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Diffstat (limited to 'libc/inet/resolv.c')
-rw-r--r--libc/inet/resolv.c624
1 files changed, 301 insertions, 323 deletions
diff --git a/libc/inet/resolv.c b/libc/inet/resolv.c
index 5d3e2d871..6634d594b 100644
--- a/libc/inet/resolv.c
+++ b/libc/inet/resolv.c
@@ -275,9 +275,9 @@ struct resolv_answer {
};
enum etc_hosts_action {
- GET_HOSTS_BYNAME = 0,
- GETHOSTENT,
- GET_HOSTS_BYADDR,
+ GET_HOSTS_BYNAME = 0,
+ GETHOSTENT,
+ GET_HOSTS_BYADDR,
};
/* function prototypes */
@@ -418,7 +418,7 @@ int attribute_hidden __decode_dotted(const unsigned char * const data, int offse
if (!data)
return -1;
- while ((l=data[offset++])) {
+ while ((l = data[offset++])) {
if (measure)
total++;
if ((l & 0xc0) == (0xc0)) {
@@ -446,9 +446,8 @@ int attribute_hidden __decode_dotted(const unsigned char * const data, int offse
}
/* The null byte must be counted too */
- if (measure) {
+ if (measure)
total++;
- }
DPRINTF("Total decode len = %d\n", total);
@@ -708,7 +707,7 @@ __UCLIBC_MUTEX_STATIC(mylock, PTHREAD_MUTEX_INITIALIZER);
* is pretty lame. I think these two variables can probably be de-global-ized,
* which should eliminate the need for doing locking here... Needs a closer
* look anyways. */
-static int ns=0, id=1;
+static int ns = 0, id = 1;
int attribute_hidden __dns_lookup(const char *name, int type, int nscount, char **nsip,
unsigned char **outpacket, struct resolv_answer *a)
@@ -734,7 +733,7 @@ int attribute_hidden __dns_lookup(const char *name, int type, int nscount, char
fd = -1;
if (!packet || !lookup || !nscount)
- goto fail;
+ goto fail;
DPRINTF("Looking up type %d answer for '%s'\n", type, name);
@@ -805,36 +804,37 @@ int attribute_hidden __dns_lookup(const char *name, int type, int nscount, char
#endif
if (fd < 0) {
retries++;
- continue;
+ continue;
}
/* Connect to the UDP socket so that asyncronous errors are returned */
#ifdef __UCLIBC_HAS_IPV6__
if (v6) {
- sa6.sin6_family = AF_INET6;
- sa6.sin6_port = htons(NAMESERVER_PORT);
- /* sa6.sin6_addr is already here */
- rc = connect(fd, (struct sockaddr *) &sa6, sizeof(sa6));
+ sa6.sin6_family = AF_INET6;
+ sa6.sin6_port = htons(NAMESERVER_PORT);
+ /* sa6.sin6_addr is already here */
+ rc = connect(fd, (struct sockaddr *) &sa6, sizeof(sa6));
} else {
#endif
- sa.sin_family = AF_INET;
- sa.sin_port = htons(NAMESERVER_PORT);
- __UCLIBC_MUTEX_LOCK(__resolv_lock);
- /* 'dns' is really __nameserver[] which is a global that
- needs to hold __resolv_lock before access!! */
- sa.sin_addr.s_addr = inet_addr(dns);
- __UCLIBC_MUTEX_UNLOCK(__resolv_lock);
- rc = connect(fd, (struct sockaddr *) &sa, sizeof(sa));
+ sa.sin_family = AF_INET;
+ sa.sin_port = htons(NAMESERVER_PORT);
+ __UCLIBC_MUTEX_LOCK(__resolv_lock);
+ /* 'dns' is really __nameserver[] which is a global that
+ needs to hold __resolv_lock before access!! */
+ sa.sin_addr.s_addr = inet_addr(dns);
+ __UCLIBC_MUTEX_UNLOCK(__resolv_lock);
+ rc = connect(fd, (struct sockaddr *) &sa, sizeof(sa));
#ifdef __UCLIBC_HAS_IPV6__
}
#endif
if (rc < 0) {
- if (errno == ENETUNREACH) {
+ if (errno == ENETUNREACH) {
/* routing error, presume not transient */
goto tryall;
- } else
+ } else {
/* retry */
retries++;
+ }
continue;
}
@@ -848,7 +848,7 @@ int attribute_hidden __dns_lookup(const char *name, int type, int nscount, char
tv.tv_sec = REPLY_TIMEOUT;
tv.tv_usec = 0;
if (select(fd + 1, &fds, NULL, NULL, &tv) <= 0) {
- DPRINTF("Timeout\n");
+ DPRINTF("Timeout\n");
/* timed out, so retry send and receive,
* to next nameserver on queue */
@@ -870,7 +870,6 @@ int attribute_hidden __dns_lookup(const char *name, int type, int nscount, char
goto again;
}
-
DPRINTF("Got response %s\n", "(i think)!");
DPRINTF("qrcount=%d,ancount=%d,nscount=%d,arcount=%d\n",
h.qdcount, h.ancount, h.nscount, h.arcount);
@@ -895,56 +894,44 @@ int attribute_hidden __dns_lookup(const char *name, int type, int nscount, char
DPRINTF("Decoding answer at pos %d\n", pos);
first_answer = 1;
- for (j=0;j<h.ancount;j++,pos += i)
- {
- i = __decode_answer(packet, pos, &ma);
+ for (j = 0; j < h.ancount; j++, pos += i) {
+ i = __decode_answer(packet, pos, &ma);
+
+ if (i < 0) {
+ DPRINTF("failed decode %d\n", i);
+ goto again;
+ }
- if (i<0) {
- DPRINTF("failed decode %d\n", i);
+ if (first_answer) {
+ ma.buf = a->buf;
+ ma.buflen = a->buflen;
+ ma.add_count = a->add_count;
+ memcpy(a, &ma, sizeof(ma));
+ if (a->atype != T_SIG && (0 == a->buf || (type != T_A && type != T_AAAA)))
+ break;
+ if (a->atype != type) {
+ free(a->dotted);
+ continue;
+ }
+ a->add_count = h.ancount - j - 1;
+ if ((a->rdlength + sizeof(struct in_addr*)) * a->add_count > a->buflen)
+ break;
+ a->add_count = 0;
+ first_answer = 0;
+ } else {
+ free(ma.dotted);
+ if (ma.atype != type)
+ continue;
+ if (a->rdlength != ma.rdlength) {
+ free(a->dotted);
+ DPRINTF("Answer address len(%u) differs from original(%u)\n",
+ ma.rdlength, a->rdlength);
goto again;
}
-
- if ( first_answer )
- {
- ma.buf = a->buf;
- ma.buflen = a->buflen;
- ma.add_count = a->add_count;
- memcpy(a, &ma, sizeof(ma));
- if (a->atype != T_SIG && (0 == a->buf || (type != T_A && type != T_AAAA)))
- {
- break;
- }
- if (a->atype != type)
- {
- free(a->dotted);
- continue;
- }
- a->add_count = h.ancount - j - 1;
- if ((a->rdlength + sizeof(struct in_addr*)) * a->add_count > a->buflen)
- {
- break;
- }
- a->add_count = 0;
- first_answer = 0;
- }
- else
- {
- free(ma.dotted);
- if (ma.atype != type)
- {
- continue;
- }
- if (a->rdlength != ma.rdlength)
- {
- free(a->dotted);
- DPRINTF("Answer address len(%u) differs from original(%u)\n",
- ma.rdlength, a->rdlength);
- goto again;
- }
- memcpy(a->buf + (a->add_count * ma.rdlength), ma.rdata, ma.rdlength);
- ++a->add_count;
- }
+ memcpy(a->buf + (a->add_count * ma.rdlength), ma.rdata, ma.rdlength);
+ ++a->add_count;
}
+ }
DPRINTF("Answer name = |%s|\n", a->dotted);
DPRINTF("Answer type = |%d|\n", a->atype);
@@ -969,7 +956,7 @@ int attribute_hidden __dns_lookup(const char *name, int type, int nscount, char
/* if there are other nameservers, give them a go,
otherwise return with error */
{
- variant = -1;
+ variant = -1;
local_ns = (local_ns + 1) % nscount;
if (local_ns == 0)
retries++;
@@ -980,39 +967,39 @@ int attribute_hidden __dns_lookup(const char *name, int type, int nscount, char
again:
/* if there are searchdomains, try them or fallback as passed */
{
- int sdomains;
- __UCLIBC_MUTEX_LOCK(__resolv_lock);
- sdomains=__searchdomains;
- __UCLIBC_MUTEX_UNLOCK(__resolv_lock);
+ int sdomains;
+ __UCLIBC_MUTEX_LOCK(__resolv_lock);
+ sdomains = __searchdomains;
+ __UCLIBC_MUTEX_UNLOCK(__resolv_lock);
- if (variant < sdomains - 1) {
+ if (variant < sdomains - 1) {
/* next search */
variant++;
- } else {
+ } else {
/* next server, first search */
local_ns = (local_ns + 1) % nscount;
if (local_ns == 0)
retries++;
variant = -1;
- }
+ }
}
}
fail:
if (fd != -1)
- close(fd);
+ close(fd);
if (lookup)
- free(lookup);
+ free(lookup);
if (packet)
- free(packet);
+ free(packet);
h_errno = NETDB_INTERNAL;
/* Mess with globals while under lock */
if (local_ns != -1) {
- __UCLIBC_MUTEX_LOCK(mylock);
- ns = local_ns;
- id = local_id;
- __UCLIBC_MUTEX_UNLOCK(mylock);
+ __UCLIBC_MUTEX_LOCK(mylock);
+ ns = local_ns;
+ id = local_id;
+ __UCLIBC_MUTEX_UNLOCK(mylock);
}
return -1;
}
@@ -1044,52 +1031,51 @@ void attribute_hidden __open_nameservers()
/* int rv = 0; */
__UCLIBC_MUTEX_LOCK(__resolv_lock);
- if (__nameservers > 0) {
+ if (__nameservers > 0)
goto DONE;
- }
if ((fp = fopen("/etc/resolv.conf", "r")) ||
(fp = fopen("/etc/config/resolv.conf", "r")))
- {
+ {
- while (fgets(szBuffer, sizeof(szBuffer), fp) != NULL) {
+ while (fgets(szBuffer, sizeof(szBuffer), fp) != NULL) {
- for (p = szBuffer; *p && isspace(*p); p++)
- /* skip white space */;
- if (*p == '\0' || *p == '\n' || *p == '#') /* skip comments etc */
- continue;
- argc = 0;
- while (*p && argc < RESOLV_ARGS) {
- argv[argc++] = p;
- while (*p && !isspace(*p) && *p != '\n')
- p++;
- while (*p && (isspace(*p) || *p == '\n')) /* remove spaces */
- *p++ = '\0';
- }
+ for (p = szBuffer; *p && isspace(*p); p++)
+ /* skip white space */;
+ if (*p == '\0' || *p == '\n' || *p == '#') /* skip comments etc */
+ continue;
+ argc = 0;
+ while (*p && argc < RESOLV_ARGS) {
+ argv[argc++] = p;
+ while (*p && !isspace(*p) && *p != '\n')
+ p++;
+ while (*p && (isspace(*p) || *p == '\n')) /* remove spaces */
+ *p++ = '\0';
+ }
- if (strcmp(argv[0], "nameserver") == 0) {
- for (i = 1; i < argc && __nameservers < MAX_SERVERS; i++) {
- __nameserver[__nameservers++] = strdup(argv[i]);
- DPRINTF("adding nameserver %s\n", argv[i]);
- }
+ if (strcmp(argv[0], "nameserver") == 0) {
+ for (i = 1; i < argc && __nameservers < MAX_SERVERS; i++) {
+ __nameserver[__nameservers++] = strdup(argv[i]);
+ DPRINTF("adding nameserver %s\n", argv[i]);
}
+ }
- /* domain and search are mutually exclusive, the last one wins */
- if (strcmp(argv[0],"domain")==0 || strcmp(argv[0],"search")==0) {
- while (__searchdomains > 0) {
- free(__searchdomain[--__searchdomains]);
- __searchdomain[__searchdomains] = NULL;
- }
- for (i=1; i < argc && __searchdomains < MAX_SEARCH; i++) {
- __searchdomain[__searchdomains++] = strdup(argv[i]);
- DPRINTF("adding search %s\n", argv[i]);
- }
+ /* domain and search are mutually exclusive, the last one wins */
+ if (strcmp(argv[0],"domain") == 0 || strcmp(argv[0],"search") == 0) {
+ while (__searchdomains > 0) {
+ free(__searchdomain[--__searchdomains]);
+ __searchdomain[__searchdomains] = NULL;
+ }
+ for (i = 1; i < argc && __searchdomains < MAX_SEARCH; i++) {
+ __searchdomain[__searchdomains++] = strdup(argv[i]);
+ DPRINTF("adding search %s\n", argv[i]);
}
}
- fclose(fp);
- DPRINTF("nameservers = %d\n", __nameservers);
- goto DONE;
}
+ fclose(fp);
+ DPRINTF("nameservers = %d\n", __nameservers);
+ goto DONE;
+ }
DPRINTF("failed to open %s\n", "resolv.conf");
h_errno = NO_RECOVERY;
@@ -1192,17 +1178,16 @@ int res_init(void)
/** rp->rhook = NULL; **/
/** rp->_u._ext.nsinit = 0; **/
- if(__searchdomains) {
+ if (__searchdomains) {
int i;
- for(i=0; i<__searchdomains; i++) {
+ for (i = 0; i < __searchdomains; i++)
rp->dnsrch[i] = __searchdomain[i];
- }
}
- if(__nameservers) {
+ if (__nameservers) {
int i;
struct in_addr a;
- for(i=0; i<__nameservers; i++) {
+ for (i = 0; i < __nameservers; i++) {
if (inet_aton(__nameserver[i], &a)) {
rp->nsaddr_list[i].sin_addr = a;
rp->nsaddr_list[i].sin_family = AF_INET;
@@ -1213,7 +1198,7 @@ int res_init(void)
rp->nscount = __nameservers;
__UCLIBC_MUTEX_UNLOCK(__resolv_lock);
- return(0);
+ return 0;
}
libc_hidden_def(res_init)
@@ -1252,8 +1237,8 @@ int res_query(const char *dname, int class, int type,
memset((char *) &a, '\0', sizeof(a));
__UCLIBC_MUTEX_LOCK(__resolv_lock);
- __nameserversXX=__nameservers;
- __nameserverXX=__nameserver;
+ __nameserversXX = __nameservers;
+ __nameserverXX = __nameserver;
__UCLIBC_MUTEX_UNLOCK(__resolv_lock);
i = __dns_lookup(dname, type, __nameserversXX, __nameserverXX, &packet, &a);
@@ -1466,7 +1451,7 @@ int res_querydomain(name, domain, class, type, answer, anslen)
__UCLIBC_MUTEX_UNLOCK(__resolv_lock);
if (_res_options & RES_DEBUG)
printf(";; res_querydomain(%s, %s, %d, %d)\n",
- name, domain?domain:"<Nil>", class, type);
+ name, (domain ? domain : "<Nil>"), class, type);
#endif
if (domain == NULL) {
/*
@@ -1544,55 +1529,55 @@ int attribute_hidden __read_etc_hosts_r(FILE * fp, const char * name, int type,
struct hostent ** result,
int * h_errnop)
{
- struct in_addr *in=NULL;
- struct in_addr **addr_list=NULL;
+ struct in_addr *in = NULL;
+ struct in_addr **addr_list = NULL;
#ifdef __UCLIBC_HAS_IPV6__
- struct in6_addr *in6=NULL;
- struct in6_addr **addr_list6=NULL;
+ struct in6_addr *in6 = NULL;
+ struct in6_addr **addr_list6 =NULL;
#endif /* __UCLIBC_HAS_IPV6__ */
char *cp, **alias;
- int aliases, i, ret=HOST_NOT_FOUND;
+ int aliases, i, ret = HOST_NOT_FOUND;
if (buflen < sizeof(char *)*(ALIAS_DIM))
return ERANGE;
- alias=(char **)buf;
- buf+=sizeof(char **)*(ALIAS_DIM);
- buflen-=sizeof(char **)*(ALIAS_DIM);
+ alias = (char **)buf;
+ buf += sizeof(char **)*(ALIAS_DIM);
+ buflen -= sizeof(char **)*(ALIAS_DIM);
- if (action!=GETHOSTENT) {
+ if (action != GETHOSTENT) {
#ifdef __UCLIBC_HAS_IPV6__
- char *p=buf;
- size_t len=buflen;
+ char *p = buf;
+ size_t len = buflen;
#endif /* __UCLIBC_HAS_IPV6__ */
- *h_errnop=NETDB_INTERNAL;
+ *h_errnop = NETDB_INTERNAL;
if (buflen < sizeof(*in))
return ERANGE;
- in=(struct in_addr*)buf;
- buf+=sizeof(*in);
- buflen-=sizeof(*in);
+ in = (struct in_addr*)buf;
+ buf += sizeof(*in);
+ buflen -= sizeof(*in);
if (buflen < sizeof(*addr_list)*2)
return ERANGE;
- addr_list=(struct in_addr **)buf;
- buf+=sizeof(*addr_list)*2;
- buflen-=sizeof(*addr_list)*2;
+ addr_list = (struct in_addr **)buf;
+ buf += sizeof(*addr_list)*2;
+ buflen -= sizeof(*addr_list)*2;
#ifdef __UCLIBC_HAS_IPV6__
if (len < sizeof(*in6))
return ERANGE;
- in6=(struct in6_addr*)p;
- p+=sizeof(*in6);
- len-=sizeof(*in6);
+ in6 = (struct in6_addr*)p;
+ p += sizeof(*in6);
+ len -= sizeof(*in6);
if (len < sizeof(*addr_list6)*2)
return ERANGE;
- addr_list6=(struct in6_addr**)p;
- p+=sizeof(*addr_list6)*2;
- len-=sizeof(*addr_list6)*2;
+ addr_list6 = (struct in6_addr**)p;
+ p += sizeof(*addr_list6)*2;
+ len -= sizeof(*addr_list6)*2;
if (len < buflen) {
- buflen=len;
- buf=p;
+ buflen = len;
+ buf = p;
}
#endif /* __UCLIBC_HAS_IPV6__ */
@@ -1601,12 +1586,12 @@ int attribute_hidden __read_etc_hosts_r(FILE * fp, const char * name, int type,
__open_etc_hosts(&fp);
if (fp == NULL) {
- result=NULL;
+ result = NULL;
return errno;
}
}
- *h_errnop=HOST_NOT_FOUND;
+ *h_errnop = HOST_NOT_FOUND;
while (fgets(buf, buflen, fp)) {
if ((cp = strchr(buf, '#')))
*cp = '\0';
@@ -1629,10 +1614,10 @@ int attribute_hidden __read_etc_hosts_r(FILE * fp, const char * name, int type,
if (aliases < 2)
continue; /* syntax error really */
- if (action==GETHOSTENT) {
+ if (action == GETHOSTENT) {
/* Return whatever the next entry happens to be. */
break;
- } else if (action==GET_HOSTS_BYADDR) {
+ } else if (action == GET_HOSTS_BYADDR) {
if (strcmp(name, alias[0]) != 0)
continue;
} else {
@@ -1653,10 +1638,10 @@ int attribute_hidden __read_etc_hosts_r(FILE * fp, const char * name, int type,
result_buf->h_length = sizeof(*in);
result_buf->h_addr_list = (char**) addr_list;
result_buf->h_aliases = alias + 2;
- *result=result_buf;
- ret=NETDB_SUCCESS;
+ *result = result_buf;
+ ret = NETDB_SUCCESS;
#ifdef __UCLIBC_HAS_IPV6__
- } else if (type == AF_INET6 && inet_pton(AF_INET6, alias[0], in6) > 0) {
+ } else if (type == AF_INET6 && inet_pton(AF_INET6, alias[0], in6) > 0) {
DPRINTF("Found INET6\n");
addr_list6[0] = in6;
addr_list6[1] = 0;
@@ -1665,23 +1650,21 @@ int attribute_hidden __read_etc_hosts_r(FILE * fp, const char * name, int type,
result_buf->h_length = sizeof(*in6);
result_buf->h_addr_list = (char**) addr_list6;
result_buf->h_aliases = alias + 2;
- *result=result_buf;
- ret=NETDB_SUCCESS;
+ *result = result_buf;
+ ret = NETDB_SUCCESS;
#endif /* __UCLIBC_HAS_IPV6__ */
} else {
DPRINTF("Error\n");
- ret=TRY_AGAIN;
+ ret = TRY_AGAIN;
break; /* bad ip address */
- }
+ }
- if (action!=GETHOSTENT) {
+ if (action != GETHOSTENT)
fclose(fp);
- }
return ret;
}
- if (action!=GETHOSTENT) {
+ if (action != GETHOSTENT)
fclose(fp);
- }
return ret;
}
#endif
@@ -1695,52 +1678,50 @@ static FILE * __gethostent_fp;
void endhostent (void)
{
- __UCLIBC_MUTEX_LOCK(mylock);
- __stay_open = 0;
- if (__gethostent_fp) {
- fclose(__gethostent_fp);
- }
- __UCLIBC_MUTEX_UNLOCK(mylock);
+ __UCLIBC_MUTEX_LOCK(mylock);
+ __stay_open = 0;
+ if (__gethostent_fp)
+ fclose(__gethostent_fp);
+ __UCLIBC_MUTEX_UNLOCK(mylock);
}
void sethostent (int stay_open)
{
- __UCLIBC_MUTEX_LOCK(mylock);
- __stay_open = stay_open;
- __UCLIBC_MUTEX_UNLOCK(mylock);
+ __UCLIBC_MUTEX_LOCK(mylock);
+ __stay_open = stay_open;
+ __UCLIBC_MUTEX_UNLOCK(mylock);
}
int gethostent_r(struct hostent *result_buf, char *buf, size_t buflen,
struct hostent **result, int *h_errnop)
{
- int ret;
+ int ret;
- __UCLIBC_MUTEX_LOCK(mylock);
- if (__gethostent_fp == NULL) {
- __open_etc_hosts(&__gethostent_fp);
+ __UCLIBC_MUTEX_LOCK(mylock);
if (__gethostent_fp == NULL) {
- *result = NULL;
- ret = TRY_AGAIN;
- goto DONE;
+ __open_etc_hosts(&__gethostent_fp);
+ if (__gethostent_fp == NULL) {
+ *result = NULL;
+ ret = TRY_AGAIN;
+ goto DONE;
+ }
}
- }
- ret = __read_etc_hosts_r(__gethostent_fp, NULL, AF_INET, GETHOSTENT,
+ ret = __read_etc_hosts_r(__gethostent_fp, NULL, AF_INET, GETHOSTENT,
result_buf, buf, buflen, result, h_errnop);
- if (__stay_open == 0) {
- fclose(__gethostent_fp);
- }
+ if (__stay_open == 0)
+ fclose(__gethostent_fp);
DONE:
- __UCLIBC_MUTEX_UNLOCK(mylock);
- return(ret);
+ __UCLIBC_MUTEX_UNLOCK(mylock);
+ return ret;
}
libc_hidden_def(gethostent_r)
struct hostent *gethostent (void)
{
- static struct {
- struct hostent h;
- char buf[
+ static struct {
+ struct hostent h;
+ char buf[
#ifndef __UCLIBC_HAS_IPV6__
sizeof(struct in_addr) + sizeof(struct in_addr *)*2 +
#else
@@ -1748,15 +1729,15 @@ struct hostent *gethostent (void)
#endif /* __UCLIBC_HAS_IPV6__ */
sizeof(char *)*(ALIAS_DIM) +
80/*namebuffer*/ + 2/* margin */];
- } *sp;
- struct hostent *host;
-
- free(sp);
- sp = __uc_malloc(sizeof(*sp));
- __UCLIBC_MUTEX_LOCK(mylock);
- gethostent_r(&sp->h, sp->buf, sizeof(sp->buf), &host, &h_errno);
- __UCLIBC_MUTEX_UNLOCK(mylock);
- return(host);
+ } *sp;
+ struct hostent *host;
+
+ free(sp);
+ sp = __uc_malloc(sizeof(*sp));
+ __UCLIBC_MUTEX_LOCK(mylock);
+ gethostent_r(&sp->h, sp->buf, sizeof(sp->buf), &host, &h_errno);
+ __UCLIBC_MUTEX_UNLOCK(mylock);
+ return host;
}
#endif
@@ -1768,8 +1749,8 @@ int attribute_hidden __get_hosts_byname_r(const char * name, int type,
struct hostent ** result,
int * h_errnop)
{
- return(__read_etc_hosts_r(NULL, name, type, GET_HOSTS_BYNAME,
- result_buf, buf, buflen, result, h_errnop));
+ return __read_etc_hosts_r(NULL, name, type, GET_HOSTS_BYNAME,
+ result_buf, buf, buflen, result, h_errnop);
}
#endif
@@ -1787,7 +1768,7 @@ int attribute_hidden __get_hosts_byaddr_r(const char * addr, int len, int type,
char ipaddr[INET6_ADDRSTRLEN];
#endif /* __UCLIBC_HAS_IPV6__ */
- switch (type) {
+ switch (type) {
case AF_INET:
if (len != sizeof(struct in_addr))
return 0;
@@ -1860,7 +1841,7 @@ BAD_FAM:
sizeof(struct in6_addr), AF_INET6);
else
#endif /* __UCLIBC_HAS_IPV6__ */
- h = gethostbyaddr ((const void *) &(((const struct sockaddr_in *)sa)->sin_addr),
+ h = gethostbyaddr ((const void *) &(((const struct sockaddr_in *)sa)->sin_addr),
sizeof(struct in_addr), AF_INET);
if (h) {
@@ -2017,7 +1998,7 @@ int gethostbyname_r(const char * name,
char ** __nameserverXX;
__open_nameservers();
- *result=NULL;
+ *result = NULL;
if (!name)
return EINVAL;
@@ -2026,8 +2007,8 @@ int gethostbyname_r(const char * name,
int old_errno = errno; /* Save the old errno and reset errno */
__set_errno(0); /* to check for missing /etc/hosts. */
- if ((i=__get_hosts_byname_r(name, AF_INET, result_buf,
- buf, buflen, result, h_errnop))==0)
+ if ((i = __get_hosts_byname_r(name, AF_INET, result_buf,
+ buf, buflen, result, h_errnop)) == 0)
return i;
switch (*h_errnop) {
case HOST_NOT_FOUND:
@@ -2049,26 +2030,26 @@ int gethostbyname_r(const char * name,
*h_errnop = NETDB_INTERNAL;
if (buflen < sizeof(*in))
return ERANGE;
- in=(struct in_addr*)buf;
- buf+=sizeof(*in);
- buflen-=sizeof(*in);
+ in = (struct in_addr*)buf;
+ buf += sizeof(*in);
+ buflen -= sizeof(*in);
if (buflen < sizeof(*addr_list)*2)
return ERANGE;
- addr_list=(struct in_addr**)buf;
- buf+=sizeof(*addr_list)*2;
- buflen-=sizeof(*addr_list)*2;
+ addr_list = (struct in_addr**)buf;
+ buf += sizeof(*addr_list)*2;
+ buflen -= sizeof(*addr_list)*2;
addr_list[0] = in;
addr_list[1] = 0;
if (buflen < sizeof(char *)*(ALIAS_DIM))
return ERANGE;
- alias=(char **)buf;
- buf+=sizeof(char **)*(ALIAS_DIM);
- buflen-=sizeof(char **)*(ALIAS_DIM);
+ alias = (char **)buf;
+ buf += sizeof(char **)*(ALIAS_DIM);
+ buflen -= sizeof(char **)*(ALIAS_DIM);
- if (buflen<256)
+ if (buflen < 256)
return ERANGE;
strncpy(buf, name, buflen);
@@ -2077,57 +2058,54 @@ int gethostbyname_r(const char * name,
/* First check if this is already an address */
if (inet_aton(name, in)) {
- result_buf->h_name = buf;
- result_buf->h_addrtype = AF_INET;
- result_buf->h_length = sizeof(*in);
- result_buf->h_addr_list = (char **) addr_list;
- result_buf->h_aliases = alias;
- *result=result_buf;
- *h_errnop = NETDB_SUCCESS;
- return NETDB_SUCCESS;
+ result_buf->h_name = buf;
+ result_buf->h_addrtype = AF_INET;
+ result_buf->h_length = sizeof(*in);
+ result_buf->h_addr_list = (char **) addr_list;
+ result_buf->h_aliases = alias;
+ *result = result_buf;
+ *h_errnop = NETDB_SUCCESS;
+ return NETDB_SUCCESS;
}
for (;;) {
- __UCLIBC_MUTEX_LOCK(__resolv_lock);
- __nameserversXX=__nameservers;
- __nameserverXX=__nameserver;
- __UCLIBC_MUTEX_UNLOCK(__resolv_lock);
- a.buf = buf;
- a.buflen = buflen;
- a.add_count = 0;
- i = __dns_lookup(name, T_A, __nameserversXX, __nameserverXX, &packet, &a);
+ __UCLIBC_MUTEX_LOCK(__resolv_lock);
+ __nameserversXX = __nameservers;
+ __nameserverXX = __nameserver;
+ __UCLIBC_MUTEX_UNLOCK(__resolv_lock);
+ a.buf = buf;
+ a.buflen = buflen;
+ a.add_count = 0;
+ i = __dns_lookup(name, T_A, __nameserversXX, __nameserverXX, &packet, &a);
- if (i < 0) {
+ if (i < 0) {
*h_errnop = HOST_NOT_FOUND;
DPRINTF("__dns_lookup\n");
return TRY_AGAIN;
- }
-
- if ((a.rdlength + sizeof(struct in_addr*)) * a.add_count + 256 > buflen)
- {
- free(a.dotted);
- free(packet);
- *h_errnop = NETDB_INTERNAL;
- DPRINTF("buffer too small for all addresses\n");
- return ERANGE;
- }
- else if(a.add_count > 0)
- {
- memmove(buf - sizeof(struct in_addr*)*2, buf, a.add_count * a.rdlength);
- addr_list = (struct in_addr**)(buf + a.add_count * a.rdlength);
- addr_list[0] = in;
- for (i = a.add_count-1; i>=0; --i)
- addr_list[i+1] = (struct in_addr*)(buf - sizeof(struct in_addr*)*2 + a.rdlength * i);
- addr_list[a.add_count + 1] = 0;
- buflen -= (((char*)&(addr_list[a.add_count + 2])) - buf);
- buf = (char*)&addr_list[a.add_count + 2];
- }
+ }
- strncpy(buf, a.dotted, buflen);
- free(a.dotted);
+ if ((a.rdlength + sizeof(struct in_addr*)) * a.add_count + 256 > buflen) {
+ free(a.dotted);
+ free(packet);
+ *h_errnop = NETDB_INTERNAL;
+ DPRINTF("buffer too small for all addresses\n");
+ return ERANGE;
+ } else if (a.add_count > 0) {
+ memmove(buf - sizeof(struct in_addr*)*2, buf, a.add_count * a.rdlength);
+ addr_list = (struct in_addr**)(buf + a.add_count * a.rdlength);
+ addr_list[0] = in;
+ for (i = a.add_count - 1; i >= 0; --i)
+ addr_list[i+1] = (struct in_addr*)(buf - sizeof(struct in_addr*)*2 + a.rdlength * i);
+ addr_list[a.add_count + 1] = 0;
+ buflen -= (((char*)&(addr_list[a.add_count + 2])) - buf);
+ buf = (char*)&addr_list[a.add_count + 2];
+ }
+
+ strncpy(buf, a.dotted, buflen);
+ free(a.dotted);
- if (a.atype == T_A) { /* ADDRESS */
+ if (a.atype == T_A) { /* ADDRESS */
memcpy(in, a.rdata, sizeof(*in));
result_buf->h_name = buf;
result_buf->h_addrtype = AF_INET;
@@ -2139,14 +2117,14 @@ int gethostbyname_r(const char * name,
result_buf->h_aliases = alias; /* TODO: generate the full list */
free(packet);
break;
- } else {
+ } else {
free(packet);
- *h_errnop=HOST_NOT_FOUND;
+ *h_errnop = HOST_NOT_FOUND;
return TRY_AGAIN;
- }
+ }
}
- *result=result_buf;
+ *result = result_buf;
*h_errnop = NETDB_SUCCESS;
return NETDB_SUCCESS;
}
@@ -2181,7 +2159,7 @@ int gethostbyname2_r(const char *name, int family,
return EINVAL;
__open_nameservers();
- *result=NULL;
+ *result = NULL;
if (!name)
return EINVAL;
@@ -2190,8 +2168,8 @@ int gethostbyname2_r(const char *name, int family,
int old_errno = errno; /* Save the old errno and reset errno */
__set_errno(0); /* to check for missing /etc/hosts. */
- if ((i=__get_hosts_byname_r(name, family, result_buf,
- buf, buflen, result, h_errnop))==0)
+ if ((i = __get_hosts_byname_r(name, family, result_buf,
+ buf, buflen, result, h_errnop)) == 0)
return i;
switch (*h_errnop) {
case HOST_NOT_FOUND:
@@ -2213,40 +2191,40 @@ int gethostbyname2_r(const char *name, int family,
*h_errnop = NETDB_INTERNAL;
if (buflen < sizeof(*in))
return ERANGE;
- in=(struct in6_addr*)buf;
- buf+=sizeof(*in);
- buflen-=sizeof(*in);
+ in = (struct in6_addr*)buf;
+ buf += sizeof(*in);
+ buflen -= sizeof(*in);
if (buflen < sizeof(*addr_list)*2)
return ERANGE;
- addr_list=(struct in6_addr**)buf;
- buf+=sizeof(*addr_list)*2;
- buflen-=sizeof(*addr_list)*2;
+ addr_list = (struct in6_addr**)buf;
+ buf += sizeof(*addr_list)*2;
+ buflen -= sizeof(*addr_list)*2;
addr_list[0] = in;
addr_list[1] = 0;
- if (buflen<256)
+ if (buflen < 256)
return ERANGE;
strncpy(buf, name, buflen);
/* First check if this is already an address */
if (inet_pton(AF_INET6, name, in)) {
- result_buf->h_name = buf;
- result_buf->h_addrtype = AF_INET6;
- result_buf->h_length = sizeof(*in);
- result_buf->h_addr_list = (char **) addr_list;
- *result=result_buf;
- *h_errnop = NETDB_SUCCESS;
- return NETDB_SUCCESS;
+ result_buf->h_name = buf;
+ result_buf->h_addrtype = AF_INET6;
+ result_buf->h_length = sizeof(*in);
+ result_buf->h_addr_list = (char **) addr_list;
+ *result = result_buf;
+ *h_errnop = NETDB_SUCCESS;
+ return NETDB_SUCCESS;
}
memset((char *) &a, '\0', sizeof(a));
for (;;) {
__UCLIBC_MUTEX_LOCK(__resolv_lock);
- __nameserversXX=__nameservers;
- __nameserverXX=__nameserver;
+ __nameserversXX = __nameservers;
+ __nameserverXX = __nameserver;
__UCLIBC_MUTEX_UNLOCK(__resolv_lock);
i = __dns_lookup(buf, T_AAAA, __nameserversXX, __nameserverXX, &packet, &a);
@@ -2283,12 +2261,12 @@ int gethostbyname2_r(const char *name, int family,
break;
} else {
free(packet);
- *h_errnop=HOST_NOT_FOUND;
+ *h_errnop = HOST_NOT_FOUND;
return TRY_AGAIN;
}
}
- *result=result_buf;
+ *result = result_buf;
*h_errnop = NETDB_SUCCESS;
return NETDB_SUCCESS;
#endif /* __UCLIBC_HAS_IPV6__ */
@@ -2320,7 +2298,7 @@ int gethostbyaddr_r (const void *addr, socklen_t len, int type,
int __nameserversXX;
char ** __nameserverXX;
- *result=NULL;
+ *result = NULL;
if (!addr)
return EINVAL;
@@ -2342,8 +2320,8 @@ int gethostbyaddr_r (const void *addr, socklen_t len, int type,
}
/* do /etc/hosts first */
- if ((i=__get_hosts_byaddr_r(addr, len, type, result_buf,
- buf, buflen, result, h_errnop))==0)
+ if ((i = __get_hosts_byaddr_r(addr, len, type, result_buf,
+ buf, buflen, result, h_errnop)) == 0)
return i;
switch (*h_errnop) {
case HOST_NOT_FOUND:
@@ -2356,52 +2334,52 @@ int gethostbyaddr_r (const void *addr, socklen_t len, int type,
__open_nameservers();
#ifdef __UCLIBC_HAS_IPV6__
- qp=buf;
- plen=buflen;
+ qp = buf;
+ plen = buflen;
#endif /* __UCLIBC_HAS_IPV6__ */
*h_errnop = NETDB_INTERNAL;
if (buflen < sizeof(*in))
return ERANGE;
- in=(struct in_addr*)buf;
- buf+=sizeof(*in);
- buflen-=sizeof(*in);
+ in = (struct in_addr*)buf;
+ buf += sizeof(*in);
+ buflen -= sizeof(*in);
if (buflen < sizeof(*addr_list)*2)
return ERANGE;
- addr_list=(struct in_addr**)buf;
- buf+=sizeof(*addr_list)*2;
- buflen-=sizeof(*addr_list)*2;
+ addr_list = (struct in_addr**)buf;
+ buf += sizeof(*addr_list)*2;
+ buflen -= sizeof(*addr_list)*2;
if (buflen < sizeof(char *)*(ALIAS_DIM))
return ERANGE;
- alias=(char **)buf;
- buf+=sizeof(*alias)*(ALIAS_DIM);
- buflen-=sizeof(*alias)*(ALIAS_DIM);
+ alias = (char **)buf;
+ buf += sizeof(*alias)*(ALIAS_DIM);
+ buflen -= sizeof(*alias)*(ALIAS_DIM);
#ifdef __UCLIBC_HAS_IPV6__
if (plen < sizeof(*in6))
return ERANGE;
- in6=(struct in6_addr*)qp;
- qp+=sizeof(*in6);
- plen-=sizeof(*in6);
+ in6 = (struct in6_addr*)qp;
+ qp += sizeof(*in6);
+ plen -= sizeof(*in6);
if (plen < sizeof(*addr_list6)*2)
return ERANGE;
- addr_list6=(struct in6_addr**)qp;
- qp+=sizeof(*addr_list6)*2;
- plen-=sizeof(*addr_list6)*2;
+ addr_list6 = (struct in6_addr**)qp;
+ qp += sizeof(*addr_list6)*2;
+ plen -= sizeof(*addr_list6)*2;
if (plen < buflen) {
- buflen=plen;
- buf=qp;
+ buflen = plen;
+ buf = qp;
}
#endif /* __UCLIBC_HAS_IPV6__ */
- if (buflen<256)
+ if (buflen < 256)
return ERANGE;
- if(type == AF_INET) {
+ if (type == AF_INET) {
unsigned char *tmp_addr = (unsigned char *)addr;
memcpy(&in->s_addr, addr, len);
@@ -2433,8 +2411,8 @@ int gethostbyaddr_r (const void *addr, socklen_t len, int type,
for (;;) {
__UCLIBC_MUTEX_LOCK(__resolv_lock);
- __nameserversXX=__nameservers;
- __nameserverXX=__nameserver;
+ __nameserversXX = __nameservers;
+ __nameserverXX = __nameserver;
__UCLIBC_MUTEX_UNLOCK(__resolv_lock);
i = __dns_lookup(buf, T_PTR, __nameserversXX, __nameserverXX, &packet, &a);
@@ -2467,7 +2445,7 @@ int gethostbyaddr_r (const void *addr, socklen_t len, int type,
result_buf->h_name = buf;
result_buf->h_addrtype = type;
- if(type == AF_INET) {
+ if (type == AF_INET) {
result_buf->h_length = sizeof(*in);
#ifdef __UCLIBC_HAS_IPV6__
} else {
@@ -2485,7 +2463,7 @@ int gethostbyaddr_r (const void *addr, socklen_t len, int type,
}
}
- *result=result_buf;
+ *result = result_buf;
*h_errnop = NETDB_SUCCESS;
return NETDB_SUCCESS;
}
@@ -2534,15 +2512,15 @@ static int printable(int ch)
static int special(int ch)
{
switch (ch) {
- case 0x22: /* '"' */
- case 0x2E: /* '.' */
- case 0x3B: /* ';' */
- case 0x5C: /* '\\' */
+ case 0x22: /* '"' */
+ case 0x2E: /* '.' */
+ case 0x3B: /* ';' */
+ case 0x5C: /* '\\' */
/* Special modifiers in zone files. */
- case 0x40: /* '@' */
- case 0x24: /* '$' */
+ case 0x40: /* '@' */
+ case 0x24: /* '$' */
return (1);
- default:
+ default:
return (0);
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-18 02:00:48 +0000