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Add generic expand_filename function to handle expanding ~/
svn:r2047
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@ -1453,6 +1453,27 @@ try_next_line:
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return 1;
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}
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/** Expand any homedir prefix on 'filename'; return a newly allocated
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* string. */
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char *expand_filename(const char *filename)
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{
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tor_assert(filename);
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if (!strncmp(filename,"~/",2)) {
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const char *home = getenv("HOME");
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char *result;
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if (!home) {
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log_fn(LOG_ERR, "Couldn't find $HOME environment variable while expanding %s", filename);
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return NULL;
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}
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/* minus two characters for ~/, plus one for /, plus one for NUL. */
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result = tor_malloc(strlen(home)+strlen(filename)+16);
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sprintf(result,"%s/%s",home,filename+2);
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return result;
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} else {
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return tor_strdup(filename);
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}
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}
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/** Return true iff <b>ip</b> (in host order) is an IP reserved to localhost,
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* or reserved for local networks by RFC 1918.
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*/
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@ -217,6 +217,7 @@ int check_private_dir(const char *dirname, int create);
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int write_str_to_file(const char *fname, const char *str);
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char *read_file_to_str(const char *filename);
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int parse_line_from_file(char *line, int maxlen, FILE *f, char **key_out, char **value_out);
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char *expand_filename(const char *filename);
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int spawn_func(int (*func)(void *), void *data);
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void spawn_exit();
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