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* util/grub-mkrescue.c (main): Check that fread succeeded.

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This commit is contained in:
Vladimir Serbinenko 2013-11-29 03:54:21 +01:00
parent af1faca3f8
commit 422e6e886c
2 changed files with 16 additions and 2 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
2013-11-29 Vladimir Serbinenko <phcoder@gmail.com>
* util/grub-mkrescue.c (main): Check that fread succeeded.
2013-11-29 Vladimir Serbinenko <phcoder@gmail.com>
* conf/Makefile.common: Remove -mexplicit-relocs and

14
util/grub-mkrescue.c
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@ -519,7 +519,9 @@ main (int argc, char *argv[])
if (!bi)
grub_util_error (_("cannot open `%s': %s"), bin,
strerror (errno));
fread (buf, 1, 512, bi);
if (fread (buf, 1, 512, bi) != 512)
grub_util_error (_("cannot read `%s': %s"), bin,
strerror (errno));
fclose (bi);
fwrite (buf, 1, 512, sa);
@ -729,10 +731,18 @@ main (int argc, char *argv[])
cdboot = grub_util_path_concat (2, source_dirs[GRUB_INSTALL_PLATFORM_SPARC64_IEEE1275],
"cdboot.img");
in = grub_util_fopen (cdboot, "rb");
if (!in)
grub_util_error (_("cannot open `%s': %s"), cdboot,
strerror (errno));
out = grub_util_fopen (sysarea_img, "wb");
if (!out)
grub_util_error (_("cannot open `%s': %s"), sysarea_img,
strerror (errno));
memset (buf, 0, 512);
fwrite (buf, 1, 512, out);
fread (buf, 1, 512, in);
if (fread (buf, 1, 512, in) != 512)
grub_util_error (_("cannot read `%s': %s"), cdboot,
strerror (errno));
fwrite (buf, 1, 512, out);
fclose (in);
fclose (out);