35 lines
455 B
C
35 lines
455 B
C
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#include <unistd.h>
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#include <errno.h>
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#include <fcntl.h>
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#ifdef __linux__
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#include <linux/limits.h>
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#endif
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#include "cron.h"
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int close_all(int start)
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{
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#ifdef F_CLOSEM
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return fcntl(start, F_CLOSEM);
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#else
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int fd, max;
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max = sysconf(_SC_OPEN_MAX);
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if (max <= 0)
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return -1;
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#ifdef __linux__
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if (max < NR_OPEN)
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max = NR_OPEN;
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#endif
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for (fd = start; fd < max; fd++) {
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if (close(fd) && errno != EBADF)
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return -1;
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}
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return 0;
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#endif
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}
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