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Code Issues Releases Wiki Activity

consolidated duplicated code for filename mangling, removed sanity checks that

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weren't.
This commit is contained in:
Brian Wellington 2001-05-09 23:04:50 +00:00
parent 73a0d5c6ec
commit 8e4da48fa7
3 changed files with 46 additions and 30 deletions
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43
lib/dns/sec/dst/dst_api.c
View File

@ -19,7 +19,7 @@
/*
* Principal Author: Brian Wellington
* $Id: dst_api.c,v 1.78 2001/05/04 17:57:33 gson Exp $
* $Id: dst_api.c,v 1.79 2001/05/09 23:04:47 bwelling Exp $
*/
#include <config.h>
@ -33,6 +33,7 @@
#include <isc/lex.h>
#include <isc/mem.h>
#include <isc/once.h>
#include <isc/print.h>
#include <isc/random.h>
#include <isc/string.h>
#include <isc/time.h>
@ -791,23 +792,17 @@ read_public_key(const char *filename, isc_mem_t *mctx, dst_key_t **keyp) {
dns_rdata_t rdata = DNS_RDATA_INIT;
unsigned int opt = ISC_LEXOPT_DNSMULTILINE;
char *newfilename;
unsigned int newfilenamelen;
isc_textregion_t r;
dns_rdataclass_t rdclass = dns_rdataclass_in;
if (strlen(filename) < 8)
return (DST_R_INVALIDPUBLICKEY);
newfilename = isc_mem_get(mctx, strlen(filename) + 5);
newfilenamelen = strlen(filename) + 5;
newfilename = isc_mem_get(mctx, newfilenamelen);
if (newfilename == NULL)
return (ISC_R_NOMEMORY);
strcpy(newfilename, filename);
if (strcmp(filename + strlen(filename) - 8, ".private") == 0)
sprintf(newfilename + strlen(filename) - 8, ".key");
else if (strcmp(filename + strlen(filename) - 1, ".") == 0)
sprintf(newfilename + strlen(filename), "key");
else if (strcmp(filename + strlen(filename) - 4, ".key") != 0)
sprintf(newfilename + strlen(filename), ".key");
ret = dst__file_addsuffix(newfilename, newfilenamelen, filename,
".key");
INSIST(ret == ISC_R_SUCCESS);
/*
* Open the file and read its formatted contents
@ -886,7 +881,7 @@ read_public_key(const char *filename, isc_mem_t *mctx, dst_key_t **keyp) {
isc_lex_close(lex);
isc_lex_destroy(&lex);
}
isc_mem_put(mctx, newfilename, strlen(filename) + 5);
isc_mem_put(mctx, newfilename, newfilenamelen);
return (ret);
}
@ -1057,6 +1052,26 @@ frombuffer(dns_name_t *name, const unsigned int alg, const unsigned int flags,
return (ISC_R_SUCCESS);
}
isc_result_t
dst__file_addsuffix(char *filename, unsigned int len,
const char *ofilename, const char *suffix)
{
unsigned int olen = strlen(ofilename);
int n;
if (olen > 1 && ofilename[olen - 1] == '.')
olen -= 1;
else if (olen > 8 && strcmp(ofilename + olen - 8, ".private") == 0)
olen -= 8;
else if (olen > 4 && strcmp(ofilename + olen - 8, ".key") == 0)
olen -= 4;
n = snprintf(filename, len, "%.*s%s", olen, ofilename, suffix);
if (n < 0)
return (ISC_R_NOSPACE);
return (ISC_R_SUCCESS);
}
void *
dst__mem_alloc(size_t size) {
INSIST(dst_memory_pool != NULL);

9
lib/dns/sec/dst/dst_internal.h
View File

@ -17,7 +17,7 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: dst_internal.h,v 1.34 2001/01/24 02:22:53 bwelling Exp $ */
/* $Id: dst_internal.h,v 1.35 2001/05/09 23:04:49 bwelling Exp $ */
#ifndef DST_DST_INTERNAL_H
#define DST_DST_INTERNAL_H 1
@ -133,6 +133,13 @@ void * dst__mem_realloc(void *ptr, size_t size);
isc_result_t dst__entropy_getdata(void *buf, unsigned int len,
isc_boolean_t pseudo);
/*
* Generic helper functions.
*/
isc_result_t
dst__file_addsuffix(char *filename, unsigned int len,
const char *ofilename, const char *suffix);
ISC_LANG_ENDDECLS
#endif /* DST_DST_INTERNAL_H */

24
lib/dns/sec/dst/dst_parse.c
View File

@ -19,7 +19,7 @@
/*
* Principal Author: Brian Wellington
* $Id: dst_parse.c,v 1.28 2001/01/24 02:22:54 bwelling Exp $
* $Id: dst_parse.c,v 1.29 2001/05/09 23:04:50 bwelling Exp $
*/
#include <config.h>
@ -195,24 +195,18 @@ dst__privstruct_parsefile(dst_key_t *key, const dns_keytag_t id,
isc_token_t token;
unsigned int opt = ISC_LEXOPT_EOL;
char *newfilename;
int newfilenamelen;
isc_result_t ret;
REQUIRE(priv != NULL);
if (strlen(filename) < 8)
return (DST_R_INVALIDPRIVATEKEY);
newfilename = isc_mem_get(mctx, strlen(filename) + 9);
newfilenamelen = strlen(filename) + 9;
newfilename = isc_mem_get(mctx, newfilenamelen);
if (newfilename == NULL)
return (ISC_R_NOMEMORY);
strcpy(newfilename, filename);
if (strcmp(filename + strlen(filename) - 4, ".key") == 0)
sprintf(newfilename + strlen(filename) - 4, ".private");
else if (strcmp(filename + strlen(filename) - 1, ".") == 0)
sprintf(newfilename + strlen(filename), "private");
else if (strcmp(filename + strlen(filename) - 8, ".private") != 0)
sprintf(newfilename + strlen(filename), ".private");
ret = dst__file_addsuffix(newfilename, newfilenamelen, filename,
".private");
INSIST(ret == ISC_R_SUCCESS);
priv->nelements = 0;
@ -338,7 +332,7 @@ dst__privstruct_parsefile(dst_key_t *key, const dns_keytag_t id,
isc_lex_close(lex);
isc_lex_destroy(&lex);
isc_mem_put(mctx, newfilename, strlen(filename) + 9);
isc_mem_put(mctx, newfilename, newfilenamelen);
return (ISC_R_SUCCESS);
@ -347,7 +341,7 @@ fail:
isc_lex_close(lex);
isc_lex_destroy(&lex);
}
isc_mem_put(mctx, newfilename, strlen(filename) + 9);
isc_mem_put(mctx, newfilename, newfilenamelen);
priv->nelements = n;
dst__privstruct_free(priv, mctx);