#define EUNDEFVAR 10002
#define EUNBALPER 10000
-#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
+#if ENABLE_FEATURE_IFUPDOWN_MAPPING
#define MAX_INTERFACE_LENGTH 10
#endif
-#define debug_noise(fmt, args...)
+#define debug_noise(args...) /*fprintf(stderr, args)*/
/* Forward declaration */
struct interface_defn_t;
-typedef int (execfn)(char *command);
+typedef int execfn(char *command);
struct method_t
{
struct mapping_defn_t *mappings;
};
-static unsigned option_mask;
#define OPTION_STR "anvf" USE_FEATURE_IFUPDOWN_MAPPING("m") "i:"
enum {
OPT_do_all = 0x1,
OPT_force = 0x8,
OPT_no_mappings = 0x10,
};
-#define DO_ALL (option_mask & OPT_do_all)
-#define NO_ACT (option_mask & OPT_no_act)
-#define VERBOSE (option_mask & OPT_verbose)
-#define FORCE (option_mask & OPT_force)
-#define NO_MAPPINGS (option_mask & OPT_no_mappings)
+#define DO_ALL (option_mask32 & OPT_do_all)
+#define NO_ACT (option_mask32 & OPT_no_act)
+#define VERBOSE (option_mask32 & OPT_verbose)
+#define FORCE (option_mask32 & OPT_force)
+#define NO_MAPPINGS (option_mask32 & OPT_no_mappings)
-static char **__myenviron;
+static char **my_environ;
static char *startup_PATH;
#if ENABLE_FEATURE_IFUPDOWN_IPV4 || ENABLE_FEATURE_IFUPDOWN_IPV6
-#ifdef CONFIG_FEATURE_IFUPDOWN_IP
+#if ENABLE_FEATURE_IFUPDOWN_IP
-static unsigned int count_bits(unsigned int a)
+static unsigned count_bits(unsigned a)
{
- unsigned int result;
+ unsigned result;
result = (a & 0x55) + ((a >> 1) & 0x55);
result = (result & 0x33) + ((result >> 2) & 0x33);
- return ((result & 0x0F) + ((result >> 4) & 0x0F));
+ return (result & 0x0F) + ((result >> 4) & 0x0F);
}
static int count_netmask_bits(char *dotted_quad)
{
- unsigned int result, a, b, c, d;
+ unsigned result, a, b, c, d;
/* Found a netmask... Check if it is dotted quad */
if (sscanf(dotted_quad, "%u.%u.%u.%u", &a, &b, &c, &d) != 4)
return -1;
+ // FIXME: will be confused by e.g. 255.0.255.0
result = count_bits(a);
result += count_bits(b);
result += count_bits(c);
}
#endif
-static void addstr(char **buf, size_t *len, size_t *pos, char *str, size_t str_length)
+static void addstr(char **bufp, const char *str, size_t str_length)
{
- if (*pos + str_length >= *len) {
- char *newbuf;
-
- newbuf = xrealloc(*buf, *len * 2 + str_length + 1);
- *buf = newbuf;
- *len = *len * 2 + str_length + 1;
- }
-
- while (str_length-- >= 1) {
- (*buf)[(*pos)++] = *str;
- str++;
- }
- (*buf)[*pos] = '\0';
+ /* xasprintf trick will be smaller, but we are often
+ * called with str_length == 1 - don't want to have
+ * THAT much of malloc/freeing! */
+ char *buf = *bufp;
+ int len = (buf ? strlen(buf) : 0);
+ str_length++;
+ buf = xrealloc(buf, len + str_length);
+ /* copies at most str_length-1 chars! */
+ safe_strncpy(buf + len, str, str_length);
+ *bufp = buf;
}
-static int strncmpz(char *l, char *r, size_t llen)
+static int strncmpz(const char *l, const char *r, size_t llen)
{
int i = strncmp(l, r, llen);
- if (i == 0) {
+ if (i == 0)
return -r[llen];
- } else {
- return i;
- }
+ return i;
}
-static char *get_var(char *id, size_t idlen, struct interface_defn_t *ifd)
+static char *get_var(const char *id, size_t idlen, struct interface_defn_t *ifd)
{
int i;
if (strncmpz(id, "iface", idlen) == 0) {
char *result;
static char label_buf[20];
- strncpy(label_buf, ifd->iface, 19);
- label_buf[19]=0;
+ safe_strncpy(label_buf, ifd->iface, sizeof(label_buf));
result = strchr(label_buf, ':');
if (result) {
- *result=0;
+ *result = '\0';
}
return label_buf;
- } else if (strncmpz(id, "label", idlen) == 0) {
+ }
+ if (strncmpz(id, "label", idlen) == 0) {
return ifd->iface;
- } else {
- for (i = 0; i < ifd->n_options; i++) {
- if (strncmpz(id, ifd->option[i].name, idlen) == 0) {
- return ifd->option[i].value;
- }
+ }
+ for (i = 0; i < ifd->n_options; i++) {
+ if (strncmpz(id, ifd->option[i].name, idlen) == 0) {
+ return ifd->option[i].value;
}
}
-
return NULL;
}
-static char *parse(char *command, struct interface_defn_t *ifd)
+static char *parse(const char *command, struct interface_defn_t *ifd)
{
-
- char *result = NULL;
- size_t pos = 0, len = 0;
size_t old_pos[MAX_OPT_DEPTH] = { 0 };
int okay[MAX_OPT_DEPTH] = { 1 };
int opt_depth = 1;
+ char *result = NULL;
while (*command) {
switch (*command) {
default:
- addstr(&result, &len, &pos, command, 1);
+ addstr(&result, command, 1);
command++;
break;
case '\\':
if (command[1]) {
- addstr(&result, &len, &pos, command + 1, 1);
+ addstr(&result, command + 1, 1);
command += 2;
} else {
- addstr(&result, &len, &pos, command, 1);
+ addstr(&result, command, 1);
command++;
}
break;
case '[':
if (command[1] == '[' && opt_depth < MAX_OPT_DEPTH) {
- old_pos[opt_depth] = pos;
+ old_pos[opt_depth] = result ? strlen(result) : 0;
okay[opt_depth] = 1;
opt_depth++;
command += 2;
} else {
- addstr(&result, &len, &pos, "[", 1);
+ addstr(&result, "[", 1);
command++;
}
break;
if (command[1] == ']' && opt_depth > 1) {
opt_depth--;
if (!okay[opt_depth]) {
- pos = old_pos[opt_depth];
- result[pos] = '\0';
+ result[old_pos[opt_depth]] = '\0';
}
command += 2;
} else {
- addstr(&result, &len, &pos, "]", 1);
+ addstr(&result, "]", 1);
command++;
}
break;
varvalue = get_var(command, nextpercent - command, ifd);
if (varvalue) {
- addstr(&result, &len, &pos, varvalue, strlen(varvalue));
+ addstr(&result, varvalue, strlen(varvalue));
} else {
-#ifdef CONFIG_FEATURE_IFUPDOWN_IP
+#if ENABLE_FEATURE_IFUPDOWN_IP
/* Sigh... Add a special case for 'ip' to convert from
* dotted quad to bit count style netmasks. */
- if (strncmp(command, "bnmask", 6)==0) {
- int res;
+ if (strncmp(command, "bnmask", 6) == 0) {
+ unsigned res;
varvalue = get_var("netmask", 7, ifd);
- if (varvalue && (res=count_netmask_bits(varvalue)) > 0) {
- char argument[255];
- sprintf(argument, "%d", res);
- addstr(&result, &len, &pos, argument, strlen(argument));
+ if (varvalue && (res = count_netmask_bits(varvalue)) > 0) {
+ const char *argument = utoa(res);
+ addstr(&result, argument, strlen(argument));
command = nextpercent + 1;
break;
}
}
/* execute() returns 1 for success and 0 for failure */
-static int execute(char *command, struct interface_defn_t *ifd, execfn *exec)
+static int execute(const char *command, struct interface_defn_t *ifd, execfn *exec)
{
char *out;
int ret;
out = parse(command, ifd);
if (!out) {
+ /* parse error? */
return 0;
}
- ret = (*exec)(out);
+ /* out == "": parsed ok but not all needed variables known, skip */
+ ret = out[0] ? (*exec)(out) : 1;
free(out);
if (ret != 1) {
}
#endif
-#ifdef CONFIG_FEATURE_IFUPDOWN_IPV6
+#if ENABLE_FEATURE_IFUPDOWN_IPV6
static int loopback_up6(struct interface_defn_t *ifd, execfn *exec)
{
-#ifdef CONFIG_FEATURE_IFUPDOWN_IP
+#if ENABLE_FEATURE_IFUPDOWN_IP
int result;
result = execute("ip addr add ::1 dev %iface%", ifd, exec);
result += execute("ip link set %iface% up", ifd, exec);
static int loopback_down6(struct interface_defn_t *ifd, execfn *exec)
{
-#ifdef CONFIG_FEATURE_IFUPDOWN_IP
+#if ENABLE_FEATURE_IFUPDOWN_IP
return execute("ip link set %iface% down", ifd, exec);
#else
return execute("ifconfig %iface% del ::1", ifd, exec);
static int static_up6(struct interface_defn_t *ifd, execfn *exec)
{
int result;
-#ifdef CONFIG_FEATURE_IFUPDOWN_IP
- result = execute("ip addr add %address%/%netmask% dev %iface% [[label %label%]]", ifd, exec);
- result += execute("ip link set [[mtu %mtu%]] [[address %hwaddress%]] %iface% up", ifd, exec);
- result += execute("[[ ip route add ::/0 via %gateway% ]]", ifd, exec);
+#if ENABLE_FEATURE_IFUPDOWN_IP
+ result = execute("ip addr add %address%/%netmask% dev %iface%[[ label %label%]]", ifd, exec);
+ result += execute("ip link set[[ mtu %mtu%]][[ address %hwaddress%]] %iface% up", ifd, exec);
+ /* Was: "[[ ip ....%gateway% ]]". Removed extra spaces w/o checking */
+ result += execute("[[ip route add ::/0 via %gateway%]]", ifd, exec);
#else
- result = execute("ifconfig %iface% [[media %media%]] [[hw %hwaddress%]] [[mtu %mtu%]] up", ifd, exec);
+ result = execute("ifconfig %iface%[[ media %media%]][[ hw %hwaddress%]][[ mtu %mtu%]] up", ifd, exec);
result += execute("ifconfig %iface% add %address%/%netmask%", ifd, exec);
- result += execute("[[ route -A inet6 add ::/0 gw %gateway% ]]", ifd, exec);
+ result += execute("[[route -A inet6 add ::/0 gw %gateway%]]", ifd, exec);
#endif
return ((result == 3) ? 3 : 0);
}
static int static_down6(struct interface_defn_t *ifd, execfn *exec)
{
-#ifdef CONFIG_FEATURE_IFUPDOWN_IP
+#if ENABLE_FEATURE_IFUPDOWN_IP
return execute("ip link set %iface% down", ifd, exec);
#else
return execute("ifconfig %iface% down", ifd, exec);
#endif
}
-#ifdef CONFIG_FEATURE_IFUPDOWN_IP
+#if ENABLE_FEATURE_IFUPDOWN_IP
static int v4tunnel_up(struct interface_defn_t *ifd, execfn *exec)
{
int result;
result = execute("ip tunnel add %iface% mode sit remote "
- "%endpoint% [[local %local%]] [[ttl %ttl%]]", ifd, exec);
+ "%endpoint%[[ local %local%]][[ ttl %ttl%]]", ifd, exec);
result += execute("ip link set %iface% up", ifd, exec);
result += execute("ip addr add %address%/%netmask% dev %iface%", ifd, exec);
- result += execute("[[ ip route add ::/0 via %gateway% ]]", ifd, exec);
+ result += execute("[[ip route add ::/0 via %gateway%]]", ifd, exec);
return ((result == 4) ? 4 : 0);
}
#endif
static const struct method_t methods6[] = {
-#ifdef CONFIG_FEATURE_IFUPDOWN_IP
+#if ENABLE_FEATURE_IFUPDOWN_IP
{ "v4tunnel", v4tunnel_up, v4tunnel_down, },
#endif
{ "static", static_up6, static_down6, },
sizeof(methods6) / sizeof(struct method_t),
methods6
};
-#endif /* CONFIG_FEATURE_IFUPDOWN_IPV6 */
+#endif /* FEATURE_IFUPDOWN_IPV6 */
-#ifdef CONFIG_FEATURE_IFUPDOWN_IPV4
+#if ENABLE_FEATURE_IFUPDOWN_IPV4
static int loopback_up(struct interface_defn_t *ifd, execfn *exec)
{
-#ifdef CONFIG_FEATURE_IFUPDOWN_IP
+#if ENABLE_FEATURE_IFUPDOWN_IP
int result;
result = execute("ip addr add 127.0.0.1/8 dev %iface%", ifd, exec);
result += execute("ip link set %iface% up", ifd, exec);
static int loopback_down(struct interface_defn_t *ifd, execfn *exec)
{
-#ifdef CONFIG_FEATURE_IFUPDOWN_IP
+#if ENABLE_FEATURE_IFUPDOWN_IP
int result;
result = execute("ip addr flush dev %iface%", ifd, exec);
result += execute("ip link set %iface% down", ifd, exec);
static int static_up(struct interface_defn_t *ifd, execfn *exec)
{
int result;
-#ifdef CONFIG_FEATURE_IFUPDOWN_IP
- result = execute("ip addr add %address%/%bnmask% [[broadcast %broadcast%]] "
- "dev %iface% [[peer %pointopoint%]] [[label %label%]]", ifd, exec);
- result += execute("ip link set [[mtu %mtu%]] [[address %hwaddress%]] %iface% up", ifd, exec);
- result += execute("[[ ip route add default via %gateway% dev %iface% ]]", ifd, exec);
+#if ENABLE_FEATURE_IFUPDOWN_IP
+ result = execute("ip addr add %address%/%bnmask%[[ broadcast %broadcast%]] "
+ "dev %iface%[[ peer %pointopoint%]][[ label %label%]]", ifd, exec);
+ result += execute("ip link set[[ mtu %mtu%]][[ address %hwaddress%]] %iface% up", ifd, exec);
+ result += execute("[[ip route add default via %gateway% dev %iface%]]", ifd, exec);
return ((result == 3) ? 3 : 0);
#else
- result = execute("ifconfig %iface% %address% netmask %netmask% "
- "[[broadcast %broadcast%]] [[pointopoint %pointopoint%]] "
- "[[media %media%]] [[mtu %mtu%]] [[hw %hwaddress%]] up",
- ifd, exec);
- result += execute("[[ route add default gw %gateway% %iface% ]]", ifd, exec);
- return ((result == 2) ? 2 : 0);
+ /* ifconfig said to set iface up before it processes hw %hwaddress%,
+ * which then of course fails. Thus we run two separate ifconfig */
+ result = execute("ifconfig %iface%[[ hw %hwaddress%]][[ media %media%]][[ mtu %mtu%]] up",
+ ifd, exec);
+ result += execute("ifconfig %iface% %address% netmask %netmask%"
+ "[[ broadcast %broadcast%]][[ pointopoint %pointopoint%]] ",
+ ifd, exec);
+ result += execute("[[route add default gw %gateway% %iface%]]", ifd, exec);
+ return ((result == 3) ? 3 : 0);
#endif
}
static int static_down(struct interface_defn_t *ifd, execfn *exec)
{
int result;
-#ifdef CONFIG_FEATURE_IFUPDOWN_IP
+#if ENABLE_FEATURE_IFUPDOWN_IP
result = execute("ip addr flush dev %iface%", ifd, exec);
result += execute("ip link set %iface% down", ifd, exec);
#else
- result = execute("[[ route del default gw %gateway% %iface% ]]", ifd, exec);
+ result = execute("[[route del default gw %gateway% %iface%]]", ifd, exec);
result += execute("ifconfig %iface% down", ifd, exec);
#endif
return ((result == 2) ? 2 : 0);
}
+#if !ENABLE_APP_UDHCPC
+struct dhcp_client_t
+{
+ const char *name;
+ const char *startcmd;
+ const char *stopcmd;
+};
+
+static const struct dhcp_client_t ext_dhcp_clients[] = {
+ { "udhcpc",
+ "udhcpc -R -n -p /var/run/udhcpc.%iface%.pid -i %iface%[[ -H %hostname%]][[ -c %clientid%]][[ -s %script%]]",
+ "kill -TERM `cat /var/run/udhcpc.%iface%.pid` 2>/dev/null",
+ },
+ { "pump",
+ "pump -i %iface%[[ -h %hostname%]][[ -l %leasehours%]]",
+ "pump -i %iface% -k",
+ },
+ { "dhclient",
+ "dhclient -pf /var/run/dhclient.%iface%.pid %iface%",
+ "kill -9 `cat /var/run/dhclient.%iface%.pid` 2>/dev/null",
+ },
+ { "dhcpcd",
+ "dhcpcd[[ -h %hostname%]][[ -i %vendor%]][[ -I %clientid%]][[ -l %leasetime%]] %iface%",
+ "dhcpcd -k %iface%",
+ },
+};
+#endif
+
static int dhcp_up(struct interface_defn_t *ifd, execfn *exec)
{
- if (execute("udhcpc -n -p /var/run/udhcpc.%iface%.pid -i "
- "%iface% [[-H %hostname%]] [[-c %clientid%]]", ifd, exec)) return 1;
- if (execute("pump -i %iface% [[-h %hostname%]] [[-l %leasehours%]]", ifd, exec)) return 1;
- if (execute("dhclient -pf /var/run/dhclient.%iface%.pid %iface%", ifd, exec)) return 1;
- if (execute("dhcpcd [[-h %hostname%]] [[-i %vendor%]] [[-I %clientid%]] "
- "[[-l %leasetime%]] %iface%", ifd, exec)) return 1;
+#if ENABLE_APP_UDHCPC
+ return execute("udhcpc -R -n -p /var/run/udhcpc.%iface%.pid "
+ "-i %iface%[[ -H %hostname%]][[ -c %clientid%]][[ -s %script%]]",
+ ifd, exec);
+#else
+ int i, nclients = sizeof(ext_dhcp_clients) / sizeof(ext_dhcp_clients[0]);
+ for (i = 0; i < nclients; i++) {
+ if (exists_execable(ext_dhcp_clients[i].name))
+ return execute(ext_dhcp_clients[i].startcmd, ifd, exec);
+ }
+ bb_error_msg("no dhcp clients found");
return 0;
+#endif
}
static int dhcp_down(struct interface_defn_t *ifd, execfn *exec)
{
- /* SIGUSR2 forces udhcpc to release the current lease and go inactive,
- * and SIGTERM causes udhcpc to exit. Signals are queued and processed
- * sequentially so we don't need to sleep */
- if (execute("kill -USR2 `cat /var/run/udhcpc.%iface%.pid` 2>/dev/null", ifd, exec)
- || execute("kill -TERM `cat /var/run/udhcpc.%iface%.pid` 2>/dev/null", ifd, exec))
- return 1;
- if (execute("pump -i %iface% -k", ifd, exec)) return 1;
- if (execute("kill -9 `cat /var/run/dhclient.%iface%.pid` 2>/dev/null", ifd, exec)) return 1;
- if (execute("dhcpcd -k %iface%", ifd, exec)) return 1;
+#if ENABLE_APP_UDHCPC
+ return execute("kill -TERM "
+ "`cat /var/run/udhcpc.%iface%.pid` 2>/dev/null", ifd, exec);
+#else
+ int i, nclients = sizeof(ext_dhcp_clients) / sizeof(ext_dhcp_clients[0]);
+ for (i = 0; i < nclients; i++) {
+ if (exists_execable(ext_dhcp_clients[i].name))
+ return execute(ext_dhcp_clients[i].stopcmd, ifd, exec);
+ }
+ bb_error_msg("no dhcp clients found, using static interface shutdown");
return static_down(ifd, exec);
+#endif
+}
+
+static int manual_up_down(struct interface_defn_t *ifd, execfn *exec)
+{
+ return 1;
}
static int bootp_up(struct interface_defn_t *ifd, execfn *exec)
{
- return execute("bootpc [[--bootfile %bootfile%]] --dev %iface% "
- "[[--server %server%]] [[--hwaddr %hwaddr%]] "
+ return execute("bootpc[[ --bootfile %bootfile%]] --dev %iface%"
+ "[[ --server %server%]][[ --hwaddr %hwaddr%]] "
"--returniffail --serverbcast", ifd, exec);
}
static int ppp_up(struct interface_defn_t *ifd, execfn *exec)
{
- return execute("pon [[%provider%]]", ifd, exec);
+ return execute("pon[[ %provider%]]", ifd, exec);
}
static int ppp_down(struct interface_defn_t *ifd, execfn *exec)
{
- return execute("poff [[%provider%]]", ifd, exec);
+ return execute("poff[[ %provider%]]", ifd, exec);
}
static int wvdial_up(struct interface_defn_t *ifd, execfn *exec)
{
- return execute("/sbin/start-stop-daemon --start -x /usr/bin/wvdial "
- "-p /var/run/wvdial.%iface% -b -m -- [[ %provider% ]]", ifd, exec);
+ return execute("start-stop-daemon --start -x wvdial "
+ "-p /var/run/wvdial.%iface% -b -m --[[ %provider%]]", ifd, exec);
}
static int wvdial_down(struct interface_defn_t *ifd, execfn *exec)
{
- return execute("/sbin/start-stop-daemon --stop -x /usr/bin/wvdial "
+ return execute("start-stop-daemon --stop -x wvdial "
"-p /var/run/wvdial.%iface% -s 2", ifd, exec);
}
static const struct method_t methods[] = {
+ { "manual", manual_up_down, manual_up_down, },
{ "wvdial", wvdial_up, wvdial_down, },
{ "ppp", ppp_up, ppp_down, },
{ "static", static_up, static_down, },
methods
};
-#endif /* ifdef CONFIG_FEATURE_IFUPDOWN_IPV4 */
+#endif /* if ENABLE_FEATURE_IFUPDOWN_IPV4 */
static char *next_word(char **buf)
{
unsigned short length;
char *word;
- if ((buf == NULL) || (*buf == NULL) || (**buf == '\0')) {
+ if (!buf || !*buf || !**buf) {
return NULL;
}
/* Skip over leading whitespace */
- word = *buf;
- while (isspace(*word)) {
- ++word;
- }
+ word = skip_whitespace(*buf);
/* Skip over comments */
if (*word == '#') {
{
int i;
+ if (!name)
+ return NULL;
+
for (i = 0; af[i]; i++) {
if (strcmp(af[i]->name, name) == 0) {
return af[i];
{
int i;
+ if (!name)
+ return NULL;
+
for (i = 0; i < af->n_methods; i++) {
if (strcmp(af->method[i].name, name) == 0) {
return &af->method[i];
static const llist_t *find_list_string(const llist_t *list, const char *string)
{
+ if (string == NULL)
+ return NULL;
+
while (list) {
if (strcmp(list->data, string) == 0) {
return list;
static struct interfaces_file_t *read_interfaces(const char *filename)
{
-#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
+#if ENABLE_FEATURE_IFUPDOWN_MAPPING
struct mapping_defn_t *currmap = NULL;
#endif
struct interface_defn_t *currif = NULL;
f = xfopen(filename, "r");
- while ((buf = bb_get_chomped_line_from_file(f)) != NULL) {
+ while ((buf = xmalloc_getline(f)) != NULL) {
char *buf_ptr = buf;
firstword = next_word(&buf_ptr);
}
if (strcmp(firstword, "mapping") == 0) {
-#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
+#if ENABLE_FEATURE_IFUPDOWN_MAPPING
currmap = xzalloc(sizeof(struct mapping_defn_t));
while ((firstword = next_word(&buf_ptr)) != NULL) {
currently_processing = MAPPING;
} else if (strcmp(firstword, "iface") == 0) {
static const struct address_family_t *const addr_fams[] = {
-#ifdef CONFIG_FEATURE_IFUPDOWN_IPV4
+#if ENABLE_FEATURE_IFUPDOWN_IPV4
&addr_inet,
#endif
-#ifdef CONFIG_FEATURE_IFUPDOWN_IPV6
+#if ENABLE_FEATURE_IFUPDOWN_IPV6
&addr_inet6,
#endif
NULL
}
/* ship any trailing whitespace */
- while (isspace(*buf_ptr)) {
- ++buf_ptr;
- }
+ buf_ptr = skip_whitespace(buf_ptr);
if (buf_ptr[0] != '\0') {
bb_error_msg("too many parameters \"%s\"", buf);
currif->n_options++;
break;
case MAPPING:
-#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
+#if ENABLE_FEATURE_IFUPDOWN_MAPPING
if (strcmp(firstword, "script") == 0) {
if (currmap->script != NULL) {
bb_error_msg("duplicate script in mapping \"%s\"", buf);
const int n_env_entries = iface->n_options + 5;
char **ppch;
- if (__myenviron != NULL) {
- for (ppch = __myenviron; *ppch; ppch++) {
+ if (my_environ != NULL) {
+ for (ppch = my_environ; *ppch; ppch++) {
free(*ppch);
*ppch = NULL;
}
- free(__myenviron);
+ free(my_environ);
}
- __myenviron = xzalloc(sizeof(char *) * (n_env_entries + 1 /* for final NULL */ ));
- environend = __myenviron;
+ my_environ = xzalloc(sizeof(char *) * (n_env_entries + 1 /* for final NULL */ ));
+ environend = my_environ;
for (i = 0; i < iface->n_options; i++) {
if (strcmp(iface->option[i].name, "up") == 0
static int doit(char *str)
{
- if (option_mask & (OPT_no_act|OPT_verbose)) {
+ if (option_mask32 & (OPT_no_act|OPT_verbose)) {
puts(str);
}
- if (!(option_mask & OPT_no_act)) {
+ if (!(option_mask32 & OPT_no_act)) {
pid_t child;
int status;
fflush(NULL);
- switch (child = fork()) {
- case -1: /* failure */
+ child = fork();
+ switch (child) {
+ case -1: /* failure */
return 0;
- case 0: /* child */
- execle(DEFAULT_SHELL, DEFAULT_SHELL, "-c", str, NULL, __myenviron);
+ case 0: /* child */
+ execle(DEFAULT_SHELL, DEFAULT_SHELL, "-c", str, NULL, my_environ);
exit(127);
}
waitpid(child, &status, 0);
}
buf = xasprintf("run-parts /etc/network/if-%s.d", opt);
- if (doit(buf) != 1) {
- return 0;
- }
- return 1;
+ /* heh, we don't bother free'ing it */
+ return doit(buf);
}
-static int check(char *str) {
+static int check(char *str)
+{
return str != NULL;
}
static int iface_up(struct interface_defn_t *iface)
{
- if (!iface->method->up(iface,check)) return -1;
+ if (!iface->method->up(iface, check)) return -1;
set_environ(iface, "start");
if (!execute_all(iface, "pre-up")) return 0;
if (!iface->method->up(iface, doit)) return 0;
return 1;
}
-#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
+#if ENABLE_FEATURE_IFUPDOWN_MAPPING
static int popen2(FILE **in, FILE **out, char *command, ...)
{
va_list ap;
/* If the mapping script exited successfully, try to
* grab a line of output and use that as the name of the
* logical interface. */
- char *new_logical = (char *)xmalloc(MAX_INTERFACE_LENGTH);
+ char *new_logical = xmalloc(MAX_INTERFACE_LENGTH);
if (fgets(new_logical, MAX_INTERFACE_LENGTH, out)) {
/* If we are able to read a line of output from the script,
return logical;
}
-#endif /* CONFIG_FEATURE_IFUPDOWN_MAPPING */
+#endif /* FEATURE_IFUPDOWN_MAPPING */
static llist_t *find_iface_state(llist_t *state_list, const char *iface)
{
int ifupdown_main(int argc, char **argv)
{
- static const char statefile[] = "/var/run/ifstate";
-
int (*cmds)(struct interface_defn_t *) = NULL;
struct interfaces_file_t *defn;
llist_t *state_list = NULL;
llist_t *target_list = NULL;
const char *interfaces = "/etc/network/interfaces";
int any_failures = 0;
- int i;
- if (bb_applet_name[2] == 'u') {
+ cmds = iface_down;
+ if (applet_name[2] == 'u') {
/* ifup command */
cmds = iface_up;
- } else {
- /* ifdown command */
- cmds = iface_down;
}
- option_mask = bb_getopt_ulflags(argc, argv, OPTION_STR, &interfaces);
+ getopt32(argc, argv, OPTION_STR, &interfaces);
if (argc - optind > 0) {
if (DO_ALL) bb_show_usage();
- } else
+ } else {
if (!DO_ALL) bb_show_usage();
+ }
debug_noise("reading %s file:\n", interfaces);
defn = read_interfaces(interfaces);
debug_noise("\ndone reading %s\n\n", interfaces);
if (!defn) {
- exit(EXIT_FAILURE);
+ return EXIT_FAILURE;
}
startup_PATH = getenv("PATH");
llist_add_to_end(&target_list, argv[optind]);
}
-
/* Update the interfaces */
while (target_list) {
llist_t *iface_list;
}
}
-#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
+#if ENABLE_FEATURE_IFUPDOWN_MAPPING
if ((cmds == iface_up) && !NO_MAPPINGS) {
struct mapping_defn_t *currmap;
for (currmap = defn->mappings; currmap; currmap = currmap->next) {
+ int i;
for (i = 0; i < currmap->n_matches; i++) {
if (fnmatch(currmap->match[i], liface, 0) != 0)
continue;
}
#endif
-
iface_list = defn->ifaces;
while (iface_list) {
currif = (struct interface_defn_t *) iface_list->data;
if (cmds_ret == -1) {
bb_error_msg("don't seem to have all the variables for %s/%s",
liface, currif->address_family->name);
- any_failures += 1;
+ any_failures = 1;
} else if (cmds_ret == 0) {
- any_failures += 1;
+ any_failures = 1;
}
currif->iface = oldiface;
if (!okay && !FORCE) {
bb_error_msg("ignoring unknown interface %s", liface);
- any_failures += 1;
+ any_failures = 1;
} else {
llist_t *iface_state = find_iface_state(state_list, iface);
/* Actually write the new state */
if (!NO_ACT) {
- FILE *state_fp = NULL;
+ FILE *state_fp;
- state_fp = xfopen(statefile, "w");
+ state_fp = xfopen("/var/run/ifstate", "w");
while (state_list) {
if (state_list->data) {
- fputs(state_list->data, state_fp);
- fputc('\n', state_fp);
+ fprintf(state_fp, "%s\n", state_list->data);
}
state_list = state_list->link;
}
fclose(state_fp);
}
- if (any_failures)
- return 1;
- return 0;
+ return any_failures;
}
projects / oweals / busybox.git / blobdiff