120 	Linebuf *lb;  in Linebuf_alloc()  local
122 	if (!(lb = malloc(sizeof(*lb)))) {  in Linebuf_alloc()
129 		lb->filename = filename;  in Linebuf_alloc()
130 		if (!(lb->stream = fopen(filename, "r"))) {  in Linebuf_alloc()
131 			xfree(lb);  in Linebuf_alloc()
137 		lb->filename = "(stdin)";  in Linebuf_alloc()
138 		lb->stream = stdin;  in Linebuf_alloc()
141 	if (!(lb->buf = malloc(lb->size = LINEBUF_SIZE))) {  in Linebuf_alloc()
143 			(*errfun) ("linebuf (%s): malloc failed\n", lb->filename);  in Linebuf_alloc()
144 		xfree(lb);  in Linebuf_alloc()
147 	lb->errfun = errfun;  in Linebuf_alloc()
148 	lb->lineno = 0;  in Linebuf_alloc()
149 	return (lb);  in Linebuf_alloc()
153 Linebuf_free(Linebuf * lb)  in Linebuf_free()  argument
155 	fclose(lb->stream);  in Linebuf_free()
156 	xfree(lb->buf);  in Linebuf_free()
157 	xfree(lb);  in Linebuf_free()
162 Linebuf_restart(Linebuf * lb)
164 	clearerr(lb->stream);
165 	rewind(lb->stream);
166 	lb->lineno = 0;
170 Linebuf_lineno(Linebuf * lb)
172 	return (lb->lineno);
177 Linebuf_getline(Linebuf * lb)  in Linebuf_getline()  argument
182 	lb->lineno++;  in Linebuf_getline()
185 		if (!fgets(&lb->buf[n], lb->size - n, lb->stream)) {  in Linebuf_getline()
186 			if (ferror(lb->stream) && lb->errfun)  in Linebuf_getline()
187 				(*lb->errfun)("%s: %s\n", lb->filename,  in Linebuf_getline()
191 		n = strlen(lb->buf);  in Linebuf_getline()
194 		if (n > 0 && lb->buf[n - 1] == '\n') {  in Linebuf_getline()
195 			lb->buf[n - 1] = '\0';  in Linebuf_getline()
196 			return (lb->buf);  in Linebuf_getline()
198 		if (n != lb->size - 1) {  in Linebuf_getline()
199 			if (lb->errfun)  in Linebuf_getline()
200 				(*lb->errfun)("%s: skipping incomplete last line\n",  in Linebuf_getline()
201 				    lb->filename);  in Linebuf_getline()
205 		lb->size *= 2;  in Linebuf_getline()
206 		if ((p = realloc(lb->buf, lb->size)) == NULL) {  in Linebuf_getline()
207 			lb->size /= 2;  in Linebuf_getline()
208 			if (lb->errfun)  in Linebuf_getline()
209 				(*lb->errfun)("linebuf (%s): realloc failed\n",  in Linebuf_getline()
210 				    lb->filename);  in Linebuf_getline()
213 		lb->buf = p;  in Linebuf_getline()
811 		Linebuf *lb;  in main()  local
816 			lb = Linebuf_alloc(argv[j], error);  in main()
817 			if (!lb)  in main()
819 			while ((line = Linebuf_getline(lb)) != NULL)  in main()
821 			Linebuf_free(lb);  in main()