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trivial: Use O_APPEND for FU_EFIVAR_ATTR_APPEND_WRITE

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This commit is contained in:
Richard Hughes 2020-08-13 12:55:51 +01:00
parent 891de60df5
commit b53661676c
1 changed files with 6 additions and 2 deletions
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8
libfwupdplugin/fu-efivar.c
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@ -349,6 +349,7 @@ fu_efivar_set_data (const gchar *guid, const gchar *name, const guint8 *data,
{ {
#ifndef _WIN32 #ifndef _WIN32
int fd; int fd;
int open_wflags;
gboolean was_immutable; gboolean was_immutable;
g_autofree gchar *fn = fu_efivar_get_filename (guid, name); g_autofree gchar *fn = fu_efivar_get_filename (guid, name);
g_autofree guint8 *buf = g_malloc0 (sizeof(guint32) + sz); g_autofree guint8 *buf = g_malloc0 (sizeof(guint32) + sz);
@ -374,8 +375,11 @@ fu_efivar_set_data (const gchar *guid, const gchar *name, const guint8 *data,
return FALSE; return FALSE;
} }
/* open file for writing */ /* open file for writing, optionally append */
fd = open (fn, O_WRONLY); open_wflags = O_WRONLY;
if (attr & FU_EFIVAR_ATTR_APPEND_WRITE)
open_wflags |= O_APPEND;
fd = open (fn, open_wflags);
if (fd < 0) { if (fd < 0) {
g_set_error (error, g_set_error (error,
G_IO_ERROR, G_IO_ERROR,