PulseAudio 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 of the License,
+ by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
#define COMMENTS "#;\n"
/* Run the user supplied parser for an assignment */
-static int next_assignment(const char *filename, unsigned line, const pa_config_item *t, const char *lvalue, const char *rvalue, void *userdata) {
- pa_assert(filename);
- pa_assert(t);
- pa_assert(lvalue);
- pa_assert(rvalue);
+static int normal_assignment(pa_config_parser_state *state) {
+ const pa_config_item *item;
+
+ pa_assert(state);
+
+ for (item = state->item_table; item->parse; item++) {
+
+ if (item->lvalue && !pa_streq(state->lvalue, item->lvalue))
+ continue;
+
+ if (item->section && !state->section)
+ continue;
+
+ if (item->section && !pa_streq(state->section, item->section))
+ continue;
+
+ state->data = item->data;
- for (; t->parse; t++)
- if (!strcmp(lvalue, t->lvalue))
- return t->parse(filename, line, lvalue, rvalue, t->data, userdata);
+ return item->parse(state);
+ }
- pa_log("[%s:%u] Unknown lvalue '%s'.", filename, line, lvalue);
+ pa_log("[%s:%u] Unknown lvalue '%s' in section '%s'.", state->filename, state->lineno, state->lvalue, pa_strna(state->section));
return -1;
}
-/* Returns non-zero when c is contained in s */
-static int in_string(char c, const char *s) {
- pa_assert(s);
+/* Parse a proplist entry. */
+static int proplist_assignment(pa_config_parser_state *state) {
+ pa_assert(state);
+ pa_assert(state->proplist);
- for (; *s; s++)
- if (*s == c)
- return 1;
+ if (pa_proplist_sets(state->proplist, state->lvalue, state->rvalue) < 0) {
+ pa_log("[%s:%u] Failed to parse a proplist entry: %s = %s", state->filename, state->lineno, state->lvalue, state->rvalue);
+ return -1;
+ }
return 0;
}
-/* Remove all whitepsapce from the beginning and the end of *s. *s may
- * be modified. */
-static char *strip(char *s) {
- char *b = s+strspn(s, WHITESPACE);
- char *e, *l = NULL;
+/* Parse a variable assignment line */
+static int parse_line(pa_config_parser_state *state) {
+ char *c;
- for (e = b; *e; e++)
- if (!in_string(*e, WHITESPACE))
- l = e;
+ state->lvalue = state->buf + strspn(state->buf, WHITESPACE);
- if (l)
- *(l+1) = 0;
+ if ((c = strpbrk(state->lvalue, COMMENTS)))
+ *c = 0;
- return b;
-}
+ if (!*state->lvalue)
+ return 0;
-/* Parse a variable assignment line */
-static int parse_line(const char *filename, unsigned line, const pa_config_item *t, char *l, void *userdata) {
- char *e, *c, *b = l+strspn(l, WHITESPACE);
+ if (pa_startswith(state->lvalue, ".include ")) {
+ char *path = NULL, *fn;
+ int r;
+
+ fn = pa_strip(state->lvalue + 9);
+ if (!pa_is_path_absolute(fn)) {
+ const char *k;
+ if ((k = strrchr(state->filename, '/'))) {
+ char *dir = pa_xstrndup(state->filename, k - state->filename);
+ fn = path = pa_sprintf_malloc("%s" PA_PATH_SEP "%s", dir, fn);
+ pa_xfree(dir);
+ }
+ }
- if ((c = strpbrk(b, COMMENTS)))
- *c = 0;
+ r = pa_config_parse(fn, NULL, state->item_table, state->proplist, state->userdata);
+ pa_xfree(path);
+ return r;
+ }
+
+ if (*state->lvalue == '[') {
+ size_t k;
+
+ k = strlen(state->lvalue);
+ pa_assert(k > 0);
+
+ if (state->lvalue[k-1] != ']') {
+ pa_log("[%s:%u] Invalid section header.", state->filename, state->lineno);
+ return -1;
+ }
+
+ pa_xfree(state->section);
+ state->section = pa_xstrndup(state->lvalue + 1, k-2);
+
+ if (pa_streq(state->section, "Properties")) {
+ if (!state->proplist) {
+ pa_log("[%s:%u] \"Properties\" section is not allowed in this file.", state->filename, state->lineno);
+ return -1;
+ }
+
+ state->in_proplist = true;
+ } else
+ state->in_proplist = false;
- if (!*b)
return 0;
+ }
- if (!(e = strchr(b, '='))) {
- pa_log("[%s:%u] Missing '='.", filename, line);
+ if (!(state->rvalue = strchr(state->lvalue, '='))) {
+ pa_log("[%s:%u] Missing '='.", state->filename, state->lineno);
return -1;
}
- *e = 0;
- e++;
+ *state->rvalue = 0;
+ state->rvalue++;
+
+ state->lvalue = pa_strip(state->lvalue);
+ state->rvalue = pa_strip(state->rvalue);
- return next_assignment(filename, line, t, strip(b), strip(e), userdata);
+ if (state->in_proplist)
+ return proplist_assignment(state);
+ else
+ return normal_assignment(state);
}
/* Go through the file and parse each line */
-int pa_config_parse(const char *filename, FILE *f, const pa_config_item *t, void *userdata) {
+int pa_config_parse(const char *filename, FILE *f, const pa_config_item *t, pa_proplist *proplist, void *userdata) {
int r = -1;
- unsigned line = 0;
- int do_close = !f;
+ bool do_close = !f;
+ pa_config_parser_state state;
pa_assert(filename);
pa_assert(t);
- if (!f && !(f = fopen(filename, "r"))) {
+ pa_zero(state);
+
+ if (!f && !(f = pa_fopen_cloexec(filename, "r"))) {
if (errno == ENOENT) {
+ pa_log_debug("Failed to open configuration file '%s': %s", filename, pa_cstrerror(errno));
r = 0;
goto finish;
}
- pa_log_warn("Failed to open configuration file '%s': %s",
- filename, pa_cstrerror(errno));
+ pa_log_warn("Failed to open configuration file '%s': %s", filename, pa_cstrerror(errno));
goto finish;
}
+ state.filename = filename;
+ state.item_table = t;
+ state.userdata = userdata;
+
+ if (proplist)
+ state.proplist = pa_proplist_new();
+
while (!feof(f)) {
- char l[256];
- if (!fgets(l, sizeof(l), f)) {
+ if (!fgets(state.buf, sizeof(state.buf), f)) {
if (feof(f))
break;
- pa_log_warn("Failed to read configuration file '%s': %s",
- filename, pa_cstrerror(errno));
+ pa_log_warn("Failed to read configuration file '%s': %s", filename, pa_cstrerror(errno));
goto finish;
}
- if (parse_line(filename, ++line, t, l, userdata) < 0)
+ state.lineno++;
+
+ if (parse_line(&state) < 0)
goto finish;
}
+ if (proplist)
+ pa_proplist_update(proplist, PA_UPDATE_REPLACE, state.proplist);
+
r = 0;
finish:
+ if (state.proplist)
+ pa_proplist_free(state.proplist);
+
+ pa_xfree(state.section);
if (do_close && f)
fclose(f);
return r;
}
-int pa_config_parse_int(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, void *userdata) {
- int *i = data;
+int pa_config_parse_int(pa_config_parser_state *state) {
+ int *i;
int32_t k;
- pa_assert(filename);
- pa_assert(lvalue);
- pa_assert(rvalue);
- pa_assert(data);
+ pa_assert(state);
+
+ i = state->data;
- if (pa_atoi(rvalue, &k) < 0) {
- pa_log("[%s:%u] Failed to parse numeric value: %s", filename, line, rvalue);
+ if (pa_atoi(state->rvalue, &k) < 0) {
+ pa_log("[%s:%u] Failed to parse numeric value: %s", state->filename, state->lineno, state->rvalue);
return -1;
}
return 0;
}
-int pa_config_parse_size(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, void *userdata) {
- size_t *i = data;
+int pa_config_parse_unsigned(pa_config_parser_state *state) {
+ unsigned *u;
uint32_t k;
- pa_assert(filename);
- pa_assert(lvalue);
- pa_assert(rvalue);
- pa_assert(data);
+ pa_assert(state);
+
+ u = state->data;
+
+ if (pa_atou(state->rvalue, &k) < 0) {
+ pa_log("[%s:%u] Failed to parse numeric value: %s", state->filename, state->lineno, state->rvalue);
+ return -1;
+ }
+
+ *u = (unsigned) k;
+ return 0;
+}
+
+int pa_config_parse_size(pa_config_parser_state *state) {
+ size_t *i;
+ uint32_t k;
+
+ pa_assert(state);
+
+ i = state->data;
- if (pa_atou(rvalue, &k) < 0) {
- pa_log("[%s:%u] Failed to parse numeric value: %s", filename, line, rvalue);
+ if (pa_atou(state->rvalue, &k) < 0) {
+ pa_log("[%s:%u] Failed to parse numeric value: %s", state->filename, state->lineno, state->rvalue);
return -1;
}
return 0;
}
-int pa_config_parse_bool(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, void *userdata) {
+int pa_config_parse_bool(pa_config_parser_state *state) {
int k;
- pa_bool_t *b = data;
+ bool *b;
- pa_assert(filename);
- pa_assert(lvalue);
- pa_assert(rvalue);
- pa_assert(data);
+ pa_assert(state);
+
+ b = state->data;
- if ((k = pa_parse_boolean(rvalue)) < 0) {
- pa_log("[%s:%u] Failed to parse boolean value: %s", filename, line, rvalue);
+ if ((k = pa_parse_boolean(state->rvalue)) < 0) {
+ pa_log("[%s:%u] Failed to parse boolean value: %s", state->filename, state->lineno, state->rvalue);
return -1;
}
return 0;
}
-int pa_config_parse_string(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, void *userdata) {
- char **s = data;
+int pa_config_parse_not_bool(pa_config_parser_state *state) {
+ int k;
+ bool *b;
- pa_assert(filename);
- pa_assert(lvalue);
- pa_assert(rvalue);
- pa_assert(data);
+ pa_assert(state);
+
+ b = state->data;
+
+ if ((k = pa_parse_boolean(state->rvalue)) < 0) {
+ pa_log("[%s:%u] Failed to parse boolean value: %s", state->filename, state->lineno, state->rvalue);
+ return -1;
+ }
+
+ *b = !k;
+
+ return 0;
+}
+
+int pa_config_parse_string(pa_config_parser_state *state) {
+ char **s;
+
+ pa_assert(state);
+
+ s = state->data;
pa_xfree(*s);
- *s = *rvalue ? pa_xstrdup(rvalue) : NULL;
+ *s = *state->rvalue ? pa_xstrdup(state->rvalue) : NULL;
return 0;
}