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The ber_* namespace is used by liblber since time immemorial, 

so move our BER API to the unused ober_* prefix to avoid some
breakage in ports.
Problem diagnosed by jmatthew with ber_free() in samba, but
there are many others as pointed out by sthen.
tests & ok rob
ok sthen (who had an almost identical diff for libutil)
"go head hit it" deraadt
OpenBSD 6.6 errata 002
OPENBSD_6_6
tb 4 years ago
parent
ff0931075f
commit
726bfd4a65
8 changed files with 433 additions and 433 deletions
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  1. +45
    -45
      src/lib/libutil/Symbols.map
  2. +152
    -152
      src/lib/libutil/ber.c
  3. +46
    -46
      src/lib/libutil/ber.h
  4. +62
    -62
      src/lib/libutil/ber_add_string.3
  5. +49
    -49
      src/lib/libutil/ber_get_string.3
  6. +19
    -19
      src/lib/libutil/ber_oid_cmp.3
  7. +27
    -27
      src/lib/libutil/ber_read_elements.3
  8. +33
    -33
      src/lib/libutil/ber_set_header.3

+ 45
- 45
src/lib/libutil/Symbols.map View File

@ -9,51 +9,6 @@
{
global:
bcrypt_pbkdf;
ber_add_bitstring;
ber_add_boolean;
ber_add_enumerated;
ber_add_eoc;
ber_add_integer;
ber_add_noid;
ber_add_nstring;
ber_add_null;
ber_add_oid;
ber_add_oidstring;
ber_add_ostring;
ber_add_sequence;
ber_add_set;
ber_add_string;
ber_calc_len;
ber_free;
ber_free_element;
ber_free_elements;
ber_get_bitstring;
ber_get_boolean;
ber_get_element;
ber_get_enumerated;
ber_get_eoc;
ber_get_integer;
ber_get_nstring;
ber_get_null;
ber_get_oid;
ber_get_ostring;
ber_get_string;
ber_get_writebuf;
ber_getpos;
ber_link_elements;
ber_oid2ber;
ber_oid_cmp;
ber_printf_elements;
ber_read_elements;
ber_replace_elements;
ber_scanf_elements;
ber_set_application;
ber_set_header;
ber_set_readbuf;
ber_set_writecallback;
ber_string2oid;
ber_unlink_elements;
ber_write_elements;
fdforkpty;
fdopenpty;
fmt_scaled;
@ -95,6 +50,51 @@
msgbuf_drain;
msgbuf_init;
msgbuf_write;
ober_add_bitstring;
ober_add_boolean;
ober_add_enumerated;
ober_add_eoc;
ober_add_integer;
ober_add_noid;
ober_add_nstring;
ober_add_null;
ober_add_oid;
ober_add_oidstring;
ober_add_ostring;
ober_add_sequence;
ober_add_set;
ober_add_string;
ober_calc_len;
ober_free;
ober_free_element;
ober_free_elements;
ober_get_bitstring;
ober_get_boolean;
ober_get_element;
ober_get_enumerated;
ober_get_eoc;
ober_get_integer;
ober_get_nstring;
ober_get_null;
ober_get_oid;
ober_get_ostring;
ober_get_string;
ober_get_writebuf;
ober_getpos;
ober_link_elements;
ober_oid2ber;
ober_oid_cmp;
ober_printf_elements;
ober_read_elements;
ober_replace_elements;
ober_scanf_elements;
ober_set_application;
ober_set_header;
ober_set_readbuf;
ober_set_writecallback;
ober_string2oid;
ober_unlink_elements;
ober_write_elements;
ohash_create_entry;
ohash_delete;
ohash_entries;


+ 152
- 152
src/lib/libutil/ber.c View File

@ -1,4 +1,4 @@
/* $OpenBSD: ber.c,v 1.14 2019/08/15 06:11:18 martijn Exp $ */
/* $OpenBSD: ber.c,v 1.14.2.1 2019/10/27 20:05:12 tb Exp $ */
/*
* Copyright (c) 2007, 2012 Reyk Floeter <reyk@openbsd.org>
@ -38,16 +38,16 @@
#define BER_TAG_TYPE_MASK 0x7f
#define BER_CLASS_SHIFT 6
static int ber_dump_element(struct ber *ber, struct ber_element *root);
static void ber_dump_header(struct ber *ber, struct ber_element *root);
static void ber_putc(struct ber *ber, u_char c);
static void ber_write(struct ber *ber, void *buf, size_t len);
static int ober_dump_element(struct ber *ber, struct ber_element *root);
static void ober_dump_header(struct ber *ber, struct ber_element *root);
static void ober_putc(struct ber *ber, u_char c);
static void ober_write(struct ber *ber, void *buf, size_t len);
static ssize_t get_id(struct ber *b, unsigned int *tag, int *class,
int *cstruct);
static ssize_t get_len(struct ber *b, ssize_t *len);
static ssize_t ber_read_element(struct ber *ber, struct ber_element *elm);
static ssize_t ber_getc(struct ber *b, u_char *c);
static ssize_t ber_read(struct ber *ber, void *buf, size_t len);
static ssize_t ober_read_element(struct ber *ber, struct ber_element *elm);
static ssize_t ober_getc(struct ber *b, u_char *c);
static ssize_t ober_read(struct ber *ber, void *buf, size_t len);
#ifdef DEBUG
#define DPRINTF(...) printf(__VA_ARGS__)
@ -56,7 +56,7 @@ static ssize_t ber_read(struct ber *ber, void *buf, size_t len);
#endif
struct ber_element *
ber_get_element(unsigned int encoding)
ober_get_element(unsigned int encoding)
{
struct ber_element *elm;
@ -64,13 +64,13 @@ ber_get_element(unsigned int encoding)
return NULL;
elm->be_encoding = encoding;
ber_set_header(elm, BER_CLASS_UNIVERSAL, BER_TYPE_DEFAULT);
ober_set_header(elm, BER_CLASS_UNIVERSAL, BER_TYPE_DEFAULT);
return elm;
}
void
ber_set_header(struct ber_element *elm, int class, unsigned int type)
ober_set_header(struct ber_element *elm, int class, unsigned int type)
{
elm->be_class = class & BER_CLASS_MASK;
if (type == BER_TYPE_DEFAULT)
@ -79,7 +79,7 @@ ber_set_header(struct ber_element *elm, int class, unsigned int type)
}
void
ber_link_elements(struct ber_element *prev, struct ber_element *elm)
ober_link_elements(struct ber_element *prev, struct ber_element *elm)
{
if (prev != NULL) {
if ((prev->be_encoding == BER_TYPE_SEQUENCE ||
@ -92,7 +92,7 @@ ber_link_elements(struct ber_element *prev, struct ber_element *elm)
}
struct ber_element *
ber_unlink_elements(struct ber_element *prev)
ober_unlink_elements(struct ber_element *prev)
{
struct ber_element *elm;
@ -110,53 +110,53 @@ ber_unlink_elements(struct ber_element *prev)
}
void
ber_replace_elements(struct ber_element *prev, struct ber_element *new)
ober_replace_elements(struct ber_element *prev, struct ber_element *new)
{
struct ber_element *ber, *next;
ber = ber_unlink_elements(prev);
next = ber_unlink_elements(ber);
ber_link_elements(new, next);
ber_link_elements(prev, new);
ber = ober_unlink_elements(prev);
next = ober_unlink_elements(ber);
ober_link_elements(new, next);
ober_link_elements(prev, new);
/* cleanup old element */
ber_free_elements(ber);
ober_free_elements(ber);
}
struct ber_element *
ber_add_sequence(struct ber_element *prev)
ober_add_sequence(struct ber_element *prev)
{
struct ber_element *elm;
if ((elm = ber_get_element(BER_TYPE_SEQUENCE)) == NULL)
if ((elm = ober_get_element(BER_TYPE_SEQUENCE)) == NULL)
return NULL;
ber_link_elements(prev, elm);
ober_link_elements(prev, elm);
return elm;
}
struct ber_element *
ber_add_set(struct ber_element *prev)
ober_add_set(struct ber_element *prev)
{
struct ber_element *elm;
if ((elm = ber_get_element(BER_TYPE_SET)) == NULL)
if ((elm = ober_get_element(BER_TYPE_SET)) == NULL)
return NULL;
ber_link_elements(prev, elm);
ober_link_elements(prev, elm);
return elm;
}
struct ber_element *
ber_add_enumerated(struct ber_element *prev, long long val)
ober_add_enumerated(struct ber_element *prev, long long val)
{
struct ber_element *elm;
u_int i, len = 0;
u_char cur, last = 0;
if ((elm = ber_get_element(BER_TYPE_ENUMERATED)) == NULL)
if ((elm = ober_get_element(BER_TYPE_ENUMERATED)) == NULL)
return NULL;
elm->be_numeric = val;
@ -173,19 +173,19 @@ ber_add_enumerated(struct ber_element *prev, long long val)
}
elm->be_len = len + 1;
ber_link_elements(prev, elm);
ober_link_elements(prev, elm);
return elm;
}
struct ber_element *
ber_add_integer(struct ber_element *prev, long long val)
ober_add_integer(struct ber_element *prev, long long val)
{
struct ber_element *elm;
u_int i, len = 0;
u_char cur, last = 0;
if ((elm = ber_get_element(BER_TYPE_INTEGER)) == NULL)
if ((elm = ober_get_element(BER_TYPE_INTEGER)) == NULL)
return NULL;
elm->be_numeric = val;
@ -202,13 +202,13 @@ ber_add_integer(struct ber_element *prev, long long val)
}
elm->be_len = len + 1;
ber_link_elements(prev, elm);
ober_link_elements(prev, elm);
return elm;
}
int
ber_get_integer(struct ber_element *elm, long long *n)
ober_get_integer(struct ber_element *elm, long long *n)
{
if (elm->be_encoding != BER_TYPE_INTEGER)
return -1;
@ -218,7 +218,7 @@ ber_get_integer(struct ber_element *elm, long long *n)
}
int
ber_get_enumerated(struct ber_element *elm, long long *n)
ober_get_enumerated(struct ber_element *elm, long long *n)
{
if (elm->be_encoding != BER_TYPE_ENUMERATED)
return -1;
@ -228,23 +228,23 @@ ber_get_enumerated(struct ber_element *elm, long long *n)
}
struct ber_element *
ber_add_boolean(struct ber_element *prev, int bool)
ober_add_boolean(struct ber_element *prev, int bool)
{
struct ber_element *elm;
if ((elm = ber_get_element(BER_TYPE_BOOLEAN)) == NULL)
if ((elm = ober_get_element(BER_TYPE_BOOLEAN)) == NULL)
return NULL;
elm->be_numeric = bool ? 0xff : 0;
elm->be_len = 1;
ber_link_elements(prev, elm);
ober_link_elements(prev, elm);
return elm;
}
int
ber_get_boolean(struct ber_element *elm, int *b)
ober_get_boolean(struct ber_element *elm, int *b)
{
if (elm->be_encoding != BER_TYPE_BOOLEAN)
return -1;
@ -254,20 +254,20 @@ ber_get_boolean(struct ber_element *elm, int *b)
}
struct ber_element *
ber_add_string(struct ber_element *prev, const char *string)
ober_add_string(struct ber_element *prev, const char *string)
{
return ber_add_nstring(prev, string, strlen(string));
return ober_add_nstring(prev, string, strlen(string));
}
struct ber_element *
ber_add_nstring(struct ber_element *prev, const char *string0, size_t len)
ober_add_nstring(struct ber_element *prev, const char *string0, size_t len)
{
struct ber_element *elm;
char *string;
if ((string = calloc(1, len + 1)) == NULL)
return NULL;
if ((elm = ber_get_element(BER_TYPE_OCTETSTRING)) == NULL) {
if ((elm = ober_get_element(BER_TYPE_OCTETSTRING)) == NULL) {
free(string);
return NULL;
}
@ -277,19 +277,19 @@ ber_add_nstring(struct ber_element *prev, const char *string0, size_t len)
elm->be_len = len;
elm->be_free = 1; /* free string on cleanup */
ber_link_elements(prev, elm);
ober_link_elements(prev, elm);
return elm;
}
struct ber_element *
ber_add_ostring(struct ber_element *prev, struct ber_octetstring *s)
ober_add_ostring(struct ber_element *prev, struct ber_octetstring *s)
{
return ber_add_nstring(prev, s->ostr_val, s->ostr_len);
return ober_add_nstring(prev, s->ostr_val, s->ostr_len);
}
int
ber_get_string(struct ber_element *elm, char **s)
ober_get_string(struct ber_element *elm, char **s)
{
if (elm->be_encoding != BER_TYPE_OCTETSTRING)
return -1;
@ -304,7 +304,7 @@ ber_get_string(struct ber_element *elm, char **s)
}
int
ber_get_nstring(struct ber_element *elm, void **p, size_t *len)
ober_get_nstring(struct ber_element *elm, void **p, size_t *len)
{
if (elm->be_encoding != BER_TYPE_OCTETSTRING)
return -1;
@ -315,7 +315,7 @@ ber_get_nstring(struct ber_element *elm, void **p, size_t *len)
}
int
ber_get_ostring(struct ber_element *elm, struct ber_octetstring *s)
ober_get_ostring(struct ber_element *elm, struct ber_octetstring *s)
{
if (elm->be_encoding != BER_TYPE_OCTETSTRING)
return -1;
@ -326,14 +326,14 @@ ber_get_ostring(struct ber_element *elm, struct ber_octetstring *s)
}
struct ber_element *
ber_add_bitstring(struct ber_element *prev, const void *v0, size_t len)
ober_add_bitstring(struct ber_element *prev, const void *v0, size_t len)
{
struct ber_element *elm;
void *v;
if ((v = calloc(1, len)) == NULL)
return NULL;
if ((elm = ber_get_element(BER_TYPE_BITSTRING)) == NULL) {
if ((elm = ober_get_element(BER_TYPE_BITSTRING)) == NULL) {
free(v);
return NULL;
}
@ -343,13 +343,13 @@ ber_add_bitstring(struct ber_element *prev, const void *v0, size_t len)
elm->be_len = len;
elm->be_free = 1; /* free string on cleanup */
ber_link_elements(prev, elm);
ober_link_elements(prev, elm);
return elm;
}
int
ber_get_bitstring(struct ber_element *elm, void **v, size_t *len)
ober_get_bitstring(struct ber_element *elm, void **v, size_t *len)
{
if (elm->be_encoding != BER_TYPE_BITSTRING)
return -1;
@ -360,20 +360,20 @@ ber_get_bitstring(struct ber_element *elm, void **v, size_t *len)
}
struct ber_element *
ber_add_null(struct ber_element *prev)
ober_add_null(struct ber_element *prev)
{
struct ber_element *elm;
if ((elm = ber_get_element(BER_TYPE_NULL)) == NULL)
if ((elm = ober_get_element(BER_TYPE_NULL)) == NULL)
return NULL;
ber_link_elements(prev, elm);
ober_link_elements(prev, elm);
return elm;
}
int
ber_get_null(struct ber_element *elm)
ober_get_null(struct ber_element *elm)
{
if (elm->be_encoding != BER_TYPE_NULL)
return -1;
@ -382,20 +382,20 @@ ber_get_null(struct ber_element *elm)
}
struct ber_element *
ber_add_eoc(struct ber_element *prev)
ober_add_eoc(struct ber_element *prev)
{
struct ber_element *elm;
if ((elm = ber_get_element(BER_TYPE_EOC)) == NULL)
if ((elm = ober_get_element(BER_TYPE_EOC)) == NULL)
return NULL;
ber_link_elements(prev, elm);
ober_link_elements(prev, elm);
return elm;
}
int
ber_get_eoc(struct ber_element *elm)
ober_get_eoc(struct ber_element *elm)
{
if (elm->be_encoding != BER_TYPE_EOC)
return -1;
@ -404,7 +404,7 @@ ber_get_eoc(struct ber_element *elm)
}
size_t
ber_oid2ber(struct ber_oid *o, u_int8_t *buf, size_t len)
ober_oid2ber(struct ber_oid *o, u_int8_t *buf, size_t len)
{
u_int32_t v;
u_int i, j = 0, k;
@ -431,7 +431,7 @@ ber_oid2ber(struct ber_oid *o, u_int8_t *buf, size_t len)
}
int
ber_string2oid(const char *oidstr, struct ber_oid *o)
ober_string2oid(const char *oidstr, struct ber_oid *o)
{
char *sp, *p, str[BUFSIZ];
const char *errstr;
@ -453,7 +453,7 @@ ber_string2oid(const char *oidstr, struct ber_oid *o)
}
int
ber_oid_cmp(struct ber_oid *a, struct ber_oid *b)
ober_oid_cmp(struct ber_oid *a, struct ber_oid *b)
{
size_t i;
for (i = 0; i < a->bo_n && i < b->bo_n; i++) {
@ -479,16 +479,16 @@ ber_oid_cmp(struct ber_oid *a, struct ber_oid *b)
}
struct ber_element *
ber_add_oid(struct ber_element *prev, struct ber_oid *o)
ober_add_oid(struct ber_element *prev, struct ber_oid *o)
{
struct ber_element *elm;
u_int8_t *buf;
size_t len;
if ((elm = ber_get_element(BER_TYPE_OBJECT)) == NULL)
if ((elm = ober_get_element(BER_TYPE_OBJECT)) == NULL)
return (NULL);
if ((len = ber_oid2ber(o, NULL, 0)) == 0)
if ((len = ober_oid2ber(o, NULL, 0)) == 0)
goto fail;
if ((buf = calloc(1, len)) == NULL)
@ -498,20 +498,20 @@ ber_add_oid(struct ber_element *prev, struct ber_oid *o)
elm->be_len = len;
elm->be_free = 1;
if (ber_oid2ber(o, buf, len) != len)
if (ober_oid2ber(o, buf, len) != len)
goto fail;
ber_link_elements(prev, elm);
ober_link_elements(prev, elm);
return (elm);
fail:
ber_free_elements(elm);
ober_free_elements(elm);
return (NULL);
}
struct ber_element *
ber_add_noid(struct ber_element *prev, struct ber_oid *o, int n)
ober_add_noid(struct ber_element *prev, struct ber_oid *o, int n)
{
struct ber_oid no;
@ -520,22 +520,22 @@ ber_add_noid(struct ber_element *prev, struct ber_oid *o, int n)
no.bo_n = n;
bcopy(&o->bo_id, &no.bo_id, sizeof(no.bo_id));
return (ber_add_oid(prev, &no));
return (ober_add_oid(prev, &no));
}
struct ber_element *
ber_add_oidstring(struct ber_element *prev, const char *oidstr)
ober_add_oidstring(struct ber_element *prev, const char *oidstr)
{
struct ber_oid o;
if (ber_string2oid(oidstr, &o) == -1)
if (ober_string2oid(oidstr, &o) == -1)
return (NULL);
return (ber_add_oid(prev, &o));
return (ober_add_oid(prev, &o));
}
int
ber_get_oid(struct ber_element *elm, struct ber_oid *o)
ober_get_oid(struct ber_element *elm, struct ber_oid *o)
{
u_int8_t *buf;
size_t len, i = 0, j = 0;
@ -561,7 +561,7 @@ ber_get_oid(struct ber_element *elm, struct ber_oid *o)
}
struct ber_element *
ber_printf_elements(struct ber_element *ber, char *fmt, ...)
ober_printf_elements(struct ber_element *ber, char *fmt, ...)
{
va_list ap;
int d, class;
@ -579,69 +579,69 @@ ber_printf_elements(struct ber_element *ber, char *fmt, ...)
case 'B':
p = va_arg(ap, void *);
len = va_arg(ap, size_t);
if ((ber = ber_add_bitstring(ber, p, len)) == NULL)
if ((ber = ober_add_bitstring(ber, p, len)) == NULL)
goto fail;
break;
case 'b':
d = va_arg(ap, int);
if ((ber = ber_add_boolean(ber, d)) == NULL)
if ((ber = ober_add_boolean(ber, d)) == NULL)
goto fail;
break;
case 'd':
d = va_arg(ap, int);
if ((ber = ber_add_integer(ber, d)) == NULL)
if ((ber = ober_add_integer(ber, d)) == NULL)
goto fail;
break;
case 'e':
e = va_arg(ap, struct ber_element *);
ber_link_elements(ber, e);
ober_link_elements(ber, e);
break;
case 'E':
i = va_arg(ap, long long);
if ((ber = ber_add_enumerated(ber, i)) == NULL)
if ((ber = ober_add_enumerated(ber, i)) == NULL)
goto fail;
break;
case 'i':
i = va_arg(ap, long long);
if ((ber = ber_add_integer(ber, i)) == NULL)
if ((ber = ober_add_integer(ber, i)) == NULL)
goto fail;
break;
case 'O':
o = va_arg(ap, struct ber_oid *);
if ((ber = ber_add_oid(ber, o)) == NULL)
if ((ber = ober_add_oid(ber, o)) == NULL)
goto fail;
break;
case 'o':
s = va_arg(ap, char *);
if ((ber = ber_add_oidstring(ber, s)) == NULL)
if ((ber = ober_add_oidstring(ber, s)) == NULL)
goto fail;
break;
case 's':
s = va_arg(ap, char *);
if ((ber = ber_add_string(ber, s)) == NULL)
if ((ber = ober_add_string(ber, s)) == NULL)
goto fail;
break;
case 't':
class = va_arg(ap, int);
type = va_arg(ap, unsigned int);
ber_set_header(ber, class, type);
ober_set_header(ber, class, type);
break;
case 'x':
s = va_arg(ap, char *);
len = va_arg(ap, size_t);
if ((ber = ber_add_nstring(ber, s, len)) == NULL)
if ((ber = ober_add_nstring(ber, s, len)) == NULL)
goto fail;
break;
case '0':
if ((ber = ber_add_null(ber)) == NULL)
if ((ber = ober_add_null(ber)) == NULL)
goto fail;
break;
case '{':
if ((ber = sub = ber_add_sequence(ber)) == NULL)
if ((ber = sub = ober_add_sequence(ber)) == NULL)
goto fail;
break;
case '(':
if ((ber = sub = ber_add_set(ber)) == NULL)
if ((ber = sub = ober_add_set(ber)) == NULL)
goto fail;
break;
case '}':
@ -649,7 +649,7 @@ ber_printf_elements(struct ber_element *ber, char *fmt, ...)
ber = sub;
break;
case '.':
if ((e = ber_add_eoc(ber)) == NULL)
if ((e = ober_add_eoc(ber)) == NULL)
goto fail;
ber = e;
break;
@ -661,12 +661,12 @@ ber_printf_elements(struct ber_element *ber, char *fmt, ...)
return (ber);
fail:
ber_free_elements(ber);
ober_free_elements(ber);
return (NULL);
}
int
ber_scanf_elements(struct ber_element *ber, char *fmt, ...)
ober_scanf_elements(struct ber_element *ber, char *fmt, ...)
{
#define _MAX_SEQ 128
va_list ap;
@ -690,19 +690,19 @@ ber_scanf_elements(struct ber_element *ber, char *fmt, ...)
case 'B':
ptr = va_arg(ap, void **);
len = va_arg(ap, size_t *);
if (ber_get_bitstring(ber, ptr, len) == -1)
if (ober_get_bitstring(ber, ptr, len) == -1)
goto fail;
ret++;
break;
case 'b':
d = va_arg(ap, int *);
if (ber_get_boolean(ber, d) == -1)
if (ober_get_boolean(ber, d) == -1)
goto fail;
ret++;
break;
case 'd':
d = va_arg(ap, int *);
if (ber_get_integer(ber, &l) == -1)
if (ober_get_integer(ber, &l) == -1)
goto fail;
*d = l;
ret++;
@ -714,19 +714,19 @@ ber_scanf_elements(struct ber_element *ber, char *fmt, ...)
continue;
case 'E':
i = va_arg(ap, long long *);
if (ber_get_enumerated(ber, i) == -1)
if (ober_get_enumerated(ber, i) == -1)
goto fail;
ret++;
break;
case 'i':
i = va_arg(ap, long long *);
if (ber_get_integer(ber, i) == -1)
if (ober_get_integer(ber, i) == -1)
goto fail;
ret++;
break;
case 'o':
o = va_arg(ap, struct ber_oid *);
if (ber_get_oid(ber, o) == -1)
if (ober_get_oid(ber, o) == -1)
goto fail;
ret++;
break;
@ -735,7 +735,7 @@ ber_scanf_elements(struct ber_element *ber, char *fmt, ...)
break;
case 's':
s = va_arg(ap, char **);
if (ber_get_string(ber, s) == -1)
if (ober_get_string(ber, s) == -1)
goto fail;
ret++;
break;
@ -749,7 +749,7 @@ ber_scanf_elements(struct ber_element *ber, char *fmt, ...)
case 'x':
ptr = va_arg(ap, void **);
len = va_arg(ap, size_t *);
if (ber_get_nstring(ber, ptr, len) == -1)
if (ober_get_nstring(ber, ptr, len) == -1)
goto fail;
ret++;
break;
@ -765,7 +765,7 @@ ber_scanf_elements(struct ber_element *ber, char *fmt, ...)
break;
case 'p':
pos = va_arg(ap, off_t *);
*pos = ber_getpos(ber);
*pos = ober_getpos(ber);
ret++;
continue;
case '{':
@ -802,7 +802,7 @@ ber_scanf_elements(struct ber_element *ber, char *fmt, ...)
}
ssize_t
ber_get_writebuf(struct ber *b, void **buf)
ober_get_writebuf(struct ber *b, void **buf)
{
if (b->br_wbuf == NULL)
return -1;
@ -822,12 +822,12 @@ ber_get_writebuf(struct ber *b, void **buf)
* -1 on failure and sets errno
*/
ssize_t
ber_write_elements(struct ber *ber, struct ber_element *root)
ober_write_elements(struct ber *ber, struct ber_element *root)
{
size_t len;
/* calculate length because only the definite form is required */
len = ber_calc_len(root);
len = ober_calc_len(root);
DPRINTF("write ber element of %zd bytes length\n", len);
if (ber->br_wbuf != NULL && ber->br_wbuf + len > ber->br_wend) {
@ -843,14 +843,14 @@ ber_write_elements(struct ber *ber, struct ber_element *root)
/* reset write pointer */
ber->br_wptr = ber->br_wbuf;
if (ber_dump_element(ber, root) == -1)
if (ober_dump_element(ber, root) == -1)
return -1;
return (len);
}
void
ber_set_readbuf(struct ber *b, void *buf, size_t len)
ober_set_readbuf(struct ber *b, void *buf, size_t len)
{
b->br_rbuf = b->br_rptr = buf;
b->br_rend = (u_int8_t *)buf + len;
@ -870,21 +870,21 @@ ber_set_readbuf(struct ber *b, void *buf, size_t len)
* NULL, type mismatch or read error
*/
struct ber_element *
ber_read_elements(struct ber *ber, struct ber_element *elm)
ober_read_elements(struct ber *ber, struct ber_element *elm)
{
struct ber_element *root = elm;
if (root == NULL) {
if ((root = ber_get_element(0)) == NULL)
if ((root = ober_get_element(0)) == NULL)
return NULL;
}
DPRINTF("read ber elements, root %p\n", root);
if (ber_read_element(ber, root) == -1) {
if (ober_read_element(ber, root) == -1) {
/* Cleanup if root was allocated by us */
if (elm == NULL)
ber_free_elements(root);
ober_free_elements(root);
return NULL;
}
@ -892,17 +892,17 @@ ber_read_elements(struct ber *ber, struct ber_element *elm)
}
off_t
ber_getpos(struct ber_element *elm)
ober_getpos(struct ber_element *elm)
{
return elm->be_offs;
}
void
ber_free_element(struct ber_element *root)
ober_free_element(struct ber_element *root)
{
if (root->be_sub && (root->be_encoding == BER_TYPE_SEQUENCE ||
root->be_encoding == BER_TYPE_SET))
ber_free_elements(root->be_sub);
ober_free_elements(root->be_sub);
if (root->be_free && (root->be_encoding == BER_TYPE_OCTETSTRING ||
root->be_encoding == BER_TYPE_BITSTRING ||
root->be_encoding == BER_TYPE_OBJECT))
@ -911,15 +911,15 @@ ber_free_element(struct ber_element *root)
}
void
ber_free_elements(struct ber_element *root)
ober_free_elements(struct ber_element *root)
{
if (root == NULL)
return;
if (root->be_sub && (root->be_encoding == BER_TYPE_SEQUENCE ||
root->be_encoding == BER_TYPE_SET))
ber_free_elements(root->be_sub);
ober_free_elements(root->be_sub);
if (root->be_next)
ber_free_elements(root->be_next);
ober_free_elements(root->be_next);
if (root->be_free && (root->be_encoding == BER_TYPE_OCTETSTRING ||
root->be_encoding == BER_TYPE_BITSTRING ||
root->be_encoding == BER_TYPE_OBJECT))
@ -928,7 +928,7 @@ ber_free_elements(struct ber_element *root)
}
size_t
ber_calc_len(struct ber_element *root)
ober_calc_len(struct ber_element *root)
{
unsigned int t;
size_t s;
@ -937,7 +937,7 @@ ber_calc_len(struct ber_element *root)
/* calculate the real length of a sequence or set */
if (root->be_sub && (root->be_encoding == BER_TYPE_SEQUENCE ||
root->be_encoding == BER_TYPE_SET))
root->be_len = ber_calc_len(root->be_sub);
root->be_len = ober_calc_len(root->be_sub);
/* fix header length for extended types */
if (root->be_type > BER_TYPE_SINGLE_MAX)
@ -949,7 +949,7 @@ ber_calc_len(struct ber_element *root)
/* calculate the length of the following elements */
if (root->be_next)
size += ber_calc_len(root->be_next);
size += ober_calc_len(root->be_next);
/* This is an empty element, do not use a minimal size */
if (root->be_class == BER_CLASS_UNIVERSAL &&
@ -960,13 +960,13 @@ ber_calc_len(struct ber_element *root)
}
void
ber_set_application(struct ber *b, unsigned int (*cb)(struct ber_element *))
ober_set_application(struct ber *b, unsigned int (*cb)(struct ber_element *))
{
b->br_application = cb;
}
void
ber_set_writecallback(struct ber_element *elm, void (*cb)(void *, size_t),
ober_set_writecallback(struct ber_element *elm, void (*cb)(void *, size_t),
void *arg)
{
elm->be_cb = cb;
@ -974,7 +974,7 @@ ber_set_writecallback(struct ber_element *elm, void (*cb)(void *, size_t),
}
void
ber_free(struct ber *b)
ober_free(struct ber *b)
{
free(b->br_wbuf);
}
@ -984,13 +984,13 @@ ber_free(struct ber *b)
*/
static int
ber_dump_element(struct ber *ber, struct ber_element *root)
ober_dump_element(struct ber *ber, struct ber_element *root)
{
unsigned long long l;
int i;
uint8_t u;
ber_dump_header(ber, root);
ober_dump_header(ber, root);
if (root->be_cb)
root->be_cb(root->be_cbarg, ber->br_wptr - ber->br_wbuf);
@ -1001,31 +1001,31 @@ ber_dump_element(struct ber *ber, struct ber_element *root)
l = (unsigned long long)root->be_numeric;
for (i = root->be_len; i > 0; i--) {
u = (l >> ((i - 1) * 8)) & 0xff;
ber_putc(ber, u);
ober_putc(ber, u);
}
break;
case BER_TYPE_BITSTRING:
case BER_TYPE_OCTETSTRING:
case BER_TYPE_OBJECT:
ber_write(ber, root->be_val, root->be_len);
ober_write(ber, root->be_val, root->be_len);
break;
case BER_TYPE_NULL: /* no payload */
case BER_TYPE_EOC:
break;
case BER_TYPE_SEQUENCE:
case BER_TYPE_SET:
if (root->be_sub && ber_dump_element(ber, root->be_sub) == -1)
if (root->be_sub && ober_dump_element(ber, root->be_sub) == -1)
return -1;
break;
}
if (root->be_next == NULL)
return 0;
return ber_dump_element(ber, root->be_next);
return ober_dump_element(ber, root->be_next);
}
static void
ber_dump_header(struct ber *ber, struct ber_element *root)
ober_dump_header(struct ber *ber, struct ber_element *root)
{
u_char id = 0, t, buf[5];
unsigned int type;
@ -1039,14 +1039,14 @@ ber_dump_header(struct ber *ber, struct ber_element *root)
root->be_encoding == BER_TYPE_SET)
id |= BER_TYPE_CONSTRUCTED;
ber_putc(ber, id);
ober_putc(ber, id);
} else {
id = BER_TAG_MASK | (root->be_class << BER_CLASS_SHIFT);
if (root->be_encoding == BER_TYPE_SEQUENCE ||
root->be_encoding == BER_TYPE_SET)
id |= BER_TYPE_CONSTRUCTED;
ber_putc(ber, id);
ober_putc(ber, id);
for (t = 0, type = root->be_type; type > 0; type >>= 7)
buf[t++] = type & ~BER_TAG_MORE;
@ -1054,26 +1054,26 @@ ber_dump_header(struct ber *ber, struct ber_element *root)
while (t-- > 0) {
if (t > 0)
buf[t] |= BER_TAG_MORE;
ber_putc(ber, buf[t]);
ober_putc(ber, buf[t]);
}
}
if (root->be_len < BER_TAG_MORE) {
/* short form */
ber_putc(ber, root->be_len);
ober_putc(ber, root->be_len);
} else {
for (t = 0, size = root->be_len; size > 0; size >>= 8)
buf[t++] = size & 0xff;
ber_putc(ber, t | BER_TAG_MORE);
ober_putc(ber, t | BER_TAG_MORE);
while (t > 0)
ber_putc(ber, buf[--t]);
ober_putc(ber, buf[--t]);
}
}
static void
ber_putc(struct ber *ber, u_char c)
ober_putc(struct ber *ber, u_char c)
{
if (ber->br_wptr + 1 <= ber->br_wend)
*ber->br_wptr = c;
@ -1081,7 +1081,7 @@ ber_putc(struct ber *ber, u_char c)
}
static void
ber_write(struct ber *ber, void *buf, size_t len)
ober_write(struct ber *ber, void *buf, size_t len)
{
if (ber->br_wptr + len <= ber->br_wend)
bcopy(buf, ber->br_wptr, len);
@ -1098,7 +1098,7 @@ get_id(struct ber *b, unsigned int *tag, int *class, int *cstruct)
size_t i = 0;
unsigned int t = 0;
if (ber_getc(b, &u) == -1)
if (ober_getc(b, &u) == -1)
return -1;
*class = (u >> BER_CLASS_SHIFT) & BER_CLASS_MASK;
@ -1110,7 +1110,7 @@ get_id(struct ber *b, unsigned int *tag, int *class, int *cstruct)
}
do {
if (ber_getc(b, &u) == -1)
if (ober_getc(b, &u) == -1)
return -1;
/* enforce minimal number of octets for tag > 30 */
@ -1140,7 +1140,7 @@ get_len(struct ber *b, ssize_t *len)
u_char u, n;
ssize_t s, r;
if (ber_getc(b, &u) == -1)
if (ober_getc(b, &u) == -1)
return -1;
if ((u & BER_TAG_MORE) == 0) {
/* short form */
@ -1171,7 +1171,7 @@ get_len(struct ber *b, ssize_t *len)
r = n + 1;
for (s = 0; n > 0; n--) {
if (ber_getc(b, &u) == -1)
if (ober_getc(b, &u) == -1)
return -1;
s = (s << 8) | u;
}
@ -1187,7 +1187,7 @@ get_len(struct ber *b, ssize_t *len)
}
static ssize_t
ber_read_element(struct ber *ber, struct ber_element *elm)
ober_read_element(struct ber *ber, struct ber_element *elm)
{
long long val = 0;
struct ber_element *next;
@ -1261,7 +1261,7 @@ ber_read_element(struct ber *ber, struct ber_element *elm)
if (len > (ssize_t)sizeof(long long))
return -1;
for (i = 0; i < len; i++) {
if (ber_getc(ber, &c) != 1)
if (ober_getc(ber, &c) != 1)
return -1;
/* smallest number of contents octets only */
@ -1286,7 +1286,7 @@ ber_read_element(struct ber *ber, struct ber_element *elm)
return -1;
elm->be_free = 1;
elm->be_len = len;
ber_read(ber, elm->be_val, len);
ober_read(ber, elm->be_val, len);
break;
case BER_TYPE_OCTETSTRING:
case BER_TYPE_OBJECT:
@ -1295,7 +1295,7 @@ ber_read_element(struct ber *ber, struct ber_element *elm)
return -1;
elm->be_free = 1;
elm->be_len = len;
ber_read(ber, elm->be_val, len);
ober_read(ber, elm->be_val, len);
((u_char *)elm->be_val)[len] = '\0';
break;
case BER_TYPE_NULL: /* no payload */
@ -1305,26 +1305,26 @@ ber_read_element(struct ber *ber, struct ber_element *elm)
case BER_TYPE_SEQUENCE:
case BER_TYPE_SET:
if (elm->be_sub == NULL) {
if ((elm->be_sub = ber_get_element(0)) == NULL)
if ((elm->be_sub = ober_get_element(0)) == NULL)
return -1;
}
next = elm->be_sub;
while (len > 0) {
/*
* Prevent stack overflow from excessive recursion
* depth in ber_free_elements().
* depth in ober_free_elements().
*/
if (elements >= BER_MAX_SEQ_ELEMENTS) {
errno = ERANGE;
return -1;
}
r = ber_read_element(ber, next);
r = ober_read_element(ber, next);
if (r == -1)
return -1;
elements++;
len -= r;
if (len > 0 && next->be_next == NULL) {
if ((next->be_next = ber_get_element(0)) ==
if ((next->be_next = ober_get_element(0)) ==
NULL)
return -1;
}
@ -1336,13 +1336,13 @@ ber_read_element(struct ber *ber, struct ber_element *elm)
}
static ssize_t
ber_getc(struct ber *b, u_char *c)
ober_getc(struct ber *b, u_char *c)
{
return ber_read(b, c, 1);
return ober_read(b, c, 1);
}
static ssize_t
ber_read(struct ber *ber, void *buf, size_t len)
ober_read(struct ber *ber, void *buf, size_t len)
{
size_t sz;


+ 46
- 46
src/lib/libutil/ber.h View File

@ -1,4 +1,4 @@
/* $OpenBSD: ber.h,v 1.1 2019/05/11 17:46:02 rob Exp $ */
/* $OpenBSD: ber.h,v 1.1.2.1 2019/10/27 20:05:12 tb Exp $ */
/*
* Copyright (c) 2007, 2012 Reyk Floeter <reyk@openbsd.org>
@ -90,62 +90,62 @@ struct ber_oid {
};
__BEGIN_DECLS
struct ber_element *ber_get_element(unsigned int);
void ber_set_header(struct ber_element *, int,
struct ber_element *ober_get_element(unsigned int);
void ober_set_header(struct ber_element *, int,
unsigned int);
void ber_link_elements(struct ber_element *,
void ober_link_elements(struct ber_element *,
struct ber_element *);
struct ber_element *ber_unlink_elements(struct ber_element *);
void ber_replace_elements(struct ber_element *,
struct ber_element *ober_unlink_elements(struct ber_element *);
void ober_replace_elements(struct ber_element *,
struct ber_element *);
struct ber_element *ber_add_sequence(struct ber_element *);
struct ber_element *ber_add_set(struct ber_element *);
struct ber_element *ber_add_integer(struct ber_element *, long long);
int ber_get_integer(struct ber_element *, long long *);
struct ber_element *ber_add_enumerated(struct ber_element *, long long);
int ber_get_enumerated(struct ber_element *, long long *);
struct ber_element *ber_add_boolean(struct ber_element *, int);
int ber_get_boolean(struct ber_element *, int *);
struct ber_element *ber_add_string(struct ber_element *, const char *);
struct ber_element *ber_add_nstring(struct ber_element *, const char *,
struct ber_element *ober_add_sequence(struct ber_element *);
struct ber_element *ober_add_set(struct ber_element *);
struct ber_element *ober_add_integer(struct ber_element *, long long);
int ober_get_integer(struct ber_element *, long long *);
struct ber_element *ober_add_enumerated(struct ber_element *, long long);
int ober_get_enumerated(struct ber_element *, long long *);
struct ber_element *ober_add_boolean(struct ber_element *, int);
int ober_get_boolean(struct ber_element *, int *);
struct ber_element *ober_add_string(struct ber_element *, const char *);
struct ber_element *ober_add_nstring(struct ber_element *, const char *,
size_t);
struct ber_element *ber_add_ostring(struct ber_element *,
struct ber_element *ober_add_ostring(struct ber_element *,
struct ber_octetstring *);
int ber_get_string(struct ber_element *, char **);
int ber_get_nstring(struct ber_element *, void **,
int ober_get_string(struct ber_element *, char **);
int ober_get_nstring(struct ber_element *, void **,
size_t *);
int ber_get_ostring(struct ber_element *,
int ober_get_ostring(struct ber_element *,
struct ber_octetstring *);
struct ber_element *ber_add_bitstring(struct ber_element *, const void *,
struct ber_element *ober_add_bitstring(struct ber_element *, const void *,
size_t);
int ber_get_bitstring(struct ber_element *, void **,
int ober_get_bitstring(struct ber_element *, void **,
size_t *);
struct ber_element *ber_add_null(struct ber_element *);
int ber_get_null(struct ber_element *);
struct ber_element *ber_add_eoc(struct ber_element *);
int ber_get_eoc(struct ber_element *);
struct ber_element *ber_add_oid(struct ber_element *, struct ber_oid *);
struct ber_element *ber_add_noid(struct ber_element *, struct ber_oid *, int);
struct ber_element *ber_add_oidstring(struct ber_element *, const char *);
int ber_get_oid(struct ber_element *, struct ber_oid *);
size_t ber_oid2ber(struct ber_oid *, u_int8_t *, size_t);
int ber_string2oid(const char *, struct ber_oid *);
struct ber_element *ber_printf_elements(struct ber_element *, char *, ...);
int ber_scanf_elements(struct ber_element *, char *, ...);
ssize_t ber_get_writebuf(struct ber *, void **);
ssize_t ber_write_elements(struct ber *, struct ber_element *);
void ber_set_readbuf(struct ber *, void *, size_t);
struct ber_element *ber_read_elements(struct ber *, struct ber_element *);
off_t ber_getpos(struct ber_element *);
void ber_free_element(struct ber_element *);
void ber_free_elements(struct ber_element *);
size_t ber_calc_len(struct ber_element *);
void ber_set_application(struct ber *,
struct ber_element *ober_add_null(struct ber_element *);
int ober_get_null(struct ber_element *);
struct ber_element *ober_add_eoc(struct ber_element *);
int ober_get_eoc(struct ber_element *);
struct ber_element *ober_add_oid(struct ber_element *, struct ber_oid *);
struct ber_element *ober_add_noid(struct ber_element *, struct ber_oid *, int);
struct ber_element *ober_add_oidstring(struct ber_element *, const char *);
int ober_get_oid(struct ber_element *, struct ber_oid *);
size_t ober_oid2ber(struct ber_oid *, u_int8_t *, size_t);
int ober_string2oid(const char *, struct ber_oid *);
struct ber_element *ober_printf_elements(struct ber_element *, char *, ...);
int ober_scanf_elements(struct ber_element *, char *, ...);
ssize_t ober_get_writebuf(struct ber *, void **);
ssize_t ober_write_elements(struct ber *, struct ber_element *);
void ober_set_readbuf(struct ber *, void *, size_t);
struct ber_element *ober_read_elements(struct ber *, struct ber_element *);
off_t ober_getpos(struct ber_element *);
void ober_free_element(struct ber_element *);
void ober_free_elements(struct ber_element *);
size_t ober_calc_len(struct ber_element *);
void ober_set_application(struct ber *,
unsigned int (*)(struct ber_element *));
void ber_set_writecallback(struct ber_element *,
void ober_set_writecallback(struct ber_element *,
void (*)(void *, size_t), void *);
void ber_free(struct ber *);
int ber_oid_cmp(struct ber_oid *, struct ber_oid *);
void ober_free(struct ber *);
int ober_oid_cmp(struct ber_oid *, struct ber_oid *);
__END_DECLS


+ 62
- 62
src/lib/libutil/ber_add_string.3 View File

@ -1,4 +1,4 @@
.\" $OpenBSD: ber_add_string.3,v 1.3 2019/05/21 12:30:07 rob Exp $
.\" $OpenBSD: ber_add_string.3,v 1.3.2.1 2019/10/27 20:05:12 tb Exp $
.\"
.\" Copyright (c) 2007, 2012 Reyk Floeter <reyk@openbsd.org>
.\"
@ -14,69 +14,69 @@
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
.Dd $Mdocdate: May 21 2019 $
.Dt BER_ADD_STRING 3
.Dd $Mdocdate: October 27 2019 $
.Dt OBER_ADD_STRING 3
.Os
.Sh NAME
.Nm ber_get_element ,
.Nm ber_add_sequence ,
.Nm ber_add_set ,
.Nm ber_add_null ,
.Nm ber_add_eoc ,
.Nm ber_add_integer ,
.Nm ber_add_enumerated ,
.Nm ber_add_boolean ,
.Nm ber_add_string ,
.Nm ber_add_nstring ,
.Nm ber_add_ostring ,
.Nm ber_add_bitstring ,
.Nm ber_add_oid ,
.Nm ber_add_noid ,
.Nm ber_add_oidstring ,
.Nm ber_printf_elements
.Nm ober_get_element ,
.Nm ober_add_sequence ,
.Nm ober_add_set ,
.Nm ober_add_null ,
.Nm ober_add_eoc ,
.Nm ober_add_integer ,
.Nm ober_add_enumerated ,
.Nm ober_add_boolean ,
.Nm ober_add_string ,
.Nm ober_add_nstring ,
.Nm ober_add_ostring ,
.Nm ober_add_bitstring ,
.Nm ober_add_oid ,
.Nm ober_add_noid ,
.Nm ober_add_oidstring ,
.Nm ober_printf_elements
.Nd create ASN.1 objects for BER encoding
.Sh SYNOPSIS
.In sys/types.h
.In ber.h
.Ft "struct ber_element *"
.Fn "ber_get_element" "unsigned int encoding"
.Fn "ober_get_element" "unsigned int encoding"
.Ft "struct ber_element *"
.Fn "ber_add_sequence" "struct ber_element *prev"
.Fn "ober_add_sequence" "struct ber_element *prev"
.Ft "struct ber_element *"
.Fn "ber_add_set" "struct ber_element *prev"
.Fn "ober_add_set" "struct ber_element *prev"
.Ft "struct ber_element *"
.Fn "ber_add_null" "struct ber_element *prev"
.Fn "ober_add_null" "struct ber_element *prev"
.Ft "struct ber_element *"
.Fn "ber_add_eoc" "struct ber_element *prev"
.Fn "ober_add_eoc" "struct ber_element *prev"
.Ft "struct ber_element *"
.Fn "ber_add_integer" "struct ber_element *prev" "long long val"
.Fn "ober_add_integer" "struct ber_element *prev" "long long val"
.Ft "struct ber_element *"
.Fn "ber_add_enumerated" "struct ber_element *prev" "long long val"
.Fn "ober_add_enumerated" "struct ber_element *prev" "long long val"
.Ft "struct ber_element *"
.Fn "ber_add_boolean" "struct ber_element *prev" "int bool"
.Fn "ober_add_boolean" "struct ber_element *prev" "int bool"
.Ft "struct ber_element *"
.Fn "ber_add_string" "struct ber_element *prev" "const char *string"
.Fn "ober_add_string" "struct ber_element *prev" "const char *string"
.Ft "struct ber_element *"
.Fn "ber_add_nstring" "struct ber_element *prev" "const char *string" "size_t size"
.Fn "ober_add_nstring" "struct ber_element *prev" "const char *string" "size_t size"
.Ft "struct ber_element *"
.Fo "ber_add_ostring"
.Fo "ober_add_ostring"
.Fa "struct ber_element *prev"
.Fa "struct ber_octetstring *ostring"
.Fc
.Ft "struct ber_element *"
.Fo "ber_add_bitstring"
.Fo "ober_add_bitstring"
.Fa "struct ber_element *prev"
.Fa "const void *buf"
.Fa "size_t size"
.Fc
.Ft "struct ber_element *"
.Fn "ber_add_oid" "struct ber_element *prev" "struct ber_oid *oid"
.Fn "ober_add_oid" "struct ber_element *prev" "struct ber_oid *oid"
.Ft "struct ber_element *"
.Fn "ber_add_noid" "struct ber_element *prev" "struct ber_oid *oid" "int n"
.Fn "ober_add_noid" "struct ber_element *prev" "struct ber_oid *oid" "int n"
.Ft "struct ber_element *"
.Fn "ber_add_oidstring" "struct ber_element *prev" "const char *string"
.Fn "ober_add_oidstring" "struct ber_element *prev" "const char *string"
.Ft "struct ber_element *"
.Fn "ber_printf_elements" "struct ber_element *prev" "char *format" "..."
.Fn "ober_printf_elements" "struct ber_element *prev" "char *format" "..."
.Sh DESCRIPTION
Intermediary storage of BER elements during encoding and decoding uses the
following structure:
@ -102,7 +102,7 @@ struct ber_element {
};
.Ed
.Pp
.Fn ber_get_element
.Fn ober_get_element
creates a new
.Vt ber_element
with default values, dynamically allocates required storage, and sets
@ -111,7 +111,7 @@ to
.Fa encoding .
.Pp
The
.Fn ber_add_*
.Fn ober_add_*
functions allocate a new
.Vt ber_element
of the respective type.
@ -128,7 +128,7 @@ they put it behind
Those functions taking a second argument initialize the content
of the new element from the second argument.
.Pp
.Fn ber_printf_elements
.Fn ober_printf_elements
creates zero or more
.Vt ber_element
structures.
@ -139,25 +139,25 @@ and passed to the listed function, creating one
.Vt ber_element
per byte.
The following bytes are valid:
.Bl -column -offset indent byte ber_add_enumerated "struct ber_element *"
.Bl -column -offset indent byte ober_add_enumerated "struct ber_element *"
.It Sy byte Ta Sy function Ta Sy arguments
.It B Ta Fn ber_add_bitstring Ta 2: Vt void * , size_t
.It b Ta Fn ber_add_boolean Ta 1: Vt int
.It d Ta Fn ber_add_integer Ta 1: Vt int
.It E Ta Fn ber_add_enumerated Ta 1: Vt long long
.It e Ta see below Ta 1: Vt struct ber_element *
.It i Ta Fn ber_add_integer Ta 1: Vt long long
.It O Ta Fn ber_add_oid Ta 1: Vt struct ber_oid *
.It o Ta Fn ber_add_oidstring Ta 1: Vt char *
.It s Ta Fn ber_add_string Ta 1: Vt char *
.It t Ta Xr ber_set_header 3 Ta 2: Vt int , unsigned int
.It x Ta Fn ber_add_nstring Ta 2: Vt char * , size_t
.It \&( Ta Fn ber_add_set Ta 0
.It \&) Ta see below Ta 0
.It \&. Ta Fn ber_add_eoc Ta 0
.It 0 Ta Fn ber_add_null Ta 0
.It { Ta Fn ber_add_sequence Ta 0
.It } Ta see below Ta 0
.It B Ta Fn ober_add_bitstring Ta 2: Vt void * , size_t
.It b Ta Fn ober_add_boolean Ta 1: Vt int
.It d Ta Fn ober_add_integer Ta 1: Vt int
.It E Ta Fn ober_add_enumerated Ta 1: Vt long long
.It e Ta see below Ta 1: Vt struct ber_element *
.It i Ta Fn ober_add_integer Ta 1: Vt long long
.It O Ta Fn ober_add_oid Ta 1: Vt struct ber_oid *
.It o Ta Fn ober_add_oidstring Ta 1: Vt char *
.It s Ta Fn ober_add_string Ta 1: Vt char *
.It t Ta Xr ober_set_header 3 Ta 2: Vt int , unsigned int
.It x Ta Fn ober_add_nstring Ta 2: Vt char * , size_t
.It \&( Ta Fn ober_add_set Ta 0
.It \&) Ta see below Ta 0
.It \&. Ta Fn ober_add_eoc Ta 0
.It 0 Ta Fn ober_add_null Ta 0
.It { Ta Fn ober_add_sequence Ta 0
.It } Ta see below Ta 0
.El
.Pp
The
@ -175,7 +175,7 @@ if the
is the first byte in
.Fa fmt ,
just like the
.Fn ber_add_*
.Fn ober_add_*
functions would add a new element.
The
.Sq t
@ -202,7 +202,7 @@ is returned and the global variable
.Va errno
is set to indicate the error.
.Pp
.Fn ber_printf_elements
.Fn ober_printf_elements
returns
.Dv NULL
without setting
@ -214,10 +214,10 @@ is an empty string and
is
.Dv NULL .
.Sh SEE ALSO
.Xr ber_get_string 3 ,
.Xr ber_oid_cmp 3 ,
.Xr ber_read_elements 3 ,
.Xr ber_set_header 3
.Xr ober_get_string 3 ,
.Xr ober_oid_cmp 3 ,
.Xr ober_read_elements 3 ,
.Xr ober_set_header 3
.Sh STANDARDS
ITU-T Recommendation X.690, also known as ISO/IEC 8825-1:
Information technology - ASN.1 encoding rules.


+ 49
- 49
src/lib/libutil/ber_get_string.3 View File

@ -1,4 +1,4 @@
.\" $OpenBSD: ber_get_string.3,v 1.7 2019/08/14 17:36:04 jmc Exp $
.\" $OpenBSD: ber_get_string.3,v 1.7.2.1 2019/10/27 20:05:12 tb Exp $
.\"
.\" Copyright (c) 2007, 2012 Reyk Floeter <reyk@openbsd.org>
.\"
@ -14,62 +14,62 @@
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
.Dd $Mdocdate: August 14 2019 $
.Dt BER_GET_STRING 3
.Dd $Mdocdate: October 27 2019 $
.Dt OBER_GET_STRING 3
.Os
.Sh NAME
.Nm ber_get_null ,
.Nm ber_get_eoc ,
.Nm ber_get_integer ,
.Nm ber_get_enumerated ,
.Nm ber_get_boolean ,
.Nm ber_get_string ,
.Nm ber_get_nstring ,
.Nm ber_get_ostring ,
.Nm ber_get_bitstring ,
.Nm ber_get_oid ,
.Nm ber_getpos ,
.Nm ber_scanf_elements
.Nm ober_get_null ,
.Nm ober_get_eoc ,
.Nm ober_get_integer ,
.Nm ober_get_enumerated ,
.Nm ober_get_boolean ,
.Nm ober_get_string ,
.Nm ober_get_nstring ,
.Nm ober_get_ostring ,
.Nm ober_get_bitstring ,
.Nm ober_get_oid ,
.Nm ober_getpos ,
.Nm ober_scanf_elements
.Nd access properties of ASN.1 objects decoded from BER
.Sh SYNOPSIS
.In sys/types.h
.In ber.h
.Ft "int"
.Fn "ber_get_null" "struct ber_element *root"
.Fn "ober_get_null" "struct ber_element *root"
.Ft "int"
.Fn "ber_get_eoc" "struct ber_element *root"
.Fn "ober_get_eoc" "struct ber_element *root"
.Ft "int"
.Fn "ber_get_integer" "struct ber_element *root" "long long *val"
.Fn "ober_get_integer" "struct ber_element *root" "long long *val"
.Ft "int"
.Fn "ber_get_enumerated" "struct ber_element *root" "long long *val"
.Fn "ober_get_enumerated" "struct ber_element *root" "long long *val"
.Ft "int"
.Fn "ber_get_boolean" "struct ber_element *root" "int *bool"
.Fn "ober_get_boolean" "struct ber_element *root" "int *bool"
.Ft "int"
.Fn "ber_get_string" "struct ber_element *root" "char **charbuf"
.Fn "ober_get_string" "struct ber_element *root" "char **charbuf"
.Ft "int"
.Fn "ber_get_nstring" "struct ber_element *root" "void **buf" "size_t *size"
.Fn "ober_get_nstring" "struct ber_element *root" "void **buf" "size_t *size"
.Ft "int"
.Fn "ber_get_ostring" "struct ber_element *root" "struct ber_octetstring *ostring"
.Fn "ober_get_ostring" "struct ber_element *root" "struct ber_octetstring *ostring"
.Ft "int"
.Fn "ber_get_bitstring" "struct ber_element *root" "void **buf" "size_t *size"
.Fn "ober_get_bitstring" "struct ber_element *root" "void **buf" "size_t *size"
.Ft "int"
.Fn "ber_get_oid" "struct ber_element *root" "struct ber_oid *oid"
.Fn "ober_get_oid" "struct ber_element *root" "struct ber_oid *oid"
.Ft off_t
.Fn "ber_getpos" "struct ber_element *elm"
.Fn "ober_getpos" "struct ber_element *elm"
.Ft "int"
.Fn "ber_scanf_elements" "struct ber_element *root" "char *format" "..."
.Fn "ober_scanf_elements" "struct ber_element *root" "char *format" "..."
.Sh DESCRIPTION
Functions which take two arguments save the value contained in the
.Fa root
element into the storage location pointed to by the second argument.
Additionally,
.Fn ber_get_nstring
.Fn ober_get_nstring
and
.Fn ber_get_bitstring
.Fn ober_get_bitstring
save the number of bytes contained in the string into
.Pf * Fa size .
.Pp
.Fn ber_scanf_elements
.Fn ober_scanf_elements
retrieves the values from zero or more elements starting at
.Fa root .
For each byte in
@ -79,24 +79,24 @@ and passed to the function listed, processing one
.Vt ber_element
per byte.
The following bytes are valid:
.Bl -column -offset indent bytes ber_get_enumerated() "1: struct ber_element **"
.Bl -column -offset indent bytes ober_get_enumerated() "1: struct ber_element **"
.It Sy byte Ta Sy function Ta Sy arguments
.It B Ta Fn ber_get_bitstring Ta 2: Vt void ** , size_t *
.It b Ta Fn ber_get_boolean Ta 1: Vt int *
.It d Ta Fn ber_get_integer Ta 1: Vt int *
.It E Ta Fn ber_get_enumerated Ta 1: Vt long long *
.It B Ta Fn ober_get_bitstring Ta 2: Vt void ** , size_t *
.It b Ta Fn ober_get_boolean Ta 1: Vt int *
.It d Ta Fn ober_get_integer Ta 1: Vt int *
.It E Ta Fn ober_get_enumerated Ta 1: Vt long long *
.It e Ta see below Ta 1: Vt struct ber_element **
.It i Ta Fn ber_get_integer Ta 1: Vt long long *
.It o Ta Fn ber_get_oid Ta 1: Vt struct ber_oid *
.It p Ta Fn ber_getpos Ta 1: Vt off_t *
.It i Ta Fn ober_get_integer Ta 1: Vt long long *
.It o Ta Fn ober_get_oid Ta 1: Vt struct ber_oid *
.It p Ta Fn ober_getpos Ta 1: Vt off_t *
.It S Ta see below Ta 0
.It s Ta Fn ber_get_string Ta 1: Vt char **
.It s Ta Fn ober_get_string Ta 1: Vt char **
.It t Ta see below Ta 2: Vt int * , unsigned int *
.It x Ta Fn ber_get_nstring Ta 2: Vt void **, size_t *
.It x Ta Fn ober_get_nstring Ta 2: Vt void **, size_t *
.It \&( or { Ta see below Ta 0
.It \&) or } Ta see below Ta 0
.It \&. Ta Fn ber_get_eoc Ta 0
.It 0 Ta Fn ber_get_null Ta 0
.It \&. Ta Fn ober_get_eoc Ta 0
.It 0 Ta Fn ober_get_null Ta 0
.El
.Pp
For
@ -128,11 +128,11 @@ For a closing parenthesis or brace, parsing of the current sequence
or set is ended and parsing continues with the element following
the sequence or set.
.Sh RETURN VALUES
.Fn ber_getpos
.Fn ober_getpos
returns the value of
.Vt be_offs .
.Pp
.Fn ber_scanf_elements
.Fn ober_scanf_elements
returns 0 for success or \-1 when encountering elements that do not
agree with the expectations of
.Fa fmt
@ -140,17 +140,17 @@ or when
.Fa fmt
is syntactically invalid.
Even when
.Fn ber_scanf_elements
.Fn ober_scanf_elements
fails, some of the arguments may already have been filled in.
.Pp
The other functions return 0 if
.Va root
is of the requested type or \-1 otherwise.
.Sh SEE ALSO
.Xr ber_add_string 3 ,
.Xr ber_oid_cmp 3 ,
.Xr ber_read_elements 3 ,
.Xr ber_set_header 3
.Xr ober_add_string 3 ,
.Xr ober_oid_cmp 3 ,
.Xr ober_read_elements 3 ,
.Xr ober_set_header 3
.Sh STANDARDS
ITU-T Recommendation X.690, also known as ISO/IEC 8825-1:
Information technology - ASN.1 encoding rules.


+ 19
- 19
src/lib/libutil/ber_oid_cmp.3 View File

@ -1,4 +1,4 @@
.\" $OpenBSD: ber_oid_cmp.3,v 1.2 2019/05/21 12:30:07 rob Exp $
.\" $OpenBSD: ber_oid_cmp.3,v 1.2.2.1 2019/10/27 20:05:12 tb Exp $
.\"
.\" Copyright (c) 2007, 2012 Reyk Floeter <reyk@openbsd.org>
.\"
@ -14,23 +14,23 @@
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
.Dd $Mdocdate: May 21 2019 $
.Dt BER_OID_CMP 3
.Dd $Mdocdate: October 27 2019 $
.Dt OBER_OID_CMP 3
.Os
.Sh NAME
.Nm ber_oid_cmp ,
.Nm ber_oid2ber ,
.Nm ber_string2oid
.Nm ober_oid_cmp ,
.Nm ober_oid2ber ,
.Nm ober_string2oid
.Nd OID helper functions for the BER library
.Sh SYNOPSIS
.In sys/types.h
.In ber.h
.Ft "int"
.Fn "ber_oid_cmp" "struct ber_oid *a" "struct ber_oid *b"
.Fn "ober_oid_cmp" "struct ber_oid *a" "struct ber_oid *b"
.Ft "size_t"
.Fn "ber_oid2ber" "struct ber_oid *oid" "u_int8_t *buf" "size_t size"
.Fn "ober_oid2ber" "struct ber_oid *oid" "u_int8_t *buf" "size_t size"
.Ft "int"
.Fn "ber_string2oid" "const char *string" "struct ber_oid *oid"
.Fn "ober_string2oid" "const char *string" "struct ber_oid *oid"
.Sh DESCRIPTION
Object Identifiers are commonly used in ASN.1-based protocols.
These functions provide an interface to parse OIDs.
@ -48,24 +48,24 @@ struct ber_oid {
.Ed
.Pp
The
.Fn ber_oid2ber
.Fn ober_oid2ber
and
.Fn ber_string2oid
.Fn ober_string2oid
functions may be used to convert from and to
.Vt struct ber_oid .
.Pp
.Fn ber_oid_cmp
.Fn ober_oid_cmp
may be used to compare two
.Vt ber_oid
structures.
.Sh RETURN VALUES
.Fn ber_oid2ber
.Fn ober_oid2ber
returns the number of bytes written or 0 on faliure.
.Pp
.Fn ber_string2oid
.Fn ober_string2oid
returns 0 on success or -1 on failure.
.Pp
.Fn ber_oid_cmp
.Fn ober_oid_cmp
returns 0 when oids
.Fa a
and
@ -87,10 +87,10 @@ is larger, but a child of
.Fa a ,
2 is returned.
.Sh SEE ALSO
.Xr ber_add_string 3 ,
.Xr ber_get_string 3 ,
.Xr ber_read_elements 3 ,
.Xr ber_set_header 3
.Xr ober_add_string 3 ,
.Xr ober_get_string 3 ,
.Xr ober_read_elements 3 ,
.Xr ober_set_header 3
.Sh HISTORY
These functions first appeared as internal functions in
.Xr snmpd 8


+ 27
- 27
src/lib/libutil/ber_read_elements.3 View File

@ -1,4 +1,4 @@
.\" $OpenBSD: ber_read_elements.3,v 1.5 2019/05/21 12:30:07 rob Exp $
.\" $OpenBSD: ber_read_elements.3,v 1.5.2.1 2019/10/27 20:05:12 tb Exp $
.\"
.\" Copyright (c) 2007, 2012 Reyk Floeter <reyk@openbsd.org>
.\"
@ -14,35 +14,35 @@
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
.Dd $Mdocdate: May 21 2019 $
.Dt BER_READ_ELEMENTS 3
.Dd $Mdocdate: October 27 2019 $
.Dt OBER_READ_ELEMENTS 3
.Os
.Sh NAME
.Nm ber_set_readbuf ,
.Nm ber_set_application ,
.Nm ber_read_elements ,
.Nm ber_get_writebuf ,
.Nm ber_write_elements ,
.Nm ber_free
.Nm ober_set_readbuf ,
.Nm ober_set_application ,
.Nm ober_read_elements ,
.Nm ober_get_writebuf ,
.Nm ober_write_elements ,
.Nm ober_free
.Nd encode and decode ASN.1 with Basic Encoding Rules
.Sh SYNOPSIS
.In sys/types.h
.In ber.h
.Ft "void"
.Fn "ber_set_readbuf" "struct ber *ber" "void *buf" "size_t len"
.Fn "ober_set_readbuf" "struct ber *ber" "void *buf" "size_t len"
.Ft "void"
.Fo "ber_set_application"
.Fo "ober_set_application"
.Fa "struct ber *ber"
.Fa "unsigned int (*cb)(struct ber_element *)"
.Fc
.Ft "struct ber_element *"
.Fn "ber_read_elements" "struct ber *ber" "struct ber_element *root"
.Fn "ober_read_elements" "struct ber *ber" "struct ber_element *root"
.Ft "ssize_t"
.Fn "ber_get_writebuf" "struct ber *ber" "void **buf"
.Fn "ober_get_writebuf" "struct ber *ber" "void **buf"
.Ft "ssize_t"
.Fn "ber_write_elements" "struct ber *ber" "struct ber_element *root"
.Fn "ober_write_elements" "struct ber *ber" "struct ber_element *root"
.Ft "void"
.Fn "ber_free" "struct ber *ber"
.Fn "ober_free" "struct ber *ber"
.Sh DESCRIPTION
The BER API provides a mechanism to read and write ASN.1 using the
Basic Encoding Rules.
@ -95,7 +95,7 @@ struct ber_element {
};
.Ed
.Pp
.Fn ber_set_readbuf
.Fn ober_set_readbuf
sets
.Fa br_rbuf
to point an input buffer of BER encoded bytes in preparation for decoding.
@ -108,7 +108,7 @@ application, commonly obtained by
or
.Xr tls_read 3 .
.Pp
.Fn ber_read_elements
.Fn ober_read_elements
may then be called to parse, validate, and store the
.Fa ber
data stream into its
@ -118,12 +118,12 @@ parts for subsequent processing.
The calling application must have explicit knowledge of the expected data
types in order for correct decoding.
.Pp
.Fn ber_get_writebuf
.Fn ober_get_writebuf
sets
.Fa br_wbuf
to point to an output buffer for writing a BER byte stream.
.Pp
.Fn ber_write_elements
.Fn ober_write_elements
encodes
.Fa root
into a compliant BER byte stream which is written to
@ -135,23 +135,23 @@ functions such as
or
.Xr tls_write 3 .
.Pp
.Fn ber_free
.Fn ober_free
frees any dynamically allocated storage associated with
.Fa ber .
.Sh RETURN VALUES
.Fn ber_read_elements
.Fn ober_read_elements
returns a pointer to a fully populated list of one or more
.Vt ber_element
structures or
.Dv NULL
on a type mismatch or read error.
.Pp
.Fn ber_get_writebuf
.Fn ober_get_writebuf
returns the number of bytes contained within the buffer
.Fa buf
or \-1 on failure.
.Pp
.Fn ber_write_elements
.Fn ober_write_elements
returns the number of bytes written.
Otherwise \-1 is returned and the global variable
.Va errno
@ -161,10 +161,10 @@ is set to indicate the error.
.Xr recv 2 ,
.Xr send 2 ,
.Xr write 2 ,
.Xr ber_add_string 3 ,
.Xr ber_get_string 3 ,
.Xr ber_oid_cmp 3 ,
.Xr ber_set_header 3 ,
.Xr ober_add_string 3 ,
.Xr ober_get_string 3 ,
.Xr ober_oid_cmp 3 ,
.Xr ober_set_header 3 ,
.Xr tls_read 3
.Sh STANDARDS
ITU-T Recommendation X.690, also known as ISO/IEC 8825-1:


+ 33
- 33
src/lib/libutil/ber_set_header.3 View File

@ -1,4 +1,4 @@
.\" $OpenBSD: ber_set_header.3,v 1.3 2019/08/14 19:08:03 martijn Exp $
.\" $OpenBSD: ber_set_header.3,v 1.3.2.1 2019/10/27 20:05:12 tb Exp $
.\"
.\" Copyright (c) 2007, 2012 Reyk Floeter <reyk@openbsd.org>
.\"
@ -14,42 +14,42 @@
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
.Dd $Mdocdate: August 14 2019 $
.Dt BER_SET_HEADER 3
.Dd $Mdocdate: October 27 2019 $
.Dt OBER_SET_HEADER 3
.Os
.Sh NAME
.Nm ber_set_header ,
.Nm ber_calc_len ,
.Nm ber_set_writecallback ,
.Nm ber_link_elements ,
.Nm ber_replace_elements ,
.Nm ber_unlink_elements ,
.Nm ber_free_element ,
.Nm ber_free_elements
.Nm ober_set_header ,
.Nm ober_calc_len ,
.Nm ober_set_writecallback ,
.Nm ober_link_elements ,
.Nm ober_replace_elements ,
.Nm ober_unlink_elements ,
.Nm ober_free_element ,
.Nm ober_free_elements
.Nd change and destroy ASN.1 objects for BER encoding
.Sh SYNOPSIS
.In sys/types.h
.In ber.h
.Ft "void"
.Fn "ber_set_header" "struct ber_element *elm" "int class" "unsigned int type"
.Fn "ober_set_header" "struct ber_element *elm" "int class" "unsigned int type"
.Ft "size_t"
.Fn "ber_calc_len" "struct ber_element *root"
.Fn "ober_calc_len" "struct ber_element *root"
.Ft "void"
.Fo "ber_set_writecallback"
.Fo "ober_set_writecallback"
.Fa "struct ber_element *elm"
.Fa "void (*cb)(void *arg, size_t offs)"
.Fa "void *arg"
.Fc
.Ft "void"
.Fn "ber_link_elements" "struct ber_element *prev" "struct ber_element *elm"
.Fn "ober_link_elements" "struct ber_element *prev" "struct ber_element *elm"
.Ft "void"
.Fn "ber_replace_elements" "struct ber_element *prev" "struct ber_element *elm"
.Fn "ober_replace_elements" "struct ber_element *prev" "struct ber_element *elm"
.Ft "struct ber_element *"
.Fn "ber_unlink_elements" "struct ber_element *prev"
.Fn "ober_unlink_elements" "struct ber_element *prev"
.Ft "void"
.Fn "ber_free_element" "struct ber_element *root"
.Fn "ober_free_element" "struct ber_element *root"
.Ft "void"
.Fn "ber_free_elements" "struct ber_element *root"
.Fn "ober_free_elements" "struct ber_element *root"
.Pp
.Fd #define BER_TYPE_BOOLEAN 1
.Fd #define BER_TYPE_INTEGER 2
@ -70,7 +70,7 @@
.Fd #define BER_CLASS_CONTEXT 0x2
.Fd #define BER_CLASS_PRIVATE 0x3
.Sh DESCRIPTION
.Fn ber_set_header
.Fn ober_set_header
sets the
.Fa class
and
@ -78,22 +78,22 @@ and
of
.Fa elm .
.Pp
.Fn ber_calc_len
.Fn ober_calc_len
determines the total length of
.Fa root .
.Pp
.Fn ber_set_writecallback
.Fn ober_set_writecallback
registers the
.Vt br_cb
callback function.
.Pp
.Fn ber_link_elements
.Fn ober_link_elements
links
.Fa prev
and
.Fa elm .
.Pp
.Fn ber_replace_elements
.Fn ober_replace_elements
replaces
.Fa prev
with
@ -101,30 +101,30 @@ with
and frees any dynamically allocated storage assocated with
.Fa prev .
.Pp
.Fn ber_unlink_elements
.Fn ober_unlink_elements
unlinks
.Fa prev .
.Pp
.Fn ber_free_element
.Fn ober_free_element
and
.Fn ber_free_elements
.Fn ober_free_elements
free any dynamically allocated storage associated with
.Fa root .
.Sh RETURN VALUES
.Fn ber_calc_len
.Fn ober_calc_len
returns the total length of a fully populated
.Fa root
containing one or more
.Vt ber_element .
.Pp
.Fn ber_unlink_elements
.Fn ober_unlink_elements
returns a pointer to
.Vt ber_element .
.Sh SEE ALSO
.Xr ber_add_string 3 ,
.Xr ber_get_string 3 ,
.Xr ber_oid_cmp 3 ,
.Xr ber_read_elements 3
.Xr ober_add_string 3 ,
.Xr ober_get_string 3 ,
.Xr ober_oid_cmp 3 ,
.Xr ober_read_elements 3
.Sh STANDARDS
ITU-T Recommendation X.690, also known as ISO/IEC 8825-1:
Information technology - ASN.1 encoding rules.


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