[Asterisk-code-review] formats: Restore previous fread() behavior (asterisk[14])

Joshua Colp asteriskteam at digium.com
Wed Sep 6 09:10:55 CDT 2017


Joshua Colp has submitted this change and it was merged. ( https://gerrit.asterisk.org/6404 )

Change subject: formats: Restore previous fread() behavior
......................................................................

formats: Restore previous fread() behavior

Some formats are able to handle short reads while others are not, so
restore the previous behavior for the format modules so that we don't
have spurious errors when playing back files.

ASTERISK-27232 #close
Reported by: Jens T.

Change-Id: Iab7f52b25a394f277566c8a2a4b15a692280a300
---
M formats/format_g719.c
M formats/format_g723.c
M formats/format_g726.c
M formats/format_g729.c
M formats/format_gsm.c
M formats/format_h263.c
M formats/format_h264.c
M formats/format_ilbc.c
M formats/format_pcm.c
M formats/format_siren14.c
M formats/format_siren7.c
M formats/format_sln.c
M formats/format_vox.c
M formats/format_wav.c
M formats/format_wav_gsm.c
15 files changed, 87 insertions(+), 161 deletions(-)

Approvals:
  Joshua Colp: Looks good to me, but someone else must approve; Approved for Submit
  George Joseph: Looks good to me, approved



diff --git a/formats/format_g719.c b/formats/format_g719.c
index bc374ee..a8e7b12 100644
--- a/formats/format_g719.c
+++ b/formats/format_g719.c
@@ -42,20 +42,15 @@
 
 static struct ast_frame *g719read(struct ast_filestream *s, int *whennext)
 {
-	int res;
-	/* Send a frame from the file to the appropriate channel */
+	size_t res;
 
+	/* Send a frame from the file to the appropriate channel */
 	AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, BUF_SIZE);
 	if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) != s->fr.datalen) {
-		if (feof(s->f)) {
-			if (res) {
-				ast_debug(3, "Incomplete frame data at end of %s file "
-						  "(expected %d bytes, read %d)\n",
-						  ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res);
-			}
-		} else {
-			ast_log(LOG_ERROR, "Error while reading %s file: %s\n",
-					ast_format_get_name(s->fr.subclass.format), strerror(errno));
+		if (res) {
+			ast_log(LOG_WARNING, "Short read of %s data (expected %d bytes, read %zu): %s\n",
+					ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res,
+					strerror(errno));
 		}
 		return NULL;
 	}
diff --git a/formats/format_g723.c b/formats/format_g723.c
index 22e3992..023e38b 100644
--- a/formats/format_g723.c
+++ b/formats/format_g723.c
@@ -42,7 +42,7 @@
 static struct ast_frame *g723_read(struct ast_filestream *s, int *whennext)
 {
 	unsigned short size;
-	int res;
+	size_t res;
 	int delay;
 	/* Read the delay for the next packet, and schedule again if necessary */
 	/* XXX is this ignored ? */
@@ -67,15 +67,10 @@
 	/* Read the data into the buffer */
 	AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, size);
 	if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) != s->fr.datalen) {
-		if (feof(s->f)) {
-			if (res) {
-				ast_debug(3, "Incomplete frame data at end of %s file "
-						  "(expected %d bytes, read %d)\n",
-						  ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res);
-			}
-		} else {
-			ast_log(LOG_ERROR, "Error while reading %s file: %s\n",
-					ast_format_get_name(s->fr.subclass.format), strerror(errno));
+		if (res) {
+			ast_log(LOG_WARNING, "Short read of %s data (expected %d bytes, read %zu): %s\n",
+					ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res,
+					strerror(errno));
 		}
 		return NULL;
 	}
diff --git a/formats/format_g726.c b/formats/format_g726.c
index 4d5a91a..45f0ad9 100644
--- a/formats/format_g726.c
+++ b/formats/format_g726.c
@@ -119,22 +119,17 @@
 
 static struct ast_frame *g726_read(struct ast_filestream *s, int *whennext)
 {
-	int res;
+	size_t res;
 	struct g726_desc *fs = (struct g726_desc *)s->_private;
 
 	/* Send a frame from the file to the appropriate channel */
 	AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, frame_size[fs->rate]);
 	s->fr.samples = 8 * FRAME_TIME;
 	if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) != s->fr.datalen) {
-		if (feof(s->f)) {
-			if (res) {
-				ast_debug(3, "Incomplete frame data at end of %s file "
-						  "(expected %d bytes, read %d)\n",
-						  ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res);
-			}
-		} else {
-			ast_log(LOG_ERROR, "Error while reading %s file: %s\n",
-					ast_format_get_name(s->fr.subclass.format), strerror(errno));
+		if (res) {
+			ast_log(LOG_WARNING, "Short read of %s data (expected %d bytes, read %zu): %s\n",
+					ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res,
+					strerror(errno));
 		}
 		return NULL;
 	}
diff --git a/formats/format_g729.c b/formats/format_g729.c
index 48fee3a..7d6d1cf 100644
--- a/formats/format_g729.c
+++ b/formats/format_g729.c
@@ -48,20 +48,16 @@
 
 static struct ast_frame *g729_read(struct ast_filestream *s, int *whennext)
 {
-	int res;
+	size_t res;
+
 	/* Send a frame from the file to the appropriate channel */
 	s->fr.samples = G729A_SAMPLES;
 	AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, BUF_SIZE);
 	if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) != s->fr.datalen) {
-		if (feof(s->f)) {
-			if (res) {
-				ast_debug(3, "Incomplete frame data at end of %s file "
-						  "(expected %d bytes, read %d)\n",
-						  ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res);
-			}
-		} else {
-			ast_log(LOG_ERROR, "Error while reading %s file: %s\n",
-					ast_format_get_name(s->fr.subclass.format), strerror(errno));
+		if (res && res != 10) /* XXX what for ? */ {
+			ast_log(LOG_WARNING, "Short read of %s data (expected %d bytes, read %zu): %s\n",
+					ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res,
+					strerror(errno));
 		}
 		return NULL;
 	}
diff --git a/formats/format_gsm.c b/formats/format_gsm.c
index 7e7c54d..30b12f1 100644
--- a/formats/format_gsm.c
+++ b/formats/format_gsm.c
@@ -55,19 +55,14 @@
 
 static struct ast_frame *gsm_read(struct ast_filestream *s, int *whennext)
 {
-	int res;
+	size_t res;
 
 	AST_FRAME_SET_BUFFER(&(s->fr), s->buf, AST_FRIENDLY_OFFSET, GSM_FRAME_SIZE);
 	if ((res = fread(s->fr.data.ptr, 1, GSM_FRAME_SIZE, s->f)) != GSM_FRAME_SIZE) {
-		if (feof(s->f)) {
-			if (res) {
-				ast_debug(3, "Incomplete frame data at end of %s file "
-						  "(expected %d bytes, read %d)\n",
-						  ast_format_get_name(s->fr.subclass.format), GSM_FRAME_SIZE, res);
-			}
-		} else {
-			ast_log(LOG_ERROR, "Error while reading %s file: %s\n",
-					ast_format_get_name(s->fr.subclass.format), strerror(errno));
+		if (res) {
+			ast_log(LOG_WARNING, "Short read of %s data (expected %d bytes, read %zu): %s\n",
+					ast_format_get_name(s->fr.subclass.format), GSM_FRAME_SIZE, res,
+					strerror(errno));
 		}
 		return NULL;
 	}
diff --git a/formats/format_h263.c b/formats/format_h263.c
index a3ca933..e56cbe9 100644
--- a/formats/format_h263.c
+++ b/formats/format_h263.c
@@ -69,7 +69,7 @@
 
 static struct ast_frame *h263_read(struct ast_filestream *s, int *whennext)
 {
-	int res;
+	size_t res;
 	uint32_t mark;
 	unsigned short len;
 	unsigned int ts;
@@ -87,15 +87,10 @@
 	}
 	AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, len);
 	if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) != s->fr.datalen) {
-		if (feof(s->f)) {
-			if (res) {
-				ast_debug(3, "Incomplete frame data at end of %s file "
-						  "(expected %d bytes, read %d)\n",
-						  ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res);
-			}
-		} else {
-			ast_log(LOG_ERROR, "Error while reading %s file: %s\n",
-					ast_format_get_name(s->fr.subclass.format), strerror(errno));
+		if (res) {
+			ast_log(LOG_WARNING, "Short read of %s data (expected %d bytes, read %zu): %s\n",
+					ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res,
+					strerror(errno));
 		}
 		return NULL;
 	}
diff --git a/formats/format_h264.c b/formats/format_h264.c
index b89e8ec..4747792 100644
--- a/formats/format_h264.c
+++ b/formats/format_h264.c
@@ -61,7 +61,7 @@
 
 static struct ast_frame *h264_read(struct ast_filestream *s, int *whennext)
 {
-	int res;
+	size_t res;
 	int mark = 0;
 	unsigned short len;
 	unsigned int ts;
@@ -79,15 +79,10 @@
 	}
 	AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, len);
 	if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) != s->fr.datalen) {
-		if (feof(s->f)) {
-			if (res) {
-				ast_debug(3, "Incomplete frame data at end of %s file "
-						  "(expected %d bytes, read %d)\n",
-						  ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res);
-			}
-		} else {
-			ast_log(LOG_ERROR, "Error while reading %s file: %s\n",
-					ast_format_get_name(s->fr.subclass.format), strerror(errno));
+		if (res) {
+			ast_log(LOG_WARNING, "Short read of %s data (expected %d bytes, read %zu): %s\n",
+					ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res,
+					strerror(errno));
 		}
 		return NULL;
 	}
diff --git a/formats/format_ilbc.c b/formats/format_ilbc.c
index 3103611..42a28d8 100644
--- a/formats/format_ilbc.c
+++ b/formats/format_ilbc.c
@@ -47,19 +47,15 @@
 
 static struct ast_frame *ilbc_read(struct ast_filestream *s, int *whennext)
 {
-	int res;
+	size_t res;
+
 	/* Send a frame from the file to the appropriate channel */
 	AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, ILBC_BUF_SIZE);
 	if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) != s->fr.datalen) {
-		if (feof(s->f)) {
-			if (res) {
-				ast_debug(3, "Incomplete frame data at end of %s file "
-						  "(expected %d bytes, read %d)\n",
-						  ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res);
-			}
-		} else {
-			ast_log(LOG_ERROR, "Error while reading %s file: %s\n",
-					ast_format_get_name(s->fr.subclass.format), strerror(errno));
+		if (res) {
+			ast_log(LOG_WARNING, "Short read of %s data (expected %d bytes, read %zu): %s\n",
+					ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res,
+					strerror(errno));
 		}
 		return NULL;
 	}
diff --git a/formats/format_pcm.c b/formats/format_pcm.c
index 705a035..c12ef6b 100644
--- a/formats/format_pcm.c
+++ b/formats/format_pcm.c
@@ -80,21 +80,15 @@
 
 static struct ast_frame *pcm_read(struct ast_filestream *s, int *whennext)
 {
-	int res;
-	
-	/* Send a frame from the file to the appropriate channel */
+	size_t res;
 
+	/* Send a frame from the file to the appropriate channel */
 	AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, BUF_SIZE);
-	if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) != s->fr.datalen) {
-		if (feof(s->f)) {
-			if (res) {
-				ast_debug(3, "Incomplete frame data at end of %s file "
-						  "(expected %d bytes, read %d)\n",
-						  ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res);
-			}
-		} else {
-			ast_log(LOG_ERROR, "Error while reading %s file: %s\n",
-					ast_format_get_name(s->fr.subclass.format), strerror(errno));
+	if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) < 1) {
+		if (res) {
+			ast_log(LOG_WARNING, "Short read of %s data (expected %d bytes, read %zu): %s\n",
+					ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res,
+					strerror(errno));
 		}
 		return NULL;
 	}
diff --git a/formats/format_siren14.c b/formats/format_siren14.c
index 15cbe4c..62c6cb2 100644
--- a/formats/format_siren14.c
+++ b/formats/format_siren14.c
@@ -42,20 +42,15 @@
 
 static struct ast_frame *siren14read(struct ast_filestream *s, int *whennext)
 {
-	int res;
-	/* Send a frame from the file to the appropriate channel */
+	size_t res;
 
+	/* Send a frame from the file to the appropriate channel */
 	AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, BUF_SIZE);
 	if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) != s->fr.datalen) {
-		if (feof(s->f)) {
-			if (res) {
-				ast_debug(3, "Incomplete frame data at end of %s file "
-						  "(expected %d bytes, read %d)\n",
-						  ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res);
-			}
-		} else {
-			ast_log(LOG_ERROR, "Error while reading %s file: %s\n",
-					ast_format_get_name(s->fr.subclass.format), strerror(errno));
+		if (res) {
+			ast_log(LOG_WARNING, "Short read of %s data (expected %d bytes, read %zu): %s\n",
+					ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res,
+					strerror(errno));
 		}
 		return NULL;
 	}
diff --git a/formats/format_siren7.c b/formats/format_siren7.c
index ff0bca3..3dd4d5e 100644
--- a/formats/format_siren7.c
+++ b/formats/format_siren7.c
@@ -42,20 +42,15 @@
 
 static struct ast_frame *siren7read(struct ast_filestream *s, int *whennext)
 {
-	int res;
-	/* Send a frame from the file to the appropriate channel */
+	size_t res;
 
+	/* Send a frame from the file to the appropriate channel */
 	AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, BUF_SIZE);
 	if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) != s->fr.datalen) {
-		if (feof(s->f)) {
-			if (res) {
-				ast_debug(3, "Incomplete frame data at end of %s file "
-						  "(expected %d bytes, read %d)\n",
-						  ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res);
-			}
-		} else {
-			ast_log(LOG_ERROR, "Error while reading %s file: %s\n",
-					ast_format_get_name(s->fr.subclass.format), strerror(errno));
+		if (res) {
+			ast_log(LOG_WARNING, "Short read of %s data (expected %d bytes, read %zu): %s\n",
+					ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res,
+					strerror(errno));
 		}
 		return NULL;
 	}
diff --git a/formats/format_sln.c b/formats/format_sln.c
index f68becb..e73916e 100644
--- a/formats/format_sln.c
+++ b/formats/format_sln.c
@@ -36,20 +36,15 @@
 
 static struct ast_frame *generic_read(struct ast_filestream *s, int *whennext, unsigned int buf_size)
 {
-	int res;
-	/* Send a frame from the file to the appropriate channel */
+	size_t res;
 
+	/* Send a frame from the file to the appropriate channel */
 	AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, buf_size);
-	if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) != s->fr.datalen) {
-		if (feof(s->f)) {
-			if (res) {
-				ast_debug(3, "Incomplete frame data at end of %s file "
-						  "(expected %d bytes, read %d)\n",
-						  ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res);
-			}
-		} else {
-			ast_log(LOG_ERROR, "Error while reading %s file: %s\n",
-					ast_format_get_name(s->fr.subclass.format), strerror(errno));
+	if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) < 1) {
+		if (res) {
+			ast_log(LOG_WARNING, "Short read of %s data (expected %d bytes, read %zu): %s\n",
+					ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res,
+					strerror(errno));
 		}
 		return NULL;
 	}
diff --git a/formats/format_vox.c b/formats/format_vox.c
index fc84053..0775f85 100644
--- a/formats/format_vox.c
+++ b/formats/format_vox.c
@@ -42,20 +42,15 @@
 
 static struct ast_frame *vox_read(struct ast_filestream *s, int *whennext)
 {
-	int res;
+	size_t res;
 
 	/* Send a frame from the file to the appropriate channel */
 	AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, BUF_SIZE);
-	if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) != s->fr.datalen) {
-		if (feof(s->f)) {
-			if (res) {
-				ast_debug(3, "Incomplete frame data at end of %s file "
-						  "(expected %d bytes, read %d)\n",
-						  ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res);
-			}
-		} else {
-			ast_log(LOG_ERROR, "Error while reading %s file: %s\n",
-					ast_format_get_name(s->fr.subclass.format), strerror(errno));
+	if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) < 1) {
+		if (res) {
+			ast_log(LOG_WARNING, "Short read of %s data (expected %d bytes, read %zu): %s\n",
+					ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res,
+					strerror(errno));
 		}
 		return NULL;
 	}
diff --git a/formats/format_wav.c b/formats/format_wav.c
index 85a22ed..fcdaf39 100644
--- a/formats/format_wav.c
+++ b/formats/format_wav.c
@@ -371,7 +371,7 @@
 
 static struct ast_frame *wav_read(struct ast_filestream *s, int *whennext)
 {
-	int res;
+	size_t res;
 	int samples;	/* actual samples read */
 #if __BYTE_ORDER == __BIG_ENDIAN
 	int x;
@@ -393,16 +393,11 @@
 /* 	ast_debug(1, "here: %d, maxlen: %d, bytes: %d\n", here, s->maxlen, bytes); */
 	AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, bytes);
 
-	if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) != s->fr.datalen) {
-		if (feof(s->f)) {
-			if (res) {
-				ast_debug(3, "Incomplete frame data at end of %s file "
-						  "(expected %d bytes, read %d)\n",
-						  ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res);
-			}
-		} else {
-			ast_log(LOG_ERROR, "Error while reading %s file: %s\n",
-					ast_format_get_name(s->fr.subclass.format), strerror(errno));
+	if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) == 0) {
+		if (res) {
+			ast_log(LOG_WARNING, "Short read of %s data (expected %d bytes, read %zu): %s\n",
+					ast_format_get_name(s->fr.subclass.format), s->fr.datalen, res,
+					strerror(errno));
 		}
 		return NULL;
 	}
diff --git a/formats/format_wav_gsm.c b/formats/format_wav_gsm.c
index e480179..3bdeab9 100644
--- a/formats/format_wav_gsm.c
+++ b/formats/format_wav_gsm.c
@@ -421,18 +421,13 @@
 	} else {
 		/* read and convert */
 		unsigned char msdata[MSGSM_FRAME_SIZE];
-		int res;
-		
+		size_t res;
+
 		if ((res = fread(msdata, 1, MSGSM_FRAME_SIZE, s->f)) != MSGSM_FRAME_SIZE) {
-			if (feof(s->f)) {
-				if (res) {
-					ast_debug(3, "Incomplete frame data at end of %s file "
-							  "(expected %d bytes, read %d)\n",
-							  ast_format_get_name(s->fr.subclass.format), MSGSM_FRAME_SIZE, res);
-				}
-			} else {
-				ast_log(LOG_ERROR, "Error while reading %s file: %s\n",
-						ast_format_get_name(s->fr.subclass.format), strerror(errno));
+			if (res && res != 1) {
+				ast_log(LOG_WARNING, "Short read of %s data (expected %d bytes, read %zu): %s\n",
+						ast_format_get_name(s->fr.subclass.format), MSGSM_FRAME_SIZE, res,
+						strerror(errno));
 			}
 			return NULL;
 		}

-- 
To view, visit https://gerrit.asterisk.org/6404
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Gerrit-Project: asterisk
Gerrit-Branch: 14
Gerrit-MessageType: merged
Gerrit-Change-Id: Iab7f52b25a394f277566c8a2a4b15a692280a300
Gerrit-Change-Number: 6404
Gerrit-PatchSet: 1
Gerrit-Owner: Sean Bright <sean.bright at gmail.com>
Gerrit-Reviewer: George Joseph <gjoseph at digium.com>
Gerrit-Reviewer: Jenkins2
Gerrit-Reviewer: Joshua Colp <jcolp at digium.com>
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