From 5fc5d37330d3535a0f421632694d1e7918fc22d7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Parm=C3=A9nides=20GV?= Date: Tue, 8 Apr 2014 11:38:09 +0200 Subject: Compiles correctly: app/build-native + gradle. --- app/openssl/crypto/asn1/a_bitstr.c | 248 +++++++++++++++++++++++++++++++++++++ 1 file changed, 248 insertions(+) create mode 100644 app/openssl/crypto/asn1/a_bitstr.c (limited to 'app/openssl/crypto/asn1/a_bitstr.c') diff --git a/app/openssl/crypto/asn1/a_bitstr.c b/app/openssl/crypto/asn1/a_bitstr.c new file mode 100644 index 00000000..34179960 --- /dev/null +++ b/app/openssl/crypto/asn1/a_bitstr.c @@ -0,0 +1,248 @@ +/* crypto/asn1/a_bitstr.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include +#include "cryptlib.h" +#include + +int ASN1_BIT_STRING_set(ASN1_BIT_STRING *x, unsigned char *d, int len) +{ return M_ASN1_BIT_STRING_set(x, d, len); } + +int i2c_ASN1_BIT_STRING(ASN1_BIT_STRING *a, unsigned char **pp) + { + int ret,j,bits,len; + unsigned char *p,*d; + + if (a == NULL) return(0); + + len=a->length; + + if (len > 0) + { + if (a->flags & ASN1_STRING_FLAG_BITS_LEFT) + { + bits=(int)a->flags&0x07; + } + else + { + for ( ; len > 0; len--) + { + if (a->data[len-1]) break; + } + j=a->data[len-1]; + if (j & 0x01) bits=0; + else if (j & 0x02) bits=1; + else if (j & 0x04) bits=2; + else if (j & 0x08) bits=3; + else if (j & 0x10) bits=4; + else if (j & 0x20) bits=5; + else if (j & 0x40) bits=6; + else if (j & 0x80) bits=7; + else bits=0; /* should not happen */ + } + } + else + bits=0; + + ret=1+len; + if (pp == NULL) return(ret); + + p= *pp; + + *(p++)=(unsigned char)bits; + d=a->data; + memcpy(p,d,len); + p+=len; + if (len > 0) p[-1]&=(0xff<flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07); /* clear */ + ret->flags|=(ASN1_STRING_FLAG_BITS_LEFT|(i&0x07)); /* set */ + + if (len-- > 1) /* using one because of the bits left byte */ + { + s=(unsigned char *)OPENSSL_malloc((int)len); + if (s == NULL) + { + i=ERR_R_MALLOC_FAILURE; + goto err; + } + memcpy(s,p,(int)len); + s[len-1]&=(0xff<length=(int)len; + if (ret->data != NULL) OPENSSL_free(ret->data); + ret->data=s; + ret->type=V_ASN1_BIT_STRING; + if (a != NULL) (*a)=ret; + *pp=p; + return(ret); +err: + ASN1err(ASN1_F_C2I_ASN1_BIT_STRING,i); + if ((ret != NULL) && ((a == NULL) || (*a != ret))) + M_ASN1_BIT_STRING_free(ret); + return(NULL); + } + +/* These next 2 functions from Goetz Babin-Ebell + */ +int ASN1_BIT_STRING_set_bit(ASN1_BIT_STRING *a, int n, int value) + { + int w,v,iv; + unsigned char *c; + + w=n/8; + v=1<<(7-(n&0x07)); + iv= ~v; + if (!value) v=0; + + if (a == NULL) + return 0; + + a->flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07); /* clear, set on write */ + + if ((a->length < (w+1)) || (a->data == NULL)) + { + if (!value) return(1); /* Don't need to set */ + if (a->data == NULL) + c=(unsigned char *)OPENSSL_malloc(w+1); + else + c=(unsigned char *)OPENSSL_realloc_clean(a->data, + a->length, + w+1); + if (c == NULL) + { + ASN1err(ASN1_F_ASN1_BIT_STRING_SET_BIT,ERR_R_MALLOC_FAILURE); + return 0; + } + if (w+1-a->length > 0) memset(c+a->length, 0, w+1-a->length); + a->data=c; + a->length=w+1; + } + a->data[w]=((a->data[w])&iv)|v; + while ((a->length > 0) && (a->data[a->length-1] == 0)) + a->length--; + return(1); + } + +int ASN1_BIT_STRING_get_bit(ASN1_BIT_STRING *a, int n) + { + int w,v; + + w=n/8; + v=1<<(7-(n&0x07)); + if ((a == NULL) || (a->length < (w+1)) || (a->data == NULL)) + return(0); + return((a->data[w]&v) != 0); + } + +/* + * Checks if the given bit string contains only bits specified by + * the flags vector. Returns 0 if there is at least one bit set in 'a' + * which is not specified in 'flags', 1 otherwise. + * 'len' is the length of 'flags'. + */ +int ASN1_BIT_STRING_check(ASN1_BIT_STRING *a, + unsigned char *flags, int flags_len) + { + int i, ok; + /* Check if there is one bit set at all. */ + if (!a || !a->data) return 1; + + /* Check each byte of the internal representation of the bit string. */ + ok = 1; + for (i = 0; i < a->length && ok; ++i) + { + unsigned char mask = i < flags_len ? ~flags[i] : 0xff; + /* We are done if there is an unneeded bit set. */ + ok = (a->data[i] & mask) == 0; + } + return ok; + } -- cgit v1.2.3 From 3c3421afd8f74a3aa8d1011de07a8c18f9549210 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Parm=C3=A9nides=20GV?= Date: Tue, 8 Apr 2014 12:04:17 +0200 Subject: Rename app->bitmask_android This way, gradle commands generate apks correctly named. --- app/openssl/crypto/asn1/a_bitstr.c | 248 ------------------------------------- 1 file changed, 248 deletions(-) delete mode 100644 app/openssl/crypto/asn1/a_bitstr.c (limited to 'app/openssl/crypto/asn1/a_bitstr.c') diff --git a/app/openssl/crypto/asn1/a_bitstr.c b/app/openssl/crypto/asn1/a_bitstr.c deleted file mode 100644 index 34179960..00000000 --- a/app/openssl/crypto/asn1/a_bitstr.c +++ /dev/null @@ -1,248 +0,0 @@ -/* crypto/asn1/a_bitstr.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. - * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] - */ - -#include -#include "cryptlib.h" -#include - -int ASN1_BIT_STRING_set(ASN1_BIT_STRING *x, unsigned char *d, int len) -{ return M_ASN1_BIT_STRING_set(x, d, len); } - -int i2c_ASN1_BIT_STRING(ASN1_BIT_STRING *a, unsigned char **pp) - { - int ret,j,bits,len; - unsigned char *p,*d; - - if (a == NULL) return(0); - - len=a->length; - - if (len > 0) - { - if (a->flags & ASN1_STRING_FLAG_BITS_LEFT) - { - bits=(int)a->flags&0x07; - } - else - { - for ( ; len > 0; len--) - { - if (a->data[len-1]) break; - } - j=a->data[len-1]; - if (j & 0x01) bits=0; - else if (j & 0x02) bits=1; - else if (j & 0x04) bits=2; - else if (j & 0x08) bits=3; - else if (j & 0x10) bits=4; - else if (j & 0x20) bits=5; - else if (j & 0x40) bits=6; - else if (j & 0x80) bits=7; - else bits=0; /* should not happen */ - } - } - else - bits=0; - - ret=1+len; - if (pp == NULL) return(ret); - - p= *pp; - - *(p++)=(unsigned char)bits; - d=a->data; - memcpy(p,d,len); - p+=len; - if (len > 0) p[-1]&=(0xff<flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07); /* clear */ - ret->flags|=(ASN1_STRING_FLAG_BITS_LEFT|(i&0x07)); /* set */ - - if (len-- > 1) /* using one because of the bits left byte */ - { - s=(unsigned char *)OPENSSL_malloc((int)len); - if (s == NULL) - { - i=ERR_R_MALLOC_FAILURE; - goto err; - } - memcpy(s,p,(int)len); - s[len-1]&=(0xff<length=(int)len; - if (ret->data != NULL) OPENSSL_free(ret->data); - ret->data=s; - ret->type=V_ASN1_BIT_STRING; - if (a != NULL) (*a)=ret; - *pp=p; - return(ret); -err: - ASN1err(ASN1_F_C2I_ASN1_BIT_STRING,i); - if ((ret != NULL) && ((a == NULL) || (*a != ret))) - M_ASN1_BIT_STRING_free(ret); - return(NULL); - } - -/* These next 2 functions from Goetz Babin-Ebell - */ -int ASN1_BIT_STRING_set_bit(ASN1_BIT_STRING *a, int n, int value) - { - int w,v,iv; - unsigned char *c; - - w=n/8; - v=1<<(7-(n&0x07)); - iv= ~v; - if (!value) v=0; - - if (a == NULL) - return 0; - - a->flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07); /* clear, set on write */ - - if ((a->length < (w+1)) || (a->data == NULL)) - { - if (!value) return(1); /* Don't need to set */ - if (a->data == NULL) - c=(unsigned char *)OPENSSL_malloc(w+1); - else - c=(unsigned char *)OPENSSL_realloc_clean(a->data, - a->length, - w+1); - if (c == NULL) - { - ASN1err(ASN1_F_ASN1_BIT_STRING_SET_BIT,ERR_R_MALLOC_FAILURE); - return 0; - } - if (w+1-a->length > 0) memset(c+a->length, 0, w+1-a->length); - a->data=c; - a->length=w+1; - } - a->data[w]=((a->data[w])&iv)|v; - while ((a->length > 0) && (a->data[a->length-1] == 0)) - a->length--; - return(1); - } - -int ASN1_BIT_STRING_get_bit(ASN1_BIT_STRING *a, int n) - { - int w,v; - - w=n/8; - v=1<<(7-(n&0x07)); - if ((a == NULL) || (a->length < (w+1)) || (a->data == NULL)) - return(0); - return((a->data[w]&v) != 0); - } - -/* - * Checks if the given bit string contains only bits specified by - * the flags vector. Returns 0 if there is at least one bit set in 'a' - * which is not specified in 'flags', 1 otherwise. - * 'len' is the length of 'flags'. - */ -int ASN1_BIT_STRING_check(ASN1_BIT_STRING *a, - unsigned char *flags, int flags_len) - { - int i, ok; - /* Check if there is one bit set at all. */ - if (!a || !a->data) return 1; - - /* Check each byte of the internal representation of the bit string. */ - ok = 1; - for (i = 0; i < a->length && ok; ++i) - { - unsigned char mask = i < flags_len ? ~flags[i] : 0xff; - /* We are done if there is an unneeded bit set. */ - ok = (a->data[i] & mask) == 0; - } - return ok; - } -- cgit v1.2.3 From 1684c8f398922065a97e7da4dac4ac6a33cc5218 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Parm=C3=A9nides=20GV?= Date: Wed, 9 Apr 2014 16:03:55 +0200 Subject: Back to the standard "app" module. This return to "app" instead of "bitmask_android" is due to this reading: https://developer.android.com/sdk/installing/studio-build.html#projectStructure I'll have to tweak the final apk name in build.gradle. --- app/openssl/crypto/asn1/a_bitstr.c | 248 +++++++++++++++++++++++++++++++++++++ 1 file changed, 248 insertions(+) create mode 100644 app/openssl/crypto/asn1/a_bitstr.c (limited to 'app/openssl/crypto/asn1/a_bitstr.c') diff --git a/app/openssl/crypto/asn1/a_bitstr.c b/app/openssl/crypto/asn1/a_bitstr.c new file mode 100644 index 00000000..34179960 --- /dev/null +++ b/app/openssl/crypto/asn1/a_bitstr.c @@ -0,0 +1,248 @@ +/* crypto/asn1/a_bitstr.c */ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#include +#include "cryptlib.h" +#include + +int ASN1_BIT_STRING_set(ASN1_BIT_STRING *x, unsigned char *d, int len) +{ return M_ASN1_BIT_STRING_set(x, d, len); } + +int i2c_ASN1_BIT_STRING(ASN1_BIT_STRING *a, unsigned char **pp) + { + int ret,j,bits,len; + unsigned char *p,*d; + + if (a == NULL) return(0); + + len=a->length; + + if (len > 0) + { + if (a->flags & ASN1_STRING_FLAG_BITS_LEFT) + { + bits=(int)a->flags&0x07; + } + else + { + for ( ; len > 0; len--) + { + if (a->data[len-1]) break; + } + j=a->data[len-1]; + if (j & 0x01) bits=0; + else if (j & 0x02) bits=1; + else if (j & 0x04) bits=2; + else if (j & 0x08) bits=3; + else if (j & 0x10) bits=4; + else if (j & 0x20) bits=5; + else if (j & 0x40) bits=6; + else if (j & 0x80) bits=7; + else bits=0; /* should not happen */ + } + } + else + bits=0; + + ret=1+len; + if (pp == NULL) return(ret); + + p= *pp; + + *(p++)=(unsigned char)bits; + d=a->data; + memcpy(p,d,len); + p+=len; + if (len > 0) p[-1]&=(0xff<flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07); /* clear */ + ret->flags|=(ASN1_STRING_FLAG_BITS_LEFT|(i&0x07)); /* set */ + + if (len-- > 1) /* using one because of the bits left byte */ + { + s=(unsigned char *)OPENSSL_malloc((int)len); + if (s == NULL) + { + i=ERR_R_MALLOC_FAILURE; + goto err; + } + memcpy(s,p,(int)len); + s[len-1]&=(0xff<length=(int)len; + if (ret->data != NULL) OPENSSL_free(ret->data); + ret->data=s; + ret->type=V_ASN1_BIT_STRING; + if (a != NULL) (*a)=ret; + *pp=p; + return(ret); +err: + ASN1err(ASN1_F_C2I_ASN1_BIT_STRING,i); + if ((ret != NULL) && ((a == NULL) || (*a != ret))) + M_ASN1_BIT_STRING_free(ret); + return(NULL); + } + +/* These next 2 functions from Goetz Babin-Ebell + */ +int ASN1_BIT_STRING_set_bit(ASN1_BIT_STRING *a, int n, int value) + { + int w,v,iv; + unsigned char *c; + + w=n/8; + v=1<<(7-(n&0x07)); + iv= ~v; + if (!value) v=0; + + if (a == NULL) + return 0; + + a->flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07); /* clear, set on write */ + + if ((a->length < (w+1)) || (a->data == NULL)) + { + if (!value) return(1); /* Don't need to set */ + if (a->data == NULL) + c=(unsigned char *)OPENSSL_malloc(w+1); + else + c=(unsigned char *)OPENSSL_realloc_clean(a->data, + a->length, + w+1); + if (c == NULL) + { + ASN1err(ASN1_F_ASN1_BIT_STRING_SET_BIT,ERR_R_MALLOC_FAILURE); + return 0; + } + if (w+1-a->length > 0) memset(c+a->length, 0, w+1-a->length); + a->data=c; + a->length=w+1; + } + a->data[w]=((a->data[w])&iv)|v; + while ((a->length > 0) && (a->data[a->length-1] == 0)) + a->length--; + return(1); + } + +int ASN1_BIT_STRING_get_bit(ASN1_BIT_STRING *a, int n) + { + int w,v; + + w=n/8; + v=1<<(7-(n&0x07)); + if ((a == NULL) || (a->length < (w+1)) || (a->data == NULL)) + return(0); + return((a->data[w]&v) != 0); + } + +/* + * Checks if the given bit string contains only bits specified by + * the flags vector. Returns 0 if there is at least one bit set in 'a' + * which is not specified in 'flags', 1 otherwise. + * 'len' is the length of 'flags'. + */ +int ASN1_BIT_STRING_check(ASN1_BIT_STRING *a, + unsigned char *flags, int flags_len) + { + int i, ok; + /* Check if there is one bit set at all. */ + if (!a || !a->data) return 1; + + /* Check each byte of the internal representation of the bit string. */ + ok = 1; + for (i = 0; i < a->length && ok; ++i) + { + unsigned char mask = i < flags_len ? ~flags[i] : 0xff; + /* We are done if there is an unneeded bit set. */ + ok = (a->data[i] & mask) == 0; + } + return ok; + } -- cgit v1.2.3