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Check for a valid pagesize in mkswap(8)

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sin 2013-10-29 15:54:12 +00:00
parent 9c37575961
commit 41769b976a
1 changed files with 6 additions and 1 deletions
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5
mkswap.c
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@ -45,7 +45,12 @@ main(int argc, char *argv[])
if (argc < 1) if (argc < 1)
usage(); usage();
pagesize = sysconf(_SC_PAGESIZE);
if (pagesize <= 0) {
pagesize = sysconf(_SC_PAGE_SIZE); pagesize = sysconf(_SC_PAGE_SIZE);
if (pagesize <= 0)
enprintf(EXIT_FAILURE, "can't determine pagesize\n");
}
fd = open(argv[0], O_RDWR); fd = open(argv[0], O_RDWR);
if (fd < 0) if (fd < 0)