From dea7d441f2355a0cd7f263cdc91f231d2895b12c Mon Sep 17 00:00:00 2001
From: "Reece H. Dunn" <msclrhd@gmail.com>
Date: Thu, 7 Jan 2016 20:46:31 +0000
Subject: [PATCH] Avoid passing 0 to realloc in
 ReadPhondataManifest(compiledata.c). [clang scan-build]

---
 src/include/espeak-ng/espeak_ng.h | 1 +
 src/libespeak-ng/compiledata.c    | 5 +++++
 src/libespeak-ng/error.c          | 3 +++
 3 files changed, 9 insertions(+)

diff --git a/src/include/espeak-ng/espeak_ng.h b/src/include/espeak-ng/espeak_ng.h
index 149001ac..10e66f32 100644
--- a/src/include/espeak-ng/espeak_ng.h
+++ b/src/include/espeak-ng/espeak_ng.h
@@ -50,6 +50,7 @@ typedef enum {
 	ENS_NOT_SUPPORTED            = 0x10000AFF,
 	ENS_UNSUPPORTED_PHON_FORMAT  = 0x10000BFF,
 	ENS_NO_SPECT_FRAMES          = 0x10000CFF,
+	ENS_EMPTY_PHONEME_MANIFEST   = 0x10000DFF,
 } espeak_ng_STATUS;
 
 typedef enum {
diff --git a/src/libespeak-ng/compiledata.c b/src/libespeak-ng/compiledata.c
index e8edb24b..1de8514e 100644
--- a/src/libespeak-ng/compiledata.c
+++ b/src/libespeak-ng/compiledata.c
@@ -409,6 +409,11 @@ static espeak_ng_STATUS ReadPhondataManifest(espeak_ng_ERROR_CONTEXT *context)
 			free(manifest[ix].name);
 	}
 
+	if (n_lines == 0) {
+		fclose(f);
+		return ENS_EMPTY_PHONEME_MANIFEST;
+	}
+
 	if ((manifest = (NAMETAB *)realloc(manifest, n_lines * sizeof(NAMETAB))) == NULL) {
 		fclose(f);
 		return ENOMEM;
diff --git a/src/libespeak-ng/error.c b/src/libespeak-ng/error.c
index 467cbac0..8a0dfae1 100644
--- a/src/libespeak-ng/error.c
+++ b/src/libespeak-ng/error.c
@@ -116,6 +116,9 @@ ESPEAK_NG_API void espeak_ng_GetStatusCodeMessage(espeak_ng_STATUS status, char
 	case ENS_NO_SPECT_FRAMES:
 		strncpy0(buffer, "The spectral file does not contain any frame data", length);
 		break;
+	case ENS_EMPTY_PHONEME_MANIFEST:
+		strncpy0(buffer, "The phoneme manifest file does not contain any phonemes", length);
+		break;
 	default:
 		if ((status & ENS_GROUP_MASK) == ENS_GROUP_ERRNO)
 			strerror_r(status, buffer, length);