[unix-history] / usr / src / libc / stdio / getpw.c

#include	<stdio.h>

getpw(uid, buf)
int uid;
char buf[];
{
	static FILE *pwf;
	register n, c;
	register char *bp;

	if(pwf == 0)
		pwf = fopen("/etc/passwd", "r");
	if(pwf == NULL)
		return(1);
	rewind(pwf);

	for (;;) {
		bp = buf;
		while((c=getc(pwf)) != '\n') {
			if(c == EOF)
				return(1);
			*bp++ = c;
		}
		*bp++ = '\0';
		bp = buf;
		n = 3;
		while(--n)
		while((c = *bp++) != ':')
			if(c == '\n')
				return(1);
		while((c = *bp++) != ':') {
			if(c<'0' || c>'9')
				continue;
			n = n*10+c-'0';
		}
		if(n == uid)
			return(0);
	}
}
Commit	Line	Data
1f92ea9c TL	1	#include <stdio.h>
	2
	3	getpw(uid, buf)
	4	int uid;
	5	char buf[];
	6	{
	7	static FILE *pwf;
	8	register n, c;
	9	register char *bp;
	10
	11	if(pwf == 0)
	12	pwf = fopen("/etc/passwd", "r");
	13	if(pwf == NULL)
	14	return(1);
	15	rewind(pwf);
	16
	17	for (;;) {
	18	bp = buf;
	19	while((c=getc(pwf)) != '\n') {
	20	if(c == EOF)
	21	return(1);
	22	*bp++ = c;
	23	}
	24	*bp++ = '\0';
	25	bp = buf;
	26	n = 3;
	27	while(--n)
	28	while((c = *bp++) != ':')
	29	if(c == '\n')
	30	return(1);
	31	while((c = *bp++) != ':') {
	32	if(c<'0' \|\| c>'9')
	33	continue;
	34	n = n*10+c-'0';
	35	}
	36	if(n == uid)
	37	return(0);
	38	}
	39	}