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0ccadff7a2
Resolves: #2143725 Resolves: #2144113 Signed-off-by: Robbie Harwood <rharwood@redhat.com>
78 lines
2.5 KiB
Diff
78 lines
2.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Chris Coulson <chris.coulson@canonical.com>
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Date: Wed, 16 Nov 2022 14:40:04 +0000
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Subject: [PATCH] font: Try opening fonts from the bundled memdisk
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Signed-off-by: Robbie Harwood <rharwood@redhat.com>
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---
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grub-core/font/font.c | 48 +++++++++++++++++++++++++++++++-----------------
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1 file changed, 31 insertions(+), 17 deletions(-)
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diff --git a/grub-core/font/font.c b/grub-core/font/font.c
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index e6616e610c..e421d1ae6f 100644
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--- a/grub-core/font/font.c
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+++ b/grub-core/font/font.c
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@@ -409,6 +409,27 @@ read_section_as_short (struct font_file_section *section,
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return 0;
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}
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+static grub_file_t
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+try_open_from_prefix (const char *prefix, const char *filename)
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+{
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+ grub_file_t file;
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+ char *fullname, *ptr;
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+
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+ fullname = grub_malloc (grub_strlen (prefix) + grub_strlen (filename) + 1
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+ + sizeof ("/fonts/") + sizeof (".pf2"));
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+ if (!fullname)
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+ return 0;
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+ ptr = grub_stpcpy (fullname, prefix);
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+ ptr = grub_stpcpy (ptr, "/fonts/");
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+ ptr = grub_stpcpy (ptr, filename);
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+ ptr = grub_stpcpy (ptr, ".pf2");
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+ *ptr = 0;
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+
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+ file = grub_buffile_open (fullname, GRUB_FILE_TYPE_FONT, 1024);
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+ grub_free (fullname);
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+ return file;
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+}
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+
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/* Load a font and add it to the beginning of the global font list.
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Returns 0 upon success, nonzero upon failure. */
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grub_font_t
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@@ -427,25 +448,18 @@ grub_font_load (const char *filename)
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file = grub_buffile_open (filename, GRUB_FILE_TYPE_FONT, 1024);
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else
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{
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- const char *prefix = grub_env_get ("prefix");
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- char *fullname, *ptr;
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- if (!prefix)
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+ file = try_open_from_prefix ("(memdisk)", filename);
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+ if (!file)
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{
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- grub_error (GRUB_ERR_FILE_NOT_FOUND, N_("variable `%s' isn't set"),
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- "prefix");
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- goto fail;
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+ const char *prefix = grub_env_get ("prefix");
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+ if (!prefix)
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+ {
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+ grub_error (GRUB_ERR_FILE_NOT_FOUND, N_("variable `%s' isn't set"),
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+ "prefix");
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+ goto fail;
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+ }
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+ file = try_open_from_prefix (prefix, filename);
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}
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- fullname = grub_malloc (grub_strlen (prefix) + grub_strlen (filename) + 1
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- + sizeof ("/fonts/") + sizeof (".pf2"));
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- if (!fullname)
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- goto fail;
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- ptr = grub_stpcpy (fullname, prefix);
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- ptr = grub_stpcpy (ptr, "/fonts/");
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- ptr = grub_stpcpy (ptr, filename);
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- ptr = grub_stpcpy (ptr, ".pf2");
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- *ptr = 0;
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- file = grub_buffile_open (fullname, GRUB_FILE_TYPE_FONT, 1024);
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- grub_free (fullname);
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}
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if (!file)
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goto fail;
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