+++ /dev/null
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2010 Lennart Poettering
-
- systemd 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.
-
- systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <string.h>
-#include <stdio.h>
-#include <errno.h>
-#include <assert.h>
-#include <stdlib.h>
-
-#include "conf-parser.h"
-#include "util.h"
-#include "macro.h"
-#include "strv.h"
-#include "log.h"
-#include "utf8.h"
-
-int config_item_table_lookup(
- void *table,
- const char *section,
- const char *lvalue,
- ConfigParserCallback *func,
- int *ltype,
- void **data,
- void *userdata) {
-
- ConfigTableItem *t;
-
- assert(table);
- assert(lvalue);
- assert(func);
- assert(ltype);
- assert(data);
-
- for (t = table; t->lvalue; t++) {
-
- if (!streq(lvalue, t->lvalue))
- continue;
-
- if (!streq_ptr(section, t->section))
- continue;
-
- *func = t->parse;
- *ltype = t->ltype;
- *data = t->data;
- return 1;
- }
-
- return 0;
-}
-
-int config_item_perf_lookup(
- void *table,
- const char *section,
- const char *lvalue,
- ConfigParserCallback *func,
- int *ltype,
- void **data,
- void *userdata) {
-
- ConfigPerfItemLookup lookup = (ConfigPerfItemLookup) table;
- const ConfigPerfItem *p;
-
- assert(table);
- assert(lvalue);
- assert(func);
- assert(ltype);
- assert(data);
-
- if (!section)
- p = lookup(lvalue, strlen(lvalue));
- else {
- char *key;
-
- key = join(section, ".", lvalue, NULL);
- if (!key)
- return -ENOMEM;
-
- p = lookup(key, strlen(key));
- free(key);
- }
-
- if (!p)
- return 0;
-
- *func = p->parse;
- *ltype = p->ltype;
- *data = (uint8_t*) userdata + p->offset;
- return 1;
-}
-
-/* Run the user supplied parser for an assignment */
-static int next_assignment(
- const char *filename,
- unsigned line,
- ConfigItemLookup lookup,
- void *table,
- const char *section,
- const char *lvalue,
- const char *rvalue,
- bool relaxed,
- void *userdata) {
-
- ConfigParserCallback func = NULL;
- int ltype = 0;
- void *data = NULL;
- int r;
-
- assert(filename);
- assert(line > 0);
- assert(lookup);
- assert(lvalue);
- assert(rvalue);
-
- r = lookup(table, section, lvalue, &func, <ype, &data, userdata);
- if (r < 0)
- return r;
-
- if (r > 0) {
- if (func)
- return func(filename, line, section, lvalue, ltype, rvalue, data, userdata);
-
- return 0;
- }
-
- /* Warn about unknown non-extension fields. */
- if (!relaxed && !startswith(lvalue, "X-"))
- log_info("[%s:%u] Unknown lvalue '%s' in section '%s'. Ignoring.", filename, line, lvalue, section);
-
- return 0;
-}
-
-/* Parse a variable assignment line */
-static int parse_line(
- const char *filename,
- unsigned line,
- const char *sections,
- ConfigItemLookup lookup,
- void *table,
- bool relaxed,
- char **section,
- char *l,
- void *userdata) {
-
- char *e;
-
- assert(filename);
- assert(line > 0);
- assert(lookup);
- assert(l);
-
- l = strstrip(l);
-
- if (!*l)
- return 0;
-
- if (strchr(COMMENTS, *l))
- return 0;
-
- if (startswith(l, ".include ")) {
- char *fn;
- int r;
-
- fn = file_in_same_dir(filename, strstrip(l+9));
- if (!fn)
- return -ENOMEM;
-
- r = config_parse(fn, NULL, sections, lookup, table, relaxed, userdata);
- free(fn);
-
- return r;
- }
-
- if (*l == '[') {
- size_t k;
- char *n;
-
- k = strlen(l);
- assert(k > 0);
-
- if (l[k-1] != ']') {
- log_error("[%s:%u] Invalid section header.", filename, line);
- return -EBADMSG;
- }
-
- n = strndup(l+1, k-2);
- if (!n)
- return -ENOMEM;
-
- if (sections && !nulstr_contains(sections, n)) {
-
- if (!relaxed)
- log_info("[%s:%u] Unknown section '%s'. Ignoring.", filename, line, n);
-
- free(n);
- *section = NULL;
- } else {
- free(*section);
- *section = n;
- }
-
- return 0;
- }
-
- if (sections && !*section) {
-
- if (!relaxed)
- log_info("[%s:%u] Assignment outside of section. Ignoring.", filename, line);
-
- return 0;
- }
-
- e = strchr(l, '=');
- if (!e) {
- log_error("[%s:%u] Missing '='.", filename, line);
- return -EBADMSG;
- }
-
- *e = 0;
- e++;
-
- return next_assignment(
- filename,
- line,
- lookup,
- table,
- *section,
- strstrip(l),
- strstrip(e),
- relaxed,
- userdata);
-}
-
-/* Go through the file and parse each line */
-int config_parse(
- const char *filename,
- FILE *f,
- const char *sections,
- ConfigItemLookup lookup,
- void *table,
- bool relaxed,
- void *userdata) {
-
- unsigned line = 0;
- char *section = NULL;
- int r;
- bool ours = false;
- char *continuation = NULL;
-
- assert(filename);
- assert(lookup);
-
- if (!f) {
- f = fopen(filename, "re");
- if (!f) {
- r = -errno;
- log_error("Failed to open configuration file '%s': %s", filename, strerror(-r));
- goto finish;
- }
-
- ours = true;
- }
-
- while (!feof(f)) {
- char l[LINE_MAX], *p, *c = NULL, *e;
- bool escaped = false;
-
- if (!fgets(l, sizeof(l), f)) {
- if (feof(f))
- break;
-
- r = -errno;
- log_error("Failed to read configuration file '%s': %s", filename, strerror(-r));
- goto finish;
- }
-
- truncate_nl(l);
-
- if (continuation) {
- c = strappend(continuation, l);
- if (!c) {
- r = -ENOMEM;
- goto finish;
- }
-
- free(continuation);
- continuation = NULL;
- p = c;
- } else
- p = l;
-
- for (e = p; *e; e++) {
- if (escaped)
- escaped = false;
- else if (*e == '\\')
- escaped = true;
- }
-
- if (escaped) {
- *(e-1) = ' ';
-
- if (c)
- continuation = c;
- else {
- continuation = strdup(l);
- if (!continuation) {
- r = -ENOMEM;
- goto finish;
- }
- }
-
- continue;
- }
-
- r = parse_line(filename,
- ++line,
- sections,
- lookup,
- table,
- relaxed,
- §ion,
- p,
- userdata);
- free(c);
-
- if (r < 0)
- goto finish;
- }
-
- r = 0;
-
-finish:
- free(section);
- free(continuation);
-
- if (f && ours)
- fclose(f);
-
- return r;
-}
-
-int config_parse_int(
- const char *filename,
- unsigned line,
- const char *section,
- const char *lvalue,
- int ltype,
- const char *rvalue,
- void *data,
- void *userdata) {
-
- int *i = data;
- int r;
-
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- if ((r = safe_atoi(rvalue, i)) < 0) {
- log_error("[%s:%u] Failed to parse numeric value, ingoring: %s", filename, line, rvalue);
- return 0;
- }
-
- return 0;
-}
-
-int config_parse_long(
- const char *filename,
- unsigned line,
- const char *section,
- const char *lvalue,
- int ltype,
- const char *rvalue,
- void *data,
- void *userdata) {
-
- long *i = data;
- int r;
-
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- if ((r = safe_atoli(rvalue, i)) < 0) {
- log_error("[%s:%u] Failed to parse numeric value, ignoring: %s", filename, line, rvalue);
- return 0;
- }
-
- return 0;
-}
-
-int config_parse_uint64(
- const char *filename,
- unsigned line,
- const char *section,
- const char *lvalue,
- int ltype,
- const char *rvalue,
- void *data,
- void *userdata) {
-
- uint64_t *u = data;
- int r;
-
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- if ((r = safe_atou64(rvalue, u)) < 0) {
- log_error("[%s:%u] Failed to parse numeric value, ignoring: %s", filename, line, rvalue);
- return 0;
- }
-
- return 0;
-}
-
-int config_parse_unsigned(
- const char *filename,
- unsigned line,
- const char *section,
- const char *lvalue,
- int ltype,
- const char *rvalue,
- void *data,
- void *userdata) {
-
- unsigned *u = data;
- int r;
-
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- if ((r = safe_atou(rvalue, u)) < 0) {
- log_error("[%s:%u] Failed to parse numeric value: %s", filename, line, rvalue);
- return r;
- }
-
- return 0;
-}
-
-int config_parse_bytes_size(
- const char *filename,
- unsigned line,
- const char *section,
- const char *lvalue,
- int ltype,
- const char *rvalue,
- void *data,
- void *userdata) {
-
- size_t *sz = data;
- off_t o;
-
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- if (parse_bytes(rvalue, &o) < 0 || (off_t) (size_t) o != o) {
- log_error("[%s:%u] Failed to parse byte value, ignoring: %s", filename, line, rvalue);
- return 0;
- }
-
- *sz = (size_t) o;
- return 0;
-}
-
-
-int config_parse_bytes_off(
- const char *filename,
- unsigned line,
- const char *section,
- const char *lvalue,
- int ltype,
- const char *rvalue,
- void *data,
- void *userdata) {
-
- off_t *bytes = data;
-
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- assert_cc(sizeof(off_t) == sizeof(uint64_t));
-
- if (parse_bytes(rvalue, bytes) < 0) {
- log_error("[%s:%u] Failed to parse bytes value, ignoring: %s", filename, line, rvalue);
- return 0;
- }
-
- return 0;
-}
-
-int config_parse_bool(
- const char *filename,
- unsigned line,
- const char *section,
- const char *lvalue,
- int ltype,
- const char *rvalue,
- void *data,
- void *userdata) {
-
- int k;
- bool *b = data;
-
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- if ((k = parse_boolean(rvalue)) < 0) {
- log_error("[%s:%u] Failed to parse boolean value, ignoring: %s", filename, line, rvalue);
- return 0;
- }
-
- *b = !!k;
- return 0;
-}
-
-int config_parse_tristate(
- const char *filename,
- unsigned line,
- const char *section,
- const char *lvalue,
- int ltype,
- const char *rvalue,
- void *data,
- void *userdata) {
-
- int k;
- int *b = data;
-
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- /* Tristates are like booleans, but can also take the 'default' value, i.e. "-1" */
-
- k = parse_boolean(rvalue);
- if (k < 0) {
- log_error("[%s:%u] Failed to parse boolean value, ignoring: %s", filename, line, rvalue);
- return 0;
- }
-
- *b = !!k;
- return 0;
-}
-
-int config_parse_string(
- const char *filename,
- unsigned line,
- const char *section,
- const char *lvalue,
- int ltype,
- const char *rvalue,
- void *data,
- void *userdata) {
-
- char **s = data;
- char *n;
-
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- n = cunescape(rvalue);
- if (!n)
- return -ENOMEM;
-
- if (!utf8_is_valid(n)) {
- log_error("[%s:%u] String is not UTF-8 clean, ignoring assignment: %s", filename, line, rvalue);
- free(n);
- return 0;
- }
-
- free(*s);
- if (*n)
- *s = n;
- else {
- free(n);
- *s = NULL;
- }
-
- return 0;
-}
-
-int config_parse_path(
- const char *filename,
- unsigned line,
- const char *section,
- const char *lvalue,
- int ltype,
- const char *rvalue,
- void *data,
- void *userdata) {
-
- char **s = data;
- char *n;
-
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- if (!utf8_is_valid(rvalue)) {
- log_error("[%s:%u] Path is not UTF-8 clean, ignoring assignment: %s", filename, line, rvalue);
- return 0;
- }
-
- if (!path_is_absolute(rvalue)) {
- log_error("[%s:%u] Not an absolute path, ignoring: %s", filename, line, rvalue);
- return 0;
- }
-
- n = strdup(rvalue);
- if (!n)
- return -ENOMEM;
-
- path_kill_slashes(n);
-
- free(*s);
- *s = n;
-
- return 0;
-}
-
-int config_parse_strv(
- const char *filename,
- unsigned line,
- const char *section,
- const char *lvalue,
- int ltype,
- const char *rvalue,
- void *data,
- void *userdata) {
-
- char*** sv = data;
- char **n;
- char *w;
- unsigned k;
- size_t l;
- char *state;
- int r;
-
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- k = strv_length(*sv);
- FOREACH_WORD_QUOTED(w, l, rvalue, state)
- k++;
-
- n = new(char*, k+1);
- if (!n)
- return -ENOMEM;
-
- if (*sv)
- for (k = 0; (*sv)[k]; k++)
- n[k] = (*sv)[k];
- else
- k = 0;
-
- FOREACH_WORD_QUOTED(w, l, rvalue, state) {
- n[k] = cunescape_length(w, l);
- if (!n[k]) {
- r = -ENOMEM;
- goto fail;
- }
-
- if (!utf8_is_valid(n[k])) {
- log_error("[%s:%u] String is not UTF-8 clean, ignoring assignment: %s", filename, line, rvalue);
- free(n[k]);
- continue;
- }
-
- k++;
- }
-
- n[k] = NULL;
- free(*sv);
- *sv = n;
-
- return 0;
-
-fail:
- for (; k > 0; k--)
- free(n[k-1]);
- free(n);
-
- return r;
-}
-
-int config_parse_path_strv(
- const char *filename,
- unsigned line,
- const char *section,
- const char *lvalue,
- int ltype,
- const char *rvalue,
- void *data,
- void *userdata) {
-
- char*** sv = data;
- char **n;
- char *w;
- unsigned k;
- size_t l;
- char *state;
- int r;
-
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- k = strv_length(*sv);
- FOREACH_WORD_QUOTED(w, l, rvalue, state)
- k++;
-
- n = new(char*, k+1);
- if (!n)
- return -ENOMEM;
-
- k = 0;
- if (*sv)
- for (; (*sv)[k]; k++)
- n[k] = (*sv)[k];
-
- FOREACH_WORD_QUOTED(w, l, rvalue, state) {
- n[k] = strndup(w, l);
- if (!n[k]) {
- r = -ENOMEM;
- goto fail;
- }
-
- if (!utf8_is_valid(n[k])) {
- log_error("[%s:%u] Path is not UTF-8 clean, ignoring assignment: %s", filename, line, rvalue);
- free(n[k]);
- continue;
- }
-
- if (!path_is_absolute(n[k])) {
- log_error("[%s:%u] Not an absolute path, ignoring: %s", filename, line, rvalue);
- free(n[k]);
- continue;
- }
-
- path_kill_slashes(n[k]);
- k++;
- }
-
- n[k] = NULL;
- free(*sv);
- *sv = n;
-
- return 0;
-
-fail:
- for (; k > 0; k--)
- free(n[k-1]);
- free(n);
-
- return r;
-}
-
-int config_parse_usec(
- const char *filename,
- unsigned line,
- const char *section,
- const char *lvalue,
- int ltype,
- const char *rvalue,
- void *data,
- void *userdata) {
-
- usec_t *usec = data;
-
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- if (parse_usec(rvalue, usec) < 0) {
- log_error("[%s:%u] Failed to parse time value, ignoring: %s", filename, line, rvalue);
- return 0;
- }
-
- return 0;
-}
-
-int config_parse_mode(
- const char *filename,
- unsigned line,
- const char *section,
- const char *lvalue,
- int ltype,
- const char *rvalue,
- void *data,
- void *userdata) {
-
- mode_t *m = data;
- long l;
- char *x = NULL;
-
- assert(filename);
- assert(lvalue);
- assert(rvalue);
- assert(data);
-
- errno = 0;
- l = strtol(rvalue, &x, 8);
- if (!x || *x || errno) {
- log_error("[%s:%u] Failed to parse mode value, ignoring: %s", filename, line, rvalue);
- return 0;
- }
-
- if (l < 0000 || l > 07777) {
- log_error("[%s:%u] mode value out of range, ignoring: %s", filename, line, rvalue);
- return 0;
- }
-
- *m = (mode_t) l;
- return 0;
-}
~ianmdlvl / elogind.git / blobdiff