e6dde451a5
Let's use read_line() to solve our long line limitation. Fixes #3302.
1027 lines
30 KiB
C
1027 lines
30 KiB
C
/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <errno.h>
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#include <limits.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include "alloc-util.h"
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#include "conf-files.h"
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#include "conf-parser.h"
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#include "def.h"
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#include "extract-word.h"
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#include "fd-util.h"
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#include "fileio.h"
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#include "fs-util.h"
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#include "log.h"
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#include "macro.h"
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#include "parse-util.h"
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#include "path-util.h"
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#include "process-util.h"
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#include "signal-util.h"
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#include "socket-util.h"
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#include "string-util.h"
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#include "strv.h"
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#include "syslog-util.h"
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#include "time-util.h"
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#include "utf8.h"
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int config_item_table_lookup(
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const void *table,
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const char *section,
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const char *lvalue,
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ConfigParserCallback *func,
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int *ltype,
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void **data,
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void *userdata) {
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const ConfigTableItem *t;
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assert(table);
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assert(lvalue);
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assert(func);
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assert(ltype);
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assert(data);
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for (t = table; t->lvalue; t++) {
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if (!streq(lvalue, t->lvalue))
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continue;
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if (!streq_ptr(section, t->section))
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continue;
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*func = t->parse;
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*ltype = t->ltype;
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*data = t->data;
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return 1;
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}
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return 0;
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}
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int config_item_perf_lookup(
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const void *table,
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const char *section,
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const char *lvalue,
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ConfigParserCallback *func,
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int *ltype,
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void **data,
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void *userdata) {
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ConfigPerfItemLookup lookup = (ConfigPerfItemLookup) table;
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const ConfigPerfItem *p;
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assert(table);
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assert(lvalue);
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assert(func);
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assert(ltype);
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assert(data);
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if (!section)
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p = lookup(lvalue, strlen(lvalue));
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else {
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char *key;
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key = strjoin(section, ".", lvalue);
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if (!key)
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return -ENOMEM;
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p = lookup(key, strlen(key));
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free(key);
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}
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if (!p)
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return 0;
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*func = p->parse;
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*ltype = p->ltype;
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*data = (uint8_t*) userdata + p->offset;
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return 1;
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}
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/* Run the user supplied parser for an assignment */
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static int next_assignment(const char *unit,
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const char *filename,
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unsigned line,
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ConfigItemLookup lookup,
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const void *table,
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const char *section,
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unsigned section_line,
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const char *lvalue,
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const char *rvalue,
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bool relaxed,
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void *userdata) {
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ConfigParserCallback func = NULL;
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int ltype = 0;
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void *data = NULL;
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int r;
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assert(filename);
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assert(line > 0);
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assert(lookup);
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assert(lvalue);
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assert(rvalue);
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r = lookup(table, section, lvalue, &func, <ype, &data, userdata);
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if (r < 0)
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return r;
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if (r > 0) {
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if (func)
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return func(unit, filename, line, section, section_line,
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lvalue, ltype, rvalue, data, userdata);
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return 0;
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}
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/* Warn about unknown non-extension fields. */
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if (!relaxed && !startswith(lvalue, "X-"))
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log_syntax(unit, LOG_WARNING, filename, line, 0, "Unknown lvalue '%s' in section '%s'", lvalue, section);
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return 0;
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}
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/* Parse a variable assignment line */
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static int parse_line(const char* unit,
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const char *filename,
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unsigned line,
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const char *sections,
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ConfigItemLookup lookup,
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const void *table,
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bool relaxed,
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bool allow_include,
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char **section,
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unsigned *section_line,
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bool *section_ignored,
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char *l,
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void *userdata) {
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char *e;
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assert(filename);
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assert(line > 0);
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assert(lookup);
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assert(l);
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l = strstrip(l);
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if (!*l)
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return 0;
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if (strchr(COMMENTS "\n", *l))
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return 0;
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if (startswith(l, ".include ")) {
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_cleanup_free_ char *fn = NULL;
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/* .includes are a bad idea, we only support them here
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* for historical reasons. They create cyclic include
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* problems and make it difficult to detect
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* configuration file changes with an easy
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* stat(). Better approaches, such as .d/ drop-in
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* snippets exist.
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*
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* Support for them should be eventually removed. */
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if (!allow_include) {
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log_syntax(unit, LOG_ERR, filename, line, 0, ".include not allowed here. Ignoring.");
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return 0;
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}
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fn = file_in_same_dir(filename, strstrip(l+9));
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if (!fn)
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return -ENOMEM;
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return config_parse(unit, fn, NULL, sections, lookup, table, relaxed, false, false, userdata);
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}
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if (*l == '[') {
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size_t k;
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char *n;
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k = strlen(l);
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assert(k > 0);
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if (l[k-1] != ']') {
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log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid section header '%s'", l);
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return -EBADMSG;
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}
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n = strndup(l+1, k-2);
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if (!n)
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return -ENOMEM;
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if (sections && !nulstr_contains(sections, n)) {
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if (!relaxed && !startswith(n, "X-"))
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log_syntax(unit, LOG_WARNING, filename, line, 0, "Unknown section '%s'. Ignoring.", n);
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free(n);
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*section = mfree(*section);
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*section_line = 0;
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*section_ignored = true;
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} else {
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free(*section);
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*section = n;
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*section_line = line;
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*section_ignored = false;
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}
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return 0;
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}
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if (sections && !*section) {
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if (!relaxed && !*section_ignored)
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log_syntax(unit, LOG_WARNING, filename, line, 0, "Assignment outside of section. Ignoring.");
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return 0;
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}
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e = strchr(l, '=');
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if (!e) {
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log_syntax(unit, LOG_WARNING, filename, line, 0, "Missing '='.");
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return -EINVAL;
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}
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*e = 0;
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e++;
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return next_assignment(unit,
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filename,
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line,
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lookup,
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table,
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*section,
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*section_line,
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strstrip(l),
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strstrip(e),
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relaxed,
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userdata);
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}
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/* Go through the file and parse each line */
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int config_parse(const char *unit,
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const char *filename,
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FILE *f,
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const char *sections,
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ConfigItemLookup lookup,
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const void *table,
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bool relaxed,
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bool allow_include,
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bool warn,
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void *userdata) {
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_cleanup_free_ char *section = NULL, *continuation = NULL;
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_cleanup_fclose_ FILE *ours = NULL;
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unsigned line = 0, section_line = 0;
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bool section_ignored = false, allow_bom = true;
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int r;
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assert(filename);
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assert(lookup);
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if (!f) {
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f = ours = fopen(filename, "re");
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if (!f) {
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/* Only log on request, except for ENOENT,
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* since we return 0 to the caller. */
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if (warn || errno == ENOENT)
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log_full(errno == ENOENT ? LOG_DEBUG : LOG_ERR,
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"Failed to open configuration file '%s': %m", filename);
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return errno == ENOENT ? 0 : -errno;
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}
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}
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fd_warn_permissions(filename, fileno(f));
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for (;;) {
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_cleanup_free_ char *buf = NULL;
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char *l, *p, *c = NULL, *e;
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bool escaped = false;
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r = read_line(f, LONG_LINE_MAX, &buf);
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if (r == 0)
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break;
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if (r == -ENOBUFS) {
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if (warn)
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log_error_errno(r, "%s:%u: Line too long", filename, line);
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return r;
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}
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if (r < 0) {
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if (warn)
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log_error_errno(r, "%s:%u: Error while reading configuration file: %m", filename, line);
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return r;
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}
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l = buf;
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if (allow_bom) {
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char *q;
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q = startswith(buf, UTF8_BYTE_ORDER_MARK);
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if (q) {
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l = q;
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allow_bom = false;
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}
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}
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if (continuation) {
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if (strlen(continuation) + strlen(l) > LONG_LINE_MAX) {
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if (warn)
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log_error("%s:%u: Continuation line too long", filename, line);
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return -ENOBUFS;
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}
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c = strappend(continuation, l);
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if (!c) {
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if (warn)
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log_oom();
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return -ENOMEM;
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}
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continuation = mfree(continuation);
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p = c;
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} else
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p = l;
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for (e = p; *e; e++) {
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if (escaped)
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escaped = false;
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else if (*e == '\\')
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escaped = true;
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}
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if (escaped) {
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*(e-1) = ' ';
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if (c)
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continuation = c;
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else {
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continuation = strdup(l);
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if (!continuation) {
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if (warn)
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log_oom();
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return -ENOMEM;
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}
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}
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continue;
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}
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r = parse_line(unit,
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filename,
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++line,
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sections,
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lookup,
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table,
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relaxed,
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allow_include,
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§ion,
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§ion_line,
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§ion_ignored,
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p,
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userdata);
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free(c);
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if (r < 0) {
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if (warn)
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log_warning_errno(r, "%s:%u: Failed to parse file: %m", filename, line);
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return r;
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}
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}
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return 0;
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}
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static int config_parse_many_files(
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const char *conf_file,
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char **files,
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const char *sections,
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ConfigItemLookup lookup,
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const void *table,
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bool relaxed,
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void *userdata) {
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char **fn;
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int r;
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if (conf_file) {
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r = config_parse(NULL, conf_file, NULL, sections, lookup, table, relaxed, false, true, userdata);
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if (r < 0)
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return r;
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}
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STRV_FOREACH(fn, files) {
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r = config_parse(NULL, *fn, NULL, sections, lookup, table, relaxed, false, true, userdata);
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if (r < 0)
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return r;
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}
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return 0;
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}
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/* Parse each config file in the directories specified as nulstr. */
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int config_parse_many_nulstr(
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const char *conf_file,
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const char *conf_file_dirs,
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const char *sections,
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ConfigItemLookup lookup,
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const void *table,
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bool relaxed,
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void *userdata) {
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_cleanup_strv_free_ char **files = NULL;
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int r;
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r = conf_files_list_nulstr(&files, ".conf", NULL, 0, conf_file_dirs);
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if (r < 0)
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return r;
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return config_parse_many_files(conf_file, files,
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sections, lookup, table, relaxed, userdata);
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}
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/* Parse each config file in the directories specified as strv. */
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int config_parse_many(
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const char *conf_file,
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const char* const* conf_file_dirs,
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const char *dropin_dirname,
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const char *sections,
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ConfigItemLookup lookup,
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const void *table,
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bool relaxed,
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void *userdata) {
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_cleanup_strv_free_ char **dropin_dirs = NULL;
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_cleanup_strv_free_ char **files = NULL;
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const char *suffix;
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int r;
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suffix = strjoina("/", dropin_dirname);
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r = strv_extend_strv_concat(&dropin_dirs, (char**) conf_file_dirs, suffix);
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if (r < 0)
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return r;
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r = conf_files_list_strv(&files, ".conf", NULL, 0, (const char* const*) dropin_dirs);
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if (r < 0)
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return r;
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return config_parse_many_files(conf_file, files,
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sections, lookup, table, relaxed, userdata);
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}
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#define DEFINE_PARSER(type, vartype, conv_func) \
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int config_parse_##type( \
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const char *unit, \
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const char *filename, \
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unsigned line, \
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const char *section, \
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unsigned section_line, \
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const char *lvalue, \
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int ltype, \
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const char *rvalue, \
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void *data, \
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void *userdata) { \
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\
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vartype *i = data; \
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int r; \
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\
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assert(filename); \
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assert(lvalue); \
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assert(rvalue); \
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assert(data); \
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\
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r = conv_func(rvalue, i); \
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if (r < 0) \
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log_syntax(unit, LOG_ERR, filename, line, r, \
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"Failed to parse %s value, ignoring: %s", \
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#type, rvalue); \
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\
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return 0; \
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} \
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struct __useless_struct_to_allow_trailing_semicolon__
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DEFINE_PARSER(int, int, safe_atoi);
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DEFINE_PARSER(long, long, safe_atoli);
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DEFINE_PARSER(uint8, uint8_t, safe_atou8);
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DEFINE_PARSER(uint16, uint16_t, safe_atou16);
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DEFINE_PARSER(uint32, uint32_t, safe_atou32);
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DEFINE_PARSER(uint64, uint64_t, safe_atou64);
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DEFINE_PARSER(unsigned, unsigned, safe_atou);
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DEFINE_PARSER(double, double, safe_atod);
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DEFINE_PARSER(nsec, nsec_t, parse_nsec);
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DEFINE_PARSER(sec, usec_t, parse_sec);
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DEFINE_PARSER(mode, mode_t, parse_mode);
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|
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int config_parse_iec_size(const char* unit,
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const char *filename,
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unsigned line,
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const char *section,
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unsigned section_line,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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size_t *sz = data;
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uint64_t v;
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int r;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(data);
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r = parse_size(rvalue, 1024, &v);
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if (r < 0 || (uint64_t) (size_t) v != v) {
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log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse size value, ignoring: %s", rvalue);
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return 0;
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}
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*sz = (size_t) v;
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return 0;
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}
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int config_parse_si_size(const char* unit,
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const char *filename,
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unsigned line,
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const char *section,
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unsigned section_line,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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|
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size_t *sz = data;
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uint64_t v;
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int r;
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|
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(data);
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r = parse_size(rvalue, 1000, &v);
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if (r < 0 || (uint64_t) (size_t) v != v) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse size value, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
*sz = (size_t) v;
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_iec_uint64(const char* unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
uint64_t *bytes = data;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
r = parse_size(rvalue, 1024, bytes);
|
|
if (r < 0)
|
|
log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse size value, ignoring: %s", rvalue);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_bool(const char* unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
int k;
|
|
bool *b = data;
|
|
bool fatal = ltype;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
k = parse_boolean(rvalue);
|
|
if (k < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, k,
|
|
"Failed to parse boolean value%s: %s",
|
|
fatal ? "" : ", ignoring", rvalue);
|
|
return fatal ? -ENOEXEC : 0;
|
|
}
|
|
|
|
*b = !!k;
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_tristate(
|
|
const char* unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
int k, *t = data;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
/* A tristate is pretty much a boolean, except that it can
|
|
* also take the special value -1, indicating "uninitialized",
|
|
* much like NULL is for a pointer type. */
|
|
|
|
k = parse_boolean(rvalue);
|
|
if (k < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, k, "Failed to parse boolean value, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
*t = !!k;
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_string(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
char **s = data, *n;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (!utf8_is_valid(rvalue)) {
|
|
log_syntax_invalid_utf8(unit, LOG_ERR, filename, line, rvalue);
|
|
return 0;
|
|
}
|
|
|
|
if (isempty(rvalue))
|
|
n = NULL;
|
|
else {
|
|
n = strdup(rvalue);
|
|
if (!n)
|
|
return log_oom();
|
|
}
|
|
|
|
free(*s);
|
|
*s = n;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_path(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
char **s = data, *n;
|
|
bool fatal = ltype;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (isempty(rvalue)) {
|
|
n = NULL;
|
|
goto finalize;
|
|
}
|
|
|
|
if (!utf8_is_valid(rvalue)) {
|
|
log_syntax_invalid_utf8(unit, LOG_ERR, filename, line, rvalue);
|
|
return fatal ? -ENOEXEC : 0;
|
|
}
|
|
|
|
if (!path_is_absolute(rvalue)) {
|
|
log_syntax(unit, LOG_ERR, filename, line, 0,
|
|
"Not an absolute path%s: %s",
|
|
fatal ? "" : ", ignoring", rvalue);
|
|
return fatal ? -ENOEXEC : 0;
|
|
}
|
|
|
|
n = strdup(rvalue);
|
|
if (!n)
|
|
return log_oom();
|
|
|
|
path_kill_slashes(n);
|
|
|
|
finalize:
|
|
free(*s);
|
|
*s = n;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_strv(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
char ***sv = data;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (isempty(rvalue)) {
|
|
*sv = strv_free(*sv);
|
|
return 0;
|
|
}
|
|
|
|
for (;;) {
|
|
char *word = NULL;
|
|
|
|
r = extract_first_word(&rvalue, &word, NULL, EXTRACT_QUOTES|EXTRACT_RETAIN_ESCAPE);
|
|
if (r == 0)
|
|
break;
|
|
if (r == -ENOMEM)
|
|
return log_oom();
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
|
|
break;
|
|
}
|
|
|
|
if (!utf8_is_valid(word)) {
|
|
log_syntax_invalid_utf8(unit, LOG_ERR, filename, line, word);
|
|
free(word);
|
|
continue;
|
|
}
|
|
|
|
r = strv_consume(sv, word);
|
|
if (r < 0)
|
|
return log_oom();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_log_facility(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
|
|
int *o = data, x;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
x = log_facility_unshifted_from_string(rvalue);
|
|
if (x < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse log facility, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
*o = (x << 3) | LOG_PRI(*o);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_log_level(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
|
|
int *o = data, x;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
x = log_level_from_string(rvalue);
|
|
if (x < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse log level, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
*o = (*o & LOG_FACMASK) | x;
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_signal(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
int *sig = data, r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(sig);
|
|
|
|
r = signal_from_string_try_harder(rvalue);
|
|
if (r <= 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse signal name, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
*sig = r;
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_personality(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
unsigned long *personality = data, p;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(personality);
|
|
|
|
if (isempty(rvalue))
|
|
p = PERSONALITY_INVALID;
|
|
else {
|
|
p = personality_from_string(rvalue);
|
|
if (p == PERSONALITY_INVALID) {
|
|
log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse personality, ignoring: %s", rvalue);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
*personality = p;
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_ifname(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
char **s = data;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (isempty(rvalue)) {
|
|
*s = mfree(*s);
|
|
return 0;
|
|
}
|
|
|
|
if (!ifname_valid(rvalue)) {
|
|
log_syntax(unit, LOG_ERR, filename, line, 0, "Interface name is not valid or too long, ignoring assignment: %s", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
r = free_and_strdup(s, rvalue);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
return 0;
|
|
}
|
|
|
|
int config_parse_ip_port(
|
|
const char *unit,
|
|
const char *filename,
|
|
unsigned line,
|
|
const char *section,
|
|
unsigned section_line,
|
|
const char *lvalue,
|
|
int ltype,
|
|
const char *rvalue,
|
|
void *data,
|
|
void *userdata) {
|
|
|
|
uint16_t *s = data;
|
|
uint16_t port;
|
|
int r;
|
|
|
|
assert(filename);
|
|
assert(lvalue);
|
|
assert(rvalue);
|
|
assert(data);
|
|
|
|
if (isempty(rvalue)) {
|
|
*s = 0;
|
|
return 0;
|
|
}
|
|
|
|
r = parse_ip_port(rvalue, &port);
|
|
if (r < 0) {
|
|
log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse port '%s'.", rvalue);
|
|
return 0;
|
|
}
|
|
|
|
*s = port;
|
|
|
|
return 0;
|
|
}
|