1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
9 #include "conf-parser.h"
14 #define WHITESPACE " \t\n"
15 #define COMMENTS "#;\n"
18 /* Run the user supplied parser for an assignment */
19 static int next_assignment(
33 for (; t->parse; t++) {
35 if (t->lvalue && !streq(lvalue, t->lvalue))
38 if (t->section && !section)
41 if (t->section && !streq(section, t->section))
44 return t->parse(filename, line, section, lvalue, rvalue, t->data, userdata);
47 fprintf(stderr, "[%s:%u] Unknown lvalue '%s' in section '%s'.\n", filename, line, lvalue, strna(section));
51 /* Returns non-zero when c is contained in s */
52 static int in_string(char c, const char *s) {
62 /* Remove all whitepsapce from the beginning and the end of *s. *s may
64 static char *strip(char *s) {
65 char *b = s+strspn(s, WHITESPACE);
69 if (!in_string(*e, WHITESPACE))
78 /* Parse a variable assignment line */
79 static int parse_line(const char *filename, unsigned line, char **section, const char* const * sections, const ConfigItem *t, char *l, void *userdata) {
82 b = l+strspn(l, WHITESPACE);
84 if ((c = strpbrk(b, COMMENTS)))
90 if (startswith(b, ".include ")) {
91 char *path = NULL, *fn;
95 if (!is_path_absolute(fn)) {
98 if ((k = strrchr(filename, '/'))) {
101 if (!(dir = strndup(filename, k-filename)))
104 if (asprintf(&path, "%s/%s", dir, fn) < 0)
112 r = config_parse(fn, sections, t, userdata);
125 fprintf(stderr, "[%s:%u] Invalid section header.\n", filename, line);
129 if (!(n = strndup(b+1, k-2)))
133 const char * const * i;
135 STRV_FOREACH(i, sections)
153 if (!(e = strchr(b, '='))) {
154 fprintf(stderr, "[%s:%u] Missing '='.\n", filename, line);
161 return next_assignment(filename, line, *section, t, strip(b), strip(e), userdata);
164 /* Go through the file and parse each line */
165 int config_parse(const char *filename, const char* const * sections, const ConfigItem *t, void *userdata) {
167 char *section = NULL;
174 if (!(f = fopen(filename, "re"))) {
176 fprintf(stderr, "Failed to open configuration file '%s': %s\n", filename, strerror(-r));
183 if (!fgets(l, sizeof(l), f)) {
188 fprintf(stderr, "Failed to read configuration file '%s': %s\n", filename, strerror(-r));
192 if ((r = parse_line(filename, ++line, §ion, sections, t, l, userdata)) < 0)
207 int config_parse_int(
208 const char *filename,
224 if ((r = safe_atoi(rvalue, i)) < 0) {
225 fprintf(stderr, "[%s:%u] Failed to parse numeric value: %s\n", filename, line, rvalue);
232 int config_parse_unsigned(
233 const char *filename,
249 if ((r = safe_atou(rvalue, u)) < 0) {
250 fprintf(stderr, "[%s:%u] Failed to parse numeric value: %s\n", filename, line, rvalue);
257 int config_parse_size(
258 const char *filename,
275 if ((r = safe_atou(rvalue, &u)) < 0) {
276 fprintf(stderr, "[%s:%u] Failed to parse numeric value: %s\n", filename, line, rvalue);
284 int config_parse_bool(
285 const char *filename,
301 if ((k = parse_boolean(rvalue)) < 0) {
302 fprintf(stderr, "[%s:%u] Failed to parse boolean value: %s\n", filename, line, rvalue);
310 int config_parse_string(
311 const char *filename,
328 if (!(n = strdup(rvalue)))
340 int config_parse_strv(
341 const char *filename,
361 k = strv_length(*sv);
362 FOREACH_WORD(w, &l, rvalue, state)
365 if (!(n = new(char*, k+1)))
368 for (k = 0; (*sv)[k]; k++)
370 FOREACH_WORD(w, &l, rvalue, state)
371 if (!(n[k++] = strndup(w, l)))