+++ /dev/null
-/*
- * Copyright (c) 2007-2010 Todd C. Miller <Todd.Miller@courtesan.com>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <config.h>
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/ioctl.h>
-#include <stdio.h>
-#ifdef STDC_HEADERS
-# include <stdlib.h>
-# include <stddef.h>
-#else
-# ifdef HAVE_STDLIB_H
-# include <stdlib.h>
-# endif
-#endif /* STDC_HEADERS */
-#ifdef HAVE_STRING_H
-# include <string.h>
-#endif /* HAVE_STRING_H */
-#ifdef HAVE_STRINGS_H
-# include <strings.h>
-#endif /* HAVE_STRINGS_H */
-#ifdef HAVE_UNISTD_H
-# include <unistd.h>
-#endif /* HAVE_UNISTD_H */
-#include <ctype.h>
-#ifdef HAVE_TERMIOS_H
-# include <termios.h>
-#else
-# ifdef HAVE_TERMIO_H
-# include <termio.h>
-# endif
-#endif
-
-#include "sudo.h"
-#include "lbuf.h"
-
-#if !defined(TIOCGSIZE) && defined(TIOCGWINSZ)
-# define TIOCGSIZE TIOCGWINSZ
-# define ttysize winsize
-# define ts_cols ws_col
-#endif
-
-int
-get_ttycols()
-{
- char *p;
- int cols;
-#ifdef TIOCGSIZE
- struct ttysize win;
-
- if (ioctl(STDERR_FILENO, TIOCGSIZE, &win) == 0 && win.ts_cols != 0)
- return((int)win.ts_cols);
-#endif
-
- /* Fall back on $COLUMNS. */
- if ((p = getenv("COLUMNS")) == NULL || (cols = atoi(p)) <= 0)
- cols = 80;
- return(cols);
-}
-
-void
-lbuf_init(lbuf, output, indent, continuation)
- struct lbuf *lbuf;
- int (*output)__P((const char *));
- int indent;
- const char *continuation;
-{
- lbuf->output = output;
- lbuf->continuation = continuation;
- lbuf->indent = indent;
- lbuf->cols = get_ttycols();
- lbuf->len = 0;
- lbuf->size = 0;
- lbuf->buf = NULL;
-}
-
-void
-lbuf_destroy(lbuf)
- struct lbuf *lbuf;
-{
- efree(lbuf->buf);
- lbuf->buf = NULL;
-}
-
-/*
- * Append strings to the buffer, expanding it as needed.
- */
-void
-#ifdef __STDC__
-lbuf_append_quoted(struct lbuf *lbuf, const char *set, ...)
-#else
-lbuf_append_quoted(lbuf, set, va_alist)
- struct lbuf *lbuf;
- const char *set;
- va_dcl
-#endif
-{
- va_list ap;
- int len = 0;
- char *cp, *s;
-
-#ifdef __STDC__
- va_start(ap, set);
-#else
- va_start(ap);
-#endif
- while ((s = va_arg(ap, char *)) != NULL) {
- len += strlen(s);
- for (cp = s; (cp = strpbrk(cp, set)) != NULL; cp++)
- len++;
- }
- va_end(ap);
-
- /* Expand buffer as needed. */
- if (lbuf->len + len >= lbuf->size) {
- do {
- lbuf->size += 256;
- } while (lbuf->len + len >= lbuf->size);
- lbuf->buf = erealloc(lbuf->buf, lbuf->size);
- }
-
-#ifdef __STDC__
- va_start(ap, set);
-#else
- va_start(ap);
-#endif
- /* Append each string. */
- while ((s = va_arg(ap, char *)) != NULL) {
- while ((cp = strpbrk(s, set)) != NULL) {
- len = (int)(cp - s);
- memcpy(lbuf->buf + lbuf->len, s, len);
- lbuf->len += len;
- lbuf->buf[lbuf->len++] = '\\';
- lbuf->buf[lbuf->len++] = *cp;
- s = cp + 1;
- }
- if (*s != '\0') {
- len = strlen(s);
- memcpy(lbuf->buf + lbuf->len, s, len);
- lbuf->len += len;
- }
- }
- lbuf->buf[lbuf->len] = '\0';
- va_end(ap);
-}
-
-/*
- * Append strings to the buffer, expanding it as needed.
- */
-void
-#ifdef __STDC__
-lbuf_append(struct lbuf *lbuf, ...)
-#else
-lbuf_append(lbuf, va_alist)
- struct lbuf *lbuf;
- va_dcl
-#endif
-{
- va_list ap;
- int len = 0;
- char *s;
-
-#ifdef __STDC__
- va_start(ap, lbuf);
-#else
- va_start(ap);
-#endif
- while ((s = va_arg(ap, char *)) != NULL)
- len += strlen(s);
- va_end(ap);
-
- /* Expand buffer as needed. */
- if (lbuf->len + len >= lbuf->size) {
- do {
- lbuf->size += 256;
- } while (lbuf->len + len >= lbuf->size);
- lbuf->buf = erealloc(lbuf->buf, lbuf->size);
- }
-
-#ifdef __STDC__
- va_start(ap, lbuf);
-#else
- va_start(ap);
-#endif
- /* Append each string. */
- while ((s = va_arg(ap, char *)) != NULL) {
- len = strlen(s);
- memcpy(lbuf->buf + lbuf->len, s, len);
- lbuf->len += len;
- }
- lbuf->buf[lbuf->len] = '\0';
- va_end(ap);
-}
-
-static void
-lbuf_println(lbuf, line, len)
- struct lbuf *lbuf;
- char *line;
- int len;
-{
- char *cp, save;
- int i, have, contlen;
-
- contlen = lbuf->continuation ? strlen(lbuf->continuation) : 0;
-
- /*
- * Print the buffer, splitting the line as needed on a word
- * boundary.
- */
- cp = line;
- have = lbuf->cols;
- while (cp != NULL && *cp != '\0') {
- char *ep = NULL;
- int need = len - (int)(cp - line);
-
- if (need > have) {
- have -= contlen; /* subtract for continuation char */
- if ((ep = memrchr(cp, ' ', have)) == NULL)
- ep = memchr(cp + have, ' ', need - have);
- if (ep != NULL)
- need = (int)(ep - cp);
- }
- if (cp != line) {
- /* indent continued lines */
- /* XXX - build up string instead? */
- for (i = 0; i < lbuf->indent; i++)
- lbuf->output(" ");
- }
- /* NUL-terminate cp for the output function and restore afterwards */
- save = cp[need];
- cp[need] = '\0';
- lbuf->output(cp);
- cp[need] = save;
- cp = ep;
-
- /*
- * If there is more to print, reset have, incremement cp past
- * the whitespace, and print a line continuaton char if needed.
- */
- if (cp != NULL) {
- have = lbuf->cols - lbuf->indent;
- ep = line + len;
- while (cp < ep && isblank((unsigned char)*cp)) {
- cp++;
- }
- if (contlen)
- lbuf->output(lbuf->continuation);
- }
- lbuf->output("\n");
- }
-}
-
-/*
- * Print the buffer with word wrap based on the tty width.
- * The lbuf is reset on return.
- */
-void
-lbuf_print(lbuf)
- struct lbuf *lbuf;
-{
- char *cp, *ep;
- int len, contlen;
-
- contlen = lbuf->continuation ? strlen(lbuf->continuation) : 0;
-
- /* For very small widths just give up... */
- if (lbuf->cols <= lbuf->indent + contlen + 20) {
- lbuf->output(lbuf->buf);
- lbuf->output("\n");
- goto done;
- }
-
- /* Print each line in the buffer */
- for (cp = lbuf->buf; cp != NULL && *cp != '\0'; ) {
- if (*cp == '\n') {
- lbuf->output("\n");
- cp++;
- } else {
- ep = memchr(cp, '\n', lbuf->len - (cp - lbuf->buf));
- len = ep ? (int)(ep - cp) : lbuf->len;
- lbuf_println(lbuf, cp, len);
- cp = ep ? ep + 1 : NULL;
- }
- }
-
-done:
- lbuf->len = 0; /* reset the buffer for re-use. */
-}
projects / debian / sudo / blobdiff