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    Length: 712 (0x2c8)
    Types: TextFile
    Names: »pwlock.c«

└─⟦a0efdde77⟧ Bits:30001252 EUUGD11 Tape, 1987 Spring Conference Helsinki
    └─⟦this⟧ »EUUGD11/euug-87hel/sec8/mcp/src/pwlock.c« 

TextFile

#include <sys/types.h>
#include <sys/file.h>
#include "sysdep.h"

extern	time_t PWLockTime;
static	int pwlocked;

lockpw()

{
	int fd, i;
	time_t time();

	for (i=1; i<5; i++) {
		if ((fd=open(PWDLOCK, O_WRONLY|O_CREAT|O_EXCL, 0644)) >= 0) {
			(void) time(&PWLockTime);
			(void) close(fd);
			pwlocked++;
			return(1);
		}
		else switch (i) {
			case 2: msg("Waiting for passwd lock...");	break;
			case 3: msg("Still waiting...");		break;
			case 4: msg("Pacing angrily...");		break;
			default: break;
		}
		sleep(2 * (unsigned)i);
	}
	return(0);
}

unlockpw()

{
	if (!pwlocked) return;
	if (unlink(PWDLOCK) == -1) {
		perr("Warning: unable to unlock password file");
		return;
	}
	pwlocked = 0;
	return;
}