diff options
Diffstat (limited to 'src/sysdeps')
35 files changed, 767 insertions, 0 deletions
diff --git a/src/sysdeps/tryaccept4.c b/src/sysdeps/tryaccept4.c new file mode 100644 index 0000000..e27eb1a --- /dev/null +++ b/src/sysdeps/tryaccept4.c @@ -0,0 +1,33 @@ +/* ISC license. */ + +#undef _POSIX_C_SOURCE +#undef _XOPEN_SOURCE + +#ifndef _XPG4_2 +# define _XPG4_2 +#endif + +#ifndef _GNU_SOURCE +# define _GNU_SOURCE +#endif + +#include <sys/types.h> + +#if defined(__FreeBSD__) +# include <sys/param.h> +#endif + +#include <sys/socket.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <errno.h> + +int main (void) +{ + struct sockaddr blah ; + socklen_t blahlen = sizeof(blah) ; + int fd = open("/dev/null", O_RDONLY | O_NONBLOCK) ; + if (fd < 0) return 111 ; + if ((accept4(fd, &blah, &blahlen, SOCK_NONBLOCK) < 0) && (errno != ENOTSOCK)) return 1 ; + return 0 ; +} diff --git a/src/sysdeps/tryancilautoclose.c b/src/sysdeps/tryancilautoclose.c new file mode 100644 index 0000000..7b4a563 --- /dev/null +++ b/src/sysdeps/tryancilautoclose.c @@ -0,0 +1,116 @@ +/* ISC license. */ + +#undef _POSIX_C_SOURCE +#undef _XOPEN_SOURCE + +#ifndef _XPG4_2 +# define _XPG4_2 +#endif + +#include <sys/types.h> +#include <unistd.h> +#include <errno.h> +#include <sys/socket.h> +#include <sys/uio.h> +#if defined(__FreeBSD__) +# include <sys/param.h> +#endif + +typedef struct ancilbuf_s ancilbuf_t, *ancilbuf_t_ref ; +struct ancilbuf_s +{ + struct cmsghdr h ; + int fd ; +} ; + +static int ancil_send_fd (int sock, int fd) +{ + struct msghdr msghdr ; + struct iovec nothing_ptr ; + ancilbuf_t buf ; + struct cmsghdr *cmsg ; + char nothing = '!' ; + + nothing_ptr.iov_base = ¬hing ; + nothing_ptr.iov_len = 1 ; + msghdr.msg_name = 0 ; + msghdr.msg_namelen = 0 ; + msghdr.msg_iov = ¬hing_ptr ; + msghdr.msg_iovlen = 1 ; + msghdr.msg_flags = 0 ; + msghdr.msg_control = &buf ; + msghdr.msg_controllen = sizeof(ancilbuf_t) ; + cmsg = CMSG_FIRSTHDR(&msghdr) ; + cmsg->cmsg_len = msghdr.msg_controllen ; + cmsg->cmsg_level = SOL_SOCKET ; + cmsg->cmsg_type = SCM_RIGHTS ; + *((int *)CMSG_DATA(cmsg)) = fd ; + return (sendmsg(sock, &msghdr, 0) >= 0) ; +} + +static int ancil_recv_fd (int sock) +{ + struct msghdr msghdr ; + struct iovec nothing_ptr ; + ancilbuf_t buf ; + struct cmsghdr *cmsg ; + char nothing ; + + nothing_ptr.iov_base = ¬hing ; + nothing_ptr.iov_len = 1 ; + msghdr.msg_name = 0 ; + msghdr.msg_namelen = 0 ; + msghdr.msg_iov = ¬hing_ptr ; + msghdr.msg_iovlen = 1 ; + msghdr.msg_flags = 0 ; + msghdr.msg_control = &buf ; + msghdr.msg_controllen = sizeof(ancilbuf_t) ; + cmsg = CMSG_FIRSTHDR(&msghdr) ; + cmsg->cmsg_len = msghdr.msg_controllen ; + cmsg->cmsg_level = SOL_SOCKET ; + cmsg->cmsg_type = SCM_RIGHTS ; + *((int *)CMSG_DATA(cmsg)) = -1 ; + if (recvmsg(sock, &msghdr, 0) < 0) return -1 ; + return *((int *)CMSG_DATA(cmsg)) ; +} + +static int client (int sock) +{ + int p ; + char c ; + if (read(sock, &c, 1) < 1) return 111 ; + if (c != 'b') return 111 ; + p = ancil_recv_fd(sock) ; + if (p < 0) return 111 ; + if (read(sock, &c, 1) < 1) return 111 ; + if (c != 'a') return 111 ; + if (read(p, &c, 1) < 1) return 111 ; + if (c != 'K') return 111 ; + if (read(p, &c, 1) < 1) return 111 ; + return c ; +} + +static void server (int sock) +{ + int p[2] ; + char c = 1 ; + if (pipe(p) < 0) return ; + if (write(sock, "b", 1) < 1) return ; + if (!ancil_send_fd(sock, p[0])) return ; + if (write(sock, "a", 1) < 1) return ; + if (write(p[1], "K", 1) < 1) return ; + if ((close(p[0]) < 0) && (errno == EBADF)) c = 0 ; + write(p[1], &c, 1) ; +} + +int main (void) +{ + int fd[2] ; + if (socketpair(AF_UNIX, SOCK_STREAM, 0, fd) < 0) return 111 ; + switch (fork()) + { + case -1 : return 111 ; + case 0 : close(fd[0]) ; server(fd[1]) ; return 0 ; + default : close(fd[1]) ; return client(fd[0]) ; + } +} diff --git a/src/sysdeps/tryclockmon.c b/src/sysdeps/tryclockmon.c new file mode 100644 index 0000000..2564ed3 --- /dev/null +++ b/src/sysdeps/tryclockmon.c @@ -0,0 +1,11 @@ +/* ISC license. */ + +#include <sys/types.h> +#include <time.h> + +int main (void) +{ + struct timespec ts ; + if (clock_gettime(CLOCK_MONOTONIC, &ts) < 0) return 111 ; + return 0 ; +} diff --git a/src/sysdeps/tryclockrt.c b/src/sysdeps/tryclockrt.c new file mode 100644 index 0000000..01bae7c --- /dev/null +++ b/src/sysdeps/tryclockrt.c @@ -0,0 +1,11 @@ +/* ISC license. */ + +#include <sys/types.h> +#include <time.h> + +int main (void) +{ + struct timespec ts ; + if (clock_gettime(CLOCK_REALTIME, &ts) < 0) return 111 ; + return 0 ; +} diff --git a/src/sysdeps/trycmsgcloexec.c b/src/sysdeps/trycmsgcloexec.c new file mode 100644 index 0000000..7923340 --- /dev/null +++ b/src/sysdeps/trycmsgcloexec.c @@ -0,0 +1,25 @@ +/* ISC license. */ + +#undef _POSIX_C_SOURCE +#undef _XOPEN_SOURCE + +#ifndef _XPG4_2 +# define _XPG4_2 +#endif + +#ifndef _XPG_6 +# define _XPG6 +#endif + +#ifndef _GNU_SOURCE +# define _GNU_SOURCE +#endif + +#include <sys/types.h> +#include <sys/socket.h> + +int main (void) +{ + int flag = MSG_CMSG_CLOEXEC ; + return 0 ; +} diff --git a/src/sysdeps/trydevrandom.c b/src/sysdeps/trydevrandom.c new file mode 100644 index 0000000..395d008 --- /dev/null +++ b/src/sysdeps/trydevrandom.c @@ -0,0 +1,54 @@ +/* ISC license. */ + +#include <unistd.h> +#include <sys/types.h> +#include <fcntl.h> +#include <errno.h> + +static int fd_read (int fd, char *buf, unsigned int len) +{ + register int r ; + do r = read(fd, buf, len) ; + while ((r == -1) && (errno == EINTR)) ; + return r ; +} + +static unsigned int allread (int fd, register char *buf, register unsigned int len) +{ + register unsigned int written = 0 ; + while (len) + { + register int w = fd_read(fd, buf, len) ; + if (!w) errno = EPIPE ; + if (w <= 0) break ; + written += w ; + buf += w ; + len -= w ; + } + return written ; +} + +static int byte_diff (char *s, unsigned int n, char *t) +{ + for (;;) + { + if (!n) return 0 ; + if (*s != *t) break ; + ++s ; ++t ; --n ; + } + return ((int)(unsigned int)(unsigned char) *s) + - ((int)(unsigned int)(unsigned char) *t); +} + +int main () +{ + char a[64] ; + char b[64] ; + int fd = open("/dev/random", O_RDONLY) ; + if ((fd == -1) || (allread(fd, a, 64) < 64) ) return 111 ; + close(fd) ; + fd = open("/dev/random", O_RDONLY) ; + if ((fd == -1) || (allread(fd, b, 64) < 64) ) return 111 ; + close(fd) ; + return !byte_diff(a, 64, b) ; +} diff --git a/src/sysdeps/trydevurandom.c b/src/sysdeps/trydevurandom.c new file mode 100644 index 0000000..3d0f912 --- /dev/null +++ b/src/sysdeps/trydevurandom.c @@ -0,0 +1,31 @@ +/* ISC license. */ + +#include <unistd.h> +#include <sys/types.h> +#include <fcntl.h> + +static int byte_diff (char *s, unsigned int n, char *t) +{ + for (;;) + { + if (!n) return 0 ; + if (*s != *t) break ; + ++s ; ++t ; --n ; + } + return ((int)(unsigned int)(unsigned char) *s) + - ((int)(unsigned int)(unsigned char) *t); +} + +int main () +{ + char a[64] ; + char b[64] ; + int fd ; + fd = open("/dev/urandom", O_RDONLY) ; + if ((fd == -1) || (read(fd, a, 64) < 64) ) return 111 ; + close(fd) ; + fd = open("/dev/urandom", O_RDONLY) ; + if ((fd == -1) || (read(fd, b, 64) < 64) ) return 111 ; + close(fd) ; + return (!byte_diff(a, 64, b)) ; +} diff --git a/src/sysdeps/tryendianness.c b/src/sysdeps/tryendianness.c new file mode 100644 index 0000000..3fa1938 --- /dev/null +++ b/src/sysdeps/tryendianness.c @@ -0,0 +1,43 @@ +/* ISC license. */ + +#include <stdio.h> + +int main (void) +{ + unsigned long i = 0xdeadbeefUL ; + if (sizeof(unsigned long) == 4) + if ((((unsigned char *)(&i))[0] == 0xef) + && (((unsigned char *)(&i))[1] == 0xbe) + && (((unsigned char *)(&i))[2] == 0xad) + && (((unsigned char *)(&i))[3] == 0xde)) + return (puts("little"), 0) ; + else if ((((unsigned char *)(&i))[0] == 0xde) + && (((unsigned char *)(&i))[1] == 0xad) + && (((unsigned char *)(&i))[2] == 0xbe) + && (((unsigned char *)(&i))[3] == 0xef)) + return (puts("big"), 0) ; + else return (puts("unknown"), 1) ; + else if (sizeof(unsigned long) == 8) + if ((((unsigned char *)(&i))[0] == 0xef) + && (((unsigned char *)(&i))[1] == 0xbe) + && (((unsigned char *)(&i))[2] == 0xad) + && (((unsigned char *)(&i))[3] == 0xde) + && (((unsigned char *)(&i))[4] == 0x00) + && (((unsigned char *)(&i))[5] == 0x00) + && (((unsigned char *)(&i))[6] == 0x00) + && (((unsigned char *)(&i))[7] == 0x00)) + return (puts("little"), 0) ; + else if (sizeof(unsigned long) == 8) + if ((((unsigned char *)(&i))[0] == 0x00) + && (((unsigned char *)(&i))[1] == 0x00) + && (((unsigned char *)(&i))[2] == 0x00) + && (((unsigned char *)(&i))[3] == 0x00) + && (((unsigned char *)(&i))[4] == 0xde) + && (((unsigned char *)(&i))[5] == 0xad) + && (((unsigned char *)(&i))[6] == 0xbe) + && (((unsigned char *)(&i))[7] == 0xef)) + return (puts("big"), 0) ; + else return (puts("unknown"), 1) ; + else return 1 ; + else return (puts("unknown unsigned long size"), 1) ; +} diff --git a/src/sysdeps/tryeproto.c b/src/sysdeps/tryeproto.c new file mode 100644 index 0000000..b5cc66c --- /dev/null +++ b/src/sysdeps/tryeproto.c @@ -0,0 +1,7 @@ +/* ISC license. */ + +#include <errno.h> +static int dummy ; +#ifndef EPROTO + syntax error ! +#endif diff --git a/src/sysdeps/tryeventfd.c b/src/sysdeps/tryeventfd.c new file mode 100644 index 0000000..3c3122c --- /dev/null +++ b/src/sysdeps/tryeventfd.c @@ -0,0 +1,10 @@ +/* ISC license. */ + +#include <sys/eventfd.h> + +int main (void) +{ + int fd = eventfd(0, EFD_NONBLOCK) ; + if (fd < 0) return 1 ; + return 0 ; +} diff --git a/src/sysdeps/tryflock.c b/src/sysdeps/tryflock.c new file mode 100644 index 0000000..47fadf8 --- /dev/null +++ b/src/sysdeps/tryflock.c @@ -0,0 +1,13 @@ +/* ISC license. */ + +#undef _POSIX_C_SOURCE +#undef _XOPEN_SOURCE + +#include <sys/types.h> +#include <sys/file.h> +#include <fcntl.h> + +int main (void) +{ + return flock(0, LOCK_EX | LOCK_UN | LOCK_NB) ; +} diff --git a/src/sysdeps/trygetpeereid.c b/src/sysdeps/trygetpeereid.c new file mode 100644 index 0000000..10a411a --- /dev/null +++ b/src/sysdeps/trygetpeereid.c @@ -0,0 +1,15 @@ +/* ISC license. */ + +#undef _POSIX_C_SOURCE +#undef _XOPEN_SOURCE + +#include <sys/types.h> +#include <unistd.h> + +int main (void) +{ + uid_t uid ; + gid_t gid ; + int s = 0 ; + return getpeereid(s, &uid, &gid) ; +} diff --git a/src/sysdeps/trygetpeerucred.c b/src/sysdeps/trygetpeerucred.c new file mode 100644 index 0000000..22dac68 --- /dev/null +++ b/src/sysdeps/trygetpeerucred.c @@ -0,0 +1,20 @@ +/* ISC license. */ + +#undef _POSIX_C_SOURCE +#undef _XOPEN_SOURCE + +#include <sys/types.h> +#include <ucred.h> + +int main (void) +{ + ucred_t *cred ; + uid_t uid ; + gid_t gid ; + int s = 0 ; + getpeerucred(s, &cred) ; + uid = ucred_geteuid(cred) ; + gid = ucred_getegid(cred) ; + ucred_free(cred) ; + return 0 ; +} diff --git a/src/sysdeps/tryipv6.c b/src/sysdeps/tryipv6.c new file mode 100644 index 0000000..0c7f306 --- /dev/null +++ b/src/sysdeps/tryipv6.c @@ -0,0 +1,35 @@ +/* ISC license. */ + +#undef _POSIX_C_SOURCE +#undef _XOPEN_SOURCE + +#define _XPG4_2 +#define _XPG6 + +#include <sys/types.h> + +#if defined(__FreeBSD__) +# include <sys/param.h> +#endif + +#include <errno.h> +#include <string.h> +#include <sys/socket.h> +#include <netinet/in.h> + +int main (void) +{ + int s ; + register int r ; + struct in6_addr foo ; + struct sockaddr_in6 bar ; + memset(&foo, 0, sizeof(struct sockaddr_in6)) ; + bar.sin6_addr = foo ; + bar.sin6_port = 1026 ; + s = socket(AF_INET6, SOCK_STREAM, 0) ; + if (s < 0) return 111 ; + do r = connect(s, (struct sockaddr *)&bar, sizeof bar) ; + while ((r == -1) && (errno == EINTR)) ; + if ((r == -1) && (errno == EALREADY)) errno = EINPROGRESS ; + return 0 ; +} diff --git a/src/sysdeps/trylinkat.c b/src/sysdeps/trylinkat.c new file mode 100644 index 0000000..3db0845 --- /dev/null +++ b/src/sysdeps/trylinkat.c @@ -0,0 +1,29 @@ +/* ISC license. */ + +#undef _POSIX_C_SOURCE +#undef _XOPEN_SOURCE + +#ifndef _GNU_SOURCE +#define _GNU_SOURCE +#endif + +#ifndef _ATFILE_SOURCE +#define _ATFILE_SOURCE +#endif + +#ifndef _INCOMPLETE_XOPEN_C063 +#define _INCOMPLETE_XOPEN_C063 +#endif + +#ifndef __EXTENSIONS__ +#define __EXTENSIONS__ +#endif + +#include <unistd.h> +#include <fcntl.h> + +int main (void) +{ + int r = linkat(AT_FDCWD, "/foo", AT_FDCWD, "foo", AT_SYMLINK_FOLLOW) ; + return (r < 0) ; +} diff --git a/src/sysdeps/trylsock.c b/src/sysdeps/trylsock.c new file mode 100644 index 0000000..b5b4413 --- /dev/null +++ b/src/sysdeps/trylsock.c @@ -0,0 +1,26 @@ +/* ISC license. */ + +#undef _POSIX_C_SOURCE +#undef _XOPEN_SOURCE + +#ifndef _XPG4_2 +# define _XPG4_2 +#endif + +#ifndef _GNU_SOURCE +# define _GNU_SOURCE +#endif + +#include <sys/types.h> + +#if defined(__FreeBSD__) +# include <sys/param.h> +#endif + +#include <sys/socket.h> + +int main (void) +{ + shutdown(0, 0) ; + return 0 ; +} diff --git a/src/sysdeps/trymalloc0.c b/src/sysdeps/trymalloc0.c new file mode 100644 index 0000000..0f68329 --- /dev/null +++ b/src/sysdeps/trymalloc0.c @@ -0,0 +1,4 @@ +/* ISC license */ + +#include <stdlib.h> +int main() { return !malloc(0) ; } diff --git a/src/sysdeps/tryopenat.c b/src/sysdeps/tryopenat.c new file mode 100644 index 0000000..d24a9cb --- /dev/null +++ b/src/sysdeps/tryopenat.c @@ -0,0 +1,29 @@ +/* ISC license. */ + +#undef _POSIX_C_SOURCE +#undef _XOPEN_SOURCE + +#ifndef _GNU_SOURCE +#define _GNU_SOURCE +#endif + +#ifndef _ATFILE_SOURCE +#define _ATFILE_SOURCE +#endif + +#ifndef _INCOMPLETE_XOPEN_C063 +#define _INCOMPLETE_XOPEN_C063 +#endif + +#ifndef __EXTENSIONS__ +#define __EXTENSIONS__ +#endif + +#include <sys/stat.h> +#include <fcntl.h> + +int main (void) +{ + int fd = openat(0, "/", O_RDONLY) ; + return (fd < 0) ; +} diff --git a/src/sysdeps/trypipe2.c b/src/sysdeps/trypipe2.c new file mode 100644 index 0000000..4e63182 --- /dev/null +++ b/src/sysdeps/trypipe2.c @@ -0,0 +1,17 @@ +/* ISC license. */ + +#ifndef _NETBSD_SOURCE +#define _NETBSD_SOURCE +#endif +#ifndef _GNU_SOURCE +#define _GNU_SOURCE +#endif + +#include <unistd.h> + +int main (void) +{ + int p[2] ; + if (pipe2(p, 0) < 0) return 111 ; + return 0 ; +} diff --git a/src/sysdeps/tryposixspawn.c b/src/sysdeps/tryposixspawn.c new file mode 100644 index 0000000..dccdba4 --- /dev/null +++ b/src/sysdeps/tryposixspawn.c @@ -0,0 +1,16 @@ +/* ISC license. */ + +#include <sys/types.h> +#include <spawn.h> + +int main (void) +{ + pid_t pid ; + posix_spawn_file_actions_t actions ; + posix_spawnattr_t attr ; + char *const argv[2] = { "/bin/true", 0 } ; + char *const envp[1] = { 0 } ; + posix_spawnattr_setflags(&attr, 0) ; + posix_spawn_file_actions_init(&actions) ; + return posix_spawn(&pid, argv[0], 0, 0, argv, envp) ; +} diff --git a/src/sysdeps/tryppoll.c b/src/sysdeps/tryppoll.c new file mode 100644 index 0000000..33380b8 --- /dev/null +++ b/src/sysdeps/tryppoll.c @@ -0,0 +1,18 @@ +/* ISC license. */ + +#define _GNU_SOURCE +#include <sys/stat.h> +#include <fcntl.h> +#include <time.h> +#include <poll.h> + +int main (void) +{ + struct pollfd x = { .events = POLLIN } ; + struct timespec ts = { .tv_sec = 0, .tv_nsec = 10 } ; + x.fd = open("src/sysdeps/tryppoll.c", O_RDONLY); + if (x.fd < 0) return 111 ; + if (ppoll(&x, 1, &ts, 0) < 0) return 1 ; + if (x.revents != POLLIN) return 1 ; + return 0 ; +} diff --git a/src/sysdeps/tryrevoke.c b/src/sysdeps/tryrevoke.c new file mode 100644 index 0000000..9cbc615 --- /dev/null +++ b/src/sysdeps/tryrevoke.c @@ -0,0 +1,7 @@ +/* ISC license. */ + +#undef _POSIX_C_SOURCE +#undef _XOPEN_SOURCE + +#include <unistd.h> +int main () { return revoke("/") ; } diff --git a/src/sysdeps/trysendfile.c b/src/sysdeps/trysendfile.c new file mode 100644 index 0000000..6c99ad0 --- /dev/null +++ b/src/sysdeps/trysendfile.c @@ -0,0 +1,10 @@ +/* ISC license. */ + +#include <sys/types.h> +#include <sys/sendfile.h> + +int main (void) +{ + sendfile(1, 0, 0, 4096) ; + return 0 ; +} diff --git a/src/sysdeps/trysetgroups.c b/src/sysdeps/trysetgroups.c new file mode 100644 index 0000000..af2d8c6 --- /dev/null +++ b/src/sysdeps/trysetgroups.c @@ -0,0 +1,27 @@ +/* ISC license. */ + +#undef _POSIX_C_SOURCE +#undef _XOPEN_SOURCE + +#ifndef _BSD_SOURCE +#define _BSD_SOURCE +#endif + +#ifndef _NETBSD_SOURCE +#define _NETBSD_SOURCE +#endif + +#ifndef __EXTENSIONS__ +#define __EXTENSIONS__ +#endif + +#include <sys/types.h> +#include <unistd.h> +#include <grp.h> + +int main (void) +{ + gid_t g = 0 ; + setgroups(1, &g) ; + return 0 ; +} diff --git a/src/sysdeps/trysettimeofday.c b/src/sysdeps/trysettimeofday.c new file mode 100644 index 0000000..05ae3c4 --- /dev/null +++ b/src/sysdeps/trysettimeofday.c @@ -0,0 +1,27 @@ +/* ISC license. */ + +#undef _POSIX_C_SOURCE +#undef _XOPEN_SOURCE + +#ifndef _BSD_SOURCE +#define _BSD_SOURCE +#endif + +#ifndef _NETBSD_SOURCE +#define _NETBSD_SOURCE +#endif + +#ifndef __EXTENSIONS__ +#define __EXTENSIONS__ +#endif + +#include <sys/types.h> +#include <sys/time.h> + +int main (void) +{ + struct timeval tv ; + gettimeofday(&tv, 0) ; + settimeofday(&tv, 0) ; + return 0 ; +} diff --git a/src/sysdeps/trysignalfd.c b/src/sysdeps/trysignalfd.c new file mode 100644 index 0000000..1f06933 --- /dev/null +++ b/src/sysdeps/trysignalfd.c @@ -0,0 +1,13 @@ +/* ISC license. */ + +#include <sys/types.h> +#include <signal.h> +#include <sys/signalfd.h> + +int main (void) +{ + sigset_t foo ; + sigemptyset(&foo) ; + if (signalfd(-1, &foo, SFD_NONBLOCK) < 0) return 1 ; + return 0 ; +} diff --git a/src/sysdeps/trysizeofgid.c b/src/sysdeps/trysizeofgid.c new file mode 100644 index 0000000..75eeb2c --- /dev/null +++ b/src/sysdeps/trysizeofgid.c @@ -0,0 +1,8 @@ +#include <sys/types.h> +#include <stdio.h> + +int main (void) +{ + printf("%u\n", (unsigned int)sizeof(gid_t)) ; + return 0 ; +} diff --git a/src/sysdeps/trysizeoftime.c b/src/sysdeps/trysizeoftime.c new file mode 100644 index 0000000..13674de --- /dev/null +++ b/src/sysdeps/trysizeoftime.c @@ -0,0 +1,8 @@ +#include <sys/types.h> +#include <stdio.h> + +int main (void) +{ + printf("%u\n", (unsigned int)sizeof(time_t)) ; + return 0 ; +} diff --git a/src/sysdeps/trysizeofuint.c b/src/sysdeps/trysizeofuint.c new file mode 100644 index 0000000..ca4af39 --- /dev/null +++ b/src/sysdeps/trysizeofuint.c @@ -0,0 +1,7 @@ +#include <stdio.h> + +int main (void) +{ + printf("%u\n", (unsigned int)sizeof(unsigned int)) ; + return 0 ; +} diff --git a/src/sysdeps/trysizeofulong.c b/src/sysdeps/trysizeofulong.c new file mode 100644 index 0000000..f2f21b1 --- /dev/null +++ b/src/sysdeps/trysizeofulong.c @@ -0,0 +1,7 @@ +#include <stdio.h> + +int main (void) +{ + printf("%u\n", (unsigned int)sizeof(unsigned long)) ; + return 0 ; +} diff --git a/src/sysdeps/trysizeofushort.c b/src/sysdeps/trysizeofushort.c new file mode 100644 index 0000000..fd410bb --- /dev/null +++ b/src/sysdeps/trysizeofushort.c @@ -0,0 +1,7 @@ +#include <stdio.h> + +int main (void) +{ + printf("%u\n", (unsigned int)sizeof(unsigned short)) ; + return 0 ; +} diff --git a/src/sysdeps/trysopeercred.c b/src/sysdeps/trysopeercred.c new file mode 100644 index 0000000..0356fcf --- /dev/null +++ b/src/sysdeps/trysopeercred.c @@ -0,0 +1,29 @@ +/* ISC license. */ + +#undef _POSIX_C_SOURCE +#undef _XOPEN_SOURCE + +#ifndef _XPG4_2 +# define _XPG4_2 +#endif + +#ifndef _GNU_SOURCE +# define _GNU_SOURCE +#endif + +#include <sys/types.h> + +#if defined(__FreeBSD__) +# include <sys/param.h> +#endif + +#include <sys/socket.h> +#include <sys/un.h> + +int main (void) +{ + int s ; + struct ucred dummy ; + socklen_t len = sizeof(struct ucred) ; + return getsockopt(s, SOL_SOCKET, SO_PEERCRED, &dummy, &len) ; +} diff --git a/src/sysdeps/trysplice.c b/src/sysdeps/trysplice.c new file mode 100644 index 0000000..6b566b8 --- /dev/null +++ b/src/sysdeps/trysplice.c @@ -0,0 +1,28 @@ +/* ISC license. */ + +#define _GNU_SOURCE +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <unistd.h> + +#define N 4096 + +int main (void) +{ + char buf[N] ; + int p[2] ; + int fd ; + if (pipe(p) < 0) return 111 ; + fd = open("./src/sysdeps/trysplice.c", O_RDONLY) ; + if (fd < 0) return 111 ; + + for (;;) + { + register int r = splice(fd, 0, p[1], 0, N, 0) ; + if (r < 0) return 1 ; + if (!r) break ; + if (splice(p[0], 0, 1, 0, r, 0) < r) return 2 ; + } + return 0 ; +} diff --git a/src/sysdeps/trystrcasestr.c b/src/sysdeps/trystrcasestr.c new file mode 100644 index 0000000..f362202 --- /dev/null +++ b/src/sysdeps/trystrcasestr.c @@ -0,0 +1,21 @@ +/* ISC license. */ + +#undef _POSIX_C_SOURCE +#undef _XOPEN_SOURCE + +#ifndef _GNU_SOURCE +#define _GNU_SOURCE +#endif +#ifndef _BSD_SOURCE +#define _BSD_SOURCE +#endif +#ifndef _NETBSD_SOURCE +#define _NETBSD_SOURCE +#endif + +#include <string.h> + +int main (void) +{ + return !strcasestr("foobar", "bar") ; +} diff --git a/src/sysdeps/tryuint64t.c b/src/sysdeps/tryuint64t.c new file mode 100644 index 0000000..23aafad --- /dev/null +++ b/src/sysdeps/tryuint64t.c @@ -0,0 +1,5 @@ +/* ISC license. */ + +#include <stdint.h> + +uint64_t dummy = 0 ; |