40 lines
1.0 KiB
C
40 lines
1.0 KiB
C
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#include <unistd.h>
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#include <errno.h>
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#include <stdio.h>
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extern int errno;
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static long posix_version = 0;
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static long xsi_version = 0;
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int main(void) {
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// get interface version
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posix_version = sysconf(_SC_VERSION);
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xsi_version = sysconf(_SC_XOPEN_VERSION);
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printf("%ld %ld\n", posix_version, xsi_version);
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// sysconf
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printf("%ld\n", sysconf(_SC_ARG_MAX));
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printf("%ld %ld\n", sysconf(_SC_CHILD_MAX), sysconf(_SC_CLK_TCK));
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printf("%ld %ld\n", sysconf(_SC_LOGIN_NAME_MAX), sysconf(_SC_OPEN_MAX));
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printf("%ld\n", sysconf(_SC_SEM_NSEMS_MAX));
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if(!~sysconf(_SC_SEM_NSEMS_MAX) && errno == EINVAL){
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printf("Not a proper value.\n");
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}
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printf("%ld %ld\n", sysconf(_SC_TIMER_MAX), sysconf(_SC_STREAM_MAX));
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// pathconf
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printf("%ld\n", pathconf("./conf.c", _PC_FILESIZEBITS));
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printf("%ld\n", pathconf("./conf.c", _PC_NAME_MAX));
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// printf("%ld\n", pathconf("./conf.c", _PC_TIMESTAMP_RESOLUTION));
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printf("%ld\n", pathconf("./conf.c", _PC_PATH_MAX));
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printf("%ld\n", pathconf("./conf.c", _PC_LINK_MAX));
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return 0;
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}
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