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grub2
0013-libtasn1-changes-for-grub-compatibility.patch
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File 0013-libtasn1-changes-for-grub-compatibility.patch of Package grub2
From f05ba09c9adea447d3ca837c73498b9619306180 Mon Sep 17 00:00:00 2001 From: Daniel Axtens <dja@axtens.net> Date: Fri, 1 May 2020 20:44:29 +1000 Subject: [PATCH 13/23] libtasn1: changes for grub compatibility Do a few things to make libtasn1 compile as part of grub: - redefine _asn1_strcat. grub removed strcat so replace it with the appropriate calls to memcpy and strlen. Use this internally where strcat was used. - replace c_isdigit with grub_isdigit (and don't import c-ctype from gnulib) grub_isdigit provides the same functionality as c_isdigit: it determines if the input is an ASCII digit without regard for locale. - replace GL_ATTRIBUTE_PURE with __attribute__((pure)) which been supported since gcc-2.96. This avoids messing around with gnulib. - adjust libtasn1.h: drop the ASN1_API logic, it's not needed for our modules. Unconditionally support const and pure attributes and adjust header paths. - adjust header paths to "grub/libtasn1.h". - replace a 64 bit division with a call to grub_divmod64, preventing creation of __udivdi3 calls on 32 bit platforms. Signed-off-by: Daniel Axtens <dja@axtens.net> --- v2: Clean up strcat handling, thanks Stefan Berger. --- grub-core/lib/libtasn1/lib/decoding.c | 11 +++++----- grub-core/lib/libtasn1/lib/element.c | 3 ++- grub-core/lib/libtasn1/lib/gstr.c | 4 ++-- grub-core/lib/libtasn1/lib/int.h | 4 ++-- grub-core/lib/libtasn1/lib/parser_aux.c | 7 +++--- include/grub/libtasn1.h | 29 +++++++------------------ 6 files changed, 24 insertions(+), 34 deletions(-) diff --git a/grub-core/lib/libtasn1/lib/decoding.c b/grub-core/lib/libtasn1/lib/decoding.c index b8130b956..beeb6a176 100644 --- a/grub-core/lib/libtasn1/lib/decoding.c +++ b/grub-core/lib/libtasn1/lib/decoding.c @@ -32,7 +32,8 @@ #include <element.h> #include <limits.h> #include <intprops.h> -#include "c-ctype.h" + +#define c_isdigit grub_isdigit #ifdef DEBUG # define warn() fprintf(stderr, "%s: %d\n", __func__, __LINE__) @@ -2016,8 +2017,8 @@ asn1_expand_octet_string (asn1_node_const definitions, asn1_node * element, (p2->type & CONST_ASSIGN)) { strcpy (name, definitions->name); - strcat (name, "."); - strcat (name, p2->name); + _asn1_strcat (name, "."); + _asn1_strcat (name, p2->name); len = sizeof (value); result = asn1_read_value (definitions, name, value, &len); @@ -2034,8 +2035,8 @@ asn1_expand_octet_string (asn1_node_const definitions, asn1_node * element, if (p2) { strcpy (name, definitions->name); - strcat (name, "."); - strcat (name, p2->name); + _asn1_strcat (name, "."); + _asn1_strcat (name, p2->name); result = asn1_create_element (definitions, name, &aux); if (result == ASN1_SUCCESS) diff --git a/grub-core/lib/libtasn1/lib/element.c b/grub-core/lib/libtasn1/lib/element.c index 8cd6b662c..150b9b377 100644 --- a/grub-core/lib/libtasn1/lib/element.c +++ b/grub-core/lib/libtasn1/lib/element.c @@ -30,9 +30,10 @@ #include "parser_aux.h" #include <gstr.h> #include "structure.h" -#include "c-ctype.h" #include "element.h" +#define c_isdigit grub_isdigit + void _asn1_hierarchical_name (asn1_node_const node, char *name, int name_size) { diff --git a/grub-core/lib/libtasn1/lib/gstr.c b/grub-core/lib/libtasn1/lib/gstr.c index 1475ed51b..b729089db 100644 --- a/grub-core/lib/libtasn1/lib/gstr.c +++ b/grub-core/lib/libtasn1/lib/gstr.c @@ -36,13 +36,13 @@ _asn1_str_cat (char *dest, size_t dest_tot_size, const char *src) if (dest_tot_size - dest_size > str_size) { - strcat (dest, src); + _asn1_strcat (dest, src); } else { if (dest_tot_size > dest_size) { - strncat (dest, src, (dest_tot_size - dest_size) - 1); + memcpy (dest + dest_size, src, (dest_tot_size - dest_size) - 1); dest[dest_tot_size - 1] = 0; } } diff --git a/grub-core/lib/libtasn1/lib/int.h b/grub-core/lib/libtasn1/lib/int.h index 404cd1562..edfe84a0e 100644 --- a/grub-core/lib/libtasn1/lib/int.h +++ b/grub-core/lib/libtasn1/lib/int.h @@ -35,7 +35,7 @@ # include <sys/types.h> # endif -# include <libtasn1.h> +# include "grub/libtasn1.h" # define ASN1_SMALL_VALUE_SIZE 16 @@ -115,7 +115,7 @@ extern const tag_and_class_st _asn1_tags[]; # define _asn1_strtoul(n,e,b) strtoul((const char *) n, e, b) # define _asn1_strcmp(a,b) strcmp((const char *)a, (const char *)b) # define _asn1_strcpy(a,b) strcpy((char *)a, (const char *)b) -# define _asn1_strcat(a,b) strcat((char *)a, (const char *)b) +# define _asn1_strcat(a,b) memcpy((char *)a + strlen((const char *)a), (const char *)b, strlen((const char *)b) + 1) # if SIZEOF_UNSIGNED_LONG_INT == 8 # define _asn1_strtou64(n,e,b) strtoul((const char *) n, e, b) diff --git a/grub-core/lib/libtasn1/lib/parser_aux.c b/grub-core/lib/libtasn1/lib/parser_aux.c index c99c5a4cb..a933f03ed 100644 --- a/grub-core/lib/libtasn1/lib/parser_aux.c +++ b/grub-core/lib/libtasn1/lib/parser_aux.c @@ -26,7 +26,8 @@ #include "gstr.h" #include "structure.h" #include "element.h" -#include "c-ctype.h" + +#define c_isdigit grub_isdigit char _asn1_identifierMissing[ASN1_MAX_NAME_SIZE + 1]; /* identifier name not found */ @@ -40,7 +41,7 @@ char _asn1_identifierMissing[ASN1_MAX_NAME_SIZE + 1]; /* identifier name not fou #ifdef __clang__ __attribute__((no_sanitize ("integer"))) #endif - _GL_ATTRIBUTE_PURE static unsigned int _asn1_hash_name (const char *x) + __attribute__((__pure__)) static unsigned int _asn1_hash_name (const char *x) { const unsigned char *s = (unsigned char *) x; unsigned h = 0; @@ -632,7 +633,7 @@ _asn1_ltostr (int64_t v, char str[LTOSTR_MAX_SIZE]) count = 0; do { - d = val / 10; + d = grub_divmod64(val, 10, NULL); r = val - d * 10; temp[start + count] = '0' + (char) r; count++; diff --git a/include/grub/libtasn1.h b/include/grub/libtasn1.h index 0c3a44881..2ea058a3b 100644 --- a/include/grub/libtasn1.h +++ b/include/grub/libtasn1.h @@ -34,29 +34,16 @@ #ifndef LIBTASN1_H # define LIBTASN1_H -# ifndef ASN1_API -# if defined ASN1_BUILDING && defined HAVE_VISIBILITY && HAVE_VISIBILITY -# define ASN1_API __attribute__((__visibility__("default"))) -# elif defined ASN1_BUILDING && defined _MSC_VER && ! defined ASN1_STATIC -# define ASN1_API __declspec(dllexport) -# elif defined _MSC_VER && ! defined ASN1_STATIC -# define ASN1_API __declspec(dllimport) -# else -# define ASN1_API -# endif -# endif +/* grub: ASN1_API is not used */ +# define ASN1_API + +/* grub: all our supported compilers support these attributes */ +# define __LIBTASN1_CONST__ __attribute__((const)) +# define __LIBTASN1_PURE__ __attribute__((pure)) -# ifdef __GNUC__ -# define __LIBTASN1_CONST__ __attribute__((const)) -# define __LIBTASN1_PURE__ __attribute__((pure)) -# else -# define __LIBTASN1_CONST__ -# define __LIBTASN1_PURE__ -# endif -# include <sys/types.h> -# include <time.h> -# include <stdio.h> /* for FILE* */ +# include <grub/types.h> +# include <grub/time.h> # ifdef __cplusplus extern "C" -- 2.31.1
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