#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/fcntl.h>

extern errno;

char *loadfile(path)
char *path;
{
    /* Opens file path, reads contents into malloc'd buffer,
     * appends null character to buffer, returns ptr to buffer.

     * Returns NULL if can't open/read file or can't malloc space.
     * The cases can be distinguished by errno=0 for latter case.

     * Comment: the file is assumed to be a "normal file"; i.e.
     * a single read will return all data in the file.
     */

    struct stat statbuf;
    char *data;
    char *malloc();
    int fd;

    if (stat(path, &statbuf) == -1)
	return NULL;

    data = malloc(statbuf.st_size+1);
    if (data == NULL) {
	errno = 0;
	return NULL;
    }
    data[statbuf.st_size] = '\0';

    fd = open(path, O_RDONLY);
    if (fd == -1) {
	(void) free(data);
	return NULL;
    }

    if (read(fd, data, statbuf.st_size) != statbuf.st_size) {
	(void) free(data);
	return NULL;
    }

    return data;
}