100 freopen(const char *filename, const char *mode, FILE *stream)  in freopen()  argument
102 	fclose(stream);  in freopen()
107 fread(void *ptr, size_t size, size_t count, FILE *stream)  in fread()  argument
111 	if (stream == NULL)  in fread()
113 	r = (size_t)read(stream->fd, ptr, size * count);  in fread()
114 	stream->offset += r;  in fread()
120 fwrite(const void *ptr, size_t size, size_t count, FILE *stream)  in fwrite()  argument
124 	if (stream == NULL || ptr == NULL)  in fwrite()
126 	w = write(stream->fd, ptr, size * count);  in fwrite()
130 	stream->offset += w;  in fwrite()
135 fclose(FILE *stream)  in fclose()  argument
137 	if (stream == NULL)  in fclose()
139 	close(stream->fd);  in fclose()
140 	free(stream);  in fclose()
146 ferror(FILE *stream)  in ferror()  argument
149 	return (stream == NULL || stream->fd < 0);  in ferror()
153 feof(FILE *stream)  in feof()  argument
156 	if (stream == NULL)  in feof()
159 	return (stream->offset >= stream->size);  in feof()
163 getc(FILE *stream)  in getc()  argument
168 	if (stream == NULL)  in getc()
170 	r = read(stream->fd, &ch, 1);  in getc()