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Diffstat (limited to 'libc/inet/getservice.c')
-rw-r--r--libc/inet/getservice.c47
1 files changed, 23 insertions, 24 deletions
diff --git a/libc/inet/getservice.c b/libc/inet/getservice.c
index 03f5c29c3..47d26a262 100644
--- a/libc/inet/getservice.c
+++ b/libc/inet/getservice.c
@@ -35,6 +35,7 @@ __UCLIBC_MUTEX_STATIC(mylock, PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP);
static parser_t *servp = NULL;
static struct servent serve;
static char *servbuf = NULL;
+static size_t servbuf_sz = SBUFSIZE;
static smallint serv_stayopen;
void setservent(int stayopen)
@@ -64,11 +65,11 @@ libc_hidden_def(endservent)
int getservent_r(struct servent *result_buf,
char *buf, size_t buflen, struct servent **result)
{
- char **alias, *cp = NULL;
+ char **alias;
char **serv_aliases;
char **tok = NULL;
const size_t aliaslen = sizeof(*serv_aliases) * MAXALIASES;
- int ret = ERANGE;
+ int ret = ENOENT;
*result = NULL;
if (buflen < aliaslen
@@ -76,31 +77,24 @@ int getservent_r(struct servent *result_buf,
goto DONE_NOUNLOCK;
__UCLIBC_MUTEX_LOCK(mylock);
- ret = ENOENT;
+
if (servp == NULL)
setservent(serv_stayopen);
if (servp == NULL)
goto DONE;
+
servp->data = buf;
servp->data_len = aliaslen;
servp->line_len = buflen - aliaslen;
/* <name>[[:space:]]<port>/<proto>[[:space:]][<aliases>] */
- if (!config_read(servp, &tok, 4, 3, "# \t/", PARSE_NORMAL)) {
+ if (!config_read(servp, &tok, MAXALIASES, 3, "# \t/", PARSE_NORMAL)) {
+ ret = ERANGE;
goto DONE;
}
result_buf->s_name = *(tok++);
result_buf->s_port = htons((u_short) atoi(*(tok++)));
result_buf->s_proto = *(tok++);
result_buf->s_aliases = alias = serv_aliases = tok;
- cp = *alias;
- while (cp && *cp) {
- if (alias < &serv_aliases[MAXALIASES - 1])
- *alias++ = cp;
- cp = strpbrk(cp, " \t");
- if (cp != NULL)
- *cp++ = '\0';
- }
- *alias = NULL;
*result = result_buf;
ret = 0;
DONE:
@@ -113,19 +107,20 @@ libc_hidden_def(getservent_r)
static void __initbuf(void)
{
- if (!servbuf) {
- servbuf = malloc(SBUFSIZE);
- if (!servbuf)
- abort();
- }
+ if (servbuf)
+ servbuf_sz += BUFSZ;
+ servbuf = realloc(servbuf, servbuf_sz);
+ if (!servbuf)
+ abort();
}
struct servent *getservent(void)
{
struct servent *result;
- __initbuf();
- getservent_r(&serve, servbuf, SBUFSIZE, &result);
+ do {
+ __initbuf();
+ } while (getservent_r(&serve, servbuf, servbuf_sz, &result) == ERANGE);
return result;
}
@@ -160,8 +155,10 @@ struct servent *getservbyname(const char *name, const char *proto)
{
struct servent *result;
- __initbuf();
- getservbyname_r(name, proto, &serve, servbuf, SBUFSIZE, &result);
+ do {
+ __initbuf();
+ } while (getservbyname_r(name, proto, &serve, servbuf, servbuf_sz, &result)
+ == ERANGE);
return result;
}
@@ -191,8 +188,10 @@ struct servent *getservbyport(int port, const char *proto)
{
struct servent *result;
- __initbuf();
- getservbyport_r(port, proto, &serve, servbuf, SBUFSIZE, &result);
+ do {
+ __initbuf();
+ } while (getservbyport_r(port, proto, &serve, servbuf, servbuf_sz, &result)
+ == ERANGE);
return result;
}
libc_hidden_def(getservbyport)