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Add -h flag to print help
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parent
0775344744
commit
350aea908b
17
iodine.c
17
iodine.c
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@ -117,12 +117,18 @@ extern char *__progname;
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static void
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usage() {
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printf("Usage: %s [-u user] nameserver topdomain\n", __progname);
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printf("-f is to keep running in foreground\n");
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printf("-u name to drop privileges and run as user 'name'\n");
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printf("Usage: %s [-f] [-u user] nameserver topdomain\n", __progname);
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exit(2);
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}
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static void
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help() {
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printf("Usage: %s [-f] [-u user] nameserver topdomain\n", __progname);
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printf(" -f is to keep running in foreground\n");
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printf(" -u name to drop privileges and run as user 'name'\n");
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exit(0);
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}
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int
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main(int argc, char **argv)
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{
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@ -141,11 +147,14 @@ main(int argc, char **argv)
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usage();
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}
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while ((choice = getopt(argc, argv, "fu:")) != -1) {
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while ((choice = getopt(argc, argv, "fhu:")) != -1) {
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switch(choice) {
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case 'f':
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foreground = 1;
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break;
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case 'h':
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help();
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break;
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case 'u':
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username = optarg;
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break;
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15
iodined.c
15
iodined.c
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@ -117,11 +117,17 @@ extern char *__progname;
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static void
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usage() {
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printf("Usage: %s [-f] [-u user] topdomain\n", __progname);
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printf("-f is to keep running in foreground\n");
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printf("-u name to drop privileges and run as user 'name'\n");
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exit(2);
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}
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static void
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help() {
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printf("Usage: %s [-f] [-u user] topdomain\n", __progname);
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printf(" -f to keep running in foreground\n");
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printf(" -u name to drop privileges and run as user 'name'\n");
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exit(0);
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}
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int
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main(int argc, char **argv)
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{
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@ -140,11 +146,14 @@ main(int argc, char **argv)
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usage();
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}
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while ((choice = getopt(argc, argv, "fu:")) != -1) {
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while ((choice = getopt(argc, argv, "fhu:")) != -1) {
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switch(choice) {
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case 'f':
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foreground = 1;
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break;
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case 'h':
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help();
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break;
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case 'u':
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username = optarg;
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break;
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