52 	ssize_t bsize =  in shf_open()  local
58 	shf = alloc(sizeof(struct shf) + bsize, ATEMP);  in shf_open()
61 	shf->bsize = bsize;  in shf_open()
129 	ssize_t bsize =  in shf_fdopen()  local
135 		if (bsize) {  in shf_fdopen()
136 			shf->buf = alloc(bsize, ATEMP);  in shf_fdopen()
141 		shf = alloc(sizeof(struct shf) + bsize, ATEMP);  in shf_fdopen()
149 	shf->rbsize = bsize;  in shf_fdopen()
151 	shf->wbsize = sflags & SHF_UNBUF ? 0 : bsize;  in shf_fdopen()
154 	shf->bsize = bsize;  in shf_fdopen()
164 	ssize_t bsize =  in shf_reopen()  local
169 	if (!shf || !shf->buf || shf->bsize < bsize)  in shf_reopen()
176 	shf->rbsize = bsize;  in shf_reopen()
178 	shf->wbsize = sflags & SHF_UNBUF ? 0 : bsize;  in shf_reopen()
196 shf_sopen(char *buf, ssize_t bsize, int sflags, struct shf *shf)  in shf_sopen()  argument
209 		if (bsize <= 0)  in shf_sopen()
210 			bsize = 64;  in shf_sopen()
212 		buf = alloc(bsize, shf->areap);  in shf_sopen()
216 	shf->rnleft = bsize;  in shf_sopen()
217 	shf->rbsize = bsize;  in shf_sopen()
218 	shf->wnleft = bsize - 1;	/* space for a '\0' */  in shf_sopen()
219 	shf->wbsize = bsize;  in shf_sopen()
222 	shf->bsize = bsize;  in shf_sopen()
453 shf_read(char *buf, ssize_t bsize, struct shf *shf)  in shf_read()  argument
455 	ssize_t ncopy, orig_bsize = bsize;  in shf_read()
461 	if (bsize <= 0)  in shf_read()
462 		internal_errorf(Tf_szs, Tshf_read, bsize, Tbsize);  in shf_read()
464 	while (bsize > 0) {  in shf_read()
469 		if (ncopy > bsize)  in shf_read()
470 			ncopy = bsize;  in shf_read()
473 		bsize -= ncopy;  in shf_read()
478 	return (orig_bsize == bsize ? (shf_error(shf) ? -1 : 0) :  in shf_read()
479 	    orig_bsize - bsize);  in shf_read()
489 shf_getse(char *buf, ssize_t bsize, struct shf *shf)  in shf_getse()  argument
499 	if (bsize <= 0)  in shf_getse()
503 	--bsize;  in shf_getse()
516 		if (ncopy > bsize)  in shf_getse()
517 			ncopy = bsize;  in shf_getse()
522 		bsize -= ncopy;  in shf_getse()
526 			bsize++;  in shf_getse()
530 	} while (!end && bsize);  in shf_getse()
532 	if (!bsize && buf[-1] == '\r') {  in shf_getse()
740 shf_snprintf(char *buf, ssize_t bsize, const char *fmt, ...)  in shf_snprintf()  argument
746 	if (!buf || bsize <= 0)  in shf_snprintf()
748 		    (size_t)buf, bsize);  in shf_snprintf()
750 	shf_sopen(buf, bsize, SHF_WR, &shf);  in shf_snprintf()