diff options
Diffstat (limited to 'conffile/conffile.c')
| -rw-r--r-- | conffile/conffile.c | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/conffile/conffile.c b/conffile/conffile.c new file mode 100644 index 0000000..d4efc78 --- /dev/null +++ b/conffile/conffile.c @@ -0,0 +1,200 @@ +/* config file parser functions + * + * (C) 2000 by Harald Welte <laforge@gnumonks.org> + * + * $Id: conffile.c,v 1.7 2000/11/16 17:20:52 laforge Exp $ + * + * This code is distributed under the terms of GNU GPL */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include "conffile.h" + +#ifdef DEBUG_CONF +#define DEBUGC(format, args...) fprintf(stderr, format, ## args) +#else +#define DEBUGC(format, args...) +#endif + +/* linked list of all registered configuration directives */ +static config_entry_t *config = NULL; + +/* points to config entry with error */ +config_entry_t *config_errce = NULL; + +/* Filename of the config file */ +static char *fname = NULL; + +/* the the next word in string */ +static char *get_word(const char *string) +{ + int len; + char *word, *space; + space = strrchr(string, ' '); + + if (!space) { + space = strrchr(string, '\t'); + if (!space) + return NULL; + } + len = space - string; + if (!len) + return NULL; + + word = (char *) malloc(len+1); + if (!word) + return NULL; + + strncpy(word, string, len); + +// if (*(word + len) == '\n') + *(word + len) = '\0'; + + return word; +} + +/* do we have a config directive for this name */ +static int config_iskey(char *name) +{ + config_entry_t *ce; + + for (ce = config; ce; ce = ce->next) { + if (!strcmp(name, ce->key)) + return 0; + } + + return 1; +} + +/*********************************************************************** + * PUBLIC INTERFACE + ***********************************************************************/ + +/* register linked list of config directives with us */ +int config_register_key(config_entry_t *ce) +{ + config_entry_t *myentry; + + if (!ce) + return 1; + + /* prepend our list to the global config list */ + for (myentry = ce; myentry->next; myentry = myentry->next) { + } + myentry->next = config; + config = ce; + + return 0; +} + +/* register config file with us */ +int config_register_file(const char *file) +{ + /* FIXME: stat of file */ + if (fname) + return 1; + + fname = (char *) malloc(strlen(file)+1); + if (!fname) + return -ERROOM; + + strcpy(fname, file); + + return 0; +} + +/* parse config file */ +int config_parse_file(int final) +{ + FILE *cfile; + char *line, *word, *args; + config_entry_t *ce; + int err = 0; + + line = (char *) malloc(LINE_LEN+1); + if (!line) + return -ERROOM; + + cfile = fopen(fname, "r"); + if (!cfile) { + free(line); + return -ERROPEN; + } + + while (fgets(line, LINE_LEN, cfile)) + { + DEBUGC("line read: %s\n", line); + if (*line == '#') + continue; + + word = get_word(line); + if (!word) + continue; + +#if 0 + /* if we do the final parse and word is not a config key */ + if (final && config_iskey(word)) { + DEBUGC("final and key '%s' not found\n", word); + err = -ERRUNKN; + goto cpf_error; + } +#endif + + args = line + strlen(word) + 1; + *(args + strlen(args) - 1 ) = '\0'; + + DEBUGC("parse_file: entering main loop\n"); + for (ce = config; ce; ce = ce->next) { + DEBUGC("parse main loop, key: %s\n", ce->key); + if (strcmp(ce->key, word)) { + continue; + } + + if (ce->hit && !(ce->options & CONFIG_OPT_MULTI)) + { + DEBUGC("->ce-hit and option not multi!\n"); + config_errce = ce; + err = -ERRMULT; + goto cpf_error; + } + if (final) + ce->hit++; + switch (ce->type) { + case CONFIG_TYPE_STRING: + if (strlen(args) < + CONFIG_VAL_STRING_LEN ) { + strcpy(ce->u.string, args); + } + break; + case CONFIG_TYPE_INT: + ce->u.value = atoi(args); + break; + case CONFIG_TYPE_CALLBACK: + (ce->u.parser)(args); + break; + } + break; + } + DEBUGC("parse_file: exiting main loop\n"); + } + + + for (ce = config; ce; ce = ce->next) { + DEBUGC("ce post loop, ce=%s\n", ce->key); + if ((ce->options & CONFIG_OPT_MANDATORY) && (ce->hit == 0) && final) { + DEBUGC("mandatory config directive %s not found\n", + ce->key); + config_errce = ce; + err = -ERRMAND; + goto cpf_error; + } + + } + +cpf_error: + free(line); + fclose(cfile); + return err; +} + |