--- /dev/null
+/* Copyright (c) 2000-2007 by Nicolas Devillard.
+ * Copyright (x) 2009 by Tim Post <tinkertim@gmail.com>
+ * MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/** @addtogroup ciniparser
+ * @{
+ */
+/**
+ * @file ciniparser.c
+ * @author N. Devillard
+ * @date Sep 2007
+ * @version 3.0
+ * @brief Parser for ini files.
+ */
+
+#include <ctype.h>
+#include "ciniparser.h"
+
+#define ASCIILINESZ (1024)
+#define INI_INVALID_KEY ((char*) NULL)
+
+/**
+ * This enum stores the status for each parsed line (internal use only).
+ */
+typedef enum _line_status_ {
+ LINE_UNPROCESSED,
+ LINE_ERROR,
+ LINE_EMPTY,
+ LINE_COMMENT,
+ LINE_SECTION,
+ LINE_VALUE
+} line_status;
+
+
+/**
+ * @brief Convert a string to lowercase.
+ * @param s String to convert.
+ * @return ptr to statically allocated string.
+ *
+ * This function returns a pointer to a statically allocated string
+ * containing a lowercased version of the input string. Do not free
+ * or modify the returned string! Since the returned string is statically
+ * allocated, it will be modified at each function call (not re-entrant).
+ */
+static char *strlwc(const char *s)
+{
+ static char l[ASCIILINESZ+1];
+ int i;
+
+ if (s == NULL)
+ return NULL;
+
+ memset(l, 0, ASCIILINESZ+1);
+ i=0;
+
+ while (s[i] && i < ASCIILINESZ) {
+ l[i] = (char)tolower((int)s[i]);
+ i++;
+ }
+
+ l[ASCIILINESZ] = (char) 0;
+
+ return l;
+}
+
+/**
+ * @brief Remove blanks at the beginning and the end of a string.
+ * @param s String to parse.
+ * @return ptr to statically allocated string.
+ *
+ * This function returns a pointer to a statically allocated string,
+ * which is identical to the input string, except that all blank
+ * characters at the end and the beg. of the string have been removed.
+ * Do not free or modify the returned string! Since the returned string
+ * is statically allocated, it will be modified at each function call
+ * (not re-entrant).
+ */
+static char *strstrip(char *s)
+{
+ static char l[ASCIILINESZ+1];
+ char *last;
+
+ if (s == NULL)
+ return NULL;
+
+ while (isspace((int)*s) && *s)
+ s++;
+
+ memset(l, 0, ASCIILINESZ+1);
+ strcpy(l, s);
+ last = l + strlen(l);
+
+ while (last > l) {
+ if (!isspace((int)*(last-1)))
+ break;
+ last --;
+ }
+
+ *last = (char) 0;
+
+ return (char *) l;
+}
+
+/**
+ * @brief Load a single line from an INI file
+ * @param input_line Input line, may be concatenated multi-line input
+ * @param section Output space to store section
+ * @param key Output space to store key
+ * @param value Output space to store value
+ * @return line_status value
+ */
+static
+line_status ciniparser_line(char *input_line, char *section,
+ char *key, char *value)
+{
+ line_status sta;
+ char line[ASCIILINESZ+1];
+ int len;
+
+ strcpy(line, strstrip(input_line));
+ len = (int) strlen(line);
+
+ sta = LINE_UNPROCESSED;
+ if (len < 1) {
+ /* Empty line */
+ sta = LINE_EMPTY;
+ } else if (line[0] == '#') {
+ /* Comment line */
+ sta = LINE_COMMENT;
+ } else if (line[0] == '[' && line[len-1] == ']') {
+ /* Section name */
+ sscanf(line, "[%[^]]", section);
+ strcpy(section, strstrip(section));
+ strcpy(section, strlwc(section));
+ sta = LINE_SECTION;
+ } else if (sscanf (line, "%[^=] = \"%[^\"]\"", key, value) == 2
+ || sscanf (line, "%[^=] = '%[^\']'", key, value) == 2
+ || sscanf (line, "%[^=] = %[^;#]", key, value) == 2) {
+ /* Usual key=value, with or without comments */
+ strcpy(key, strstrip(key));
+ strcpy(key, strlwc(key));
+ strcpy(value, strstrip(value));
+ /*
+ * sscanf cannot handle '' or "" as empty values
+ * this is done here
+ */
+ if (!strcmp(value, "\"\"") || (!strcmp(value, "''"))) {
+ value[0] = 0;
+ }
+ sta = LINE_VALUE;
+ } else if (sscanf(line, "%[^=] = %[;#]", key, value) == 2
+ || sscanf(line, "%[^=] %[=]", key, value) == 2) {
+ /*
+ * Special cases:
+ * key=
+ * key=;
+ * key=#
+ */
+ strcpy(key, strstrip(key));
+ strcpy(key, strlwc(key));
+ value[0] = 0;
+ sta = LINE_VALUE;
+ } else {
+ /* Generate syntax error */
+ sta = LINE_ERROR;
+ }
+ return sta;
+}
+
+/* The remaining public functions are documented in ciniparser.h */
+
+int ciniparser_getnsec(dictionary *d)
+{
+ int i;
+ int nsec;
+
+ if (d == NULL)
+ return -1;
+
+ nsec = 0;
+ for (i = 0; i < d->size; i++) {
+ if (d->key[i] == NULL)
+ continue;
+ if (strchr(d->key[i], ':') == NULL) {
+ nsec ++;
+ }
+ }
+
+ return nsec;
+}
+
+char *ciniparser_getsecname(dictionary *d, int n)
+{
+ int i;
+ int foundsec;
+
+ if (d == NULL || n < 0)
+ return NULL;
+
+ if (n == 0)
+ n ++;
+
+ foundsec = 0;
+
+ for (i = 0; i < d->size; i++) {
+ if (d->key[i] == NULL)
+ continue;
+ if (! strchr(d->key[i], ':')) {
+ foundsec++;
+ if (foundsec >= n)
+ break;
+ }
+ }
+
+ if (foundsec == n) {
+ return d->key[i];
+ }
+
+ return (char *) NULL;
+}
+
+void ciniparser_dump(dictionary *d, FILE *f)
+{
+ int i;
+
+ if (d == NULL || f == NULL)
+ return;
+
+ for (i = 0; i < d->size; i++) {
+ if (d->key[i] == NULL)
+ continue;
+ if (d->val[i] != NULL) {
+ fprintf(f, "[%s]=[%s]\n", d->key[i], d->val[i]);
+ } else {
+ fprintf(f, "[%s]=UNDEF\n", d->key[i]);
+ }
+ }
+
+ return;
+}
+
+void ciniparser_dump_ini(dictionary *d, FILE *f)
+{
+ int i, j;
+ char keym[ASCIILINESZ+1];
+ int nsec;
+ char *secname;
+ int seclen;
+
+ if (d == NULL || f == NULL)
+ return;
+
+ memset(keym, 0, ASCIILINESZ + 1);
+
+ nsec = ciniparser_getnsec(d);
+ if (nsec < 1) {
+ /* No section in file: dump all keys as they are */
+ for (i = 0; i < d->size; i++) {
+ if (d->key[i] == NULL)
+ continue;
+ fprintf(f, "%s = %s\n", d->key[i], d->val[i]);
+ }
+ return;
+ }
+
+ for (i = 0; i < nsec; i++) {
+ secname = ciniparser_getsecname(d, i);
+ seclen = (int)strlen(secname);
+ fprintf(f, "\n[%s]\n", secname);
+ snprintf(keym, ASCIILINESZ + 1, "%s:", secname);
+ for (j = 0; j < d->size; j++) {
+ if (d->key[j] == NULL)
+ continue;
+ if (!strncmp(d->key[j], keym, seclen+1)) {
+ fprintf(f, "%-30s = %s\n",
+ d->key[j]+seclen+1,
+ d->val[j] ? d->val[j] : "");
+ }
+ }
+ }
+ fprintf(f, "\n");
+
+ return;
+}
+
+char *ciniparser_getstring(dictionary *d, const char *key, char *def)
+{
+ char *lc_key;
+ char *sval;
+
+ if (d == NULL || key == NULL)
+ return def;
+
+ lc_key = strlwc(key);
+ sval = dictionary_get(d, lc_key, def);
+
+ return sval;
+}
+
+int ciniparser_getint(dictionary *d, const char *key, int notfound)
+{
+ char *str;
+
+ str = ciniparser_getstring(d, key, INI_INVALID_KEY);
+
+ if (str == INI_INVALID_KEY)
+ return notfound;
+
+ return (int) strtol(str, NULL, 10);
+}
+
+double ciniparser_getdouble(dictionary *d, char *key, double notfound)
+{
+ char *str;
+
+ str = ciniparser_getstring(d, key, INI_INVALID_KEY);
+
+ if (str == INI_INVALID_KEY)
+ return notfound;
+
+ return atof(str);
+}
+
+int ciniparser_getboolean(dictionary *d, const char *key, int notfound)
+{
+ char *c;
+ int ret;
+
+ c = ciniparser_getstring(d, key, INI_INVALID_KEY);
+ if (c == INI_INVALID_KEY)
+ return notfound;
+
+ switch(c[0]) {
+ case 'y': case 'Y': case '1': case 't': case 'T':
+ ret = 1;
+ break;
+ case 'n': case 'N': case '0': case 'f': case 'F':
+ ret = 0;
+ break;
+ default:
+ ret = notfound;
+ break;
+ }
+
+ return ret;
+}
+
+int ciniparser_find_entry(dictionary *ini, char *entry)
+{
+ int found = 0;
+
+ if (ciniparser_getstring(ini, entry, INI_INVALID_KEY) != INI_INVALID_KEY) {
+ found = 1;
+ }
+
+ return found;
+}
+
+int ciniparser_set(dictionary *d, char *entry, char *val)
+{
+ return dictionary_set(d, strlwc(entry), val);
+}
+
+void ciniparser_unset(dictionary *ini, char *entry)
+{
+ dictionary_unset(ini, strlwc(entry));
+}
+
+dictionary *ciniparser_load(const char *ininame)
+{
+ FILE *in;
+ char line[ASCIILINESZ+1];
+ char section[ASCIILINESZ+1];
+ char key[ASCIILINESZ+1];
+ char tmp[ASCIILINESZ+1];
+ char val[ASCIILINESZ+1];
+ int last = 0, len, lineno = 0, errs = 0;
+ dictionary *dict;
+
+ if ((in = fopen(ininame, "r")) == NULL) {
+ fprintf(stderr, "ciniparser: cannot open %s\n", ininame);
+ return NULL;
+ }
+
+ dict = dictionary_new(0);
+ if (!dict) {
+ fclose(in);
+ return NULL;
+ }
+
+ memset(line, 0, ASCIILINESZ + 1);
+ memset(section, 0, ASCIILINESZ + 1);
+ memset(key, 0, ASCIILINESZ + 1);
+ memset(val, 0, ASCIILINESZ + 1);
+ last = 0;
+
+ while (fgets(line+last, ASCIILINESZ-last, in)!=NULL) {
+ lineno++;
+ len = (int) strlen(line)-1;
+ /* Safety check against buffer overflows */
+ if (line[len] != '\n') {
+ fprintf(stderr,
+ "ciniparser: input line too long in %s (%d)\n",
+ ininame,
+ lineno);
+ dictionary_del(dict);
+ fclose(in);
+ return NULL;
+ }
+
+ /* Get rid of \n and spaces at end of line */
+ while ((len >= 0) &&
+ ((line[len] == '\n') || (isspace(line[len])))) {
+ line[len] = 0;
+ len--;
+ }
+
+ /* Detect multi-line */
+ if (line[len] == '\\') {
+ /* Multi-line value */
+ last = len;
+ continue;
+ } else {
+ last = 0;
+ }
+
+ switch (ciniparser_line(line, section, key, val)) {
+ case LINE_EMPTY:
+ case LINE_COMMENT:
+ break;
+
+ case LINE_SECTION:
+ errs = dictionary_set(dict, section, NULL);
+ break;
+
+ case LINE_VALUE:
+ snprintf(tmp, ASCIILINESZ + 1, "%s:%s", section, key);
+ errs = dictionary_set(dict, tmp, val);
+ break;
+
+ case LINE_ERROR:
+ fprintf(stderr, "ciniparser: syntax error in %s (%d):\n",
+ ininame, lineno);
+ fprintf(stderr, "-> %s\n", line);
+ errs++;
+ break;
+
+ default:
+ break;
+ }
+ memset(line, 0, ASCIILINESZ);
+ last = 0;
+ if (errs < 0) {
+ fprintf(stderr, "ciniparser: memory allocation failure\n");
+ break;
+ }
+ }
+
+ if (errs) {
+ dictionary_del(dict);
+ dict = NULL;
+ }
+
+ fclose(in);
+
+ return dict;
+}
+
+void ciniparser_freedict(dictionary *d)
+{
+ dictionary_del(d);
+}
+
+/** @}
+ */
projects / ccan / blobdiff