diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/url.c | 49 |
1 files changed, 37 insertions, 12 deletions
@@ -1687,7 +1687,7 @@ static bool is_ASCII_name(const char *hostname) /* * Perform any necessary IDN conversion of hostname */ -static void fix_hostname(struct connectdata *conn, struct hostname *host) +static CURLcode fix_hostname(struct connectdata *conn, struct hostname *host) { size_t len; struct Curl_easy *data = conn->data; @@ -1727,9 +1727,11 @@ static void fix_hostname(struct connectdata *conn, struct hostname *host) /* change the name pointer to point to the encoded hostname */ host->name = host->encalloc; } - else - infof(data, "Failed to convert %s to ACE; %s\n", host->name, + else { + failf(data, "Failed to convert %s to ACE; %s\n", host->name, idn2_strerror(rc)); + return CURLE_URL_MALFORMAT; + } } #elif defined(USE_WIN32_IDN) char *ace_hostname = NULL; @@ -1739,12 +1741,24 @@ static void fix_hostname(struct connectdata *conn, struct hostname *host) /* change the name pointer to point to the encoded hostname */ host->name = host->encalloc; } - else - infof(data, "Failed to convert %s to ACE;\n", host->name); + else { + failf(data, "Failed to convert %s to ACE;\n", host->name); + return CURLE_URL_MALFORMAT; + } #else infof(data, "IDN support not present, can't parse Unicode domains\n"); #endif } + { + char *hostp; + for(hostp = host->name; *hostp; hostp++) { + if(*hostp <= 32) { + failf(data, "Host name '%s' contains bad letter", host->name); + return CURLE_URL_MALFORMAT; + } + } + } + return CURLE_OK; } /* @@ -4178,13 +4192,24 @@ static CURLcode create_conn(struct Curl_easy *data, /************************************************************* * IDN-fix the hostnames *************************************************************/ - fix_hostname(conn, &conn->host); - if(conn->bits.conn_to_host) - fix_hostname(conn, &conn->conn_to_host); - if(conn->bits.httpproxy) - fix_hostname(conn, &conn->http_proxy.host); - if(conn->bits.socksproxy) - fix_hostname(conn, &conn->socks_proxy.host); + result = fix_hostname(conn, &conn->host); + if(result) + goto out; + if(conn->bits.conn_to_host) { + result = fix_hostname(conn, &conn->conn_to_host); + if(result) + goto out; + } + if(conn->bits.httpproxy) { + result = fix_hostname(conn, &conn->http_proxy.host); + if(result) + goto out; + } + if(conn->bits.socksproxy) { + result = fix_hostname(conn, &conn->socks_proxy.host); + if(result) + goto out; + } /************************************************************* * Check whether the host and the "connect to host" are equal. |