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The whois() function is called in a loop so make sure we close the

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socket to the whois server before returning.

Obtained from:	OpenBSD
This commit is contained in:
kevlo 2014-01-04 15:51:52 +00:00
parent 048eda83eb
commit 27b04cbc6f
1 changed files with 9 additions and 9 deletions
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18
usr.bin/whois/whois.c
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@ -275,7 +275,7 @@ s_asprintf(char **ret, const char *format, ...)
static void
whois(const char *query, const char *hostname, int flags)
{
FILE *sfi, *sfo;
FILE *fp;
struct addrinfo *hostres, *res;
char *buf, *host, *nhost, *p;
int i, s;
@ -295,20 +295,19 @@ whois(const char *query, const char *hostname, int flags)
if (res == NULL)
err(EX_OSERR, "connect()");
sfi = fdopen(s, "r");
sfo = fdopen(s, "w");
if (sfi == NULL || sfo == NULL)
fp = fdopen(s, "r+");
if (fp == NULL)
err(EX_OSERR, "fdopen()");
if (strcmp(hostname, GERMNICHOST) == 0) {
fprintf(sfo, "-T dn,ace -C US-ASCII %s\r\n", query);
fprintf(fp, "-T dn,ace -C US-ASCII %s\r\n", query);
} else if (strcmp(hostname, "dk" QNICHOST_TAIL) == 0) {
fprintf(sfo, "--show-handles %s\r\n", query);
fprintf(fp, "--show-handles %s\r\n", query);
} else {
fprintf(sfo, "%s\r\n", query);
fprintf(fp, "%s\r\n", query);
}
fflush(sfo);
fflush(fp);
nhost = NULL;
while ((buf = fgetln(sfi, &len)) != NULL) {
while ((buf = fgetln(fp, &len)) != NULL) {
while (len > 0 && isspace((unsigned char)buf[len - 1]))
buf[--len] = '\0';
printf("%.*s\n", (int)len, buf);
@ -350,6 +349,7 @@ whois(const char *query, const char *hostname, int flags)
}
}
}
fclose(fp);
if (nhost != NULL) {
whois(query, nhost, 0);
free(nhost);