#include <signal.h>
#include <sys/types.h>
#include <sys/wait.h>
+#include <regex.h>
#include <dbus/dbus-glib.h>
#include "browser-switchboard.h"
}
static void read_config(int signalnum) {
- char * homedir;
- char * configfile;
+ char *homedir, *configfile;
size_t len;
char buf[MAXLINE];
- char * tmp;
- char * value;
- char * default_browser = NULL;
- FILE * fp;
+ char *key, *value;
+ char *default_browser = NULL;
+ FILE *fp;
+ regex_t re_ignore, re_config1, re_config2;
+ regmatch_t substrs[3];
set_config_defaults(&ctx);
if (!(fp = fopen(configfile, "r")))
goto out_noopen;
+ /* compile regex matching blank lines or comments */
+ if (regcomp(&re_ignore, "^[[:space:]]*(#|$)", REG_EXTENDED|REG_NOSUB))
+ goto out_nore;
+ /* compile regex matching foo = "bar", with arbitrary whitespace at
+ beginning and end of line and surrounding the = */
+ if (regcomp(&re_config1,
+ "^[[:space:]]*([^=[:space:]]+)[[:space:]]*=[[:space:]]*\"(.*)\"[[:space:]]*$",
+ REG_EXTENDED)) {
+ regfree(&re_ignore);
+ goto out_nore;
+ }
+ /* compile regex matching foo = bar, with arbitrary whitespace at
+ beginning of line and surrounding the = */
+ if (regcomp(&re_config2,
+ "^[[:space:]]*([^=[:space:]]+)[[:space:]]*=[[:space:]]*(.*)$",
+ REG_EXTENDED|REG_NEWLINE)) {
+ regfree(&re_ignore);
+ regfree(&re_config1);
+ goto out_nore;
+ }
+
/* Read in the config file one line at a time and parse it
XXX doesn't deal with lines longer than MAXLINE */
while (fgets(buf, MAXLINE, fp)) {
- /* skip comments */
- if (buf[0] == '#')
+ printf("%s", buf);
+ /* skip blank lines and comments */
+ if (!regexec(&re_ignore, buf, 0, NULL, 0))
continue;
- /* look for the = in the line */
- if (!(tmp = strchr(buf, '=')))
+
+ /* Find the substrings corresponding to the key and value
+ If the line doesn't match our idea of a config file entry,
+ skip it */
+ if (regexec(&re_config1, buf, 3, substrs, 0) &&
+ regexec(&re_config2, buf, 3, substrs, 0))
+ continue;
+ if (substrs[1].rm_so == -1 || substrs[2].rm_so == -1)
continue;
- /* split the line into parameter (before =, in buf) and
- value (after =, in value) */
- if (!(value = calloc(strlen(tmp+1)+1, sizeof(char))))
+ /* copy the config value into a new string */
+ len = substrs[2].rm_eo - substrs[2].rm_so;
+ if (!(value = calloc(len+1, sizeof(char))))
goto out;
- strncpy(value, tmp+1, strlen(tmp+1));
- value[strlen(tmp+1)] = '\0';
- /* scribble over the = in buf with a \0 -- that makes buf
- just the parameter name */
- *tmp = '\0';
- /* if we find a newline in value, replace that with a \0 too */
- if ((tmp = strchr(value, '\n')))
- *tmp = '\0';
-
- if (!strcmp(buf, "continuous_mode")) {
+ strncpy(value, buf+substrs[2].rm_so, len);
+ /* calloc() zeroes the memory, so string is automatically
+ null terminated */
+
+ /* make key point to a null-terminated string holding the
+ config key */
+ key = buf + substrs[1].rm_so;
+ buf[substrs[1].rm_eo] = '\0';
+
+ if (!strcmp(key, "continuous_mode")) {
ctx.continuous_mode = atoi(value);
free(value);
- } else if (!strcmp(buf, "default_browser")) {
+ } else if (!strcmp(key, "default_browser")) {
if (!default_browser)
default_browser = value;
- } else if (!strcmp(buf, "other_browser_cmd")) {
+ } else if (!strcmp(key, "other_browser_cmd")) {
if (!ctx.other_browser_cmd)
ctx.other_browser_cmd = value;
} else {
printf("other_browser_cmd: '%s'\n", ctx.other_browser_cmd?ctx.other_browser_cmd:"NULL");
out:
+ regfree(&re_ignore);
+ regfree(&re_config1);
+ regfree(&re_config2);
+out_nore:
fclose(fp);
out_noopen:
update_default_browser(&ctx, default_browser);