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xterm : Fix CVE-2022-45063 code execution via OSC 50 input sequences] CVE-2022-45063

Browse Source 
Upstream-Status: Backport [7876366749]
CVE: CVE-2022-45063

Signed-off-by: Siddharth Doshi <sdoshi@mvista.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
This commit is contained in:
Siddharth Doshi 2023-01-03 11:14:27 +05:30 committed by Armin Kuster
parent 6464eb9fc4
commit 10148c538e
2 changed files with 786 additions and 0 deletions
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meta-oe/recipes-graphics/xorg-app/xterm/CVE-2022-45063.patch Normal file
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@ -0,0 +1,785 @@
From 787636674918873a091e7a4ef5977263ba982322 Mon Sep 17 00:00:00 2001
From: "Thomas E. Dickey" <dickey@invisible-island.net>
Date: Sun, 23 Oct 2022 22:59:52 +0000
Subject: [PATCH] snapshot of project "xterm", label xterm-374c
Upstream-Status: Backport [https://github.com/ThomasDickey/xterm-snapshots/commit/787636674918873a091e7a4ef5977263ba982322]
CVE: CVE-2022-45063
Signed-off-by: Siddharth Doshi <sdoshi@mvista.com>
---
button.c | 16 +--
charproc.c | 9 +-
doublechr.c | 4 +-
fontutils.c | 266 ++++++++++++++++++++++++++-----------------------
fontutils.h | 4 +-
misc.c | 7 +-
screen.c | 2 +-
xterm.h | 2 +-
xterm.log.html | 6 ++
9 files changed, 164 insertions(+), 152 deletions(-)
diff --git a/button.c b/button.c
index 66a6181..e05ca50 100644
--- a/button.c
+++ b/button.c
@@ -1619,14 +1619,9 @@ static void
UnmapSelections(XtermWidget xw)
{
TScreen *screen = TScreenOf(xw);
- Cardinal n;
- if (screen->mappedSelect) {
- for (n = 0; screen->mappedSelect[n] != 0; ++n)
- free((void *) screen->mappedSelect[n]);
- free(screen->mappedSelect);
- screen->mappedSelect = 0;
- }
+ free(screen->mappedSelect);
+ screen->mappedSelect = 0;
}
/*
@@ -1662,14 +1657,11 @@ MapSelections(XtermWidget xw, String *params, Cardinal num_params)
if ((result = TypeMallocN(String, num_params + 1)) != 0) {
result[num_params] = 0;
for (j = 0; j < num_params; ++j) {
- result[j] = x_strdup((isSELECT(params[j])
+ result[j] = (String) (isSELECT(params[j])
? mapTo
- : params[j]));
+ : params[j]);
if (result[j] == 0) {
UnmapSelections(xw);
- while (j != 0) {
- free((void *) result[--j]);
- }
free(result);
result = 0;
break;
diff --git a/charproc.c b/charproc.c
index 55f0108..b07de4c 100644
--- a/charproc.c
+++ b/charproc.c
@@ -12548,7 +12548,6 @@ DoSetSelectedFont(Widget w,
Bell(xw, XkbBI_MinorError, 0);
} else {
Boolean failed = False;
- int oldFont = TScreenOf(xw)->menu_font_number;
char *save = TScreenOf(xw)->SelectFontName();
char *val;
char *test;
@@ -12593,10 +12592,6 @@ DoSetSelectedFont(Widget w,
failed = True;
}
if (failed) {
- (void) xtermLoadFont(xw,
- xtermFontName(TScreenOf(xw)->MenuFontName(oldFont)),
- True,
- oldFont);
Bell(xw, XkbBI_MinorError, 0);
}
free(used);
@@ -12605,7 +12600,7 @@ DoSetSelectedFont(Widget w,
}
}
-void
+Bool
FindFontSelection(XtermWidget xw, const char *atom_name, Bool justprobe)
{
TScreen *screen = TScreenOf(xw);
@@ -12645,7 +12640,7 @@ FindFontSelection(XtermWidget xw, const char *atom_name, Bool justprobe)
DoSetSelectedFont, NULL,
XtLastTimestampProcessed(XtDisplay(xw)));
}
- return;
+ return (screen->SelectFontName() != NULL) ? True : False;
}
Bool
diff --git a/doublechr.c b/doublechr.c
index a60f5bd..f7b6bae 100644
--- a/doublechr.c
+++ b/doublechr.c
@@ -294,7 +294,7 @@ xterm_DoubleGC(XTermDraw * params, GC old_gc, int *inxp)
temp.flags = (params->attr_flags & BOLD);
temp.warn = fwResource;
- if (!xtermOpenFont(params->xw, name, &temp, False)) {
+ if (!xtermOpenFont(params->xw, name, &temp, NULL, False)) {
XTermDraw local = *params;
char *nname;
@@ -303,7 +303,7 @@ xterm_DoubleGC(XTermDraw * params, GC old_gc, int *inxp)
nname = xtermSpecialFont(&local);
if (nname != 0) {
found = (Boolean) xtermOpenFont(params->xw, nname, &temp,
- False);
+ NULL, False);
free(nname);
}
} else {
diff --git a/fontutils.c b/fontutils.c
index 4b0ef85..d9bfaf8 100644
--- a/fontutils.c
+++ b/fontutils.c
@@ -92,9 +92,9 @@
}
#define FREE_FNAME(field) \
- if (fonts == 0 || myfonts.field != fonts->field) { \
- FREE_STRING(myfonts.field); \
- myfonts.field = 0; \
+ if (fonts == 0 || new_fnames.field != fonts->field) { \
+ FREE_STRING(new_fnames.field); \
+ new_fnames.field = 0; \
}
/*
@@ -573,7 +573,7 @@ open_italic_font(XtermWidget xw, int n, FontNameProperties *fp, XTermFonts * dat
if ((name = italic_font_name(fp, slant[pass])) != 0) {
TRACE(("open_italic_font %s %s\n",
whichFontEnum((VTFontEnum) n), name));
- if (xtermOpenFont(xw, name, data, False)) {
+ if (xtermOpenFont(xw, name, data, NULL, False)) {
result = (data->fs != 0);
#if OPT_REPORT_FONTS
if (resource.reportFonts) {
@@ -1006,13 +1006,14 @@ cannotFont(XtermWidget xw, const char *who, const char *tag, const char *name)
}
/*
- * Open the given font and verify that it is non-empty. Return a null on
+ * Open the given font and verify that it is non-empty. Return false on
* failure.
*/
Bool
xtermOpenFont(XtermWidget xw,
const char *name,
XTermFonts * result,
+ XTermFonts * current,
Bool force)
{
Bool code = False;
@@ -1020,7 +1021,12 @@ xtermOpenFont(XtermWidget xw,
TRACE(("xtermOpenFont %d:%d '%s'\n",
result->warn, xw->misc.fontWarnings, NonNull(name)));
+
if (!IsEmpty(name)) {
+ Bool existing = (current != NULL
+ && current->fs != NULL
+ && current->fn != NULL);
+
if ((result->fs = XLoadQueryFont(screen->display, name)) != 0) {
code = True;
if (EmptyFont(result->fs)) {
@@ -1039,9 +1045,13 @@ xtermOpenFont(XtermWidget xw,
} else {
TRACE(("xtermOpenFont: cannot load font '%s'\n", name));
}
- if (force) {
+ if (existing) {
+ TRACE(("...continue using font '%s'\n", current->fn));
+ result->fn = x_strdup(current->fn);
+ result->fs = current->fs;
+ } else if (force) {
NoFontWarning(result);
- code = xtermOpenFont(xw, DEFFONT, result, True);
+ code = xtermOpenFont(xw, DEFFONT, result, NULL, True);
}
}
}
@@ -1289,6 +1299,7 @@ static Bool
loadNormFP(XtermWidget xw,
char **nameOutP,
XTermFonts * infoOut,
+ XTermFonts * current,
int fontnum)
{
Bool status = True;
@@ -1298,7 +1309,7 @@ loadNormFP(XtermWidget xw,
if (!xtermOpenFont(xw,
*nameOutP,
infoOut,
- (fontnum == fontMenu_default))) {
+ current, (fontnum == fontMenu_default))) {
/*
* If we are opening the default font, and it happens to be missing,
* force that to the compiled-in default font, e.g., "fixed". If we
@@ -1333,10 +1344,10 @@ loadBoldFP(XtermWidget xw,
if (fp != 0) {
NoFontWarning(infoOut);
*nameOutP = bold_font_name(fp, fp->average_width);
- if (!xtermOpenFont(xw, *nameOutP, infoOut, False)) {
+ if (!xtermOpenFont(xw, *nameOutP, infoOut, NULL, False)) {
free(*nameOutP);
*nameOutP = bold_font_name(fp, -1);
- xtermOpenFont(xw, *nameOutP, infoOut, False);
+ xtermOpenFont(xw, *nameOutP, infoOut, NULL, False);
}
TRACE(("...derived bold '%s'\n", NonNull(*nameOutP)));
}
@@ -1354,7 +1365,7 @@ loadBoldFP(XtermWidget xw,
TRACE(("...did not get a matching bold font\n"));
}
free(normal);
- } else if (!xtermOpenFont(xw, *nameOutP, infoOut, False)) {
+ } else if (!xtermOpenFont(xw, *nameOutP, infoOut, NULL, False)) {
xtermCopyFontInfo(infoOut, infoRef);
TRACE(("...cannot load bold font '%s'\n", NonNull(*nameOutP)));
} else {
@@ -1408,7 +1419,7 @@ loadWideFP(XtermWidget xw,
}
if (check_fontname(*nameOutP)) {
- if (xtermOpenFont(xw, *nameOutP, infoOut, False)
+ if (xtermOpenFont(xw, *nameOutP, infoOut, NULL, False)
&& is_derived_font_name(*nameOutP)
&& EmptyFont(infoOut->fs)) {
xtermCloseFont2(xw, infoOut - fWide, fWide);
@@ -1452,7 +1463,7 @@ loadWBoldFP(XtermWidget xw,
if (check_fontname(*nameOutP)) {
- if (xtermOpenFont(xw, *nameOutP, infoOut, False)
+ if (xtermOpenFont(xw, *nameOutP, infoOut, NULL, False)
&& is_derived_font_name(*nameOutP)
&& !compatibleWideCounts(wideInfoRef->fs, infoOut->fs)) {
xtermCloseFont2(xw, infoOut - fWBold, fWBold);
@@ -1505,6 +1516,10 @@ loadWBoldFP(XtermWidget xw,
}
#endif
+/*
+ * Load a given bitmap font, along with the bold/wide variants.
+ * Returns nonzero on success.
+ */
int
xtermLoadFont(XtermWidget xw,
const VTFontNames * fonts,
@@ -1514,33 +1529,37 @@ xtermLoadFont(XtermWidget xw,
TScreen *screen = TScreenOf(xw);
VTwin *win = WhichVWin(screen);
- VTFontNames myfonts;
- XTermFonts fnts[fMAX];
+ VTFontNames new_fnames;
+ XTermFonts new_fonts[fMAX];
+ XTermFonts old_fonts[fMAX];
char *tmpname = NULL;
Boolean proportional = False;
+ Boolean recovered;
+ int code = 0;
- memset(&myfonts, 0, sizeof(myfonts));
- memset(fnts, 0, sizeof(fnts));
+ memset(&new_fnames, 0, sizeof(new_fnames));
+ memset(new_fonts, 0, sizeof(new_fonts));
+ memcpy(&old_fonts, screen->fnts, sizeof(old_fonts));
if (fonts != 0)
- myfonts = *fonts;
- if (!check_fontname(myfonts.f_n))
- return 0;
+ new_fnames = *fonts;
+ if (!check_fontname(new_fnames.f_n))
+ return code;
if (fontnum == fontMenu_fontescape
- && myfonts.f_n != screen->MenuFontName(fontnum)) {
- if ((tmpname = x_strdup(myfonts.f_n)) == 0)
- return 0;
+ && new_fnames.f_n != screen->MenuFontName(fontnum)) {
+ if ((tmpname = x_strdup(new_fnames.f_n)) == 0)
+ return code;
}
- TRACE(("Begin Cgs - xtermLoadFont(%s)\n", myfonts.f_n));
+ TRACE(("Begin Cgs - xtermLoadFont(%s)\n", new_fnames.f_n));
releaseWindowGCs(xw, win);
#define DbgResource(name, field, index) \
TRACE(("xtermLoadFont #%d "name" %s%s\n", \
fontnum, \
- (fnts[index].warn == fwResource) ? "*" : " ", \
- NonNull(myfonts.field)))
+ (new_fonts[index].warn == fwResource) ? "*" : " ", \
+ NonNull(new_fnames.field)))
DbgResource("normal", f_n, fNorm);
DbgResource("bold ", f_b, fBold);
#if OPT_WIDE_CHARS
@@ -1549,16 +1568,17 @@ xtermLoadFont(XtermWidget xw,
#endif
if (!loadNormFP(xw,
- &myfonts.f_n,
- &fnts[fNorm],
+ &new_fnames.f_n,
+ &new_fonts[fNorm],
+ &old_fonts[fNorm],
fontnum))
goto bad;
if (!loadBoldFP(xw,
- &myfonts.f_b,
- &fnts[fBold],
- myfonts.f_n,
- &fnts[fNorm],
+ &new_fnames.f_b,
+ &new_fonts[fBold],
+ new_fnames.f_n,
+ &new_fonts[fNorm],
fontnum))
goto bad;
@@ -1570,20 +1590,20 @@ xtermLoadFont(XtermWidget xw,
if_OPT_WIDE_CHARS(screen, {
if (!loadWideFP(xw,
- &myfonts.f_w,
- &fnts[fWide],
- myfonts.f_n,
- &fnts[fNorm],
+ &new_fnames.f_w,
+ &new_fonts[fWide],
+ new_fnames.f_n,
+ &new_fonts[fNorm],
fontnum))
goto bad;
if (!loadWBoldFP(xw,
- &myfonts.f_wb,
- &fnts[fWBold],
- myfonts.f_w,
- &fnts[fWide],
- myfonts.f_b,
- &fnts[fBold],
+ &new_fnames.f_wb,
+ &new_fonts[fWBold],
+ new_fnames.f_w,
+ &new_fonts[fWide],
+ new_fnames.f_b,
+ &new_fonts[fBold],
fontnum))
goto bad;
@@ -1593,30 +1613,30 @@ xtermLoadFont(XtermWidget xw,
* Normal/bold fonts should be the same width. Also, the min/max
* values should be the same.
*/
- if (fnts[fNorm].fs != 0
- && fnts[fBold].fs != 0
- && (!is_fixed_font(fnts[fNorm].fs)
- || !is_fixed_font(fnts[fBold].fs)
- || differing_widths(fnts[fNorm].fs, fnts[fBold].fs))) {
+ if (new_fonts[fNorm].fs != 0
+ && new_fonts[fBold].fs != 0
+ && (!is_fixed_font(new_fonts[fNorm].fs)
+ || !is_fixed_font(new_fonts[fBold].fs)
+ || differing_widths(new_fonts[fNorm].fs, new_fonts[fBold].fs))) {
TRACE(("Proportional font! normal %d/%d, bold %d/%d\n",
- fnts[fNorm].fs->min_bounds.width,
- fnts[fNorm].fs->max_bounds.width,
- fnts[fBold].fs->min_bounds.width,
- fnts[fBold].fs->max_bounds.width));
+ new_fonts[fNorm].fs->min_bounds.width,
+ new_fonts[fNorm].fs->max_bounds.width,
+ new_fonts[fBold].fs->min_bounds.width,
+ new_fonts[fBold].fs->max_bounds.width));
proportional = True;
}
if_OPT_WIDE_CHARS(screen, {
- if (fnts[fWide].fs != 0
- && fnts[fWBold].fs != 0
- && (!is_fixed_font(fnts[fWide].fs)
- || !is_fixed_font(fnts[fWBold].fs)
- || differing_widths(fnts[fWide].fs, fnts[fWBold].fs))) {
+ if (new_fonts[fWide].fs != 0
+ && new_fonts[fWBold].fs != 0
+ && (!is_fixed_font(new_fonts[fWide].fs)
+ || !is_fixed_font(new_fonts[fWBold].fs)
+ || differing_widths(new_fonts[fWide].fs, new_fonts[fWBold].fs))) {
TRACE(("Proportional font! wide %d/%d, wide bold %d/%d\n",
- fnts[fWide].fs->min_bounds.width,
- fnts[fWide].fs->max_bounds.width,
- fnts[fWBold].fs->min_bounds.width,
- fnts[fWBold].fs->max_bounds.width));
+ new_fonts[fWide].fs->min_bounds.width,
+ new_fonts[fWide].fs->max_bounds.width,
+ new_fonts[fWBold].fs->min_bounds.width,
+ new_fonts[fWBold].fs->max_bounds.width));
proportional = True;
}
});
@@ -1635,13 +1655,13 @@ xtermLoadFont(XtermWidget xw,
screen->ifnts_ok = False;
#endif
- xtermCopyFontInfo(GetNormalFont(screen, fNorm), &fnts[fNorm]);
- xtermCopyFontInfo(GetNormalFont(screen, fBold), &fnts[fBold]);
+ xtermCopyFontInfo(GetNormalFont(screen, fNorm), &new_fonts[fNorm]);
+ xtermCopyFontInfo(GetNormalFont(screen, fBold), &new_fonts[fBold]);
#if OPT_WIDE_CHARS
- xtermCopyFontInfo(GetNormalFont(screen, fWide), &fnts[fWide]);
- if (fnts[fWBold].fs == NULL)
- xtermCopyFontInfo(GetNormalFont(screen, fWide), &fnts[fWide]);
- xtermCopyFontInfo(GetNormalFont(screen, fWBold), &fnts[fWBold]);
+ xtermCopyFontInfo(GetNormalFont(screen, fWide), &new_fonts[fWide]);
+ if (new_fonts[fWBold].fs == NULL)
+ xtermCopyFontInfo(GetNormalFont(screen, fWide), &new_fonts[fWide]);
+ xtermCopyFontInfo(GetNormalFont(screen, fWBold), &new_fonts[fWBold]);
#endif
xtermUpdateFontGCs(xw, getNormalFont);
@@ -1672,7 +1692,7 @@ xtermLoadFont(XtermWidget xw,
unsigned ch;
#if OPT_TRACE
-#define TRACE_MISS(index) show_font_misses(#index, &fnts[index])
+#define TRACE_MISS(index) show_font_misses(#index, &new_fonts[index])
TRACE_MISS(fNorm);
TRACE_MISS(fBold);
#if OPT_WIDE_CHARS
@@ -1689,8 +1709,8 @@ xtermLoadFont(XtermWidget xw,
if ((n != UCS_REPL)
&& (n != ch)
&& (screen->fnt_boxes & 2)) {
- if (xtermMissingChar(n, &fnts[fNorm]) ||
- xtermMissingChar(n, &fnts[fBold])) {
+ if (xtermMissingChar(n, &new_fonts[fNorm]) ||
+ xtermMissingChar(n, &new_fonts[fBold])) {
UIntClr(screen->fnt_boxes, 2);
TRACE(("missing graphics character #%d, U+%04X\n",
ch, n));
@@ -1702,12 +1722,12 @@ xtermLoadFont(XtermWidget xw,
#endif
for (ch = 1; ch < 32; ch++) {
- if (xtermMissingChar(ch, &fnts[fNorm])) {
+ if (xtermMissingChar(ch, &new_fonts[fNorm])) {
TRACE(("missing normal char #%d\n", ch));
UIntClr(screen->fnt_boxes, 1);
break;
}
- if (xtermMissingChar(ch, &fnts[fBold])) {
+ if (xtermMissingChar(ch, &new_fonts[fBold])) {
TRACE(("missing bold char #%d\n", ch));
UIntClr(screen->fnt_boxes, 1);
break;
@@ -1724,8 +1744,8 @@ xtermLoadFont(XtermWidget xw,
screen->enbolden = screen->bold_mode;
} else {
screen->enbolden = screen->bold_mode
- && ((fnts[fNorm].fs == fnts[fBold].fs)
- || same_font_name(myfonts.f_n, myfonts.f_b));
+ && ((new_fonts[fNorm].fs == new_fonts[fBold].fs)
+ || same_font_name(new_fnames.f_n, new_fnames.f_b));
}
TRACE(("Will %suse 1-pixel offset/overstrike to simulate bold\n",
screen->enbolden ? "" : "not "));
@@ -1741,7 +1761,7 @@ xtermLoadFont(XtermWidget xw,
update_font_escape();
}
#if OPT_SHIFT_FONTS
- screen->menu_font_sizes[fontnum] = FontSize(fnts[fNorm].fs);
+ screen->menu_font_sizes[fontnum] = FontSize(new_fonts[fNorm].fs);
#endif
}
set_cursor_gcs(xw);
@@ -1756,20 +1776,21 @@ xtermLoadFont(XtermWidget xw,
FREE_FNAME(f_w);
FREE_FNAME(f_wb);
#endif
- if (fnts[fNorm].fn == fnts[fBold].fn) {
- free(fnts[fNorm].fn);
+ if (new_fonts[fNorm].fn == new_fonts[fBold].fn) {
+ free(new_fonts[fNorm].fn);
} else {
- free(fnts[fNorm].fn);
- free(fnts[fBold].fn);
+ free(new_fonts[fNorm].fn);
+ free(new_fonts[fBold].fn);
}
#if OPT_WIDE_CHARS
- free(fnts[fWide].fn);
- free(fnts[fWBold].fn);
+ free(new_fonts[fWide].fn);
+ free(new_fonts[fWBold].fn);
#endif
xtermSetWinSize(xw);
return 1;
bad:
+ recovered = False;
if (tmpname)
free(tmpname);
@@ -1780,15 +1801,15 @@ xtermLoadFont(XtermWidget xw,
SetItemSensitivity(fontMenuEntries[fontnum].widget, True);
#endif
Bell(xw, XkbBI_MinorError, 0);
- myfonts.f_n = screen->MenuFontName(old_fontnum);
- return xtermLoadFont(xw, &myfonts, doresize, old_fontnum);
- } else if (x_strcasecmp(myfonts.f_n, DEFFONT)) {
- int code;
-
- myfonts.f_n = x_strdup(DEFFONT);
- TRACE(("...recovering for TrueType fonts\n"));
- code = xtermLoadFont(xw, &myfonts, doresize, fontnum);
- if (code) {
+ new_fnames.f_n = screen->MenuFontName(old_fontnum);
+ if (xtermLoadFont(xw, &new_fnames, doresize, old_fontnum))
+ recovered = True;
+ } else if (x_strcasecmp(new_fnames.f_n, DEFFONT)
+ && x_strcasecmp(new_fnames.f_n, old_fonts[fNorm].fn)) {
+ new_fnames.f_n = x_strdup(old_fonts[fNorm].fn);
+ TRACE(("...recovering from failed font-load\n"));
+ if (xtermLoadFont(xw, &new_fnames, doresize, fontnum)) {
+ recovered = True;
if (fontnum != fontMenu_fontsel) {
SetItemSensitivity(fontMenuEntries[fontnum].widget,
UsingRenderFont(xw));
@@ -1797,15 +1818,15 @@ xtermLoadFont(XtermWidget xw,
FontHeight(screen),
FontWidth(screen)));
}
- return code;
}
#endif
-
- releaseWindowGCs(xw, win);
-
- xtermCloseFonts(xw, fnts);
- TRACE(("Fail Cgs - xtermLoadFont\n"));
- return 0;
+ if (!recovered) {
+ releaseWindowGCs(xw, win);
+ xtermCloseFonts(xw, new_fonts);
+ TRACE(("Fail Cgs - xtermLoadFont\n"));
+ code = 0;
+ }
+ return code;
}
#if OPT_WIDE_ATTRS
@@ -1853,7 +1874,7 @@ xtermLoadItalics(XtermWidget xw)
} else {
xtermOpenFont(xw,
getNormalFont(screen, n)->fn,
- data, False);
+ data, NULL, False);
}
}
}
@@ -4119,6 +4140,8 @@ findXftGlyph(XtermWidget xw, XftFont *given, unsigned wc)
}
#endif
if (foundXftGlyph(xw, check, wc)) {
+ (void) added;
+ (void) actual;
markXftOpened(xw, which, n, wc);
reportXftFonts(xw, check, "fallback", tag, myReport);
result = check;
@@ -4317,7 +4340,7 @@ lookupOneFontSize(XtermWidget xw, int fontnum)
memset(&fnt, 0, sizeof(fnt));
screen->menu_font_sizes[fontnum] = -1;
- if (xtermOpenFont(xw, screen->MenuFontName(fontnum), &fnt, True)) {
+ if (xtermOpenFont(xw, screen->MenuFontName(fontnum), &fnt, NULL, True)) {
if (fontnum <= fontMenu_lastBuiltin
|| strcmp(fnt.fn, DEFFONT)) {
screen->menu_font_sizes[fontnum] = FontSize(fnt.fs);
@@ -4722,13 +4745,14 @@ HandleSetFont(Widget w GCC_UNUSED,
}
}
-void
+Bool
SetVTFont(XtermWidget xw,
int which,
Bool doresize,
const VTFontNames * fonts)
{
TScreen *screen = TScreenOf(xw);
+ Bool result = False;
TRACE(("SetVTFont(which=%d, f_n=%s, f_b=%s)\n", which,
(fonts && fonts->f_n) ? fonts->f_n : "<null>",
@@ -4737,34 +4761,31 @@ SetVTFont(XtermWidget xw,
if (IsIcon(screen)) {
Bell(xw, XkbBI_MinorError, 0);
} else if (which >= 0 && which < NMENUFONTS) {
- VTFontNames myfonts;
+ VTFontNames new_fnames;
- memset(&myfonts, 0, sizeof(myfonts));
+ memset(&new_fnames, 0, sizeof(new_fnames));
if (fonts != 0)
- myfonts = *fonts;
+ new_fnames = *fonts;
if (which == fontMenu_fontsel) { /* go get the selection */
- FindFontSelection(xw, myfonts.f_n, False);
+ result = FindFontSelection(xw, new_fnames.f_n, False);
} else {
- int oldFont = screen->menu_font_number;
-
#define USE_CACHED(field, name) \
- if (myfonts.field == 0) { \
- myfonts.field = x_strdup(screen->menu_font_names[which][name]); \
- TRACE(("set myfonts." #field " from menu_font_names[%d][" #name "] %s\n", \
- which, NonNull(myfonts.field))); \
+ if (new_fnames.field == NULL) { \
+ new_fnames.field = x_strdup(screen->menu_font_names[which][name]); \
+ TRACE(("set new_fnames." #field " from menu_font_names[%d][" #name "] %s\n", \
+ which, NonNull(new_fnames.field))); \
} else { \
- TRACE(("set myfonts." #field " reused\n")); \
+ TRACE(("set new_fnames." #field " reused\n")); \
}
#define SAVE_FNAME(field, name) \
- if (myfonts.field != 0) { \
- if (screen->menu_font_names[which][name] == 0 \
- || strcmp(screen->menu_font_names[which][name], myfonts.field)) { \
- TRACE(("updating menu_font_names[%d][" #name "] to %s\n", \
- which, myfonts.field)); \
- FREE_STRING(screen->menu_font_names[which][name]); \
- screen->menu_font_names[which][name] = x_strdup(myfonts.field); \
- } \
+ if (new_fnames.field != NULL \
+ && (screen->menu_font_names[which][name] == NULL \
+ || strcmp(screen->menu_font_names[which][name], new_fnames.field))) { \
+ TRACE(("updating menu_font_names[%d][" #name "] to \"%s\"\n", \
+ which, new_fnames.field)); \
+ FREE_STRING(screen->menu_font_names[which][name]); \
+ screen->menu_font_names[which][name] = x_strdup(new_fnames.field); \
}
USE_CACHED(f_n, fNorm);
@@ -4774,7 +4795,7 @@ SetVTFont(XtermWidget xw,
USE_CACHED(f_wb, fWBold);
#endif
if (xtermLoadFont(xw,
- &myfonts,
+ &new_fnames,
doresize, which)) {
/*
* If successful, save the data so that a subsequent query via
@@ -4786,10 +4807,8 @@ SetVTFont(XtermWidget xw,
SAVE_FNAME(f_w, fWide);
SAVE_FNAME(f_wb, fWBold);
#endif
+ result = True;
} else {
- (void) xtermLoadFont(xw,
- xtermFontName(screen->MenuFontName(oldFont)),
- doresize, oldFont);
Bell(xw, XkbBI_MinorError, 0);
}
FREE_FNAME(f_n);
@@ -4802,7 +4821,8 @@ SetVTFont(XtermWidget xw,
} else {
Bell(xw, XkbBI_MinorError, 0);
}
- return;
+ TRACE(("...SetVTFont: %d\n", result));
+ return result;
}
#if OPT_RENDERFONT
diff --git a/fontutils.h b/fontutils.h
index 9d530c5..ceaf44a 100644
--- a/fontutils.h
+++ b/fontutils.h
@@ -37,7 +37,7 @@
/* *INDENT-OFF* */
extern Bool xtermLoadDefaultFonts (XtermWidget /* xw */);
-extern Bool xtermOpenFont (XtermWidget /* xw */, const char */* name */, XTermFonts * /* result */, Bool /* force */);
+extern Bool xtermOpenFont (XtermWidget /* xw */, const char */* name */, XTermFonts * /* result */, XTermFonts * /* current */, Bool /* force */);
extern XTermFonts * getDoubleFont (TScreen * /* screen */, int /* which */);
extern XTermFonts * getItalicFont (TScreen * /* screen */, int /* which */);
extern XTermFonts * getNormalFont (TScreen * /* screen */, int /* which */);
@@ -50,7 +50,7 @@ extern int lookupRelativeFontSize (XtermWidget /* xw */, int /* old */, int /* r
extern int xtermGetFont (const char * /* param */);
extern int xtermLoadFont (XtermWidget /* xw */, const VTFontNames */* fonts */, Bool /* doresize */, int /* fontnum */);
extern void HandleSetFont PROTO_XT_ACTIONS_ARGS;
-extern void SetVTFont (XtermWidget /* xw */, int /* i */, Bool /* doresize */, const VTFontNames */* fonts */);
+extern Bool SetVTFont (XtermWidget /* xw */, int /* i */, Bool /* doresize */, const VTFontNames */* fonts */);
extern void allocFontList (XtermWidget /* xw */, const char * /* name */, XtermFontNames * /* target */, VTFontEnum /* which */, const char * /* source */, Bool /* ttf */);
extern void copyFontList (char *** /* targetp */, char ** /* source */);
extern void initFontLists (XtermWidget /* xw */);
diff --git a/misc.c b/misc.c
index cc323f8..6c5e938 100644
--- a/misc.c
+++ b/misc.c
@@ -3787,9 +3787,9 @@ ChangeFontRequest(XtermWidget xw, String buf)
{
memset(&fonts, 0, sizeof(fonts));
fonts.f_n = name;
- SetVTFont(xw, num, True, &fonts);
- if (num == screen->menu_font_number &&
- num != fontMenu_fontescape) {
+ if (SetVTFont(xw, num, True, &fonts)
+ && num == screen->menu_font_number
+ && num != fontMenu_fontescape) {
screen->EscapeFontName() = x_strdup(name);
}
}
@@ -6237,7 +6237,6 @@ xtermSetenv(const char *var, const char *value)
found = envindex;
environ[found + 1] = NULL;
- environ = environ;
}
environ[found] = TextAlloc(1 + len + strlen(value));
diff --git a/screen.c b/screen.c
index 690e3e2..f84254f 100644
--- a/screen.c
+++ b/screen.c
@@ -1497,7 +1497,7 @@ ScrnRefresh(XtermWidget xw,
screen->topline, toprow, leftcol,
nrows, ncols,
force ? " force" : ""));
-
+ (void) recurse;
++recurse;
if (screen->cursorp.col >= leftcol
diff --git a/xterm.h b/xterm.h
index ec70e43..aa71f96 100644
--- a/xterm.h
+++ b/xterm.h
@@ -967,7 +967,7 @@ extern Bool CheckBufPtrs (TScreen * /* screen */);
extern Bool set_cursor_gcs (XtermWidget /* xw */);
extern char * vt100ResourceToString (XtermWidget /* xw */, const char * /* name */);
extern int VTInit (XtermWidget /* xw */);
-extern void FindFontSelection (XtermWidget /* xw */, const char * /* atom_name */, Bool /* justprobe */);
+extern Bool FindFontSelection (XtermWidget /* xw */, const char * /* atom_name */, Bool /* justprobe */);
extern void HideCursor (void);
extern void RestartBlinking(XtermWidget /* xw */);
extern void ShowCursor (void);
diff --git a/xterm.log.html b/xterm.log.html
index 47d590b..e27dc31 100644
--- a/xterm.log.html
+++ b/xterm.log.html
@@ -991,6 +991,12 @@
2020/02/01</a></h1>
<ul>
+ <li>improve error-recovery when setting a bitmap font for the
+ VT100 window, e.g., in case <em>OSC&nbsp;50</em> failed,
+ restoring the most recent valid font so that a subsequent
+ <em>OSC&nbsp;50</em> reports this correctly (report by David
+ Leadbeater).</li>
+
<li>amend change in <a href="#xterm_352">patch #352</a> for
button-events to fix a case where some followup events were not
processed soon enough (report/patch by Jimmy Aguilar
--
2.24.4

1
meta-oe/recipes-graphics/xorg-app/xterm_353.bb
View File

@ -8,6 +8,7 @@ SRC_URI = "http://invisible-mirror.net/archives/${BPN}/${BP}.tgz \
file://0001-Add-configure-time-check-for-setsid.patch \
file://CVE-2021-27135.patch \
file://CVE-2022-24130.patch \
file://CVE-2022-45063.patch \
"
SRC_URI[md5sum] = "247c30ebfa44623f3a2d100e0cae5c7f"
SRC_URI[sha256sum] = "e521d3ee9def61f5d5c911afc74dd5c3a56ce147c7071c74023ea24cac9bb768"