void ifparser_init (const char *eni_file, int quiet)
{
FILE *inp = fopen (eni_file, "r");
char line[255];
int skip_to_block = 1;
int skip_long_line = 0;
int offs = 0;
if (inp == NULL) {
if (!quiet)
g_warning ("Error: Can't open %s\n", eni_file);
return;
}
first = last = NULL;
while (!feof(inp))
{
char *token[128]; // 255 chars can only be split into 127 tokens
char value[255]; // large enough to join previously split tokens
char *safeptr;
int toknum;
int len = 0;
char *ptr = fgets(line+offs, 255-offs, inp);
if (ptr == NULL)
break;
len = strlen(line);
// skip over-long lines
if (!feof(inp) && len > 0 && line[len-1] != '\n') {
if (!skip_long_line) {
if (!quiet)
g_message ("Error: Skipping over-long-line '%s...'\n", line);
}
skip_long_line = 1;
continue;
}
// trailing '\n' found: remove it & reset offset to 0
if (len > 0 && line[len-1] == '\n') {
line[--len] = '\0';
offs = 0;
}
// if we're in long_line_skip mode, terminate it for real next line
if (skip_long_line) {
if (len == 0 || line[len-1] != '\\')
skip_long_line = 0;
continue;
}
// unwrap wrapped lines
if (len > 0 && line[len-1] == '\\') {
offs = len - 1;
continue;
}
//printf(">>%s<<\n", line);
#define SPACES " \t"
// tokenize input;
for (toknum = 0, token[toknum] = strtok_r(line, SPACES, &safeptr);
token[toknum] != NULL;
toknum++, token[toknum] = strtok_r(NULL, SPACES, &safeptr))
;
// ignore comments and empty lines
if (toknum == 0 || *token[0]=='#')
continue;
if (toknum < 2) {
if (!quiet) {
g_message ("Error: Can't parse interface line '%s'\n",
join_values_with_spaces(value, token));
}
skip_to_block = 1;
continue;
}
// There are four different stanzas:
// iface, mapping, auto and allow-*. Create a block for each of them.
// iface stanza takes at least 3 parameters
if (strcmp(token[0], "iface") == 0) {
if (toknum < 4) {
if (!quiet) {
g_message ("Error: Can't parse iface line '%s'\n",
join_values_with_spaces(value, token));
}
continue;
}
add_block(token[0], token[1]);
skip_to_block = 0;
add_data(token[2], join_values_with_spaces(value, token + 3));
}
// auto and allow-auto stanzas are equivalent,
// both can take multiple interfaces as parameters: add one block for each
else if (strcmp(token[0], "auto") == 0 ||
strcmp(token[0], "allow-auto") == 0) {
int i;
for (i = 1; i < toknum; i++)
add_block("auto", token[i]);
skip_to_block = 0;
}
else if (strcmp(token[0], "mapping") == 0) {
add_block(token[0], join_values_with_spaces(value, token + 1));
skip_to_block = 0;
}
// allow-* can take multiple interfaces as parameters: add one block for each
else if (strncmp(token[0],"allow-",6) == 0) {
int i;
for (i = 1; i < toknum; i++)
add_block(token[0], token[i]);
skip_to_block = 0;
}
else {
if (skip_to_block) {
if (!quiet) {
g_message ("Error: ignoring out-of-block data '%s'\n",
join_values_with_spaces(value, token));
}
} else
add_data(token[0], join_values_with_spaces(value, token + 1));
}
}
fclose(inp);
}
static void
_recursive_ifparser (const char *eni_file, int quiet)
{
FILE *inp;
char line[255];
int skip_to_block = 1;
int skip_long_line = 0;
int offs = 0;
// Check if interfaces file exists and open it
if (!g_file_test (eni_file, G_FILE_TEST_EXISTS)) {
if (!quiet)
nm_log_warn (LOGD_SETTINGS, "interfaces file %s doesn't exist\n", eni_file);
return;
}
inp = fopen (eni_file, "r");
if (inp == NULL) {
if (!quiet)
nm_log_warn (LOGD_SETTINGS, "Can't open %s\n", eni_file);
return;
}
if (!quiet)
nm_log_info (LOGD_SETTINGS, " interface-parser: parsing file %s\n", eni_file);
while (!feof(inp))
{
char *token[128]; // 255 chars can only be split into 127 tokens
char value[255]; // large enough to join previously split tokens
char *safeptr;
int toknum;
int len = 0;
char *ptr = fgets(line+offs, 255-offs, inp);
if (ptr == NULL)
break;
len = strlen(line);
// skip over-long lines
if (!feof(inp) && len > 0 && line[len-1] != '\n') {
if (!skip_long_line) {
if (!quiet)
nm_log_warn (LOGD_SETTINGS, "Skipping over-long-line '%s...'\n", line);
}
skip_long_line = 1;
continue;
}
// trailing '\n' found: remove it & reset offset to 0
if (len > 0 && line[len-1] == '\n') {
line[--len] = '\0';
offs = 0;
}
// if we're in long_line_skip mode, terminate it for real next line
if (skip_long_line) {
if (len == 0 || line[len-1] != '\\')
skip_long_line = 0;
continue;
}
// unwrap wrapped lines
if (len > 0 && line[len-1] == '\\') {
offs = len - 1;
continue;
}
//printf(">>%s<<\n", line);
#define SPACES " \t"
// tokenize input;
for (toknum = 0, token[toknum] = strtok_r(line, SPACES, &safeptr);
token[toknum] != NULL;
toknum++, token[toknum] = strtok_r(NULL, SPACES, &safeptr))
;
// ignore comments and empty lines
if (toknum == 0 || *token[0]=='#')
continue;
if (toknum < 2) {
if (!quiet) {
nm_log_warn (LOGD_SETTINGS, "Can't parse interface line '%s'\n",
join_values_with_spaces(value, token));
}
skip_to_block = 1;
continue;
}
// There are five different stanzas:
// iface, mapping, auto, allow-* and source.
// Create a block for each of them except source.
// iface stanza takes at least 3 parameters
if (strcmp(token[0], "iface") == 0) {
if (toknum < 4) {
if (!quiet) {
nm_log_warn (LOGD_SETTINGS, "Can't parse iface line '%s'\n",
join_values_with_spaces(value, token));
}
continue;
}
add_block(token[0], token[1]);
skip_to_block = 0;
add_data(token[2], join_values_with_spaces(value, token + 3));
}
// auto and allow-auto stanzas are equivalent,
// both can take multiple interfaces as parameters: add one block for each
else if (strcmp(token[0], "auto") == 0 ||
strcmp(token[0], "allow-auto") == 0) {
int i;
for (i = 1; i < toknum; i++)
add_block("auto", token[i]);
skip_to_block = 0;
}
else if (strcmp(token[0], "mapping") == 0) {
add_block(token[0], join_values_with_spaces(value, token + 1));
skip_to_block = 0;
}
// allow-* can take multiple interfaces as parameters: add one block for each
else if (strncmp(token[0],"allow-",6) == 0) {
int i;
for (i = 1; i < toknum; i++)
add_block(token[0], token[i]);
skip_to_block = 0;
}
// source stanza takes one or more filepaths as parameters
else if (strcmp(token[0], "source") == 0) {
int i;
char *en_dir;
skip_to_block = 0;
if (toknum == 1) {
if (!quiet)
nm_log_warn (LOGD_SETTINGS, "Invalid source line without parameters\n");
continue;
}
en_dir = g_path_get_dirname (eni_file);
for (i = 1; i < toknum; ++i)
_ifparser_source (token[i], en_dir, quiet);
g_free (en_dir);
}
else {
if (skip_to_block) {
if (!quiet) {
nm_log_warn (LOGD_SETTINGS, "ignoring out-of-block data '%s'\n",
join_values_with_spaces(value, token));
}
} else
add_data(token[0], join_values_with_spaces(value, token + 1));
}
}
fclose(inp);
if (!quiet)
nm_log_info (LOGD_SETTINGS, " interface-parser: finished parsing file %s\n", eni_file);
}
