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author | Cyrille Bagard <nocbos@gmail.com> | 2023-05-15 06:18:27 (GMT) |
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committer | Cyrille Bagard <nocbos@gmail.com> | 2023-05-15 06:18:27 (GMT) |
commit | 891258b135000eda6f95f2a38db37bc073b0502b (patch) | |
tree | 7713a217ae9b25075917f85ed4e50e0f5b358cf6 | |
parent | b32dc8eb03390ca2af7a46119ab150d7b6d5bfd9 (diff) |
Handle strings with length for parsing.
-rw-r--r-- | src/common/szstr.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/common/szstr.h b/src/common/szstr.h new file mode 100644 index 0000000..aadbb28 --- /dev/null +++ b/src/common/szstr.h @@ -0,0 +1,76 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * szstr.h - prototypes pour une manipulation de chaînes issues de Flex/Bison + * + * Copyright (C) 2023 Cyrille Bagard + * + * This file is part of Chrysalide. + * + * Chrysalide is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * Chrysalide is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with Chrysalide. If not, see <http://www.gnu.org/licenses/>. + */ + + +#ifndef _COMMON_SZSTR_H +#define _COMMON_SZSTR_H + + +#include <string.h> +#include <sys/types.h> + + + +/* Structure associant une chaîne et sa taille */ +typedef struct _sized_string_t +{ + char *data; /* Chaîne de caractères */ + size_t len; /* Taille correspondante */ + +} sized_string_t; + + +#define init_szstr(s) \ + do \ + { \ + (s)->data = NULL; \ + (s)->len = 0; \ + } \ + while (0) + +#define exit_szstr(s) \ + do \ + { \ + if ((s)->data != NULL) \ + { \ + free((s)->data); \ + init_szstr(s); \ + } \ + } \ + while (0) + +#define szstrcmp(ss, rs) \ + strncmp((ss)->data, rs, (ss)->len) + +#define szmemcmp(s1, s2) \ + ({ \ + int __result; \ + size_t __n; \ + __n = (s1)->len < (s2)->len ? (s1)->len : (s2)->len; \ + __result = memcmp((s1)->data, (s2)->data, __n); \ + if (__result == 0 && (s1)->len != (s2)->len) \ + __result = (s1)->len < (s2)->len ? -1 : 1; \ + __result; \ + }) + + +#endif /* _COMMON_SZSTR_H */ |