29 lines
455 B
C
29 lines
455 B
C
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#include <errno.h>
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#include <limits.h>
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#include <unistd.h>
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#include <stdio.h>
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#ifdef OPEN_MAX
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static long openmax = OPEN_MAX;
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#else
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static long openmax = 0;
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#endif
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#define OPEN_MAX_GUESS 256
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int main(void){
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if(openmax == 0) {
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errno = 0;
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if((openmax = sysconf(_SC_OPEN_MAX)) < 0){
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if(errno == 0)
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openmax = OPEN_MAX_GUESS;
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else
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printf("sysconf error for _SC_OPEN_MAX");
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}
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}
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printf("%ld\n", openmax);
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}
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