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| author | Karel Zak <kzak@redhat.com> | 2007-06-29 02:27:27 +0200 |
|---|---|---|
| committer | Karel Zak <kzak@redhat.com> | 2007-06-29 02:27:27 +0200 |
| commit | d1a3470951bf7b34d79444047381d9ed4d09db39 (patch) | |
| tree | fcf08d9b423a2480007c04cb084fe19c68daed16 /login-utils | |
| parent | e61e66bd95e20d1a9a101c5a2efb4c638ca732f1 (diff) | |
| download | util-linux-d1a3470951bf7b34d79444047381d9ed4d09db39.tar.gz | |
agetty: check gethostname() return value
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'login-utils')
| -rw-r--r-- | login-utils/agetty.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/login-utils/agetty.c b/login-utils/agetty.c index c8271039..b7ae536f 100644 --- a/login-utils/agetty.c +++ b/login-utils/agetty.c @@ -880,12 +880,11 @@ do_prompt(op, tp) case 'o': { - char domainname[256]; + char domainname[HOST_NAME_MAX+1]; #ifdef HAVE_GETDOMAINNAME - getdomainname(domainname, sizeof(domainname)); -#else - strcpy(domainname, "unknown_domain"); + if (getdomainname(domainname, sizeof(domainname))) #endif + strcpy(domainname, "unknown_domain"); domainname[sizeof(domainname)-1] = '\0'; printf ("%s", domainname); } @@ -988,14 +987,11 @@ do_prompt(op, tp) (void) fclose(fd); } #endif -#ifdef __linux__ - { - char hn[MAXHOSTNAMELEN+1]; - - (void) gethostname(hn, MAXHOSTNAMELEN); - write(1, hn, strlen(hn)); - } -#endif + { + char hn[HOST_NAME_MAX+1]; + if (gethostname(hn, sizeof(hn)) == 0) + write(1, hn, strlen(hn)); + } (void) write(1, LOGIN, sizeof(LOGIN) - 1); /* always show login prompt */ } |