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authorDenis Vlasenko <vda.linux@googlemail.com>2008-06-06 07:25:12 +0000
committerDenis Vlasenko <vda.linux@googlemail.com>2008-06-06 07:25:12 +0000
commit558bc289b787fc95146a81daf39a30fd72f9402b (patch)
tree38e18a8c0d1114f5c5535a7d60e3408bdda8ce0a /libc
parentc98a59e5a5900982d17f8e3709e940b8bf83bb4b (diff)
Use more natural way to return a value in __read_etc_hosts_r:
text data bss dec hex filename - 230 0 9 239 ef libc/inet/gethostent.o + 224 0 9 233 e9 libc/inet/gethostent.o - 782 0 0 782 30e libc/inet/read_etc_hosts_r.o + 767 0 0 767 2ff libc/inet/read_etc_hosts_r.o Run tested.
Diffstat (limited to 'libc')
-rw-r--r--libc/inet/resolv.c45
1 files changed, 21 insertions, 24 deletions
diff --git a/libc/inet/resolv.c b/libc/inet/resolv.c
index 4837bf9f7..dc53934e1 100644
--- a/libc/inet/resolv.c
+++ b/libc/inet/resolv.c
@@ -307,7 +307,7 @@ extern int __get_hosts_byaddr_r(const char * addr, int len, int type,
char * buf, size_t buflen,
struct hostent ** result,
int * h_errnop) attribute_hidden;
-extern void __open_etc_hosts(FILE **fp) attribute_hidden;
+extern FILE * __open_etc_hosts(void) attribute_hidden;
extern int __read_etc_hosts_r(FILE *fp, const char * name, int type,
enum etc_hosts_action action,
struct hostent * result_buf,
@@ -1080,9 +1080,7 @@ void attribute_hidden __open_nameservers(void)
if ((fp = fopen("/etc/resolv.conf", "r")) ||
(fp = fopen("/etc/config/resolv.conf", "r")))
{
-
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 */
@@ -1156,7 +1154,7 @@ struct hostent *gethostbyname(const char *name)
struct hostent h;
char buf[sizeof(struct in_addr) +
sizeof(struct in_addr *)*2 +
- sizeof(char *)*(ALIAS_DIM) + 384/*namebuffer*/ + 32/* margin */];
+ sizeof(char *)*ALIAS_DIM + 384/*namebuffer*/ + 32/* margin */];
} *sp;
struct hostent *hp;
@@ -1180,7 +1178,7 @@ struct hostent *gethostbyname2(const char *name, int family)
struct hostent h;
char buf[sizeof(struct in6_addr) +
sizeof(struct in6_addr *)*2 +
- sizeof(char *)*(ALIAS_DIM) + 384/*namebuffer*/ + 32/* margin */];
+ sizeof(char *)*ALIAS_DIM + 384/*namebuffer*/ + 32/* margin */];
} *sp;
struct hostent *hp;
@@ -1531,7 +1529,7 @@ struct hostent *gethostbyaddr (const void *addr, socklen_t len, int type)
#else
sizeof(struct in6_addr) + sizeof(struct in6_addr *)*2 +
#endif /* __UCLIBC_HAS_IPV6__ */
- sizeof(char *)*(ALIAS_DIM) + 384 /*namebuffer*/ + 32 /* margin */];
+ sizeof(char *)*ALIAS_DIM + 384 /*namebuffer*/ + 32 /* margin */];
} *sp;
struct hostent *hp;
@@ -1547,12 +1545,13 @@ libc_hidden_def(gethostbyaddr)
#ifdef L_read_etc_hosts_r
-void attribute_hidden __open_etc_hosts(FILE **fp)
+FILE * attribute_hidden __open_etc_hosts(void)
{
- if ((*fp = fopen("/etc/hosts", "r")) == NULL) {
- *fp = fopen("/etc/config/hosts", "r");
+ FILE * fp;
+ if ((fp = fopen("/etc/hosts", "r")) == NULL) {
+ fp = fopen("/etc/config/hosts", "r");
}
- return;
+ return fp;
}
int attribute_hidden __read_etc_hosts_r(FILE * fp, const char * name, int type,
@@ -1580,11 +1579,11 @@ int attribute_hidden __read_etc_hosts_r(FILE * fp, const char * name, int type,
buflen -= i;
}
- if (buflen < sizeof(char *)*(ALIAS_DIM))
+ if (buflen < sizeof(char *)*ALIAS_DIM)
return ERANGE;
alias = (char **)buf;
- buf += sizeof(char **)*(ALIAS_DIM);
- buflen -= sizeof(char **)*(ALIAS_DIM);
+ buf += sizeof(char **)*ALIAS_DIM;
+ buflen -= sizeof(char **)*ALIAS_DIM;
if (action != GETHOSTENT) {
#ifdef __UCLIBC_HAS_IPV6__
@@ -1626,7 +1625,7 @@ int attribute_hidden __read_etc_hosts_r(FILE * fp, const char * name, int type,
if (buflen < 80)
return ERANGE;
- __open_etc_hosts(&fp);
+ fp = __open_etc_hosts();
if (fp == NULL) {
result = NULL;
return errno;
@@ -1749,7 +1748,7 @@ int gethostent_r(struct hostent *result_buf, char *buf, size_t buflen,
__UCLIBC_MUTEX_LOCK(mylock);
if (__gethostent_fp == NULL) {
- __open_etc_hosts(&__gethostent_fp);
+ __gethostent_fp = __open_etc_hosts();
if (__gethostent_fp == NULL) {
*result = NULL;
ret = TRY_AGAIN;
@@ -1779,7 +1778,7 @@ struct hostent *gethostent(void)
#else
sizeof(struct in6_addr) + sizeof(struct in6_addr *)*2 +
#endif /* __UCLIBC_HAS_IPV6__ */
- sizeof(char *)*(ALIAS_DIM) +
+ sizeof(char *)*ALIAS_DIM +
80 /*namebuffer*/ + 2 /* margin */];
} *sp;
struct hostent *host;
@@ -2117,11 +2116,11 @@ int gethostbyname_r(const char * name,
addr_list[0] = in;
addr_list[1] = 0;
- if (buflen < sizeof(char *)*(ALIAS_DIM))
+ if (buflen < sizeof(char *)*ALIAS_DIM)
return ERANGE;
alias = (char **)buf;
- buf += sizeof(char **)*(ALIAS_DIM);
- buflen -= sizeof(char **)*(ALIAS_DIM);
+ buf += sizeof(char **)*ALIAS_DIM;
+ buflen -= sizeof(char **)*ALIAS_DIM;
if (buflen < 256)
return ERANGE;
@@ -2143,7 +2142,6 @@ int gethostbyname_r(const char * name,
}
for (;;) {
-
__UCLIBC_MUTEX_LOCK(__resolv_lock);
__nameserversXX = __nameservers;
__nameserverXX = __nameserver;
@@ -2426,11 +2424,11 @@ int gethostbyaddr_r(const void *addr, socklen_t len, int type,
buf += sizeof(*addr_list)*2;
buflen -= sizeof(*addr_list)*2;
- if (buflen < sizeof(char *)*(ALIAS_DIM))
+ if (buflen < sizeof(char *)*ALIAS_DIM)
return ERANGE;
alias = (char **)buf;
- buf += sizeof(*alias)*(ALIAS_DIM);
- buflen -= sizeof(*alias)*(ALIAS_DIM);
+ buf += sizeof(*alias)*ALIAS_DIM;
+ buflen -= sizeof(*alias)*ALIAS_DIM;
#ifdef __UCLIBC_HAS_IPV6__
if (plen < sizeof(*in6))
@@ -2484,7 +2482,6 @@ int gethostbyaddr_r(const void *addr, socklen_t len, int type,
alias[1] = 0;
for (;;) {
-
__UCLIBC_MUTEX_LOCK(__resolv_lock);
__nameserversXX = __nameservers;
__nameserverXX = __nameserver;