diff options
Diffstat (limited to 'lib/erl_interface/src/connect/ei_resolve.c')
| -rw-r--r-- | lib/erl_interface/src/connect/ei_resolve.c | 29 |
1 files changed, 20 insertions, 9 deletions
diff --git a/lib/erl_interface/src/connect/ei_resolve.c b/lib/erl_interface/src/connect/ei_resolve.c index fd0c659373..225fddc784 100644 --- a/lib/erl_interface/src/connect/ei_resolve.c +++ b/lib/erl_interface/src/connect/ei_resolve.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1997-2016. All Rights Reserved. + * Copyright Ericsson AB 1997-2018. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -57,9 +57,9 @@ #ifdef HAVE_GETHOSTBYNAME_R -void ei_init_resolve(void) +int ei_init_resolve(void) { - return; /* Do nothing */ + return 0; /* Do nothing */ } #else /* !HAVE_GETHOSTBYNAME_R */ @@ -103,7 +103,7 @@ static int verify_dns_configuration(void); * our own, which are just wrappers around hostGetByName() and * hostGetByAddr(). Here we look up the functions. */ -void ei_init_resolve(void) +int ei_init_resolve(void) { #ifdef VXWORKS @@ -134,9 +134,12 @@ void ei_init_resolve(void) #ifdef _REENTRANT ei_gethost_sem = ei_mutex_create(); + if (!ei_gethost_sem) + return ENOMEM; #endif /* _REENTRANT */ ei_resolve_initialized = 1; + return 0; } #ifdef VXWORKS @@ -312,9 +315,11 @@ static struct hostent *my_gethostbyname_r(const char *name, struct hostent *src; struct hostent *rval = NULL; - /* FIXME this should have been done in 'erl'_init()? */ - if (!ei_resolve_initialized) ei_init_resolve(); - + if (!ei_resolve_initialized) { + *h_errnop = NO_RECOVERY; + return NULL; + } + #ifdef _REENTRANT /* === BEGIN critical section === */ if (ei_mutex_lock(ei_gethost_sem,0) != 0) { @@ -377,7 +382,10 @@ static struct hostent *my_gethostbyaddr_r(const char *addr, struct hostent *rval = NULL; /* FIXME this should have been done in 'erl'_init()? */ - if (!ei_resolve_initialized) ei_init_resolve(); + if (!ei_resolve_initialized) { + *h_errnop = NO_RECOVERY; + return NULL; + } #ifdef _REENTRANT /* === BEGIN critical section === */ @@ -645,8 +653,11 @@ struct hostent *ei_gethostbyname_r(const char *name, #else #if (defined(__GLIBC__) || defined(__linux__) || (__FreeBSD_version >= 602000) || defined(__DragonFly__) || defined(__ANDROID__)) struct hostent *result; + int err; - gethostbyname_r(name, hostp, buffer, buflen, &result, h_errnop); + err = gethostbyname_r(name, hostp, buffer, buflen, &result, h_errnop); + if (err == ERANGE) + *h_errnop = err; return result; #else |