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[efi] Add efi_asprintf() and efi_vasprintf()

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Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2023-05-22 13:35:34 +01:00
parent c4a8d90387
commit ce2200d5fb
4 changed files with 53 additions and 10 deletions
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16
src/image/efi_image.c
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@@ -109,18 +109,14 @@ efi_image_path ( struct image *image, EFI_DEVICE_PATH_PROTOCOL *parent ) {
*/
static wchar_t * efi_image_cmdline ( struct image *image ) {
wchar_t *cmdline;
size_t len;
len = ( strlen ( image->name ) +
( image->cmdline ?
( 1 /* " " */ + strlen ( image->cmdline ) ) : 0 ) );
cmdline = zalloc ( ( len + 1 /* NUL */ ) * sizeof ( wchar_t ) );
if ( ! cmdline )
/* Allocate and construct command line */
if ( efi_asprintf ( &cmdline, "%s%s%s", image->name,
( image->cmdline ? " " : "" ),
( image->cmdline ? image->cmdline : "" ) ) < 0 ) {
return NULL;
efi_snprintf ( cmdline, ( len + 1 /* NUL */ ), "%s%s%s",
image->name,
( image->cmdline ? " " : "" ),
( image->cmdline ? image->cmdline : "" ) );
}
return cmdline;
}