From 8c2c35dcc027a77aee48de89093d8770de0a8cf8 Mon Sep 17 00:00:00 2001 From: Paulo Flabiano Smorigo Date: Wed, 22 Jan 2020 12:01:52 +0100 Subject: [PATCH] kern: Add %X option to printf functions The printf(3) function has support for the %X format specifier, to output an unsigned hexadecimal integer in uppercase. This can be achived in GRUB using the %x format specifier in grub_printf() and calling grub_toupper(), but it is more convenient if there is support for %X in grub_printf(). Signed-off-by: Paulo Flabiano Smorigo Signed-off-by: Javier Martinez Canillas Reviewed-by: Daniel Kiper --- grub-core/kern/misc.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) Index: grub-2.04/grub-core/kern/misc.c =================================================================== --- grub-2.04.orig/grub-core/kern/misc.c +++ grub-2.04/grub-core/kern/misc.c @@ -588,7 +588,7 @@ grub_divmod64 (grub_uint64_t n, grub_uin static inline char * grub_lltoa (char *str, int c, unsigned long long n) { - unsigned base = (c == 'x') ? 16 : 10; + unsigned base = ((c == 'x') || (c == 'X')) ? 16 : 10; char *p; if ((long long) n < 0 && c == 'd') @@ -603,7 +603,7 @@ grub_lltoa (char *str, int c, unsigned l do { unsigned d = (unsigned) (n & 0xf); - *p++ = (d > 9) ? d + 'a' - 10 : d + '0'; + *p++ = (d > 9) ? d + ((c == 'x') ? 'a' : 'A') - 10 : d + '0'; } while (n >>= 4); else @@ -676,6 +676,7 @@ parse_printf_args (const char *fmt0, str { case 'p': case 'x': + case 'X': case 'u': case 'd': case 'c': @@ -762,6 +763,7 @@ parse_printf_args (const char *fmt0, str switch (c) { case 'x': + case 'X': case 'u': args->ptr[curn].type = UNSIGNED_INT + longfmt; break; @@ -900,6 +902,7 @@ grub_vsnprintf_real (char *str, grub_siz c = 'x'; /* Fall through. */ case 'x': + case 'X': case 'u': case 'd': {