diff options
author | Joel Sing <jsing@cvs.openbsd.org> | 2014-04-18 07:09:24 +0000 |
---|---|---|
committer | Joel Sing <jsing@cvs.openbsd.org> | 2014-04-18 07:09:24 +0000 |
commit | 3d00396b3ffca296fc21c4f02a41b9405bb80638 (patch) | |
tree | d5585b9ed9187e25aabc5c5abacee6aac670cb2e /lib/libcrypto/asn1/a_mbstr.c | |
parent | 6d66d8ed4ae2548c53922f4507718fab901348e8 (diff) |
More KNF.
Diffstat (limited to 'lib/libcrypto/asn1/a_mbstr.c')
-rw-r--r-- | lib/libcrypto/asn1/a_mbstr.c | 196 |
1 files changed, 114 insertions, 82 deletions
diff --git a/lib/libcrypto/asn1/a_mbstr.c b/lib/libcrypto/asn1/a_mbstr.c index f6d8da8b3c3..5a909d6ae27 100644 --- a/lib/libcrypto/asn1/a_mbstr.c +++ b/lib/libcrypto/asn1/a_mbstr.c @@ -10,7 +10,7 @@ * are met: * * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. + * 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 @@ -62,7 +62,7 @@ #include <openssl/asn1.h> static int traverse_string(const unsigned char *p, int len, int inform, - int (*rfunc)(unsigned long value, void *in), void *arg); + int (*rfunc)(unsigned long value, void *in), void *arg); static int in_utf8(unsigned long value, void *arg); static int out_utf8(unsigned long value, void *arg); static int type_str(unsigned long value, void *arg); @@ -80,15 +80,17 @@ static int is_printable(unsigned long value); * The 'ncopy' form checks minimum and maximum size limits too. */ -int ASN1_mbstring_copy(ASN1_STRING **out, const unsigned char *in, int len, - int inform, unsigned long mask) +int +ASN1_mbstring_copy(ASN1_STRING **out, const unsigned char *in, int len, + int inform, unsigned long mask) { return ASN1_mbstring_ncopy(out, in, len, inform, mask, 0, 0); } -int ASN1_mbstring_ncopy(ASN1_STRING **out, const unsigned char *in, int len, - int inform, unsigned long mask, - long minsize, long maxsize) +int +ASN1_mbstring_ncopy(ASN1_STRING **out, const unsigned char *in, int len, + int inform, unsigned long mask, + long minsize, long maxsize) { int str_type; int ret; @@ -98,59 +100,62 @@ int ASN1_mbstring_ncopy(ASN1_STRING **out, const unsigned char *in, int len, unsigned char *p; int nchar; char strbuf[32]; - int (*cpyfunc)(unsigned long,void *) = NULL; - if(len == -1) len = strlen((const char *)in); - if(!mask) mask = DIRSTRING_TYPE; + int (*cpyfunc)(unsigned long, void *) = NULL; + + if (len == -1) + len = strlen((const char *)in); + if (!mask) + mask = DIRSTRING_TYPE; /* First do a string check and work out the number of characters */ - switch(inform) { + switch (inform) { - case MBSTRING_BMP: - if(len & 1) { + case MBSTRING_BMP: + if (len & 1) { ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, - ASN1_R_INVALID_BMPSTRING_LENGTH); + ASN1_R_INVALID_BMPSTRING_LENGTH); return -1; } nchar = len >> 1; break; - case MBSTRING_UNIV: - if(len & 3) { + case MBSTRING_UNIV: + if (len & 3) { ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, - ASN1_R_INVALID_UNIVERSALSTRING_LENGTH); + ASN1_R_INVALID_UNIVERSALSTRING_LENGTH); return -1; } nchar = len >> 2; break; - case MBSTRING_UTF8: + case MBSTRING_UTF8: nchar = 0; /* This counts the characters and does utf8 syntax checking */ ret = traverse_string(in, len, MBSTRING_UTF8, in_utf8, &nchar); - if(ret < 0) { + if (ret < 0) { ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, - ASN1_R_INVALID_UTF8STRING); + ASN1_R_INVALID_UTF8STRING); return -1; } break; - case MBSTRING_ASC: + case MBSTRING_ASC: nchar = len; break; - default: + default: ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, ASN1_R_UNKNOWN_FORMAT); return -1; } - if((minsize > 0) && (nchar < minsize)) { + if ((minsize > 0) && (nchar < minsize)) { ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, ASN1_R_STRING_TOO_SHORT); (void) snprintf(strbuf, sizeof strbuf, "%ld", minsize); ERR_add_error_data(2, "minsize=", strbuf); return -1; } - if((maxsize > 0) && (nchar > maxsize)) { + if ((maxsize > 0) && (nchar > maxsize)) { ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, ASN1_R_STRING_TOO_LONG); (void) snprintf(strbuf, sizeof strbuf, "%ld", maxsize); ERR_add_error_data(2, "maxsize=", strbuf); @@ -158,7 +163,7 @@ int ASN1_mbstring_ncopy(ASN1_STRING **out, const unsigned char *in, int len, } /* Now work out minimal type (if any) */ - if(traverse_string(in, len, inform, type_str, &mask) < 0) { + if (traverse_string(in, len, inform, type_str, &mask) < 0) { ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, ASN1_R_ILLEGAL_CHARACTERS); return -1; } @@ -166,24 +171,28 @@ int ASN1_mbstring_ncopy(ASN1_STRING **out, const unsigned char *in, int len, /* Now work out output format and string type */ outform = MBSTRING_ASC; - if(mask & B_ASN1_PRINTABLESTRING) str_type = V_ASN1_PRINTABLESTRING; - else if(mask & B_ASN1_IA5STRING) str_type = V_ASN1_IA5STRING; - else if(mask & B_ASN1_T61STRING) str_type = V_ASN1_T61STRING; - else if(mask & B_ASN1_BMPSTRING) { + if (mask & B_ASN1_PRINTABLESTRING) + str_type = V_ASN1_PRINTABLESTRING; + else if (mask & B_ASN1_IA5STRING) + str_type = V_ASN1_IA5STRING; + else if (mask & B_ASN1_T61STRING) + str_type = V_ASN1_T61STRING; + else if (mask & B_ASN1_BMPSTRING) { str_type = V_ASN1_BMPSTRING; outform = MBSTRING_BMP; - } else if(mask & B_ASN1_UNIVERSALSTRING) { + } else if (mask & B_ASN1_UNIVERSALSTRING) { str_type = V_ASN1_UNIVERSALSTRING; outform = MBSTRING_UNIV; } else { str_type = V_ASN1_UTF8STRING; outform = MBSTRING_UTF8; } - if(!out) return str_type; - if(*out) { + if (!out) + return str_type; + if (*out) { free_out = 0; dest = *out; - if(dest->data) { + if (dest->data) { dest->length = 0; free(dest->data); dest->data = NULL; @@ -192,75 +201,78 @@ int ASN1_mbstring_ncopy(ASN1_STRING **out, const unsigned char *in, int len, } else { free_out = 1; dest = ASN1_STRING_type_new(str_type); - if(!dest) { + if (!dest) { ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, - ERR_R_MALLOC_FAILURE); + ERR_R_MALLOC_FAILURE); return -1; } *out = dest; } /* If both the same type just copy across */ - if(inform == outform) { - if(!ASN1_STRING_set(dest, in, len)) { - ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY,ERR_R_MALLOC_FAILURE); + if (inform == outform) { + if (!ASN1_STRING_set(dest, in, len)) { + ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, + ERR_R_MALLOC_FAILURE); return -1; } return str_type; - } + } /* Work out how much space the destination will need */ - switch(outform) { - case MBSTRING_ASC: + switch (outform) { + case MBSTRING_ASC: outlen = nchar; cpyfunc = cpy_asc; break; - case MBSTRING_BMP: + case MBSTRING_BMP: outlen = nchar << 1; cpyfunc = cpy_bmp; break; - case MBSTRING_UNIV: + case MBSTRING_UNIV: outlen = nchar << 2; cpyfunc = cpy_univ; break; - case MBSTRING_UTF8: + case MBSTRING_UTF8: outlen = 0; traverse_string(in, len, inform, out_utf8, &outlen); cpyfunc = cpy_utf8; break; } - if(!(p = malloc(outlen + 1))) { - if(free_out) ASN1_STRING_free(dest); - ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY,ERR_R_MALLOC_FAILURE); + if (!(p = malloc(outlen + 1))) { + if (free_out) + ASN1_STRING_free(dest); + ASN1err(ASN1_F_ASN1_MBSTRING_NCOPY, ERR_R_MALLOC_FAILURE); return -1; } dest->length = outlen; dest->data = p; p[outlen] = 0; traverse_string(in, len, inform, cpyfunc, &p); - return str_type; + return str_type; } /* This function traverses a string and passes the value of each character * to an optional function along with a void * argument. */ -static int traverse_string(const unsigned char *p, int len, int inform, - int (*rfunc)(unsigned long value, void *in), void *arg) +static int +traverse_string(const unsigned char *p, int len, int inform, + int (*rfunc)(unsigned long value, void *in), void *arg) { unsigned long value; int ret; - while(len) { - if(inform == MBSTRING_ASC) { + while (len) { + if (inform == MBSTRING_ASC) { value = *p++; len--; - } else if(inform == MBSTRING_BMP) { + } else if (inform == MBSTRING_BMP) { value = *p++ << 8; value |= *p++; len -= 2; - } else if(inform == MBSTRING_UNIV) { + } else if (inform == MBSTRING_UNIV) { value = ((unsigned long)*p++) << 24; value |= ((unsigned long)*p++) << 16; value |= *p++ << 8; @@ -268,13 +280,14 @@ static int traverse_string(const unsigned char *p, int len, int inform, len -= 4; } else { ret = UTF8_getc(p, len, &value); - if(ret < 0) return -1; - len -= ret; + if (ret < 0) return -1; + len -= ret; p += ret; } - if(rfunc) { + if (rfunc) { ret = rfunc(value, arg); - if(ret <= 0) return ret; + if (ret <= 0) + return ret; } } return 1; @@ -284,7 +297,8 @@ static int traverse_string(const unsigned char *p, int len, int inform, /* Just count number of characters */ -static int in_utf8(unsigned long value, void *arg) +static int +in_utf8(unsigned long value, void *arg) { int *nchar; nchar = arg; @@ -294,7 +308,8 @@ static int in_utf8(unsigned long value, void *arg) /* Determine size of output as a UTF8 String */ -static int out_utf8(unsigned long value, void *arg) +static int +out_utf8(unsigned long value, void *arg) { int *outlen; outlen = arg; @@ -306,28 +321,33 @@ static int out_utf8(unsigned long value, void *arg) * supplied "mask". */ -static int type_str(unsigned long value, void *arg) +static int +type_str(unsigned long value, void *arg) { unsigned long types; + types = *((unsigned long *)arg); - if((types & B_ASN1_PRINTABLESTRING) && !is_printable(value)) - types &= ~B_ASN1_PRINTABLESTRING; - if((types & B_ASN1_IA5STRING) && (value > 127)) - types &= ~B_ASN1_IA5STRING; - if((types & B_ASN1_T61STRING) && (value > 0xff)) - types &= ~B_ASN1_T61STRING; - if((types & B_ASN1_BMPSTRING) && (value > 0xffff)) - types &= ~B_ASN1_BMPSTRING; - if(!types) return -1; + if ((types & B_ASN1_PRINTABLESTRING) && !is_printable(value)) + types &= ~B_ASN1_PRINTABLESTRING; + if ((types & B_ASN1_IA5STRING) && (value > 127)) + types &= ~B_ASN1_IA5STRING; + if ((types & B_ASN1_T61STRING) && (value > 0xff)) + types &= ~B_ASN1_T61STRING; + if ((types & B_ASN1_BMPSTRING) && (value > 0xffff)) + types &= ~B_ASN1_BMPSTRING; + if (!types) + return -1; *((unsigned long *)arg) = types; return 1; } /* Copy one byte per character ASCII like strings */ -static int cpy_asc(unsigned long value, void *arg) +static int +cpy_asc(unsigned long value, void *arg) { unsigned char **p, *q; + p = arg; q = *p; *q = (unsigned char) value; @@ -337,9 +357,11 @@ static int cpy_asc(unsigned long value, void *arg) /* Copy two byte per character BMPStrings */ -static int cpy_bmp(unsigned long value, void *arg) +static int +cpy_bmp(unsigned long value, void *arg) { unsigned char **p, *q; + p = arg; q = *p; *q++ = (unsigned char) ((value >> 8) & 0xff); @@ -350,9 +372,11 @@ static int cpy_bmp(unsigned long value, void *arg) /* Copy four byte per character UniversalStrings */ -static int cpy_univ(unsigned long value, void *arg) +static int +cpy_univ(unsigned long value, void *arg) { unsigned char **p, *q; + p = arg; q = *p; *q++ = (unsigned char) ((value >> 24) & 0xff); @@ -365,9 +389,11 @@ static int cpy_univ(unsigned long value, void *arg) /* Copy to a UTF8String */ -static int cpy_utf8(unsigned long value, void *arg) +static int +cpy_utf8(unsigned long value, void *arg) { unsigned char **p; + int ret; p = arg; /* We already know there is enough room so pass 0xff as the length */ @@ -377,17 +403,23 @@ static int cpy_utf8(unsigned long value, void *arg) } /* Return 1 if the character is permitted in a PrintableString */ -static int is_printable(unsigned long value) +static int +is_printable(unsigned long value) { int ch; - if(value > 0x7f) return 0; - ch = (int) value; - /* Note: we can't use 'isalnum' because certain accented + + if (value > 0x7f) return 0; + ch = (int)value; + /* Note: we can't use 'isalnum' because certain accented * characters may count as alphanumeric in some environments. */ - if((ch >= 'a') && (ch <= 'z')) return 1; - if((ch >= 'A') && (ch <= 'Z')) return 1; - if((ch >= '0') && (ch <= '9')) return 1; - if ((ch == ' ') || strchr("'()+,-./:=?", ch)) return 1; + if ((ch >= 'a') && (ch <= 'z')) + return 1; + if ((ch >= 'A') && (ch <= 'Z')) + return 1; + if ((ch >= '0') && (ch <= '9')) + return 1; + if ((ch == ' ') || strchr("'()+,-./:=?", ch)) + return 1; return 0; } |