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Diffstat (limited to 'src/lib/krb5/asn.1/asn1buf.c')
-rw-r--r--src/lib/krb5/asn.1/asn1buf.c177
1 files changed, 89 insertions, 88 deletions
diff --git a/src/lib/krb5/asn.1/asn1buf.c b/src/lib/krb5/asn.1/asn1buf.c
index 5320e184e..49ef84fbb 100644
--- a/src/lib/krb5/asn.1/asn1buf.c
+++ b/src/lib/krb5/asn.1/asn1buf.c
@@ -1,3 +1,4 @@
+/* -*- mode: c; indent-tabs-mode: nil -*- */
/* Coding Buffer Implementation */
/*
@@ -47,7 +48,7 @@
next >= base
next <= bound+2 (i.e. next should be able to step just past the bound,
but no further. (The bound should move out in response
- to being crossed by next.)) */
+ to being crossed by next.)) */
#define ASN1BUF_OMIT_INLINE_FUNCS
#include "asn1buf.h"
@@ -55,7 +56,7 @@
#include <stdio.h>
#include "asn1_get.h"
-#define asn1_is_eoc(class, num, indef) \
+#define asn1_is_eoc(class, num, indef) \
((class) == UNIVERSAL && !(num) && !(indef))
asn1_error_code asn1buf_create(asn1buf **buf)
@@ -80,30 +81,30 @@ asn1_error_code asn1buf_imbed(asn1buf *subbuf, const asn1buf *buf, const unsigne
{
subbuf->base = subbuf->next = buf->next;
if (!indef) {
- subbuf->bound = subbuf->base + length - 1;
- if (subbuf->bound > buf->bound)
- return ASN1_OVERRUN;
+ subbuf->bound = subbuf->base + length - 1;
+ if (subbuf->bound > buf->bound)
+ return ASN1_OVERRUN;
} else /* constructed indefinite */
- subbuf->bound = buf->bound;
+ subbuf->bound = buf->bound;
return 0;
}
asn1_error_code asn1buf_sync(asn1buf *buf, asn1buf *subbuf,
- asn1_class asn1class, asn1_tagnum lasttag,
- unsigned int length, int indef, int seqindef)
+ asn1_class asn1class, asn1_tagnum lasttag,
+ unsigned int length, int indef, int seqindef)
{
asn1_error_code retval;
if (!seqindef) {
- /* sequence was encoded as definite length */
- buf->next = subbuf->bound + 1;
+ /* sequence was encoded as definite length */
+ buf->next = subbuf->bound + 1;
} else if (!asn1_is_eoc(asn1class, lasttag, indef)) {
- retval = asn1buf_skiptail(subbuf, length, indef);
- if (retval)
- return retval;
+ retval = asn1buf_skiptail(subbuf, length, indef);
+ if (retval)
+ return retval;
} else {
- /* We have just read the EOC octets. */
- buf->next = subbuf->next;
+ /* We have just read the EOC octets. */
+ buf->next = subbuf->next;
}
return 0;
}
@@ -116,26 +117,26 @@ asn1_error_code asn1buf_skiptail(asn1buf *buf, const unsigned int length, const
nestlevel = 1 + indef;
if (!indef) {
- if (length <= buf->bound - buf->next + 1)
- buf->next += length;
- else
- return ASN1_OVERRUN;
+ if (length <= buf->bound - buf->next + 1)
+ buf->next += length;
+ else
+ return ASN1_OVERRUN;
}
while (nestlevel > 0) {
- if (buf->bound - buf->next + 1 <= 0)
- return ASN1_OVERRUN;
- retval = asn1_get_tag_2(buf, &t);
- if (retval) return retval;
- if (!t.indef) {
- if (t.length <= buf->bound - buf->next + 1)
- buf->next += t.length;
- else
- return ASN1_OVERRUN;
- }
- if (t.indef)
- nestlevel++;
- if (asn1_is_eoc(t.asn1class, t.tagnum, t.indef))
- nestlevel--; /* got an EOC encoding */
+ if (buf->bound - buf->next + 1 <= 0)
+ return ASN1_OVERRUN;
+ retval = asn1_get_tag_2(buf, &t);
+ if (retval) return retval;
+ if (!t.indef) {
+ if (t.length <= buf->bound - buf->next + 1)
+ buf->next += t.length;
+ else
+ return ASN1_OVERRUN;
+ }
+ if (t.indef)
+ nestlevel++;
+ if (asn1_is_eoc(t.asn1class, t.tagnum, t.indef))
+ nestlevel--; /* got an EOC encoding */
}
return 0;
}
@@ -143,9 +144,9 @@ asn1_error_code asn1buf_skiptail(asn1buf *buf, const unsigned int length, const
asn1_error_code asn1buf_destroy(asn1buf **buf)
{
if (*buf != NULL) {
- free((*buf)->base);
- free(*buf);
- *buf = NULL;
+ free((*buf)->base);
+ free(*buf);
+ *buf = NULL;
}
return 0;
}
@@ -172,7 +173,7 @@ asn1_error_code asn1buf_insert_octetstring(asn1buf *buf, const unsigned int len,
retval = asn1buf_ensure_space(buf,len);
if (retval) return retval;
for (length=1; length<=len; length++,(buf->next)++)
- *(buf->next) = (char)(s[len-length]);
+ *(buf->next) = (char)(s[len-length]);
return 0;
}
@@ -184,7 +185,7 @@ asn1_error_code asn1buf_insert_charstring(asn1buf *buf, const unsigned int len,
retval = asn1buf_ensure_space(buf,len);
if (retval) return retval;
for (length=1; length<=len; length++,(buf->next)++)
- *(buf->next) = (char)(s[len-length]);
+ *(buf->next) = (char)(s[len-length]);
return 0;
}
@@ -202,14 +203,14 @@ asn1_error_code asn1buf_remove_octetstring(asn1buf *buf, const unsigned int len,
if (len > buf->bound + 1 - buf->next) return ASN1_OVERRUN;
if (len == 0) {
- *s = 0;
- return 0;
+ *s = 0;
+ return 0;
}
*s = (asn1_octet*)malloc(len*sizeof(asn1_octet));
if (*s == NULL)
- return ENOMEM;
+ return ENOMEM;
for (i=0; i<len; i++)
- (*s)[i] = (asn1_octet)(buf->next)[i];
+ (*s)[i] = (asn1_octet)(buf->next)[i];
buf->next += len;
return 0;
}
@@ -220,13 +221,13 @@ asn1_error_code asn1buf_remove_charstring(asn1buf *buf, const unsigned int len,
if (len > buf->bound + 1 - buf->next) return ASN1_OVERRUN;
if (len == 0) {
- *s = 0;
- return 0;
+ *s = 0;
+ return 0;
}
*s = (char*)malloc(len*sizeof(char));
if (*s == NULL) return ENOMEM;
for (i=0; i<len; i++)
- (*s)[i] = (char)(buf->next)[i];
+ (*s)[i] = (char)(buf->next)[i];
buf->next += len;
return 0;
}
@@ -241,7 +242,7 @@ int asn1buf_remains(asn1buf *buf, int indef)
* Two 0 octets means the end of an indefinite encoding.
*/
if (indef && remain >= 2 && !*(buf->next) && !*(buf->next + 1))
- return 0;
+ return 0;
else return remain;
}
@@ -256,12 +257,12 @@ asn1_error_code asn12krb5_buf(const asn1buf *buf, krb5_data **code)
(*code)->length = asn1buf_len(buf);
(*code)->data = (char*)malloc((((*code)->length)+1)*sizeof(char));
if ((*code)->data == NULL) {
- free(*code);
- *code = NULL;
- return ENOMEM;
+ free(*code);
+ *code = NULL;
+ return ENOMEM;
}
for (i=0; i < (*code)->length; i++)
- ((*code)->data)[i] = (buf->base)[((*code)->length)-i-1];
+ ((*code)->data)[i] = (buf->base)[((*code)->length)-i-1];
((*code)->data)[(*code)->length] = '\0';
return 0;
}
@@ -275,21 +276,21 @@ asn1_error_code asn1buf_unparse(const asn1buf *buf, char **s)
{
free(*s);
if (buf == NULL) {
- *s = malloc(sizeof("<NULL>"));
- if (*s == NULL) return ENOMEM;
- strcpy(*s,"<NULL>");
+ *s = malloc(sizeof("<NULL>"));
+ if (*s == NULL) return ENOMEM;
+ strcpy(*s,"<NULL>");
} else if (buf->base == NULL) {
- *s = malloc(sizeof("<EMPTY>"));
- if (*s == NULL) return ENOMEM;
- strcpy(*s,"<EMPTY>");
+ *s = malloc(sizeof("<EMPTY>"));
+ if (*s == NULL) return ENOMEM;
+ strcpy(*s,"<EMPTY>");
} else {
- unsigned int length = asn1buf_len(buf);
- unsigned int i;
+ unsigned int length = asn1buf_len(buf);
+ unsigned int i;
- *s = calloc(length+1, sizeof(char));
- if (*s == NULL) return ENOMEM;
- (*s)[length] = '\0';
- for (i=0; i<length; i++) ;
+ *s = calloc(length+1, sizeof(char));
+ if (*s == NULL) return ENOMEM;
+ (*s)[length] = '\0';
+ for (i=0; i<length; i++) ;
/* OLDDECLARG( (*s)[i] = , (buf->base)[length-i-1]) */
}
return 0;
@@ -297,32 +298,32 @@ asn1_error_code asn1buf_unparse(const asn1buf *buf, char **s)
asn1_error_code asn1buf_hex_unparse(const asn1buf *buf, char **s)
{
-#define hexchar(d) ((d)<=9 ? ('0'+(d)) : \
- ((d)<=15 ? ('A'+(d)-10) : \
- 'X'))
+#define hexchar(d) ((d)<=9 ? ('0'+(d)) : \
+ ((d)<=15 ? ('A'+(d)-10) : \
+ 'X'))
free(*s);
if (buf == NULL) {
- *s = malloc(sizeof("<NULL>"));
- if (*s == NULL) return ENOMEM;
- strcpy(*s,"<NULL>");
+ *s = malloc(sizeof("<NULL>"));
+ if (*s == NULL) return ENOMEM;
+ strcpy(*s,"<NULL>");
} else if (buf->base == NULL) {
- *s = malloc(sizeof("<EMPTY>"));
- if (*s == NULL) return ENOMEM;
- strcpy(*s,"<EMPTY>");
+ *s = malloc(sizeof("<EMPTY>"));
+ if (*s == NULL) return ENOMEM;
+ strcpy(*s,"<EMPTY>");
} else {
- unsigned int length = asn1buf_len(buf);
- int i;
-
- *s = malloc(3*length);
- if (*s == NULL) return ENOMEM;
- for (i = length-1; i >= 0; i--) {
- (*s)[3*(length-i-1)] = hexchar(((buf->base)[i]&0xF0)>>4);
- (*s)[3*(length-i-1)+1] = hexchar((buf->base)[i]&0x0F);
- (*s)[3*(length-i-1)+2] = ' ';
- }
- (*s)[3*length-1] = '\0';
+ unsigned int length = asn1buf_len(buf);
+ int i;
+
+ *s = malloc(3*length);
+ if (*s == NULL) return ENOMEM;
+ for (i = length-1; i >= 0; i--) {
+ (*s)[3*(length-i-1)] = hexchar(((buf->base)[i]&0xF0)>>4);
+ (*s)[3*(length-i-1)+1] = hexchar((buf->base)[i]&0x0F);
+ (*s)[3*(length-i-1)+2] = ' ';
+ }
+ (*s)[3*length-1] = '\0';
}
return 0;
}
@@ -349,8 +350,8 @@ asn1_error_code asn1buf_ensure_space(asn1buf *buf, const unsigned int amount)
{
int avail = asn1buf_free(buf);
if (avail < amount) {
- asn1_error_code retval = asn1buf_expand(buf, amount-avail);
- if (retval) return retval;
+ asn1_error_code retval = asn1buf_expand(buf, amount-avail);
+ if (retval) return retval;
}
return 0;
}
@@ -364,13 +365,13 @@ asn1_error_code asn1buf_expand(asn1buf *buf, unsigned int inc)
else bound_offset = buf->bound - buf->base;
if (inc < STANDARD_INCREMENT)
- inc = STANDARD_INCREMENT;
+ inc = STANDARD_INCREMENT;
if (buf->base == NULL)
- buf->base = malloc((asn1buf_size(buf)+inc) * sizeof(asn1_octet));
+ buf->base = malloc((asn1buf_size(buf)+inc) * sizeof(asn1_octet));
else
- buf->base = realloc(buf->base,
- (asn1buf_size(buf)+inc) * sizeof(asn1_octet));
+ buf->base = realloc(buf->base,
+ (asn1buf_size(buf)+inc) * sizeof(asn1_octet));
if (buf->base == NULL) return ENOMEM;
buf->bound = (buf->base) + bound_offset + inc;
buf->next = (buf->base) + next_offset;
generated by cgit (git 2.34.1) at 2024-11-10 16:02:08 +0000