f14670ee1a
strtou[l]l(3) silently converts negative numbers into positive. This behavior is wrong: a negative value should be parsed as a negative value, which would underflow unsigned (long) long, and so would return the smallest possible value, 0, and set errno to ERANGE to report an error. Reviewed-by: Iker Pedrosa <ipedrosa@redhat.com> Cc: "Serge E. Hallyn" <serge@hallyn.com> Signed-off-by: Alejandro Colomar <alx@kernel.org>
55 lines
1.1 KiB
C
55 lines
1.1 KiB
C
// This program is for testing purposes only.
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// usage is "[program] owner [u|g] start count
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// Exits 0 if owner has subid range starting start, of size count
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// Exits 1 otherwise.
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#include <config.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include "atoi/strtou_noneg.h"
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#include "defines.h"
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#include "prototypes.h"
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#include "subordinateio.h"
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#include "idmapping.h"
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#include "shadowlog.h"
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const char *Prog;
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int main(int argc, char **argv)
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{
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char *owner;
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unsigned long start, count;
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bool check_uids;
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Prog = Basename (argv[0]);
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log_set_progname(Prog);
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log_set_logfd(stderr);
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if (argc != 5)
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exit(1);
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owner = argv[1];
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check_uids = argv[2][0] == 'u';
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errno = 0;
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start = strtoul_noneg(argv[3], NULL, 10);
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if (errno != 0)
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exit(1);
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count = strtoul_noneg(argv[4], NULL, 10);
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if (errno != 0)
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exit(1);
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if (check_uids) {
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if (have_sub_uids(owner, start, count))
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exit(0);
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exit(1);
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}
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if (have_sub_gids(owner, start, count))
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exit(0);
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exit(1);
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}
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