make ast_waitstream_* return value compatible with platforms that use unsigned char by default (bug #4455)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5846 65c4cc65-6c06-0410-ace0-fbb531ad65f3

app.c

@@ -513,7 +513,8 @@ static int global_maxsilence = 0;
 
 int ast_play_and_record(struct ast_channel *chan, const char *playfile, const char *recordfile, int maxtime, const char *fmt, int *duration, int silencethreshold, int maxsilence, const char *path)
 {
-	char d, *fmts;
+	int d;
+	char *fmts;
 	char comment[256];
 	int x, fmtcnt=1, res=-1,outmsg=0;
 	struct ast_frame *f;
@@ -730,7 +731,8 @@ int ast_play_and_record(struct ast_channel *chan, const char *playfile, const ch
 
 int ast_play_and_prepend(struct ast_channel *chan, char *playfile, char *recordfile, int maxtime, char *fmt, int *duration, int beep, int silencethreshold, int maxsilence)
 {
-	char d = 0, *fmts;
+	int d = 0;
+	char *fmts;
 	char comment[256];
 	int x, fmtcnt=1, res=-1,outmsg=0;
 	struct ast_frame *f;

channel.c

@@ -1235,11 +1235,11 @@ int ast_waitfor(struct ast_channel *c, int ms)
 	return ms;
 }
 
-char ast_waitfordigit(struct ast_channel *c, int ms)
+int ast_waitfordigit(struct ast_channel *c, int ms)
 {
 	/* XXX Should I be merged with waitfordigit_full XXX */
 	struct ast_frame *f;
-	char result = 0;
+	int result = 0;
 	/* Stop if we're a zombie or need a soft hangup */
 	if (ast_test_flag(c, AST_FLAG_ZOMBIE) || ast_check_hangup(c)) 
 		return -1;
@@ -1279,7 +1279,7 @@ int ast_settimeout(struct ast_channel *c, int samples, int (*func)(void *data),
 #endif	
 	return res;
 }
-char ast_waitfordigit_full(struct ast_channel *c, int ms, int audiofd, int cmdfd)
+int ast_waitfordigit_full(struct ast_channel *c, int ms, int audiofd, int cmdfd)
 {
 	struct ast_frame *f;
 	struct ast_channel *rchan;
@@ -2188,7 +2188,7 @@ int ast_readstring(struct ast_channel *c, char *s, int len, int timeout, int fti
 {
 	int pos=0;
 	int to = ftimeout;
-	char d;
+	int d;
 	/* XXX Merge with full version? XXX */
 	/* Stop if we're a zombie or need a soft hangup */
 	if (ast_test_flag(c, AST_FLAG_ZOMBIE) || ast_check_hangup(c)) 
@@ -2227,7 +2227,7 @@ int ast_readstring_full(struct ast_channel *c, char *s, int len, int timeout, in
 {
 	int pos=0;
 	int to = ftimeout;
-	char d;
+	int d;
 	/* Stop if we're a zombie or need a soft hangup */
 	if (ast_test_flag(c, AST_FLAG_ZOMBIE) || ast_check_hangup(c)) 
 		return -1;

file.c

@@ -934,7 +934,7 @@ struct ast_filestream *ast_writefile(const char *filename, const char *type, con
 	return fs;
 }
 
-char ast_waitstream(struct ast_channel *c, const char *breakon)
+int ast_waitstream(struct ast_channel *c, const char *breakon)
 {
 	/* XXX Maybe I should just front-end ast_waitstream_full ? XXX */
 	int res;
@@ -990,7 +990,7 @@ char ast_waitstream(struct ast_channel *c, const char *breakon)
 	return (c->_softhangup ? -1 : 0);
 }
 
-char ast_waitstream_fr(struct ast_channel *c, const char *breakon, const char *forward, const char *rewind, int ms)
+int ast_waitstream_fr(struct ast_channel *c, const char *breakon, const char *forward, const char *rewind, int ms)
 {
 	int res;
 	struct ast_frame *fr;
@@ -1059,7 +1059,7 @@ char ast_waitstream_fr(struct ast_channel *c, const char *breakon, const char *f
 	return (c->_softhangup ? -1 : 0);
 }
 
-char ast_waitstream_full(struct ast_channel *c, const char *breakon, int audiofd, int cmdfd)
+int ast_waitstream_full(struct ast_channel *c, const char *breakon, int audiofd, int cmdfd)
 {
 	int res;
 	int ms;

include/asterisk/channel.h

@@ -754,11 +754,11 @@ struct ast_channel *ast_get_channel_by_name_locked(char *channame);
  * \param c channel to wait for a digit on
  * \param ms how many milliseconds to wait
  * Wait for a digit.  Returns <0 on error, 0 on no entry, and the digit on success. */
-char ast_waitfordigit(struct ast_channel *c, int ms);
+int ast_waitfordigit(struct ast_channel *c, int ms);
 
 /* Same as above with audio fd for outputing read audio and ctrlfd to monitor for
    reading. Returns 1 if ctrlfd becomes available */
-char ast_waitfordigit_full(struct ast_channel *c, int ms, int audiofd, int ctrlfd);
+int ast_waitfordigit_full(struct ast_channel *c, int ms, int audiofd, int ctrlfd);
 
 /*! Reads multiple digits */
 /*! 

include/asterisk/file.h

@@ -122,7 +122,7 @@ int ast_filecopy(const char *oldname, const char *newname, const char *fmt);
  * Wait for a stream to stop or for any one of a given digit to arrive,  Returns 0 
  * if the stream finishes, the character if it was interrupted, and -1 on error 
  */
-char ast_waitstream(struct ast_channel *c, const char *breakon);
+int ast_waitstream(struct ast_channel *c, const char *breakon);
 
 /*! Same as waitstream but allows stream to be forwarded or rewound */
 /*!
@@ -135,11 +135,11 @@ char ast_waitstream(struct ast_channel *c, const char *breakon);
  * Wait for a stream to stop or for any one of a given digit to arrive,  Returns 0 
  * if the stream finishes, the character if it was interrupted, and -1 on error 
  */
-char ast_waitstream_fr(struct ast_channel *c, const char *breakon, const char *forward, const char *rewind, int ms);
+int ast_waitstream_fr(struct ast_channel *c, const char *breakon, const char *forward, const char *rewind, int ms);
 
 /* Same as waitstream, but with audio output to fd and monitored fd checking.  Returns
    1 if monfd is ready for reading */
-char ast_waitstream_full(struct ast_channel *c, const char *breakon, int audiofd, int monfd);
+int ast_waitstream_full(struct ast_channel *c, const char *breakon, int audiofd, int monfd);
 
 /*! Starts reading from a file */
 /*!

pbx.c

@@ -2238,7 +2238,7 @@ int ast_exec_extension(struct ast_channel *c, const char *context, const char *e
 static int __ast_pbx_run(struct ast_channel *c)
 {
 	int firstpass = 1;
-	char digit;
+	int digit;
 	char exten[256];
 	int pos;
 	int waittime;