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https://github.com/sheumann/hush.git
synced 2024-09-12 15:54:56 +00:00
Fix leading spaces bug, free line buffer, redo next_word, save some
space.
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parent
147a3ca1a4
commit
8573704097
@ -604,27 +604,28 @@ address_family_t addr_inet = {
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#endif /* ifdef CONFIG_FEATURE_IFUPDOWN_IPV4 */
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static char *next_word(char *buf, char *word, int maxlen)
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static char *next_word(char **buf)
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{
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if (!buf)
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unsigned short length;
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char *word;
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if ((buf == NULL) || (*buf == NULL) || (**buf == '\0')) {
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return NULL;
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if (!*buf)
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return NULL;
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while (!isspace(*buf) && *buf) {
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if (maxlen-- > 1)
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*word++ = *buf;
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buf++;
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}
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if (maxlen > 0) {
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*word = '\0';
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}
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while (isspace(*buf) && *buf) {
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buf++;
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}
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/* Skip over leading whitespace */
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word = *buf + strspn(*buf, " \t\n");
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return buf;
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/* Find the length of this word */
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length = strcspn(word, " \t\n");
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if (length == 0) {
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return(NULL);
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}
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*buf = word + length;
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**buf = '\0';
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(*buf)++;
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return word;
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}
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static address_family_t *get_address_family(address_family_t *af[], char *name)
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@ -675,44 +676,34 @@ static const llist_t *find_list_string(const llist_t *list, const char *string)
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static interfaces_file_t *read_interfaces(char *filename)
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{
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interface_defn_t *currif = NULL;
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interfaces_file_t *defn;
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#ifdef CONFIG_FEATURE_IFUPDOWN_MAPPING
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mapping_defn_t *currmap = NULL;
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#endif
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interface_defn_t *currif = NULL;
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interfaces_file_t *defn;
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FILE *f;
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char firstword[80];
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char *buf = NULL;
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char *rest;
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// int line;
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char *firstword;
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char *buf;
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enum { NONE, IFACE, MAPPING } currently_processing = NONE;
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defn = xmalloc(sizeof(interfaces_file_t));
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// defn->max_autointerfaces = defn->n_autointerfaces = 0;
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defn->autointerfaces = NULL;
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defn->mappings = NULL;
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defn->ifaces = NULL;
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f = fopen(filename, "r");
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if (f == NULL) {
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return NULL;
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}
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f = xfopen(filename, "r");
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while ((buf = get_line_from_file(f)) != NULL) {
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char *end;
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char *buf_ptr = buf;
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/* Ignore comments */
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if (buf[0] == '#') {
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continue;
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}
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end = last_char_is(buf, '\n');
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if (end) {
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*end = '\0';
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}
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while ((end = last_char_is(buf, ' ')) != NULL) {
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*end = '\0';
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}
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rest = next_word(buf, firstword, 80);
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if (rest == NULL) {
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firstword = next_word(&buf_ptr);
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if (firstword == NULL) {
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continue; /* blank line */
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}
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@ -723,7 +714,7 @@ static interfaces_file_t *read_interfaces(char *filename)
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currmap->n_matches = 0;
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currmap->match = NULL;
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while ((rest = next_word(rest, firstword, 80))) {
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while ((firstword = next_word(&buf_ptr)) != NULL) {
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if (currmap->max_matches == currmap->n_matches) {
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currmap->max_matches = currmap->max_matches * 2 + 1;
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currmap->match = xrealloc(currmap->match, sizeof(currmap->match) * currmap->max_matches);
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@ -747,9 +738,9 @@ static interfaces_file_t *read_interfaces(char *filename)
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currently_processing = MAPPING;
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} else if (strcmp(firstword, "iface") == 0) {
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{
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char iface_name[80];
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char address_family_name[80];
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char method_name[80];
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char *iface_name;
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char *address_family_name;
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char *method_name;
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address_family_t *addr_fams[] = {
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#ifdef CONFIG_FEATURE_IFUPDOWN_IPV4
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&addr_inet,
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@ -764,17 +755,16 @@ static interfaces_file_t *read_interfaces(char *filename)
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};
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currif = xmalloc(sizeof(interface_defn_t));
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iface_name = next_word(&buf_ptr);
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address_family_name = next_word(&buf_ptr);
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method_name = next_word(&buf_ptr);
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rest = next_word(rest, iface_name, 80);
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rest = next_word(rest, address_family_name, 80);
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rest = next_word(rest, method_name, 80);
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if (rest == NULL) {
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if (buf_ptr == NULL) {
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error_msg("too few parameters for line \"%s\"", buf);
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return NULL;
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}
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if (rest[0] != '\0') {
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if (buf_ptr[0] != '\0') {
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error_msg("too many parameters \"%s\"", buf);
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return NULL;
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}
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@ -816,7 +806,7 @@ static interfaces_file_t *read_interfaces(char *filename)
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}
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currently_processing = IFACE;
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} else if (strcmp(firstword, "auto") == 0) {
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while ((rest = next_word(rest, firstword, 80))) {
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while ((firstword = next_word(&buf_ptr)) != NULL) {
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/* Check the interface isnt already listed */
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if (find_list_string(defn->autointerfaces, firstword)) {
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@ -833,7 +823,7 @@ static interfaces_file_t *read_interfaces(char *filename)
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{
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int i;
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if (xstrlen(rest) == 0) {
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if (xstrlen(buf_ptr) == 0) {
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error_msg("option with empty value \"%s\"", buf);
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return NULL;
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}
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@ -858,7 +848,7 @@ static interfaces_file_t *read_interfaces(char *filename)
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currif->option = opt;
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}
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currif->option[currif->n_options].name = xstrdup(firstword);
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currif->option[currif->n_options].value = xstrdup(rest);
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currif->option[currif->n_options].value = xstrdup(next_word(&buf_ptr));
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if (!currif->option[currif->n_options].name) {
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perror(filename);
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return NULL;
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@ -876,14 +866,14 @@ static interfaces_file_t *read_interfaces(char *filename)
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error_msg("duplicate script in mapping \"%s\"", buf);
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return NULL;
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} else {
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currmap->script = xstrdup(rest);
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currmap->script = xstrdup(next_word(&buf_ptr));
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}
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} else if (strcmp(firstword, "map") == 0) {
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if (currmap->max_mappings == currmap->n_mappings) {
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currmap->max_mappings = currmap->max_mappings * 2 + 1;
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currmap->mapping = xrealloc(currmap->mapping, sizeof(char *) * currmap->max_mappings);
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}
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currmap->mapping[currmap->n_mappings] = xstrdup(rest);
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currmap->mapping[currmap->n_mappings] = xstrdup(next_word(&buf_ptr));
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currmap->n_mappings++;
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} else {
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error_msg("misplaced option \"%s\"", buf);
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@ -897,10 +887,10 @@ static interfaces_file_t *read_interfaces(char *filename)
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return NULL;
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}
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}
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free(buf);
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}
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if (ferror(f) != 0) {
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perror_msg("%s", filename);
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return NULL;
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perror_msg_and_die("%s", filename);
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}
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fclose(f);
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@ -1230,9 +1220,6 @@ extern int ifupdown_main(int argc, char **argv)
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}
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defn = read_interfaces(interfaces);
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if (!defn) {
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error_msg_and_die("couldn't read interfaces file \"%s\"", interfaces);
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}
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if (no_act) {
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state_fp = fopen(statefile, "r");
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