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iodine/iodined: do not print usage if no superuser

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There is no value in printing the usage in this case, as the usage
doesn't give the user any hint on how to solve this issue.

Furthermore, replace the Windows implementation with an empty inline
function, which will result in no code.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
This commit is contained in:
Ralf Ramsauer 2017-03-11 02:05:13 -08:00
parent c83d2ae03c
commit 1c86bf347f
4 changed files with 14 additions and 10 deletions
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12
src/common.c
View file

@ -101,18 +101,16 @@ int setgroups(int count, int *groups)
}
#endif
void
check_superuser(void (*usage_fn)(void))
{
#ifndef WINDOWS32
void
check_superuser(void)
{
if (geteuid() != 0) {
warnx("Run as root and you'll be happy.\n");
usage_fn();
/* NOTREACHED */
exit(-1);
}
#endif
}
#endif
char *
format_addr(struct sockaddr_storage *sockaddr, int sockaddr_len)

8
src/common.h
View file

@ -102,7 +102,13 @@ enum connection {
CONN_MAX
};
void check_superuser(void (*usage_fn)(void));
#ifdef WINDOWS32
static inline void check_superuser(void)
{
}
#else
void check_superuser(void);
#endif
char *format_addr(struct sockaddr_storage *sockaddr, int sockaddr_len);
int get_addr(char *, int, int, int, struct sockaddr_storage *);
int open_dns(struct sockaddr_storage *, size_t);

2
src/iodine.c
View file

@ -275,7 +275,7 @@ main(int argc, char **argv)
}
}
check_superuser(usage);
check_superuser();
argc -= optind;
argv += optind;

2
src/iodined.c
View file

@ -2537,7 +2537,7 @@ main(int argc, char **argv)
argc -= optind;
argv += optind;
check_superuser(usage);
check_superuser();
if (argc != 2)
usage();