Imported Upstream version 0.5.1

[debian/efibootmgr] / src / lib / efi.c

diff --git a/src/lib/efi.c b/src/lib/efi.c
index 1f0f3dbc94fdf61d4a3a364360600ebef7847eba..99b663871b89c49bbde45763d706875bcd341516 100644 (file)
--- a/src/lib/efi.c
+++ b/src/lib/efi.c
@@ -20,6 +20,7 @@
 
 #define _FILE_OFFSET_BITS 64
 
+#include <ctype.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -171,9 +172,12 @@ create_or_edit_variable(efi_variable_t *var)
 static int
 select_boot_var_names(const struct dirent *d)
 {
-       int num, rc;
-       rc = sscanf(d->d_name, "Boot0%03x-%*s", &num);
-       return rc;
+       if (!strncmp(d->d_name, "Boot", 4) &&
+           isxdigit(d->d_name[4]) && isxdigit(d->d_name[5]) &&
+           isxdigit(d->d_name[6]) && isxdigit(d->d_name[7]) &&
+           d->d_name[8] == '-')
+               return 1;
+       return 0;
 }
 
 int
@@ -716,7 +720,7 @@ make_linux_efi_variable(efi_variable_t *var,
        memset(buffer,    0, sizeof(buffer));
 
        /* VariableName needs to be BootXXXX */
-       sprintf(buffer, "Boot%04x", free_number);
+       sprintf(buffer, "Boot%04X", free_number);
 
        efichar_from_char(var->VariableName, buffer, 1024);