C Stdlib IO Functions and System Call Equivalents

I’m reading The C Programming Language and trying to remember C’s standard library functions for IO and their system call equivalents. I couldn’t find a side-by-side chart online, so I created this to help me.

	C stdlib	return value	header	system call	return value	header
files	file pointer FILE *fp		stdio.h	file descriptor int td
streams	stdin, stdout, stderr		stdio.h	0, 1, 2
open	FILE fopen(char name, char *mode)	file pointer on success, NULL on failure	stdio.h	int open(char *name, int flags, int perms)	file descriptor on success, -1 on error	fctnl.h
create	(fopen creates file if it doesn’t exist)			int creat(char *name, int perms)		fctnl.h
read	int getc(FILE *fp); getchar = getc(stdin)	next char, EOF on end of file or error	stdio.h	int read(int fd, char *buf, int n)	number bytes read, 0 on EOF, -1 on error	stdio.h
read	char fgets(char line, int maxline); gets = fgets(stdin)	*line on success, NULL on EOF or error	stdio.h
write	int putc(int c, FILE *fp)	char written on success, EOF on error	stdio.h	int write(int fd, char *buf, int n)	number bytes written, 0 on EOF, -1 on error	stdio.h
write	int fputs(char line, FILE fp); puts = fputs(stout)	non-negative int on success, EOF on error	stdio.h
close	int fclose(FILE *fp)	0 on success	stdio.h	int close(int fd)	0 on success	unistd.h
perms	r, w, a
				flags	O_RDONLY, O_WRONLY, O_RDWR	fctnl.h
					BUFSIZ	stdio.h