obgm/libcoap
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getifaddrs(): Check for function support

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Jon Shallow authored and Jon Shallow committed 2025-12-29 10:52:17 +00:00
1 parent 3c685a2b4d
commit 5fb4cd8a9c
4 files changed
+11 -7
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CMakeLists.txt
+1
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@@ -314,6 +314,7 @@ if(MINGW OR WIN32)
set(CMAKE_REQUIRED_LIBRARIES "")
endif()
check_function_exists(getaddrinfo HAVE_GETADDRINFO)
check_function_exists(getifaddrs HAVE_GETIFADDRS)
check_function_exists(strnlen HAVE_STRNLEN)
check_function_exists(strrchr HAVE_STRRCHR)
check_function_exists(getrandom HAVE_GETRANDOM)
cmake_coap_config.h.in
+3
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@@ -43,6 +43,9 @@
/* Define to 1 if you have the `getaddrinfo' function. */
#cmakedefine HAVE_GETADDRINFO @HAVE_GETADDRINFO@
/* Define to 1 if you have the `getifaddrs' function. */
#cmakedefine HAVE_GETIFADDRS @HAVE_GETIFADDRS@
/* Define to 1 if you have the `getrandom' function. */
#cmakedefine HAVE_GETRANDOM @HAVE_GETRANDOM@
configure.ac
+1 -1
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@@ -1242,7 +1242,7 @@ AC_TYPE_SIZE_T
AC_TYPE_SSIZE_T
# Checks for library functions.
AC_CHECK_FUNCS([memset select socket strcasecmp strrchr getaddrinfo \
AC_CHECK_FUNCS([memset select socket strcasecmp strrchr getaddrinfo getifaddrs \
strnlen malloc pthread_mutex_lock getrandom random if_nametoindex])
# Check if -lsocket -lnsl is required (specifically Solaris)
src/coap_address.c
+6 -6
View File
@@ -180,20 +180,20 @@ coap_is_mcast(const coap_address_t *a) {
#define COAP_BCST_REFRESH_SECS 30
#endif /* COAP_BCST_REFRESH_SECS */
#if (COAP_IPV4_SUPPORT && defined(HAVE_IFADDRS_H) && !defined(__ZEPHYR__)) || defined(_WIN32)
#if COAP_IPV4_SUPPORT && !defined(__ZEPHYR__) && (defined(HAVE_GETIFADDRS) || defined(_WIN32))
static int bcst_cnt = -1;
static coap_tick_t last_refresh;
static struct in_addr b_ipv4[COAP_BCST_CNT];
#endif /* (COAP_IPV4_SUPPORT && HAVE_IFADDRS_H && !defined(__ZEPHYR__)) || defined(_WIN32) */
#endif /* COAP_IPV4_SUPPORT && !defined(__ZEPHYR__) && (defined(HAVE_GETIFADDRS) || defined(_WIN32)) */
int
coap_is_bcast(const coap_address_t *a) {
#if COAP_IPV4_SUPPORT
struct in_addr ipv4;
#if defined(HAVE_IFADDRS_H) && !defined(__ZEPHYR__)
#if defined(HAVE_GETIFADDRS) && !defined(__ZEPHYR__)
int i;
coap_tick_t now;
#endif /* HAVE_IFADDRS_H && !defined(__ZEPHYR__) */
#endif /* HAVE_GETIFADDRS && !defined(__ZEPHYR__) */
#endif /* COAP_IPV4_SUPPORT */
if (!a)
@@ -226,7 +226,7 @@ coap_is_bcast(const coap_address_t *a) {
if (ipv4.s_addr == INADDR_BROADCAST)
return 1;
#if defined(HAVE_IFADDRS_H) && !defined(__ZEPHYR__) && !defined(_WIN32)
#if defined(HAVE_GETIFADDRS) && !defined(__ZEPHYR__)
coap_ticks(&now);
if (bcst_cnt == -1 ||
(now - last_refresh) > (COAP_BCST_REFRESH_SECS * COAP_TICKS_PER_SECOND)) {
@@ -268,7 +268,7 @@ coap_is_bcast(const coap_address_t *a) {
if (ipv4.s_addr == b_ipv4[i].s_addr)
return 1;
}
#endif /* HAVE_IFADDRS_H && !defined(__ZEPHYR__) && !defined(_WIN32) */
#endif /* HAVE_GETIFADDRS && !defined(__ZEPHYR__) */
#if defined(_WIN32)