50 lines
1.0 KiB
C
50 lines
1.0 KiB
C
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/*
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* Copyright (c) 1991-1994 by the University of Southern California
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*
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* For copying and distribution information, please see the file
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* <usc-license.h>.
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*/
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#include <usc-license.h>
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/* Stuff that handles stat, scrounged from other places */
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <time.h>
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#include <pfs.h> /* for prototypes for these functions */
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/* Stat and get a modification time. Returns 0 upon failure. */
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extern time_t
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mtime(const char native_dirname[])
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{
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struct stat st_buf;
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if(stat(native_dirname, &st_buf) == 0)
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return st_buf.st_mtime;
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else
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return 0;
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}
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/* Is it a directory? 1 = yes, 0 = no, -1 = failure? */
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extern int
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is_dir(const char native_filename[])
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{
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struct stat st_buf;
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if(stat(native_filename, &st_buf) == 0)
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return S_ISDIR(st_buf.st_mode) ? 1 : 0;
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else
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return -1;
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}
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/* Return age of file in seconds -1 on failure*/
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int
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stat_age(const char *path) {
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time_t then;
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return ((then = mtime(path)) ? time((time_t *) 0)-then : -1);
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}
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