1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
46 #include "un-namespace.h"
71  * virtual database. 0 is returned on success, -1 on failure.
86                 return (-1);  in cgetset()
114 		 * Skip past the current capability field - it's either the  in cgetcap()
152  * -1 if the requested record couldn't be found, -2 if a system error was
153  * encountered (couldn't open/read a file, etc.), and -3 if a potential
161 	return (getent(buf, &dummy, db_array, -1, name, 0, NULL));  in cgetent()
165  * Getent implements the functions of cgetent.  If fd is non-negative,
198 		return (-3);  in getent()
206 			return (-2);  in getent()
220 		return (-2);  in getent()
246 					(void)capdbp->close(capdbp);  in getent()
251 				if (capdbp->close(capdbp) < 0) {  in getent()
253 					return (-2);  in getent()
257 					return (-2);  in getent()
304 							return (-2);  in getent()
306 							fd = -1;  in getent()
317 					if (rp > record && *(rp-1) == '\\') {  in getent()
318 						rp--;  in getent()
334 					pos = rp - record;  in getent()
335 					newsize = r_end - record + BFRAG;  in getent()
341 						return (-2);  in getent()
379 		return (-1);  in getent()
417 						*(s - 1) = '\0';  in getent()
420 			tcstart = tc - 3;  in getent()
421 			tclen = s - tcstart;  in getent()
430 				if (iret < -1) {  in getent()
439 				if (iret == -1) {  in getent()
440 					*(s - 1) = ':';  in getent()
441 					scan = s - 1;  in getent()
455 			newilen -= s - newicap;  in getent()
458 			/* make sure interpolated record is `:'-terminated */  in getent()
460 			if (*(s-1) != ':') {  in getent()
469 			diff = newilen - tclen;  in getent()
470 			if (diff >= r_end - rp) {  in getent()
474 				pos = rp - record;  in getent()
475 				newsize = r_end - record + diff + BFRAG;  in getent()
476 				tcpos = tcstart - record;  in getent()
477 				tcposend = tcend - record;  in getent()
484 					return (-2);  in getent()
496 			bcopy(tcend, s, rp - tcend);  in getent()
505 			scan = s-1;  in getent()
515 	*len = rp - record - 1;	/* don't count NUL */  in getent()
518 		     reallocf(record, (size_t)(rp - record))) == NULL) {  in getent()
520 			return (-2);  in getent()
537 		return (-2);  in cdbget()
543 		switch(capdbp->get(capdbp, &key, &data, 0)) {  in cdbget()
544 		case -1:  in cdbget()
546 			return (-2);  in cdbget()
549 			return (-1);  in cdbget()
557 		key.size = data.size - 1;  in cdbget()
567  * record buf, -1 if not.
575 		return -1;  in cgetmatch()
599 		bp--;	/* a '|' or ':' may have stopped the match */  in cgetmatch()
602 				return (-1);	/* match failed totally */  in cgetmatch()
640  * upon returning an entry with more remaining, and -1 if an error occurs.
655 		return (-1);  in cgetnext()
672 					return (-1);  in cgetnext()
680 						return (-1);  in cgetnext()
685 				line[len - 1] = '\0';  in cgetnext()
692 				if (line[len - 2] == '\\')  in cgetnext()
698 			if (line[len - 2] == '\\')  in cgetnext()
736 						return (-1);  in cgetnext()
739 						return (-1);  in cgetnext()
742 					line[len - 1] = '\0';  in cgetnext()
761 		status = getent(bp, &dummy, db_array, -1, buf, 0, NULL);  in cgetnext()
762 		if (status == -2 || status == -3)  in cgetnext()
775  * NUL is returned on success, -1 if the requested string capability
776  * couldn't be found, -2 if a system error was encountered (storage
785 	char *mem;  in cgetstr()  local
792 		return (-1);  in cgetstr()
798 	if ((mem = malloc(SFRAG)) == NULL) {  in cgetstr()
800 		return (-2);	/* couldn't even allocate the first fragment */  in cgetstr()
803 	mp = mem;  in cgetstr()
808 		 *	There is always room for one more character in mem.  in cgetstr()
809 		 *	Mp always points just past last character in mem.  in cgetstr()
831 					n = n * 8 + (*bp++ - '0');  in cgetstr()
832 				} while (--i && '0' <= *bp && *bp <= '7');  in cgetstr()
862 					*mp++ = *(bp-1);  in cgetstr()
867 		m_room--;  in cgetstr()
874 			size_t size = mp - mem;  in cgetstr()
876 			if ((mem = reallocf(mem, size + SFRAG)) == NULL)  in cgetstr()
877 				return (-2);  in cgetstr()
879 			mp = mem + size;  in cgetstr()
883 	m_room--;  in cgetstr()
884 	len = mp - mem - 1;  in cgetstr()
890 		if ((mem = reallocf(mem, (size_t)(mp - mem))) == NULL)  in cgetstr()
891 			return (-2);  in cgetstr()
892 	*str = mem;  in cgetstr()
903  * -1 if the requested string capability couldn't be found, -2 if a system
912 	char *mem;  in cgetustr()  local
918 		return (-1);  in cgetustr()
924 	if ((mem = malloc(SFRAG)) == NULL) {  in cgetustr()
926 		return (-2);	/* couldn't even allocate the first fragment */  in cgetustr()
929 	mp = mem;  in cgetustr()
934 		 *	There is always room for one more character in mem.  in cgetustr()
935 		 *	Mp always points just past last character in mem.  in cgetustr()
939 		m_room--;  in cgetustr()
946 			size_t size = mp - mem;  in cgetustr()
948 			if ((mem = reallocf(mem, size + SFRAG)) == NULL)  in cgetustr()
949 				return (-2);  in cgetustr()
951 			mp = mem + size;  in cgetustr()
955 	m_room--;  in cgetustr()
956 	len = mp - mem - 1;  in cgetustr()
962 		if ((mem = reallocf(mem, (size_t)(mp - mem))) == NULL)  in cgetustr()
963 			return (-2);  in cgetustr()
964 	*str = mem;  in cgetustr()
971  * the long pointed to by num.  0 is returned on success, -1 if the requested
978 	int base, digit;  in cgetnum()  local
986 		return (-1);  in cgetnum()
989 	 * Look at value and determine numeric base:  in cgetnum()
998 			base = 16;  in cgetnum()
1000 			base = 8;  in cgetnum()
1002 		base = 10;  in cgetnum()
1010 			digit = *bp - '0';  in cgetnum()
1012 			digit = 10 + *bp - 'a';  in cgetnum()
1014 			digit = 10 + *bp - 'A';  in cgetnum()
1018 		if (digit >= base)  in cgetnum()
1021 		n = n * base + digit;  in cgetnum()