1 #include "util.h"

     2 

     3 #include <stddef.h>

     4 #include <stdarg.h>

     5 #include <stdlib.h>

     6 #include <string.h>

     7 #include <stdio.h>

     8 

     9 char *flib_asprintf(const char *fmt, ...) {

    10 	va_list argp;

    11 	va_start(argp, fmt);

    12 	char *result = flib_vasprintf(fmt, argp);

    13 	va_end(argp);

    14 	return result;

    15 }

    16 

    17 char *flib_vasprintf(const char *fmt, va_list args) {

    18 	char *result = NULL;

    19 	int requiredSize = vsnprintf(NULL, 0, fmt, args)+1;				// Figure out how much memory we need,

    20 	if(requiredSize>=0) {

    21 		char *tmpbuf = malloc(requiredSize);						// allocate it

    22 		if(tmpbuf) {

    23 			if(vsnprintf(tmpbuf, requiredSize, fmt, args)>=0) {		// and then do the actual formatting.

    24 				result = tmpbuf;

    25 				tmpbuf = NULL;

    26 			}

    27 		}

    28 		free(tmpbuf);

    29 	}

    30 	return result;

    31 }

    32 

    33 char *flib_strdupnull(const char *str) {

    34 	if(!str) {

    35 		return NULL;

    36 	}

    37 	return flib_asprintf("%s", str);

    38 }

    39 

    40 void *flib_bufdupnull(const void *buf, size_t size) {

    41 	if(!buf || size==0) {

    42 		return NULL;

    43 	}

    44 	void *result = malloc(size);

    45 	if(result) {

    46 		memcpy(result, buf, size);

    47 	}

    48 	return result;

    49 }