2b22a6909d
Closes #325 Add a new subid_init() function which can be used to specify the stream on which error messages should be printed. (If you want to get fancy you can redirect that to memory :) If subid_init() is not called, use stderr. If NULL is passed, then /dev/null will be used. This patch also fixes up the 'Prog', which previously had to be defined by any program linking against libsubid. Now, by default in libsubid it will show (subid). Once subid_init() is called, it will use the first variable passed to subid_init(). Signed-off-by: Serge Hallyn <serge@hallyn.com>
60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
#include <stdio.h>
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#include <unistd.h>
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#include "subid.h"
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#include "stdlib.h"
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#include "prototypes.h"
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/* Test program for the subid creation routine */
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const char *Prog;
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FILE *shadow_logfd = NULL;
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void usage(void)
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{
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fprintf(stderr, "Usage: %s [-g] [-n] user count\n", Prog);
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fprintf(stderr, " Find a subuid (or with -g, subgid) range for user\n");
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fprintf(stderr, " If -n is given, a new range will be created even if one exists\n");
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fprintf(stderr, " count defaults to 65536\n");
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exit(EXIT_FAILURE);
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}
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int main(int argc, char *argv[])
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{
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int c;
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struct subordinate_range range;
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bool makenew = false; // reuse existing by default
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bool group = false; // get subuids by default
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bool ok;
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Prog = Basename (argv[0]);
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shadow_logfd = stderr;
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while ((c = getopt(argc, argv, "gn")) != EOF) {
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switch(c) {
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case 'n': makenew = true; break;
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case 'g': group = true; break;
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default: usage();
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}
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}
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argv = &argv[optind];
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argc = argc - optind;
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if (argc == 0)
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usage();
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range.owner = argv[0];
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range.start = 0;
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range.count = 65536;
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if (argc > 1)
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range.count = atoi(argv[1]);
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if (group)
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ok = grant_subgid_range(&range, !makenew);
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else
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ok = grant_subuid_range(&range, !makenew);
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if (!ok) {
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fprintf(stderr, "Failed creating new id range\n");
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exit(EXIT_FAILURE);
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}
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printf("Subuid range %lu:%lu\n", range.start, range.count);
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return 0;
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}
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