LCOV - code coverage report
Current view: top level - builds/gnutls/coverage/gnutls-git/lib - str.h (source / functions) Hit Total Coverage
Test: GnuTLS-3.6.14 Code Coverage Lines: 14 14 100.0 %
Date: 2020-10-30 04:50:48 Functions: 0 0 -
Legend: Lines: hit not hit

          Line data    Source code
       1             : /*
       2             :  * Copyright (C) 2000-2012 Free Software Foundation, Inc.
       3             :  * Copyright (C) 2016-2017 Red Hat, Inc.
       4             :  *
       5             :  * Author: Nikos Mavrogiannopoulos
       6             :  *
       7             :  * This file is part of GnuTLS.
       8             :  *
       9             :  * The GnuTLS is free software; you can redistribute it and/or
      10             :  * modify it under the terms of the GNU Lesser General Public License
      11             :  * as published by the Free Software Foundation; either version 2.1 of
      12             :  * the License, or (at your option) any later version.
      13             :  *
      14             :  * This library is distributed in the hope that it will be useful, but
      15             :  * WITHOUT ANY WARRANTY; without even the implied warranty of
      16             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      17             :  * Lesser General Public License for more details.
      18             :  *
      19             :  * You should have received a copy of the GNU Lesser General Public License
      20             :  * along with this program.  If not, see <https://www.gnu.org/licenses/>
      21             :  *
      22             :  */
      23             : 
      24             : #ifndef GNUTLS_LIB_STR_H
      25             : #define GNUTLS_LIB_STR_H
      26             : 
      27             : #include <config.h>
      28             : #include "gnutls_int.h"
      29             : #include "errors.h"
      30             : #include <datum.h>
      31             : #include <c-ctype.h>
      32             : #include "errors.h"
      33             : 
      34             : #ifdef HAVE_DCGETTEXT
      35             : # include "gettext.h"
      36             : # define _(String) dgettext (PACKAGE, String)
      37             : # define N_(String) gettext_noop (String)
      38             : #else
      39             : # define _(String) String
      40             : # define N_(String) String
      41             : #endif
      42             : 
      43             : int gnutls_utf8_password_normalize(const uint8_t *password, unsigned password_len,
      44             :                                    gnutls_datum_t *out, unsigned flags);
      45             : 
      46             : #define _gnutls_utf8_password_normalize(p, plen, out, ignore_errs) \
      47             :         gnutls_utf8_password_normalize((unsigned char*)p, plen, out, \
      48             :                 ignore_errs?(GNUTLS_UTF8_IGNORE_ERRS):0)
      49             : 
      50             : int _gnutls_idna_email_map(const char *input, unsigned ilen, gnutls_datum_t *output);
      51             : int _gnutls_idna_email_reverse_map(const char *input, unsigned ilen, gnutls_datum_t *output);
      52             : 
      53        1805 : inline static unsigned _gnutls_str_is_print(const char *str, unsigned size)
      54             : {
      55        1805 :         unsigned i;
      56      239152 :         for (i=0;i<size;i++) {
      57      239152 :                 if (!c_isprint(str[i]))
      58             :                         return 0;
      59             :         }
      60             :         return 1;
      61             : }
      62             : 
      63        2036 : inline static unsigned _gnutls_dnsname_is_valid(const char *str, unsigned size)
      64             : {
      65        2036 :         unsigned i;
      66      127129 :         for (i=0;i<size;i++) {
      67      125623 :                 if (!(c_isalnum(str[i]) || str[i] == '-' || str[i] == '.'))
      68             :                         return 0;
      69             :         }
      70             :         return 1;
      71             : }
      72             : 
      73        1455 : inline static bool _gnutls_has_embedded_null(const char *str, unsigned size)
      74             : {
      75        1455 :         if (strlen(str) != size)
      76           2 :                 return true;
      77             :         return false;
      78             : }
      79             : 
      80             : void _gnutls_str_cpy(char *dest, size_t dest_tot_size, const char *src);
      81             : void _gnutls_str_cat(char *dest, size_t dest_tot_size, const char *src);
      82             : 
      83             : typedef struct gnutls_buffer_st {
      84             :         uint8_t *allocd;        /* pointer to allocated data */
      85             :         uint8_t *data;          /* API: pointer to data to copy from */
      86             :         size_t max_length;
      87             :         size_t length;          /* API: current length */
      88             : } gnutls_buffer_st;
      89             : 
      90             : /* Initialize a buffer */
      91             : void _gnutls_buffer_init(gnutls_buffer_st *);
      92             : 
      93             : /* Free the data in a buffer */
      94             : void _gnutls_buffer_clear(gnutls_buffer_st *);
      95             : 
      96             : /* Set the buffer data to be of zero length */
      97          63 : inline static void _gnutls_buffer_reset(gnutls_buffer_st * buf)
      98             : {
      99          63 :         buf->data = buf->allocd;
     100          63 :         buf->length = 0;
     101             : }
     102             : 
     103             : int _gnutls_buffer_resize(gnutls_buffer_st *, size_t new_size);
     104             : 
     105             : int _gnutls_buffer_append_str(gnutls_buffer_st *, const char *str);
     106             : 
     107             : #define _gnutls_buffer_append_data gnutls_buffer_append_data
     108             : 
     109             : #include <num.h>
     110             : 
     111             : int _gnutls_buffer_append_prefix(gnutls_buffer_st * buf, int pfx_size,
     112             :                                  size_t data_size);
     113             : 
     114             : int _gnutls_buffer_append_mpi(gnutls_buffer_st * buf, int pfx_size,
     115             :                               bigint_t, int lz);
     116             : 
     117             : int _gnutls_buffer_append_fixed_mpi(gnutls_buffer_st * buf,
     118             :                                     bigint_t mpi, unsigned size);
     119             : 
     120             : int _gnutls_buffer_append_data_prefix(gnutls_buffer_st * buf, int pfx_size,
     121             :                                       const void *data, size_t data_size);
     122             : int _gnutls_buffer_pop_data(gnutls_buffer_st *, void *, size_t size);
     123             : void _gnutls_buffer_pop_datum(gnutls_buffer_st *, gnutls_datum_t *,
     124             :                               size_t max_size);
     125             : 
     126             : int _gnutls_buffer_pop_prefix8(gnutls_buffer_st *, uint8_t *, int check);
     127             : 
     128             : /* 32-bit prefix */
     129             : int _gnutls_buffer_pop_prefix32(gnutls_buffer_st * buf, size_t * data_size,
     130             :                                 int check);
     131             : 
     132             : int _gnutls_buffer_pop_prefix24(gnutls_buffer_st * buf, size_t * data_size,
     133             :                                 int check);
     134             : 
     135             : /* 32-bit prefix */
     136             : int _gnutls_buffer_pop_datum_prefix32(gnutls_buffer_st * buf,
     137             :                                       gnutls_datum_t * data);
     138             : 
     139             : /* 16-bit prefix */
     140             : int _gnutls_buffer_pop_datum_prefix16(gnutls_buffer_st * buf,
     141             :                                       gnutls_datum_t * data);
     142             : 
     143             : /* 8-bit prefix */
     144             : int _gnutls_buffer_pop_datum_prefix8(gnutls_buffer_st * buf,
     145             :                                      gnutls_datum_t * data);
     146             : 
     147             : int _gnutls_buffer_to_datum(gnutls_buffer_st * str, gnutls_datum_t * data, unsigned is_str);
     148             : 
     149             : inline static
     150             : void _gnutls_ro_buffer_from_datum(gnutls_buffer_st * str, gnutls_datum_t * data)
     151             : {
     152             :         _gnutls_buffer_init(str);
     153             :         str->length = data->size;
     154             :         str->max_length = data->size;
     155             :         str->data = data->data;
     156             : }
     157             : 
     158             : int
     159             : _gnutls_buffer_append_escape(gnutls_buffer_st * dest, const void *data,
     160             :                              size_t data_size, const char *invalid_chars);
     161             : int _gnutls_buffer_unescape(gnutls_buffer_st * dest);
     162             : 
     163             : #ifndef __attribute__
     164             : /* This feature is available in gcc versions 2.5 and later.  */
     165             : #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
     166             : #define __attribute__(Spec)     /* empty */
     167             : #endif
     168             : #endif
     169             : 
     170             : int _gnutls_buffer_append_printf(gnutls_buffer_st * dest, const char *fmt,
     171             :                                  ...)
     172             :     __attribute__ ((format(printf, 2, 3)));
     173             : 
     174             : void _gnutls_buffer_hexprint(gnutls_buffer_st * str,
     175             :                              const void *data, size_t len);
     176             : int _gnutls_buffer_base64print(gnutls_buffer_st * str,
     177             :                                 const void *data, size_t len);
     178             : void _gnutls_buffer_hexdump(gnutls_buffer_st * str, const void *data,
     179             :                             size_t len, const char *spc);
     180             : void _gnutls_buffer_asciiprint(gnutls_buffer_st * str,
     181             :                                const char *data, size_t len);
     182             : 
     183             : char *_gnutls_bin2hex(const void *old, size_t oldlen, char *buffer,
     184             :                       size_t buffer_size, const char *separator);
     185             : int _gnutls_hex2bin(const char *hex_data, size_t hex_size,
     186             :                     uint8_t * bin_data, size_t * bin_size);
     187             : 
     188             : int _gnutls_hostname_compare(const char *certname, size_t certnamesize,
     189             :                              const char *hostname, unsigned vflags);
     190             : 
     191             : #define MAX_CN 256
     192             : #define MAX_DN 1024
     193             : 
     194             : #define BUFFER_APPEND(b, x, s) { \
     195             :         ret = _gnutls_buffer_append_data(b, x, s); \
     196             :         if (ret < 0) { \
     197             :             gnutls_assert(); \
     198             :             return ret; \
     199             :         } \
     200             :     }
     201             : 
     202             : /* append data prefixed with 4-bytes length field*/
     203             : #define BUFFER_APPEND_PFX4(b, x, s) { \
     204             :         ret = _gnutls_buffer_append_data_prefix(b, 32, x, s); \
     205             :         if (ret < 0) { \
     206             :             gnutls_assert(); \
     207             :             return ret; \
     208             :         } \
     209             :     }
     210             : 
     211             : #define BUFFER_APPEND_PFX3(b, x, s) { \
     212             :         ret = _gnutls_buffer_append_data_prefix(b, 24, x, s); \
     213             :         if (ret < 0) { \
     214             :             gnutls_assert(); \
     215             :             return ret; \
     216             :         } \
     217             :     }
     218             : 
     219             : #define BUFFER_APPEND_PFX2(b, x, s) { \
     220             :         ret = _gnutls_buffer_append_data_prefix(b, 16, x, s); \
     221             :         if (ret < 0) { \
     222             :             gnutls_assert(); \
     223             :             return ret; \
     224             :         } \
     225             :     }
     226             : 
     227             : #define BUFFER_APPEND_PFX1(b, x, s) { \
     228             :         ret = _gnutls_buffer_append_data_prefix(b, 8, x, s); \
     229             :         if (ret < 0) { \
     230             :             gnutls_assert(); \
     231             :             return ret; \
     232             :         } \
     233             :     }
     234             : 
     235             : #define BUFFER_APPEND_NUM(b, s) { \
     236             :         ret = _gnutls_buffer_append_prefix(b, 32, s); \
     237             :         if (ret < 0) { \
     238             :             gnutls_assert(); \
     239             :             return ret; \
     240             :         } \
     241             :     }
     242             : 
     243             : #define BUFFER_APPEND_TS(b, s) { \
     244             :         ret = _gnutls_buffer_append_prefix(b, 32, (uint64_t) s.tv_sec >> 32); \
     245             :         if (ret < 0) { \
     246             :             gnutls_assert(); \
     247             :             return ret; \
     248             :         } \
     249             :         ret = _gnutls_buffer_append_prefix(b, 32, s.tv_sec & 0xFFFFFFFF); \
     250             :         if (ret < 0) { \
     251             :             gnutls_assert(); \
     252             :             return ret; \
     253             :         } \
     254             :         ret = _gnutls_buffer_append_prefix(b, 32, s.tv_nsec); \
     255             :         if (ret < 0) { \
     256             :             gnutls_assert(); \
     257             :             return ret; \
     258             :         } \
     259             :     }
     260             : 
     261             : #define BUFFER_POP(b, x, s) { \
     262             :         ret = _gnutls_buffer_pop_data(b, x, s); \
     263             :         if (ret < 0) { \
     264             :             ret = GNUTLS_E_PARSING_ERROR; \
     265             :             gnutls_assert(); \
     266             :             goto error; \
     267             :         } \
     268             :     }
     269             : 
     270             : #define BUFFER_POP_DATUM(b, o) { \
     271             :         gnutls_datum_t d; \
     272             :         ret = _gnutls_buffer_pop_datum_prefix32(b, &d); \
     273             :         if (ret >= 0) \
     274             :             ret = _gnutls_set_datum (o, d.data, d.size); \
     275             :         if (ret < 0) { \
     276             :             gnutls_assert(); \
     277             :             goto error; \
     278             :         } \
     279             :     }
     280             : 
     281             : #define BUFFER_POP_NUM(b, o) { \
     282             :         size_t s; \
     283             :         ret = _gnutls_buffer_pop_prefix32(b, &s, 0); \
     284             :         if (ret < 0) { \
     285             :             gnutls_assert(); \
     286             :             goto error; \
     287             :         } \
     288             :         o = s; \
     289             :     }
     290             : 
     291             : #define BUFFER_POP_CAST_NUM(b, o) { \
     292             :         size_t s; \
     293             :         ret = _gnutls_buffer_pop_prefix32(b, &s, 0); \
     294             :         if (ret < 0) { \
     295             :             gnutls_assert(); \
     296             :             goto error; \
     297             :         } \
     298             :         o = (void *) (intptr_t)(s); \
     299             :     }
     300             : 
     301             : #define BUFFER_POP_TS(b, o) { \
     302             :         size_t s; \
     303             :         uint64_t v; \
     304             :         ret = _gnutls_buffer_pop_prefix32(b, &s, 0); \
     305             :         if (ret < 0) { \
     306             :             gnutls_assert(); \
     307             :             goto error; \
     308             :         } \
     309             :         v = s; \
     310             :         ret = _gnutls_buffer_pop_prefix32(b, &s, 0); \
     311             :         if (ret < 0) { \
     312             :             gnutls_assert(); \
     313             :             goto error; \
     314             :         } \
     315             :         v = (v << 32) | s; \
     316             :         ret = _gnutls_buffer_pop_prefix32(b, &s, 0); \
     317             :         if (ret < 0) { \
     318             :             gnutls_assert(); \
     319             :             goto error; \
     320             :         } \
     321             :         o.tv_sec = v; \
     322             :         o.tv_nsec = s; \
     323             :     }
     324             : 
     325             : #endif /* GNUTLS_LIB_STR_H */

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