numam-spdk/include/spdk/string.h

/*-
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/** \file
 * String utility functions
 */

#ifndef SPDK_STRING_H
#define SPDK_STRING_H

#ifdef __cplusplus
extern "C" {
#endif

#include <stddef.h>

/**
 * sprintf with automatic buffer allocation.
 *
 * The return value is the formatted string,
 * which should be passed to free() when no longer needed,
 * or NULL on failure.
 */
char *spdk_sprintf_alloc(const char *format, ...) __attribute__((format(printf, 1, 2)));

/**
 * Convert string to lowercase in place.
 *
 * \param s String to convert to lowercase.
 */
char *spdk_strlwr(char *s);

/**
 * Parse a delimited string with quote handling.
 *
 * \param stringp Pointer to starting location in string. *stringp will be updated to point to the
 * start of the next field, or NULL if the end of the string has been reached.
 * \param delim Null-terminated string containing the list of accepted delimiters.
 *
 * \return Pointer to beginning of the current field.
 *
 * Note that the string will be modified in place to add the string terminator to each field.
 */
char *spdk_strsepq(char **stringp, const char *delim);

/**
 * Trim whitespace from a string in place.
 *
 * \param s String to trim.
 */
char *spdk_str_trim(char *s);

/**
 * Copy a string into a fixed-size buffer, padding extra bytes with a specific character.
 *
 * \param dst Pointer to destination fixed-size buffer to fill.
 * \param src Pointer to source null-terminated string to copy into dst.
 * \param size Number of bytes to fill in dst.
 * \param pad Character to pad extra space in dst beyond the size of src.
 *
 * If src is longer than size, only size bytes will be copied.
 */
void spdk_strcpy_pad(void *dst, const char *src, size_t size, int pad);

#ifdef __cplusplus
}
#endif

#endif