diff options
Diffstat (limited to 'system-settings/plugins/ifupdown/interface_parser.c')
| -rw-r--r-- | system-settings/plugins/ifupdown/interface_parser.c | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/system-settings/plugins/ifupdown/interface_parser.c b/system-settings/plugins/ifupdown/interface_parser.c new file mode 100644 index 00000000..f28cf7ca --- /dev/null +++ b/system-settings/plugins/ifupdown/interface_parser.c @@ -0,0 +1,215 @@ +/* -*- Mode: C; tab-width: 5; indent-tabs-mode: t; c-basic-offset: 5 -*- */ +/* NetworkManager -- Network link manager + * + * Tom Parker <palfrey@tevp.net> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * (C) Copyright 2004 Tom Parker + */ + + +#include "interface_parser.h" +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "nm-utils.h" + +if_block* first; +if_block* last; + +if_data* last_data; + +void add_block(const char *type, const char* name) +{ + if_block *ret = (if_block*)calloc(1,sizeof(struct _if_block)); + ret->name = g_strdup(name); + ret->type = g_strdup(type); + if (first == NULL) + first = last = ret; + else + { + last->next = ret; + last = ret; + } + last_data = NULL; + //printf("added block '%s' with type '%s'\n",name,type); +} + +void add_data(const char *key,const char *data) +{ + if_data *ret; + + // Check if there is a block where we can attach our data + if (first == NULL) + return; + + ret = (if_data*) calloc(1,sizeof(struct _if_data)); + ret->key = g_strdup(key); + ret->data = g_strdup(data); + + if (last->info == NULL) + { + last->info = ret; + last_data = ret; + } + else + { + last_data->next = ret; + last_data = last_data->next; + } + //printf("added data '%s' with key '%s'\n",data,key); +} + +#define SPACE_OR_TAB(string,ret) {ret = strchr(string,' ');ret=(ret == NULL?strchr(string,'\t'):ret);} + +void ifparser_init(void) +{ + FILE *inp = fopen(ENI_INTERFACES_FILE, "r"); + int ret = 0; + char *line; + char *space; + char rline[255]; + + if (inp == NULL) + { + nm_warning ("Error: Can't open %s\n", ENI_INTERFACES_FILE); + return; + } + first = last = NULL; + while(1) + { + line = space = NULL; + ret = fscanf(inp,"%255[^\n]\n",rline); + if (ret == EOF) + break; + // If the line did not match, skip it + if (ret == 0) { + char *ignored; + + ignored = fgets(rline, 255, inp); + continue; + } + + line = rline; + while(line[0] == ' ') + line++; + if (line[0]=='#' || line[0]=='\0') + continue; + + SPACE_OR_TAB(line,space) + if (space == NULL) + { + nm_warning ("Error: Can't parse interface line '%s'\n",line); + continue; + } + space[0] = '\0'; + + // There are four different stanzas: + // iface, mapping, auto and allow-*. Create a block for each of them. + if (strcmp(line,"iface")==0) + { + char *space2 = strchr(space+1,' '); + if (space2 == NULL) + { + nm_warning ("Error: Can't parse iface line '%s'\n",space+1); + continue; + } + space2[0]='\0'; + add_block(line,space+1); + + if (space2[1]!='\0') + { + space = strchr(space2+1,' '); + if (space == NULL) + { + nm_warning ("Error: Can't parse data '%s'\n",space2+1); + continue; + } + space[0] = '\0'; + add_data(space2+1,space+1); + } + } + else if (strcmp(line,"auto")==0) + add_block(line,space+1); + else if (strcmp(line,"mapping")==0) + add_block(line,space+1); + else if (strncmp(line,"allow-",6)==0) + add_block(line,space+1); + else + add_data(line,space+1); + + //printf("line: '%s' ret=%d\n",rline,ret); + } + fclose(inp); +} + +void _destroy_data(if_data *ifd) +{ + if (ifd == NULL) + return; + _destroy_data(ifd->next); + free(ifd->key); + free(ifd->data); + free(ifd); + return; +} + +void _destroy_block(if_block* ifb) +{ + if (ifb == NULL) + return; + _destroy_block(ifb->next); + _destroy_data(ifb->info); + free(ifb->name); + free(ifb->type); + free(ifb); + return; +} + +void ifparser_destroy(void) +{ + _destroy_block(first); + first = last = NULL; +} + +if_block *ifparser_getfirst(void) +{ + return first; +} + +if_block *ifparser_getif(const char* iface) +{ + if_block *curr = first; + while(curr!=NULL) + { + if (strcmp(curr->type,"iface")==0 && strcmp(curr->name,iface)==0) + return curr; + curr = curr->next; + } + return NULL; +} + +const char *ifparser_getkey(if_block* iface, const char *key) +{ + if_data *curr = iface->info; + while(curr!=NULL) + { + if (strcmp(curr->key,key)==0) + return curr->data; + curr = curr->next; + } + return NULL; +} |