diff options
Diffstat (limited to 'avahi-daemon/ini-file-parser.c')
| -rw-r--r-- | avahi-daemon/ini-file-parser.c | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/avahi-daemon/ini-file-parser.c b/avahi-daemon/ini-file-parser.c new file mode 100644 index 0000000..03a3f8b --- /dev/null +++ b/avahi-daemon/ini-file-parser.c @@ -0,0 +1,186 @@ +/* $Id$ */ + +/*** + This file is part of avahi. + + avahi is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + avahi 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 Lesser General + Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with avahi; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <stdio.h> +#include <string.h> +#include <errno.h> + +#include <avahi-common/malloc.h> +#include <avahi-core/log.h> + +#include "ini-file-parser.h" + +AvahiIniFile* avahi_ini_file_load(const char *fname) { + AvahiIniFile *f; + FILE *fo; + AvahiIniFileGroup *group = NULL; + unsigned line; + + assert(fname); + + if (!(fo = fopen(fname, "r"))) { + avahi_log_error("Failed to open file '%s': %s", fname, strerror(errno)); + return NULL; + } + + f = avahi_new(AvahiIniFile, 1); + AVAHI_LLIST_HEAD_INIT(AvahiIniFileGroup, f->groups); + f->n_groups = 0; + + line = 0; + while (!feof(fo)) { + char ln[256], *s, *e; + AvahiIniFilePair *pair; + + if (!(fgets(ln, sizeof(ln), fo))) + break; + + line++; + + s = ln + strspn(ln, " \t"); + s[strcspn(s, "\r\n")] = 0; + + /* Skip comments and empty lines */ + if (*s == '#' || *s == '%' || *s == 0) + continue; + + if (*s == '[') { + /* new group */ + + if (!(e = strchr(s, ']'))) { + avahi_log_error("Unclosed group header in %s:%u: <%s>", fname, line, s); + goto fail; + } + + *e = 0; + + group = avahi_new(AvahiIniFileGroup, 1); + group->name = avahi_strdup(s+1); + group->n_pairs = 0; + AVAHI_LLIST_HEAD_INIT(AvahiIniFilePair, group->pairs); + + AVAHI_LLIST_PREPEND(AvahiIniFileGroup, groups, f->groups, group); + f->n_groups++; + } else { + + /* Normal assignment */ + if (!(e = strchr(s, '='))) { + avahi_log_error("Missing assignment in %s:%u: <%s>", fname, line, s); + goto fail; + } + + if (!group) { + avahi_log_error("Assignment outside group in %s:%u <%s>", fname, line, s); + goto fail; + } + + /* Split the key and the value */ + *(e++) = 0; + + pair = avahi_new(AvahiIniFilePair, 1); + pair->key = avahi_strdup(s); + pair->value = avahi_strdup(e); + + AVAHI_LLIST_PREPEND(AvahiIniFilePair, pairs, group->pairs, pair); + group->n_pairs++; + } + } + + fclose(fo); + + return f; + +fail: + + if (fo) + fclose(fo); + + if (f) + avahi_ini_file_free(f); + + return NULL; +} + +void avahi_ini_file_free(AvahiIniFile *f) { + AvahiIniFileGroup *g; + assert(f); + + while ((g = f->groups)) { + AvahiIniFilePair *p; + + while ((p = g->pairs)) { + avahi_free(p->key); + avahi_free(p->value); + + AVAHI_LLIST_REMOVE(AvahiIniFilePair, pairs, g->pairs, p); + avahi_free(p); + } + + avahi_free(g->name); + + AVAHI_LLIST_REMOVE(AvahiIniFileGroup, groups, f->groups, g); + avahi_free(g); + } + + avahi_free(f); +} + +char** avahi_split_csv(const char *t) { + unsigned n_comma = 0; + const char *p; + char **r, **i; + + for (p = t; *p; p++) + if (*p == ',') + n_comma++; + + i = r = avahi_new(char*, n_comma+2); + + for (;;) { + size_t l = strcspn(t, ","); + + *(i++) = avahi_strndup(t, l); + + t += l; + + if (*t == 0) + break; + + assert(*t == ','); + t++; + } + + *i = NULL; + + return r; +} + +void avahi_strfreev(char **p) { + char **i; + + if (!p) + return; + + for (i = p; *i; i++) + avahi_free(*i); + + avahi_free(p); +} |