9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen#include "lib.h"

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen#include "istream.h"

3f8a5d2a09e90961d1d86dea294be162ccdb64a8Timo Sirainen#include "strescape.h"

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen#include "settings.h"

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen#include <stdio.h>

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen#include <fcntl.h>

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen

6ef7e31619edfaa17ed044b45861d106a86191efTimo Sirainenstatic const char *get_bool(const char *value, bool *result)

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen{

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen if (strcasecmp(value, "yes") == 0)

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen *result = TRUE;

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen else if (strcasecmp(value, "no") == 0)

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen *result = FALSE;

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen else

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen return t_strconcat("Invalid boolean: ", value, NULL);

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen return NULL;

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen}

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainenstatic const char *get_uint(const char *value, unsigned int *result)

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen{

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen int num;

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen if (!sscanf(value, "%i", &num) || num < 0)

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen return t_strconcat("Invalid number: ", value, NULL);

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen *result = num;

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen return NULL;

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen}

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainenconst char *

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainenparse_setting_from_defs(pool_t pool, struct setting_def *defs, void *base,

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen const char *key, const char *value)

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen{

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen struct setting_def *def;

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen for (def = defs; def->name != NULL; def++) {

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen if (strcmp(def->name, key) == 0) {

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen void *ptr = STRUCT_MEMBER_P(base, def->offset);

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen switch (def->type) {

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen case SET_STR:

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen *((char **) ptr) =

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen p_strdup_empty(pool, value);

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen return NULL;

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen case SET_INT:

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen /* use %i so we can handle eg. 0600

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen return get_uint(value, (unsigned int *) ptr);

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen case SET_BOOL:

6ef7e31619edfaa17ed044b45861d106a86191efTimo Sirainen return get_bool(value, (bool *) ptr);

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen }

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen }

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen }

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen return t_strconcat("Unknown setting: ", key, NULL);

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen}

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen#define IS_WHITE(c) ((c) == ' ' || (c) == '\t')

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen

6ef7e31619edfaa17ed044b45861d106a86191efTimo Sirainenbool settings_read(const char *path, const char *section,

6ef7e31619edfaa17ed044b45861d106a86191efTimo Sirainen settings_callback_t *callback,

6ef7e31619edfaa17ed044b45861d106a86191efTimo Sirainen settings_section_callback_t *sect_callback, void *context)

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen{

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen struct istream *input;

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen const char *errormsg, *next_section;

6cc8fac7fd9b47e179629a61acef0e8758763803Timo Sirainen char *line, *key, *name, *p, quote;

3f8a5d2a09e90961d1d86dea294be162ccdb64a8Timo Sirainen size_t len;

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen int fd, linenum, skip, sections, root_section;

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen fd = open(path, O_RDONLY);

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen if (fd < 0) {

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen i_error("Can't open configuration file %s: %m", path);

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen return FALSE;

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen }

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen t_push();

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen if (section == NULL) {

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen skip = 0;

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen next_section = NULL;

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen } else {

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen skip = 1;

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen next_section = t_strcut(section, '/');

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen }

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen linenum = 0; sections = 0; root_section = 0; errormsg = NULL;

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen input = i_stream_create_file(fd, default_pool, 2048, TRUE);

89e195dfb5c4b0efd9b9f459771a4467674e5b1fTimo Sirainen while ((line = i_stream_read_next_line(input)) != NULL) {

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen linenum++;

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen /* @UNSAFE: line is modified */

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen /* skip whitespace */

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen while (IS_WHITE(*line))

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen line++;

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen /* ignore comments or empty lines */

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen if (*line == '#' || *line == '\0')

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen continue;

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen

6cc8fac7fd9b47e179629a61acef0e8758763803Timo Sirainen /* strip away comments. pretty kludgy way really.. */

6cc8fac7fd9b47e179629a61acef0e8758763803Timo Sirainen for (p = line; *p != '\0'; p++) {

6cc8fac7fd9b47e179629a61acef0e8758763803Timo Sirainen if (*p == '\'' || *p == '"') {

6cc8fac7fd9b47e179629a61acef0e8758763803Timo Sirainen quote = *p;

6cc8fac7fd9b47e179629a61acef0e8758763803Timo Sirainen for (p++; *p != quote && *p != '\0'; p++) {

6cc8fac7fd9b47e179629a61acef0e8758763803Timo Sirainen if (*p == '\\' && p[1] != '\0')

6cc8fac7fd9b47e179629a61acef0e8758763803Timo Sirainen p++;

6cc8fac7fd9b47e179629a61acef0e8758763803Timo Sirainen }

6cc8fac7fd9b47e179629a61acef0e8758763803Timo Sirainen if (*p == '\0')

6cc8fac7fd9b47e179629a61acef0e8758763803Timo Sirainen break;

6cc8fac7fd9b47e179629a61acef0e8758763803Timo Sirainen } else if (*p == '#') {

6cc8fac7fd9b47e179629a61acef0e8758763803Timo Sirainen *p = '\0';

6cc8fac7fd9b47e179629a61acef0e8758763803Timo Sirainen break;

6cc8fac7fd9b47e179629a61acef0e8758763803Timo Sirainen }

6cc8fac7fd9b47e179629a61acef0e8758763803Timo Sirainen }

6cc8fac7fd9b47e179629a61acef0e8758763803Timo Sirainen

3f8a5d2a09e90961d1d86dea294be162ccdb64a8Timo Sirainen /* remove whitespace from end of line */

3f8a5d2a09e90961d1d86dea294be162ccdb64a8Timo Sirainen len = strlen(line);

3f8a5d2a09e90961d1d86dea294be162ccdb64a8Timo Sirainen while (IS_WHITE(line[len-1]))

3f8a5d2a09e90961d1d86dea294be162ccdb64a8Timo Sirainen len--;

3f8a5d2a09e90961d1d86dea294be162ccdb64a8Timo Sirainen line[len] = '\0';

3f8a5d2a09e90961d1d86dea294be162ccdb64a8Timo Sirainen

3f8a5d2a09e90961d1d86dea294be162ccdb64a8Timo Sirainen /* a) key = value

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen key = line;

337e0bdea4c5b1a9e3ac3e915b31a6413f46220cTimo Sirainen while (!IS_WHITE(*line) && *line != '\0' && *line != '=')

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen line++;

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen if (IS_WHITE(*line)) {

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen *line++ = '\0';

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen while (IS_WHITE(*line)) line++;

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen }

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen if (*line == '=') {

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen /* a) */

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen *line++ = '\0';

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen while (IS_WHITE(*line)) line++;

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen

3f8a5d2a09e90961d1d86dea294be162ccdb64a8Timo Sirainen len = strlen(line);

3f8a5d2a09e90961d1d86dea294be162ccdb64a8Timo Sirainen if (len > 0 &&

3f8a5d2a09e90961d1d86dea294be162ccdb64a8Timo Sirainen ((*line == '"' && line[len-1] == '"') ||

3f8a5d2a09e90961d1d86dea294be162ccdb64a8Timo Sirainen (*line == '\'' && line[len-1] == '\''))) {

3f8a5d2a09e90961d1d86dea294be162ccdb64a8Timo Sirainen line[len-1] = '\0';

3f8a5d2a09e90961d1d86dea294be162ccdb64a8Timo Sirainen line = str_unescape(line+1);

3f8a5d2a09e90961d1d86dea294be162ccdb64a8Timo Sirainen }

3f8a5d2a09e90961d1d86dea294be162ccdb64a8Timo Sirainen

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen errormsg = skip ? NULL :

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen callback(key, line, context);

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen } else if (strcmp(key, "}") != 0 || *line != '\0') {

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen /* b) + errors */

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen line[-1] = '\0';

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen if (*line == '{')

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen name = "";

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen else {

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen name = line;

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen while (!IS_WHITE(*line) && *line != '\0')

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen line++;

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen if (*line != '\0') {

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen *line++ = '\0';

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen while (IS_WHITE(*line))

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen line++;

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen }

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen }

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen

3f8a5d2a09e90961d1d86dea294be162ccdb64a8Timo Sirainen if (*line != '{')

84e83fa1f6ec489b473a94ab7698c5b4a9987541Timo Sirainen errormsg = "Expecting '='";

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen else {

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen sections++;

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen if (next_section != NULL &&

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen strcmp(next_section, name) == 0) {

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen section += strlen(next_section);

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen if (*section == '\0') {

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen skip = 0;

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen next_section = NULL;

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen root_section = sections;

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen } else {

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen i_assert(*section == '/');

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen section++;

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen next_section =

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen t_strcut(section, '/');

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen }

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen }

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen if (skip > 0)

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen skip++;

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen else {

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen skip = sect_callback == NULL ? 1 :

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen !sect_callback(key, name,

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen context,

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen &errormsg);

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen }

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen }

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen } else {

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen /* c) */

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen if (sections == 0)

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen errormsg = "Unexpected '}'";

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen else {

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen if (skip > 0)

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen skip--;

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen else {

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen sect_callback(NULL, NULL, context,

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen &errormsg);

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen if (root_section == sections &&

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen errormsg == NULL) {

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen /* we found the section,

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen break;

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen }

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen }

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen sections--;

d81433c272dc189ff50ecde109cd0040f21fa8b0Timo Sirainen }

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen }

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen if (errormsg != NULL) {

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen i_error("Error in configuration file %s line %d: %s",

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen path, linenum, errormsg);

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen break;

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen }

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen }

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen i_stream_unref(input);

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen t_pop();

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen

0cb57ee35d4cab9c03434d7abf312c081ed554d4Timo Sirainen return errormsg == NULL;

9e49712b9cddbf47568ea4f3676e59b151489356Timo Sirainen}