--- /dev/null
+/*
+ Library for inifile like data files.
+
+ Copyright (C) 2006 Olaf Klein, o.b.klein@t-online.de
+
+ 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., 59 Temple Place - Suite 330, Boston, MA 02111 USA
+*/
+
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "defs.h"
+#include "inifile.h"
+
+#define MYNAME "inifile"
+
+typedef struct inifile_entry_s
+{
+ queue Q;
+ char *key;
+ char *val;
+} inifile_entry_t;
+
+typedef struct inifile_section_s
+{
+ queue Q;
+ char *name;
+ int ientries;
+ queue entries;
+} inifile_section_t;
+
+/* internal procedures */
+
+#define START_BUFSIZE 257
+#define DELTA_BUFSIZE 128
+
+static void
+inifile_load_file(FILE *fin, inifile_t *inifile, const char *myname)
+{
+ char *buf;
+ size_t bufsize = START_BUFSIZE;
+ inifile_section_t *sec = NULL;
+
+ buf = xmalloc(bufsize);
+
+ while ((fgets(buf, bufsize, fin)))
+ {
+ char *cin;
+
+ while (strchr(buf, '\n') == NULL)
+ {
+ buf = xrealloc(buf, bufsize + DELTA_BUFSIZE);
+ cin = fgets(buf + bufsize - 1, DELTA_BUFSIZE + 1, fin);
+ bufsize+=DELTA_BUFSIZE;
+ if (cin == NULL) break;
+ }
+
+ cin = lrtrim(buf);
+ if (*cin == '\0') continue;
+
+ if (*cin == '[')
+ {
+
+ char *cend = strchr(++cin, ']');
+
+ if (cend != NULL)
+ {
+ *cend = '\0';
+ cin = lrtrim(cin);
+ }
+ if ((*cin == '\0') || (cend == NULL))
+ fatal("%s: invalid section header!\n", myname);
+
+ sec = xcalloc(1, sizeof(*sec));
+
+ sec->name = xstrdup(cin);
+ QUEUE_INIT(&sec->entries);
+ ENQUEUE_TAIL(&inifile->secs, &sec->Q);
+ inifile->isecs++;
+ }
+ else
+ {
+ char *cx;
+ inifile_entry_t *entry;
+
+ if (sec == NULL)
+ fatal("%s: missing section header!\n", myname);
+
+ entry = xcalloc(1, sizeof(*entry));
+ ENQUEUE_TAIL(&sec->entries, &entry->Q);
+ sec->ientries++;
+
+ cx = strchr(cin, '=');
+ if (cx != NULL)
+ {
+ *cx = '\0';
+ cin = lrtrim(cin);
+ }
+
+ entry->key = xstrdup(cin);
+
+ if (cx != NULL)
+ {
+ cx = lrtrim(++cx);
+ entry->val = xstrdup(cx);
+ }
+ else
+ entry->val = xstrdup("");
+ }
+ }
+ xfree(buf);
+}
+
+static char *
+inifile_find_value(const inifile_t *inifile, const char *sec_name, const char *key)
+{
+ queue *elem, *tmp;
+
+ QUEUE_FOR_EACH(&inifile->secs, elem, tmp)
+ {
+ inifile_section_t *sec = (inifile_section_t *) elem;
+
+ if (case_ignore_strcmp(sec->name, sec_name) == 0)
+ {
+ queue *elem, *tmp;
+
+ QUEUE_FOR_EACH(&sec->entries, elem, tmp)
+ {
+ inifile_entry_t *entry = (inifile_entry_t *) elem;
+
+ if (case_ignore_strcmp(entry->key, key) == 0)
+ {
+ return entry->val;
+ }
+ }
+ }
+ }
+ return NULL;
+}
+
+/* public procedures */
+
+/*
+ inifile_init:
+ reads inifile filename into memory
+ myname represents the calling module
+ */
+inifile_t *
+inifile_init(const char *filename, const char *myname)
+{
+ inifile_t *result;
+ FILE *fin;
+
+ fin = xfopen(filename, "r", myname);
+
+ result = xcalloc(1, sizeof(*result));
+ QUEUE_INIT(&result->secs);
+ inifile_load_file(fin, result, myname);
+
+ fclose(fin);
+ return result;
+}
+
+void
+inifile_done(inifile_t *inifile)
+{
+ if (inifile == NULL) return;
+
+ if (inifile->isecs > 0)
+ {
+ queue *elem, *tmp;
+
+ QUEUE_FOR_EACH(&inifile->secs, elem, tmp) {
+ inifile_section_t *sec = (inifile_section_t *) elem;
+
+ if (sec->ientries > 0) {
+ queue *elem, *tmp;
+
+ QUEUE_FOR_EACH(&sec->entries, elem, tmp) {
+ inifile_entry_t *entry = (inifile_entry_t *) elem;
+
+ if (entry->key) xfree(entry->key);
+ if (entry->val) xfree(entry->val);
+ dequeue(elem);
+ xfree(entry);
+ }
+ }
+ dequeue(elem);
+ if (sec->name) xfree(sec->name);
+ xfree(sec);
+ }
+ xfree(inifile);
+ }
+}
+
+int
+inifile_has_section(const inifile_t *inifile, const char *section)
+{
+ queue *elem, *tmp;
+
+ QUEUE_FOR_EACH(&inifile->secs, elem, tmp)
+ {
+ inifile_section_t *sec = (inifile_section_t *) elem;
+ if (case_ignore_strcmp(sec->name, section) == 0)
+ return 1;
+ }
+ return 0;
+}
+
+/*
+ inifile_readstr:
+ returns NULL if not found, otherwise a pointer to the value of key ...
+ all key values are valid entities until "inifile_done"
+ */
+
+char *
+inifile_readstr(const inifile_t *inifile, const char *section, const char *key)
+{
+ return inifile_find_value(inifile, section, key);
+}
+
+/*
+ inifile_readint:
+ on success the value is stored into "*value" and "inifile_readint" returns 1,
+ otherwise inifile_readint returns 0
+ */
+
+int
+inifile_readint(const inifile_t *inifile, const char *section, const char *key, int *value)
+{
+ char *str;
+
+ str = inifile_find_value(inifile, section, key);
+
+ if (str == NULL) {
+ return 0;
+ }
+
+ if (value != NULL) {
+ *value = atoi(str);
+ }
+ return 1;
+}
+
+/*
+ inifile_readint_def:
+ if found inifile_readint_def returns value of key, otherwise a default value "def"
+ */
+
+int
+inifile_readint_def(const inifile_t *inifile, const char *section, const char *key, const int def)
+{
+ int result;
+
+ if (inifile_readint(inifile, section, key, &result) == 0) {
+ return def;
+ }
+ else {
+ return result;
+ }
+}
--- /dev/null
+/*
+ Library for inifile like data files.
+
+ Copyright (C) 2006 Olaf Klein, o.b.klein@t-online.de
+
+ 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., 59 Temple Place - Suite 330, Boston, MA 02111 USA
+*/
+
+#ifndef HAVE_INIFILE_H
+#define HAVE_INIFILE_H
+
+#include "defs.h"
+
+typedef struct inifile_s
+{
+ int isecs; /* number of sections */
+ queue secs; /* sections */
+} inifile_t;
+
+/*
+ inifile_init:
+ reads inifile filename into memory
+ myname represents the calling module
+ */
+inifile_t * inifile_init(const char *filename, const char *myname);
+void inifile_done(inifile_t *inifile);
+
+int inifile_has_section(const inifile_t *inifile, const char *section);
+
+/*
+ inifile_readstr:
+ returns NULL if not found, otherwise a pointer to the value of key ...
+ all key values are valid entities until "inifile_done"
+ */
+char *inifile_readstr(const inifile_t *inifile, const char *section, const char *key);
+
+/*
+ inifile_readint:
+ on success the value is stored into "*value" and "inifile_readint" returns 1,
+ otherwise inifile_readint returns 0
+ */
+int inifile_readint(const inifile_t *inifile, const char *section, const char *key, int *value);
+
+/*
+ inifile_readint_def:
+ if found inifile_readint_def returns value of key, otherwise a default value "def"
+ */
+int inifile_readint_def(const inifile_t *inifile, const char *section, const char *key, const int def);
+
+#endif
projects / gpsbabel.git / commitdiff