project_files/frontlib/util/util.c
author Medo <smaxein@googlemail.com>
Sat, 09 Jun 2012 03:28:38 +0200
changeset 7179 f84805e6df03
parent 7177 project_files/frontlib/util.c@bf6cf4dd847a
child 7224 5143861c83bd
permissions -rw-r--r--
Implemented game launching API for the frontlib. It is still buggy though, and not all game settings can be conveniently created/modified yet.
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#include "util.h"
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#include <stddef.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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char *flib_asprintf(const char *fmt, ...) {
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	va_list argp;
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	va_start(argp, fmt);
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	char *result = flib_vasprintf(fmt, argp);
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	va_end(argp);
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	return result;
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}
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char *flib_vasprintf(const char *fmt, va_list args) {
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	char *result = NULL;
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	int requiredSize = vsnprintf(NULL, 0, fmt, args)+1;				// Figure out how much memory we need,
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	if(requiredSize>=0) {
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		char *tmpbuf = malloc(requiredSize);						// allocate it
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		if(tmpbuf) {
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			if(vsnprintf(tmpbuf, requiredSize, fmt, args)>=0) {		// and then do the actual formatting.
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				result = tmpbuf;
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				tmpbuf = NULL;
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			}
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		}
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		free(tmpbuf);
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	}
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	return result;
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}
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char *flib_strdupnull(const char *str) {
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	if(!str) {
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		return NULL;
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	}
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	return flib_asprintf("%s", str);
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}
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void *flib_bufdupnull(const void *buf, size_t size) {
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	if(!buf || size==0) {
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		return NULL;
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	}
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	void *result = malloc(size);
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	if(result) {
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		memcpy(result, buf, size);
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	}
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	return result;
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}