1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
9 #include "conf-parser.h"
13 #define WHITESPACE " \t\n"
14 #define COMMENTS "#;\n"
17 /* Run the user supplied parser for an assignment */
18 static int next_assignment(
32 for (; t->parse; t++) {
34 if (t->lvalue && !streq(lvalue, t->lvalue))
37 if (t->section && !section)
40 if (t->section && !streq(section, t->section))
43 return t->parse(filename, line, section, lvalue, rvalue, t->data, userdata);
46 fprintf(stderr, "[%s:%u] Unknown lvalue '%s' in section '%s'.", filename, line, lvalue, strna(section));
50 /* Returns non-zero when c is contained in s */
51 static int in_string(char c, const char *s) {
61 /* Remove all whitepsapce from the beginning and the end of *s. *s may
63 static char *strip(char *s) {
64 char *b = s+strspn(s, WHITESPACE);
68 if (!in_string(*e, WHITESPACE))
77 /* Parse a variable assignment line */
78 static int parse_line(const char *filename, unsigned line, char **section, const ConfigItem *t, char *l, void *userdata) {
81 b = l+strspn(l, WHITESPACE);
83 if ((c = strpbrk(b, COMMENTS)))
89 if (startswith(b, ".include ")) {
90 char *path = NULL, *fn;
94 if (!is_path_absolute(fn)) {
97 if ((k = strrchr(filename, '/'))) {
100 if (!(dir = strndup(filename, k-filename)))
103 if (asprintf(&path, "%s/%s", dir, fn) < 0)
111 r = config_parse(fn, t, userdata);
124 fprintf(stderr, "[%s:%u] Invalid section header.", filename, line);
128 if (!(n = strndup(b+1, k-2)))
137 if (!(e = strchr(b, '='))) {
138 fprintf(stderr, "[%s:%u] Missing '='.", filename, line);
145 return next_assignment(filename, line, *section, t, strip(b), strip(e), userdata);
148 /* Go through the file and parse each line */
149 int config_parse(const char *filename, const ConfigItem *t, void *userdata) {
151 char *section = NULL;
158 if (!(f = fopen(filename, "re"))) {
160 fprintf(stderr, "Failed to open configuration file '%s': %s", filename, strerror(-r));
167 if (!fgets(l, sizeof(l), f)) {
172 fprintf(stderr, "Failed to read configuration file '%s': %s", filename, strerror(-r));
176 if ((r = parse_line(filename, ++line, §ion, t, l, userdata)) < 0)
191 int config_parse_int(
192 const char *filename,
208 if ((r = safe_atoi(rvalue, i)) < 0) {
209 fprintf(stderr, "[%s:%u] Failed to parse numeric value: %s", filename, line, rvalue);
216 int config_parse_unsigned(
217 const char *filename,
233 if ((r = safe_atou(rvalue, u)) < 0) {
234 fprintf(stderr, "[%s:%u] Failed to parse numeric value: %s", filename, line, rvalue);
241 int config_parse_size(
242 const char *filename,
259 if ((r = safe_atou(rvalue, &u)) < 0) {
260 fprintf(stderr, "[%s:%u] Failed to parse numeric value: %s", filename, line, rvalue);
268 int config_parse_bool(
269 const char *filename,
285 if ((k = parse_boolean(rvalue)) < 0) {
286 fprintf(stderr, "[%s:%u] Failed to parse boolean value: %s", filename, line, rvalue);
294 int config_parse_string(
295 const char *filename,
312 if (!(n = strdup(rvalue)))