read from stdin(my own template)(may be horrible)

stdin.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>


static char* addread(char* buf,char r, int length){
	char * res=malloc((length+1) * sizeof(char));
	if(res == NULL){
		fprintf(stderr,"Malloc Error\n"); /* Quit on malloc*/
		exit(1);
	}

	for(int x=0;x < length ;x++){
		res[x]=buf[x];
	}
	res[length]=r;  /* Those are offsets FFS */

		printf("In buffer:%d\n",res[length]);
	if(length > 0)
		free(buf);
	return res;
}

int 
main(int argc, char**argv){
	
	char * buf; 
	char ch;
	int length;
	for(length = 0;(ch=fgetc(stdin)) != EOF;length++){	
	if((buf=addread(buf,ch,length)) == NULL){
			fprintf(stderr,"Read Error\n"); 
			return 1; /* Quit on bad read */
			}
	}
	// puts("eof"); useless logging
	buf=addread(buf,'\0',length);
	printf("Result:%s,%d\n",buf,strlen(buf));
	free(buf);

	return 0;
}