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#ifdef HAVE_FCNTL_O_NONBLOCK |
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#include <sys/types.h> |
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#include <unistd.h> |
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#include <fcntl.h> |
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#if defined(sun) || defined(__sun__) || \ |
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defined(__SUNPRO_C) || defined(__SUNPRO_CC) |
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# if defined(__SVR4) || defined(__srv4__) |
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# define PLATFORM_SOLARIS |
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# else |
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# define PLATFORM_SUNOS4 |
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# endif |
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#endif |
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#if (defined(_AIX) || defined(__xlC__)) && !defined(_AIX41) |
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# define PLATFORM_AIX_V3 |
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#endif |
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#if defined(PLATFORM_SUNOS4) || defined(PLATFORM_AIX_V3) |
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#error "O_NONBLOCK does not work on this platform" |
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#endif |
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int main(void) |
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{ |
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int flags = 0; |
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if(0 != fcntl(0, F_SETFL, flags | O_NONBLOCK)) |
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return 1; |
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; |
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return 0; |
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} |
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#endif |
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#if defined(HAVE_GETHOSTBYNAME_R_3_REENTRANT) || \ |
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defined(HAVE_GETHOSTBYNAME_R_5_REENTRANT) || \ |
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defined(HAVE_GETHOSTBYNAME_R_6_REENTRANT) |
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# define _REENTRANT |
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# define TEST_GETHOSTBYFOO_REENTRANT |
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#endif |
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#if defined(HAVE_GETHOSTBYNAME_R_3) || \ |
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defined(HAVE_GETHOSTBYNAME_R_5) || \ |
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defined(HAVE_GETHOSTBYNAME_R_6) || \ |
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defined(TEST_GETHOSTBYFOO_REENTRANT) |
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#include <sys/types.h> |
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#include <netdb.h> |
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int main(void) |
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{ |
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char *address = "example.com"; |
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int length = 0; |
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int type = 0; |
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|
struct hostent h; |
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|
int rc = 0; |
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|
#if defined(HAVE_GETHOSTBYNAME_R_3) || \ |
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defined(HAVE_GETHOSTBYNAME_R_3_REENTRANT) |
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struct hostent_data hdata; |
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#elif defined(HAVE_GETHOSTBYNAME_R_5) || \ |
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defined(HAVE_GETHOSTBYNAME_R_5_REENTRANT) || \ |
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defined(HAVE_GETHOSTBYNAME_R_6) || \ |
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|
defined(HAVE_GETHOSTBYNAME_R_6_REENTRANT) |
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char buffer[8192]; |
|
|
int h_errnop; |
|
|
struct hostent *hp; |
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|
#endif |
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#if defined(HAVE_GETHOSTBYNAME_R_3) || \ |
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|
defined(HAVE_GETHOSTBYNAME_R_3_REENTRANT) |
|
|
rc = gethostbyname_r(address, &h, &hdata); |
|
|
#elif defined(HAVE_GETHOSTBYNAME_R_5) || \ |
|
|
defined(HAVE_GETHOSTBYNAME_R_5_REENTRANT) |
|
|
rc = gethostbyname_r(address, &h, buffer, 8192, &h_errnop); |
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|
(void)hp; |
|
|
#elif defined(HAVE_GETHOSTBYNAME_R_6) || \ |
|
|
defined(HAVE_GETHOSTBYNAME_R_6_REENTRANT) |
|
|
rc = gethostbyname_r(address, &h, buffer, 8192, &hp, &h_errnop); |
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|
#endif |
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|
|
(void)length; |
|
|
(void)type; |
|
|
(void)rc; |
|
|
return 0; |
|
|
} |
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|
#endif |
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#ifdef HAVE_IN_ADDR_T |
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#include <sys/types.h> |
|
|
#include <sys/socket.h> |
|
|
#include <arpa/inet.h> |
|
|
int main(void) |
|
|
{ |
|
|
if((in_addr_t *) 0) |
|
|
return 0; |
|
|
if(sizeof(in_addr_t)) |
|
|
return 0; |
|
|
; |
|
|
return 0; |
|
|
} |
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|
#endif |
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|
#ifdef HAVE_BOOL_T |
|
|
#ifdef HAVE_SYS_TYPES_H |
|
|
#include <sys/types.h> |
|
|
#endif |
|
|
#ifdef HAVE_STDBOOL_H |
|
|
#include <stdbool.h> |
|
|
#endif |
|
|
int main(void) |
|
|
{ |
|
|
if(sizeof(bool *)) |
|
|
return 0; |
|
|
; |
|
|
return 0; |
|
|
} |
|
|
#endif |
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|
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|
|
#ifdef STDC_HEADERS |
|
|
#include <stdlib.h> |
|
|
#include <stdarg.h> |
|
|
#include <string.h> |
|
|
#include <float.h> |
|
|
int main(void) { return 0; } |
|
|
#endif |
|
|
|
|
|
#ifdef HAVE_FILE_OFFSET_BITS |
|
|
#ifdef _FILE_OFFSET_BITS |
|
|
#undef _FILE_OFFSET_BITS |
|
|
#endif |
|
|
#define _FILE_OFFSET_BITS 64 |
|
|
#include <sys/types.h> |
|
|
|
|
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|
|
#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62)) |
|
|
int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 |
|
|
&& LARGE_OFF_T % 2147483647 == 1) |
|
|
? 1 : -1]; |
|
|
int main(void) { return 0; } |
|
|
#endif |
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|
|
#ifdef HAVE_IOCTLSOCKET |
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|
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|
|
#ifdef _WIN32 |
|
|
# include <winsock2.h> |
|
|
#endif |
|
|
int main(void) |
|
|
{ |
|
|
|
|
|
int socket; |
|
|
unsigned long flags = ioctlsocket(socket, FIONBIO, &flags); |
|
|
; |
|
|
return 0; |
|
|
} |
|
|
|
|
|
#endif |
|
|
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|
|
#ifdef HAVE_IOCTLSOCKET_CAMEL |
|
|
|
|
|
#ifdef _WIN32 |
|
|
# include <winsock2.h> |
|
|
#endif |
|
|
int main(void) |
|
|
{ |
|
|
|
|
|
if(0 != IoctlSocket(0, 0, 0)) |
|
|
return 1; |
|
|
; |
|
|
return 0; |
|
|
} |
|
|
#endif |
|
|
|
|
|
#ifdef HAVE_IOCTLSOCKET_CAMEL_FIONBIO |
|
|
|
|
|
#ifdef _WIN32 |
|
|
# include <winsock2.h> |
|
|
#endif |
|
|
int main(void) |
|
|
{ |
|
|
|
|
|
long flags = 0; |
|
|
if(0 != IoctlSocket(0, FIONBIO, &flags)) |
|
|
return 1; |
|
|
; |
|
|
return 0; |
|
|
} |
|
|
#endif |
|
|
|
|
|
#ifdef HAVE_IOCTLSOCKET_FIONBIO |
|
|
|
|
|
#ifdef _WIN32 |
|
|
# include <winsock2.h> |
|
|
#endif |
|
|
int main(void) |
|
|
{ |
|
|
unsigned long flags = 0; |
|
|
if(0 != ioctlsocket(0, FIONBIO, &flags)) |
|
|
return 1; |
|
|
; |
|
|
return 0; |
|
|
} |
|
|
#endif |
|
|
|
|
|
#ifdef HAVE_IOCTL_FIONBIO |
|
|
|
|
|
|
|
|
#ifdef HAVE_SYS_TYPES_H |
|
|
# include <sys/types.h> |
|
|
#endif |
|
|
#ifdef HAVE_UNISTD_H |
|
|
# include <unistd.h> |
|
|
#endif |
|
|
#ifdef HAVE_SYS_SOCKET_H |
|
|
# include <sys/socket.h> |
|
|
#endif |
|
|
#ifdef HAVE_SYS_IOCTL_H |
|
|
# include <sys/ioctl.h> |
|
|
#endif |
|
|
#ifdef HAVE_STROPTS_H |
|
|
# include <stropts.h> |
|
|
#endif |
|
|
int main(void) |
|
|
{ |
|
|
int flags = 0; |
|
|
if(0 != ioctl(0, FIONBIO, &flags)) |
|
|
return 1; |
|
|
; |
|
|
return 0; |
|
|
} |
|
|
#endif |
|
|
|
|
|
#ifdef HAVE_IOCTL_SIOCGIFADDR |
|
|
|
|
|
|
|
|
#ifdef HAVE_SYS_TYPES_H |
|
|
# include <sys/types.h> |
|
|
#endif |
|
|
#ifdef HAVE_UNISTD_H |
|
|
# include <unistd.h> |
|
|
#endif |
|
|
#ifdef HAVE_SYS_SOCKET_H |
|
|
# include <sys/socket.h> |
|
|
#endif |
|
|
#ifdef HAVE_SYS_IOCTL_H |
|
|
# include <sys/ioctl.h> |
|
|
#endif |
|
|
#ifdef HAVE_STROPTS_H |
|
|
# include <stropts.h> |
|
|
#endif |
|
|
#include <net/if.h> |
|
|
int main(void) |
|
|
{ |
|
|
struct ifreq ifr; |
|
|
if(0 != ioctl(0, SIOCGIFADDR, &ifr)) |
|
|
return 1; |
|
|
; |
|
|
return 0; |
|
|
} |
|
|
#endif |
|
|
|
|
|
#ifdef HAVE_SETSOCKOPT_SO_NONBLOCK |
|
|
|
|
|
#ifdef _WIN32 |
|
|
# include <winsock2.h> |
|
|
#endif |
|
|
|
|
|
#ifdef HAVE_SYS_TYPES_H |
|
|
# include <sys/types.h> |
|
|
#endif |
|
|
#ifdef HAVE_SYS_SOCKET_H |
|
|
# include <sys/socket.h> |
|
|
#endif |
|
|
|
|
|
int main(void) |
|
|
{ |
|
|
if(0 != setsockopt(0, SOL_SOCKET, SO_NONBLOCK, 0, 0)) |
|
|
return 1; |
|
|
; |
|
|
return 0; |
|
|
} |
|
|
#endif |
|
|
|
|
|
#ifdef HAVE_GLIBC_STRERROR_R |
|
|
#include <string.h> |
|
|
#include <errno.h> |
|
|
|
|
|
void check(char c) {} |
|
|
|
|
|
int main(void) |
|
|
{ |
|
|
char buffer[1024]; |
|
|
|
|
|
check(strerror_r(EACCES, buffer, sizeof(buffer))[0]); |
|
|
return 0; |
|
|
} |
|
|
#endif |
|
|
|
|
|
#ifdef HAVE_POSIX_STRERROR_R |
|
|
#include <string.h> |
|
|
#include <errno.h> |
|
|
|
|
|
|
|
|
void check(float f) {} |
|
|
|
|
|
int main(void) |
|
|
{ |
|
|
char buffer[1024]; |
|
|
|
|
|
check(strerror_r(EACCES, buffer, sizeof(buffer))); |
|
|
return 0; |
|
|
} |
|
|
#endif |
|
|
|
|
|
#ifdef HAVE_FSETXATTR_6 |
|
|
#include <sys/xattr.h> |
|
|
int main(void) |
|
|
{ |
|
|
fsetxattr(0, 0, 0, 0, 0, 0); |
|
|
return 0; |
|
|
} |
|
|
#endif |
|
|
|
|
|
#ifdef HAVE_FSETXATTR_5 |
|
|
#include <sys/xattr.h> |
|
|
int main(void) |
|
|
{ |
|
|
fsetxattr(0, 0, 0, 0, 0); |
|
|
return 0; |
|
|
} |
|
|
#endif |
|
|
|
|
|
#ifdef HAVE_CLOCK_GETTIME_MONOTONIC |
|
|
#include <time.h> |
|
|
int main(void) |
|
|
{ |
|
|
struct timespec ts = {0, 0}; |
|
|
clock_gettime(CLOCK_MONOTONIC, &ts); |
|
|
return 0; |
|
|
} |
|
|
#endif |
|
|
|
|
|
#ifdef HAVE_BUILTIN_AVAILABLE |
|
|
int main(void) |
|
|
{ |
|
|
if(__builtin_available(macOS 10.12, iOS 5.0, *)) {} |
|
|
return 0; |
|
|
} |
|
|
#endif |
|
|
|
|
|
#ifdef HAVE_ATOMIC |
|
|
|
|
|
#ifdef HAVE_SYS_TYPES_H |
|
|
# include <sys/types.h> |
|
|
#endif |
|
|
#ifdef HAVE_UNISTD_H |
|
|
# include <unistd.h> |
|
|
#endif |
|
|
#ifdef HAVE_STDATOMIC_H |
|
|
# include <stdatomic.h> |
|
|
#endif |
|
|
|
|
|
|
|
|
int main(void) |
|
|
{ |
|
|
_Atomic int i = 1; |
|
|
i = 0; |
|
|
return i; |
|
|
} |
|
|
#endif |
|
|
|
|
|
#ifdef HAVE_WIN32_WINNT |
|
|
|
|
|
#ifdef _WIN32 |
|
|
# ifndef NOGDI |
|
|
# define NOGDI |
|
|
# endif |
|
|
# include <windows.h> |
|
|
#endif |
|
|
|
|
|
|
|
|
#define enquote(x) #x |
|
|
#define expand(x) enquote(x) |
|
|
#pragma message("_WIN32_WINNT=" expand(_WIN32_WINNT)) |
|
|
|
|
|
int main(void) |
|
|
{ |
|
|
return 0; |
|
|
} |
|
|
#endif |
|
|
|