1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
86 		.buflen = (cur != -1) ? READ_BUFLEN : 1,  in fdctx_init()
87 		.ep = &fdc->buf[0],	/* No data */  in fdctx_init()
96 	if (&fdc->buf[fdc->off] == fdc->ep) {  in fdgetc()
97 		nread = read(fdc->fd, fdc->buf, fdc->buflen);  in fdgetc()
99 			fdc->off = 0;  in fdgetc()
100 			fdc->ep = fdc->buf + nread;  in fdgetc()
104 	*c = fdc->buf[fdc->off++];  in fdgetc()
114 	if (fdc->buflen > 1) {  in fdctx_destroy()
120 	 * |*****************|-------|  in fdctx_destroy()
122 	 *     |<- residue ->|  in fdctx_destroy()
128 		residue = (fdc->ep - fdc->buf) - fdc->off;  in fdctx_destroy()
130 			(void) lseek(fdc->fd, -residue, SEEK_CUR);  in fdctx_destroy()
135  * The read builtin.  The -r option causes backslashes to be treated like
165 	struct timeval tv;  in readcmd()  local
174 	tv.tv_sec = -1;  in readcmd()
175 	tv.tv_usec = 0;  in readcmd()
187 			tv.tv_sec = strtol(shoptarg, &tvptr, 0);  in readcmd()
195 				tv.tv_sec *= 60;  in readcmd()
198 				tv.tv_sec *= 60;  in readcmd()
215 	if (tv.tv_sec >= 0) {  in readcmd()
221 		status = select(1, &ifds, NULL, NULL, &tv);  in readcmd()
237 	lastnonifs = lastnonifsws = -1;  in readcmd()
242 		if (nread == -1) {  in readcmd()
264 				lastnonifs = lastnonifsws = p - stackblock();  in readcmd()
288 				/* Only one non-whitespace IFS per word */  in readcmd()
291 					lastnonifsws = p - stackblock();  in readcmd()
304 			lastnonifs = lastnonifsws = p - stackblock();  in readcmd()
316 				lastnonifsws = p - stackblock();  in readcmd()
325 		lastnonifs = lastnonifsws = -1;  in readcmd()
332 	 * non-whitespace unless it was naked  in readcmd()
339 	/* Set any remaining args to "" */  in readcmd()
405 				mask = (mask << 3) + (*ap - '0');  in umaskcmd()
409 			void *set;  in umaskcmd()  local
411 			if ((set = setmode (ap)) == NULL)  in umaskcmd()
414 			mask = getmode (set, ~mask & 0777);  in umaskcmd()
416 			free(set);  in umaskcmd()
446 	{ "file size",		"512-blocks",	RLIMIT_FSIZE,	 512, 'f' },
455 	{ "core file size",	"512-blocks",	RLIMIT_CORE,	 512, 'c' },
479 	{ "pseudo-terminals",	(char *)0,	RLIMIT_NPTS,	   1, 'p' },
502 		val = limit->rlim_cur;  in printlimit()
504 		val = limit->rlim_max;  in printlimit()
509 		val /= l->factor;  in printlimit()
520 	int		set, all = 0;  in ulimitcmd()  local
540 	for (l = limits; l->name && l->option != what; l++)  in ulimitcmd()
542 	if (!l->name)  in ulimitcmd()
545 	set = *argptr ? 1 : 0;  in ulimitcmd()
546 	if (set) {  in ulimitcmd()
563 			if (uval > UINTMAX_MAX / l->factor)  in ulimitcmd()
565 			uval *= l->factor;  in ulimitcmd()
573 		for (l = limits; l->name; l++) {  in ulimitcmd()
575 			if (getrlimit(l->cmd, &limit) < 0)  in ulimitcmd()
578 			if (l->units)  in ulimitcmd()
580 					"(%s, -%c) ", l->units, l->option);  in ulimitcmd()
583 					"(-%c) ", l->option);  in ulimitcmd()
584 			out1fmt("%-18s %18s ", l->name, optbuf);  in ulimitcmd()
590 	if (getrlimit(l->cmd, &limit) < 0)  in ulimitcmd()
592 	if (set) {  in ulimitcmd()
597 		if (setrlimit(l->cmd, &limit) < 0)  in ulimitcmd()