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

#define MAX_LINES 100
#define MAX_LEN   1024

int main(int argc, char * argv) {
	char * lines[MAX_LINES];
	int lines_collected = 0;
	while (!feof(stdin)) {
		lines[lines_collected] = malloc(MAX_LEN);
		fgets(lines[lines_collected], MAX_LEN, stdin);
		if (!strcmp(lines[lines_collected], "\n")) {
			free(lines[lines_collected]);
			break;
		}
		lines_collected++;
		if (lines_collected == MAX_LINES) {
			printf("Can't have any more lines! If this happens, perhaps a dynamic list would be a good idea.\n");
			break;
		}
	}
	printf("Collected %d lines from input.\n", lines_collected);
	int total_size = 0;
	for (int i = 0; i < lines_collected; ++i) {
		total_size += strlen(lines[i]);
	}
	printf("The total size of collected text was %d characters.\n", total_size);
	
	char * buffer = malloc(total_size + 1 /* for the null */);
	buffer[0] = '\0';
	for (int i = 0; i < lines_collected; ++i) {
		strcat(buffer, lines[i]);
		free(lines[i]);
	}
	printf("Final buffer looks like:\n%s\n", buffer);
	free(buffer);
	return 0;
}