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Code Issues Releases Activity

Treat host name buffers consistently.

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This commit is contained in:
Yaroslav Tykhiy 2004-11-22 10:16:43 +00:00
parent 38fa13a6a2
commit 04683b2c35
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=137983
1 changed files with 23 additions and 12 deletions
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35
libexec/ftpd/ftpd.c
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@ -174,7 +174,7 @@ static struct ftphost {
} *thishost, *firsthost;
#endif
char remotehost[MAXHOSTNAMELEN];
char remotehost[NI_MAXHOST];
char *ident = NULL;
static char ttyline[20];
@ -597,7 +597,8 @@ main(int argc, char *argv[], char **envp)
#ifndef VIRTUAL_HOSTING
if ((hostname = malloc(MAXHOSTNAMELEN)) == NULL)
fatalerror("Ran out of memory.");
(void) gethostname(hostname, MAXHOSTNAMELEN - 1);
if (gethostname(hostname, MAXHOSTNAMELEN - 1) < 0)
hostname[0] = '\0';
hostname[MAXHOSTNAMELEN - 1] = '\0';
#endif
if (hostinfo)
@ -648,7 +649,7 @@ inithosts(void)
*/
if ((hostname = malloc(MAXHOSTNAMELEN)) == NULL)
fatalerror("Ran out of memory.");
if (gethostname(hostname, MAXHOSTNAMELEN) < 0)
if (gethostname(hostname, MAXHOSTNAMELEN - 1) < 0)
hostname[0] = '\0';
hostname[MAXHOSTNAMELEN - 1] = '\0';
if ((hrp = malloc(sizeof(struct ftphost))) == NULL)
@ -1397,11 +1398,12 @@ pass(char *passwd)
(void) umask(defumask);
#ifdef LOGIN_CAP
if ((lc = login_getpwclass(pw)) != NULL) {
char remote_ip[MAXHOSTNAMELEN];
char remote_ip[NI_MAXHOST];
getnameinfo((struct sockaddr *)&his_addr, his_addr.su_len,
if (getnameinfo((struct sockaddr *)&his_addr, his_addr.su_len,
remote_ip, sizeof(remote_ip) - 1, NULL, 0,
NI_NUMERICHOST);
NI_NUMERICHOST))
*remote_ip = 0;
remote_ip[sizeof(remote_ip) - 1] = 0;
if (!auth_hostok(lc, remotehost, remote_ip)) {
syslog(LOG_INFO|LOG_AUTH,
@ -1931,11 +1933,16 @@ dataconn(char *name, off_t size, char *mode)
do {
file = getdatasock(mode);
if (file == NULL) {
char hostbuf[BUFSIZ], portbuf[BUFSIZ];
getnameinfo((struct sockaddr *)&data_source,
data_source.su_len, hostbuf, sizeof(hostbuf) - 1,
portbuf, sizeof(portbuf),
NI_NUMERICHOST|NI_NUMERICSERV);
char hostbuf[NI_MAXHOST], portbuf[NI_MAXSERV];
if (getnameinfo((struct sockaddr *)&data_source,
data_source.su_len,
hostbuf, sizeof(hostbuf) - 1,
portbuf, sizeof(portbuf) - 1,
NI_NUMERICHOST|NI_NUMERICSERV))
*hostbuf = *portbuf = 0;
hostbuf[sizeof(hostbuf) - 1] = 0;
portbuf[sizeof(portbuf) - 1] = 0;
reply(425, "Can't create data socket (%s,%s): %s.",
hostbuf, portbuf, strerror(errno));
return (NULL);
@ -2257,6 +2264,7 @@ statcmd(void)
printf(" Connected to %s", remotehost);
if (!getnameinfo((struct sockaddr *)&his_addr, his_addr.su_len,
hname, sizeof(hname) - 1, NULL, 0, NI_NUMERICHOST)) {
hname[sizeof(hname) - 1] = 0;
if (strcmp(hname, remotehost) != 0)
printf(" (%s)", hname);
}
@ -2362,6 +2370,7 @@ epsvonly:;
if (!getnameinfo((struct sockaddr *)&tmp, tmp.su_len,
hname, sizeof(hname) - 1, NULL, 0,
NI_NUMERICHOST)) {
hname[sizeof(hname) - 1] = 0;
printf(" %s |%d|%s|%d|\r\n",
ispassive ? "EPSV" : "EPRT",
af, hname, htons(tmp.su_port));
@ -2571,6 +2580,7 @@ dolog(struct sockaddr *who)
int error;
realhostname_sa(remotehost, sizeof(remotehost) - 1, who, who->sa_len);
remotehost[sizeof(remotehost) - 1] = 0;
#ifdef SETPROCTITLE
#ifdef VIRTUAL_HOSTING
@ -2592,11 +2602,12 @@ dolog(struct sockaddr *who)
else
#endif
{
char who_name[MAXHOSTNAMELEN];
char who_name[NI_MAXHOST];
error = getnameinfo(who, who->sa_len,
who_name, sizeof(who_name) - 1,
NULL, 0, NI_NUMERICHOST);
who_name[sizeof(who_name) - 1] = 0;
syslog(LOG_INFO, "connection from %s (%s)", remotehost,
error == 0 ? who_name : "");
}