Use ast_strlen_zero in file.c

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@2911 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/file.c b/file.c
index 249dd4e..ad80d52 100755 (executable)
--- a/file.c
+++ b/file.c
@@ -19,6 +19,7 @@
 #include <asterisk/sched.h>
 #include <asterisk/options.h>
 #include <asterisk/translate.h>
+#include <asterisk/utils.h>
 #include <errno.h>
 #include <unistd.h>
 #include <stdlib.h>
@@ -444,7 +445,7 @@ struct ast_filestream *ast_openstream(struct ast_channel *chan, char *filename,
        /* do this first, otherwise we detect the wrong writeformat */
        if (chan->generator)
                ast_deactivate_generator(chan);
-       if (preflang && strlen(preflang)) {
+       if (preflang && !ast_strlen_zero(preflang)) {
                strncpy(filename3, filename, sizeof(filename3) - 1);
                endpart = strrchr(filename3, '/');
                if (endpart) {
@@ -493,7 +494,7 @@ struct ast_filestream *ast_openvstream(struct ast_channel *chan, char *filename,
        char lang2[MAX_LANGUAGE];
        /* XXX H.263 only XXX */
        char *fmt = "h263";
-       if (preflang && strlen(preflang)) {
+       if (preflang && !ast_strlen_zero(preflang)) {
                snprintf(filename2, sizeof(filename2), "%s/%s", preflang, filename);
                fmts = ast_fileexists(filename2, fmt, NULL);
                if (fmts < 1) {
@@ -678,7 +679,7 @@ int ast_fileexists(char *filename, char *fmt, char *preflang)
        char *c;
        char lang2[MAX_LANGUAGE];
        int res = -1;
-       if (preflang && strlen(preflang)) {
+       if (preflang && !ast_strlen_zero(preflang)) {
                /* Insert the language between the last two parts of the path */
                strncpy(tmp, filename, sizeof(tmp) - 1);
                c = strrchr(tmp, '/');