1*17880Sralph /* @(#)ttyslot.c 4.4 (Berkeley) 01/30/85 */ 216277Ssam 31995Swnj /* 41995Swnj * Return the number of the slot in the utmp file 51995Swnj * corresponding to the current user: try for file 0, 1, 2. 61995Swnj * Definition is the line number in the /etc/ttys file. 71995Swnj */ 816422Sralph #include <ttyent.h> 91995Swnj 101995Swnj char *ttyname(); 111995Swnj char *rindex(); 121995Swnj 131995Swnj #define NULL 0 141995Swnj 151995Swnj ttyslot() 161995Swnj { 1716422Sralph register struct ttyent *ty; 181995Swnj register char *tp, *p; 19*17880Sralph register s; 201995Swnj 2116277Ssam if ((tp = ttyname(0)) == NULL && 2216277Ssam (tp = ttyname(1)) == NULL && 2316277Ssam (tp = ttyname(2)) == NULL) 241995Swnj return(0); 251995Swnj if ((p = rindex(tp, '/')) == NULL) 261995Swnj p = tp; 271995Swnj else 281995Swnj p++; 2916422Sralph setttyent(); 301995Swnj s = 0; 3116422Sralph while ((ty = getttyent()) != NULL) { 321995Swnj s++; 3316422Sralph if (strcmp(ty->ty_name, p) == 0) { 3416422Sralph endttyent(); 3516277Ssam return (s); 361995Swnj } 371995Swnj } 3816422Sralph endttyent(); 3916277Ssam return (0); 401995Swnj } 41