diff options
Diffstat (limited to 'libbb/xconnect.c')
| -rw-r--r-- | libbb/xconnect.c | 33 |
1 files changed, 15 insertions, 18 deletions
diff --git a/libbb/xconnect.c b/libbb/xconnect.c index 2cbc840..b3619fd 100644 --- a/libbb/xconnect.c +++ b/libbb/xconnect.c @@ -18,30 +18,31 @@ #include <arpa/inet.h> #include "libbb.h" -int bb_getport(const char *port) +/* Return network byte ordered port number for a service. + * If "port" is a number use it as the port. + * If "port" is a name it is looked up in /etc/services, if it isnt found return + * default_port + */ +unsigned short bb_lookup_port(const char *port, unsigned short default_port) { - int port_nr; + unsigned short port_nr = htons(default_port); + if (port) { char *endptr; - struct servent *tserv; + long port_long = strtol(port, &endptr, 10); - if (!port) { - return -1; - } - port_nr=strtol(port, &endptr, 10); - if (errno != 0 || *endptr!='\0' || endptr==port || port_nr < 1 || port_nr > 65536) - { - if (port_nr==0 && (tserv = getservbyname(port, "tcp")) != NULL) { + if (errno != 0 || *endptr!='\0' || endptr==port || port_long < 0 || port_long > 65535) { + struct servent *tserv = getservbyname(port, "tcp"); + if (tserv) { port_nr = tserv->s_port; - } else { - return -1; } } else { - port_nr = htons(port_nr); + port_nr = htons(port_long); + } } return port_nr; } -void bb_lookup_host(struct sockaddr_in *s_in, const char *host, const char *port) +void bb_lookup_host(struct sockaddr_in *s_in, const char *host) { struct hostent *he; @@ -49,10 +50,6 @@ void bb_lookup_host(struct sockaddr_in *s_in, const char *host, const char *port s_in->sin_family = AF_INET; he = xgethostbyname(host); memcpy(&(s_in->sin_addr), he->h_addr_list[0], he->h_length); - - if (port) { - s_in->sin_port=bb_getport(port); - } } int xconnect(struct sockaddr_in *s_addr) |