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Use strlcpy, not strncpy

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svn:r2603
This commit is contained in:
Nick Mathewson 2004-10-27 06:03:28 +00:00
parent bc62f8e983
commit f67f83b1fa
4 changed files with 10 additions and 18 deletions
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3
src/common/crypto.c
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@ -462,8 +462,7 @@ crypto_pk_write_private_key_to_filename(crypto_pk_env_t *env,
len = BIO_get_mem_data(bio, &cp);
tor_assert(len >= 0);
s = tor_malloc(len+1);
strncpy(s, cp, len);
s[len] = '\0';
strlcpy(s, cp, len+1);
r = write_str_to_file(fname, s, 0);
BIO_free(bio);
free(s);

6
src/common/util.c
View File

@ -195,8 +195,7 @@ char *tor_strndup(const char *s, size_t n) {
char *dup;
tor_assert(s);
dup = tor_malloc(n+1);
strncpy(dup, s, n);
dup[n] = 0;
strlcpy(dup, s, n+1);
return dup;
}
@ -1770,7 +1769,8 @@ char *expand_filename(const char *filename)
log_fn(LOG_WARN, "Couldn't find $HOME environment variable while expanding %s", filename);
return NULL;
}
/* minus two characters for ~/, plus one for /, plus one for NUL. */
/* minus two characters for ~/, plus one for /, plus one for NUL.
* Round up to 16 in case we can't do math. */
len = strlen(home)+strlen(filename)+16;
result = tor_malloc(len);
snprintf(result,len,"%s/%s",home,filename+2);

4
src/or/dirserv.c
View File

@ -386,9 +386,7 @@ dirserv_add_descriptor(const char **desc)
ent->nickname = tor_strdup(ri->nickname);
ent->published = ri->published_on;
ent->desc_len = desc_len;
ent->descriptor = tor_malloc(desc_len+1);
strncpy(ent->descriptor, start, desc_len);
ent->descriptor[desc_len] = '\0';
ent->descriptor = tor_strndup(start,desc_len);
ent->router = ri;
/* XXX008 is ent->verified useful/used for anything? */
ent->verified = verified; /* XXXX008 support other possibilities. */

15
src/or/dns.c
View File

@ -201,8 +201,7 @@ int dns_resolve(connection_t *exitconn) {
purge_expired_resolves(now);
/* now check the tree to see if 'address' is already there. */
strncpy(search.address, exitconn->address, MAX_ADDRESSLEN);
search.address[MAX_ADDRESSLEN-1] = 0;
strlcpy(search.address, exitconn->address, sizeof(search.address));
resolve = SPLAY_FIND(cache_tree, &cache_root, &search);
if(resolve) { /* already there */
switch(resolve->state) {
@ -237,8 +236,7 @@ int dns_resolve(connection_t *exitconn) {
resolve = tor_malloc_zero(sizeof(struct cached_resolve));
resolve->state = CACHE_STATE_PENDING;
resolve->expire = now + MAX_DNS_ENTRY_AGE;
strncpy(resolve->address, exitconn->address, MAX_ADDRESSLEN);
resolve->address[MAX_ADDRESSLEN-1] = 0;
strlcpy(resolve->address, exitconn->address, sizeof(resolve->address));
/* add us to the pending list */
pending_connection = tor_malloc_zero(sizeof(struct pending_connection_t));
@ -306,8 +304,7 @@ void connection_dns_remove(connection_t *conn)
tor_assert(conn->type == CONN_TYPE_EXIT);
tor_assert(conn->state == EXIT_CONN_STATE_RESOLVING);
strncpy(search.address, conn->address, MAX_ADDRESSLEN);
search.address[MAX_ADDRESSLEN-1] = 0;
strlcpy(search.address, conn->address, sizeof(search.address));
resolve = SPLAY_FIND(cache_tree, &cache_root, &search);
if(!resolve) {
@ -383,8 +380,7 @@ void dns_cancel_pending_resolve(char *address) {
struct cached_resolve *resolve;
connection_t *pendconn;
strncpy(search.address, address, MAX_ADDRESSLEN);
search.address[MAX_ADDRESSLEN-1] = 0;
strlcpy(search.address, address, sizeof(search.address));
resolve = SPLAY_FIND(cache_tree, &cache_root, &search);
if(!resolve) {
@ -454,8 +450,7 @@ static void dns_found_answer(char *address, uint32_t addr, char outcome) {
connection_t *pendconn;
circuit_t *circ;
strncpy(search.address, address, MAX_ADDRESSLEN);
search.address[MAX_ADDRESSLEN-1] = 0;
strlcpy(search.address, address, sizeof(search.address));
resolve = SPLAY_FIND(cache_tree, &cache_root, &search);
if(!resolve) {