103 freopen(const char *filename, const char *mode, FILE *stream)  in freopen()  argument
105 	fclose(stream);  in freopen()
110 fread(void *ptr, size_t size, size_t count, FILE *stream)  in fread()  argument
114 	if (stream == NULL)  in fread()
116 	r = (size_t)read(stream->fd, ptr, size * count);  in fread()
117 	stream->offset += r;  in fread()
123 fwrite(const void *ptr, size_t size, size_t count, FILE *stream)  in fwrite()  argument
127 	if (stream == NULL || ptr == NULL)  in fwrite()
129 	w = write(stream->fd, ptr, size * count);  in fwrite()
133 	stream->offset += w;  in fwrite()
138 fclose(FILE *stream)  in fclose()  argument
140 	if (stream == NULL)  in fclose()
142 	close(stream->fd);  in fclose()
143 	free(stream);  in fclose()
149 ferror(FILE *stream)  in ferror()  argument
152 	return (stream == NULL || stream->fd < 0);  in ferror()
156 feof(FILE *stream)  in feof()  argument
159 	if (stream == NULL)  in feof()
162 	return (stream->offset >= stream->size);  in feof()
166 getc(FILE *stream)  in getc()  argument
171 	if (stream == NULL)  in getc()
173 	r = read(stream->fd, &ch, 1);  in getc()