freed.

Definition at line 172 of file libstring.c.

Referenced by cbm_driver_open_ex(), cbm_get_debugging_flags(), cbm_get_driver_name_ex(), get_all_plugins(), opencbm_configuration_open(), opencbm_configuration_set_data(), opencbm_plugin_get_all_plugin_names(), opencbm_plugin_install_do_install(), opencbm_plugin_install_generic(), opencbm_plugin_install_plugin_data(), and plugin_is_active().

char* cbmlibmisc_strndup	(	const char *const	OldString,
		size_t	Length
	)

Duplicate a prefix of a given string.

This function allocates memory for a string. This string is initialised with a copy of a prefix of the given parameter string.

Parameters

OldString	The string to duplicate. Can also be NULL.
Length	The size of the prefix to copy.

Returns

NULL on failure; otherwise, a pointer to the newly allocated string.

Remarks

If the OldString has Length characters or more, the first Length characters are returned in the new copy of the string.

If the OldString has less than Length characters, a full copy of OldString is returned.

Remarks

If OldString is given as a NULL pointer, this function allocates an empty string (not a NULL pointer)

The string must be freed with cbmlibmisc_strfree().

Definition at line 136 of file libstring.c.

References cbmlibmisc_strdup().