Merge topic branch t/misc into pu

[paraslash.git] / string.c

diff --git a/string.c b/string.c
index 2c6d35d60e7c69900826f8ddbbd7b1e16fb8cbd4..9fffad13f3586796c2f66d66b884375f71c6570e 100644 (file)
--- a/string.c
+++ b/string.c
@@ -308,15 +308,28 @@ __must_check __malloc char *para_logname(void)
 }
 
 /**
- * Get the home directory of the current user.
+ * Return the expansion of $HOME/.paraslash.
  *
- * \return A dynamically allocated string that must be freed by the caller. If
- * the home directory could not be found, this function returns "/tmp".
+ * \return A pointer to memory that must not be freed by the caller. If the
+ * environment variable HOME is unset or empty, the function prints an error
+ * message and aborts.
+ *
+ * \sa getenv(3), getuid(2).
  */
-__must_check __malloc char *para_homedir(void)
+const char *get_confdir(void)
 {
-       struct passwd *pw = getpwuid(getuid());
-       return para_strdup(pw? pw->pw_dir : "/tmp");
+       static const char *dot_para;
+       const char *home;
+
+       if (dot_para)
+               return dot_para;
+       home = getenv("HOME");
+       if (!home || !*home) {
+               PARA_EMERG_LOG("fatal: HOME is unset or empty");
+               exit(EXIT_FAILURE);
+       }
+       dot_para = make_message("%s/.paraslash", home);
+       return dot_para;
 }
 
 /**
@@ -739,13 +752,11 @@ void free_argv(char **argv)
 static int create_argv_offset(int offset, const char *buf, const char *delim,
                char ***result)
 {
-       char *word, **argv = arr_alloc(offset + 1, sizeof(char *));
+       char *word, **argv = arr_zalloc(offset + 1, sizeof(char *));
        const char *p;
        int i, ret;
 
-       for (i = 0; i < offset; i++)
-               argv[i] = NULL;
-       for (p = buf; p && *p; p += ret, i++) {
+       for (p = buf, i = offset; p && *p; p += ret, i++) {
                ret = get_next_word(p, delim, &word);
                if (ret < 0)
                        goto err;
@@ -806,27 +817,6 @@ int create_shifted_argv(const char *buf, const char *delim, char ***result)
        return create_argv_offset(1, buf, delim, result);
 }
 
-/**
- * Find out if the given string is contained in the arg vector.
- *
- * \param arg The string to look for.
- * \param argv The array to search.
- *
- * \return The first index whose value equals \a arg, or \p -E_ARG_NOT_FOUND if
- * arg was not found in \a argv.
- */
-int find_arg(const char *arg, char **argv)
-{
-       int i;
-
-       if (!argv)
-               return -E_ARG_NOT_FOUND;
-       for (i = 0; argv[i]; i++)
-               if (strcmp(arg, argv[i]) == 0)
-                       return i;
-       return -E_ARG_NOT_FOUND;
-}
-
 /**
  * Compile a regular expression.
  *