* function calls exit() if insufficient memory is available, while vasprintf()
* returns -1 in this case.
*
- * \return Number of bytes written, not including the terminating '\0'.
+ * \return Number of bytes written, not including the terminating \p NULL
+ * character.
*
* \sa printf(3), vsnprintf(3), va_start(3), vasprintf(3), \ref xasprintf().
*/
return ret;
}
+/**
+ * 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.
*