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libasn1c
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Add helper functions for uint32_t in octet strings

This commit is contained in:
Daniel Willmann 2016-02-02 16:38:40 +01:00 committed by Daniel Willmann
parent 2d4f2bd91c
commit 95a112f75a
2 changed files with 15 additions and 0 deletions
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2
include/asn1c/asn1helpers.h
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@ -10,9 +10,11 @@ void asn1_u32_to_bitstring(BIT_STRING_t *bitstr, uint32_t *buf, uint32_t in);
void asn1_u28_to_bitstring(BIT_STRING_t *bitstr, uint32_t *buf, uint32_t in);
void asn1_u24_to_bitstring(BIT_STRING_t *bitstr, uint32_t *buf, uint32_t in);
int BIT_STRING_fromBuf(BIT_STRING_t *st, const uint8_t *str, unsigned int bit_len);
void asn1_u32_to_str(OCTET_STRING_t *str, uint32_t *buf, uint32_t in);
void asn1_u16_to_str(OCTET_STRING_t *str, uint16_t *buf, uint16_t in);
void asn1_u8_to_str(OCTET_STRING_t *str, uint8_t *buf, uint8_t in);
int asn1_strncpy(char *out, const OCTET_STRING_t *in, size_t n);
uint32_t asn1str_to_u32(const OCTET_STRING_t *in);
uint16_t asn1str_to_u16(const OCTET_STRING_t *in);
uint8_t asn1str_to_u8(const OCTET_STRING_t *in);
uint32_t asn1bitstr_to_u32(const BIT_STRING_t *in);

13
src/asn1helpers.c
View File

@ -90,6 +90,13 @@ int BIT_STRING_fromBuf(BIT_STRING_t *st, const uint8_t *str, unsigned int bit_le
return 0;
}
void asn1_u32_to_str(OCTET_STRING_t *str, uint32_t *buf, uint32_t in)
{
*buf = htonl(in);
str->buf = (uint8_t *) buf;
str->size = sizeof(uint32_t);
}
void asn1_u16_to_str(OCTET_STRING_t *str, uint16_t *buf, uint16_t in)
{
*buf = htons(in);
@ -117,6 +124,12 @@ int asn1_strncpy(char *out, const OCTET_STRING_t *in, size_t n)
return cpylen;
}
uint32_t asn1str_to_u32(const OCTET_STRING_t *in)
{
OSMO_ASSERT(in && in->size == sizeof(uint32_t));
return ntohl(*(uint32_t *)in->buf);
}
uint16_t asn1str_to_u16(const OCTET_STRING_t *in)
{
OSMO_ASSERT(in && in->size == sizeof(uint16_t));