cpp/openttd-patchpack/source Changeset - r20984:a4da9302878d

Changeset - r20984:a4da9302878d

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rubidium - 11 years ago 2013-11-23 13:15:07
rubidium@openttd.org

(svn r26058) -Fix: handle the return value of a number of functions better

10 files changed with 51 insertions and 13 deletions:

src/bmp.cpp

src/debug.cpp

src/fileio.cpp

src/ini.cpp

src/newgrf_config.cpp

src/pathfinder/yapf/yapf_node_rail.hpp

src/saveload/oldloader.cpp

src/saveload/saveload.cpp

src/script/squirrel.cpp

src/strgen/strgen.cpp

0 comments (0 inline, 0 general)

src/bmp.cpp

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@@ @@ -25,18 +25,24 @@ void BmpInitializeBuffer(BmpBuffer *buff @@
 static inline void AdvanceBuffer(BmpBuffer *buffer)
+{
 	if (buffer->read < 0) return;
 	buffer->read = (int)fread(buffer->data, 1, BMP_BUFFER_SIZE, buffer->file);
 	buffer->pos  = 0;
+}
 static inline bool EndOfBuffer(BmpBuffer *buffer)
+{
 	if (buffer->read < 0) return false;
 	if (buffer->pos == buffer->read || buffer->pos < 0) AdvanceBuffer(buffer);
 	return buffer->pos == buffer->read;
+}
 static inline byte ReadByte(BmpBuffer *buffer)
+{
 	if (buffer->read < 0) return 0;
 	if (buffer->pos == buffer->read || buffer->pos < 0) AdvanceBuffer(buffer);
 	buffer->real_pos++;
 	return buffer->data[buffer->pos++];
@@ @@ -62,7 +68,9 @@ static inline void SkipBytes(BmpBuffer * @@
 static inline void SetStreamOffset(BmpBuffer *buffer, int offset)
+{
 	fseek(buffer->file, offset, SEEK_SET);
 	if (fseek(buffer->file, offset, SEEK_SET) < 0) {
 		buffer->read = -1;
+	}
 	buffer->pos = -1;
 	buffer->real_pos = offset;
 	AdvanceBuffer(buffer);

src/debug.cpp

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@@ @@ -112,6 +112,8 @@ static void debug_print(const char *dbg, @@
 		char buf2[1024 + 32];
 		snprintf(buf2, lengthof(buf2), "%sdbg: [%s] %s\n", GetLogPrefix(), dbg, buf);
 		/* Sending out an error when this fails would be nice, however... the error
 		 * would have to be send over this failing socket which won't work. */
 		send(_debug_socket, buf2, (int)strlen(buf2), 0);
 		return;
+	}

src/fileio.cpp

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@@ @@ -88,7 +88,9 @@ void FioSeekTo(size_t pos, int mode) @@
 	if (mode == SEEK_CUR) pos += FioGetPos();
 	_fio.buffer = _fio.buffer_end = _fio.buffer_start + FIO_BUFFER_SIZE;
 	_fio.pos = pos;
 	fseek(_fio.cur_fh, _fio.pos, SEEK_SET);
 	if (fseek(_fio.cur_fh, _fio.pos, SEEK_SET) < 0) {
 		DEBUG(misc, 0, "Seeking in %s failed", _fio.filename);
+	}
+}
 #if defined(LIMITED_FDS)
@@ @@ -450,7 +452,11 @@ FILE *FioFOpenFileTar(TarFileListEntry * @@
 	FILE *f = fopen(entry->tar_filename, "rb");
 	if (f == NULL) return f;
 	fseek(f, entry->position, SEEK_SET);
 	if (fseek(f, entry->position, SEEK_SET) < 0) {
 		fclose(f);
 		return NULL;
+	}
 	if (filesize != NULL) *filesize = entry->size;
 	return f;
+}
@@ @@ -533,6 +539,8 @@ FILE *FioFOpenFile(const char *filename, @@
  */
 static void FioCreateDirectory(const char *name)
+{
 	/* Ignore directory creation errors; they'll surface later on, and most
 	 * of the time they are 'directory already exists' errors anyhow. */
 #if defined(WIN32) || defined(WINCE)
 	CreateDirectory(OTTD2FS(name), NULL);
 #elif defined(OS2) && !defined(__INNOTEK_LIBC__)
@@ @@ -897,7 +905,11 @@ bool TarScanner::AddFile(const char *fil @@
 		/* Skip to the next block.. */
 		skip = Align(skip, 512);
 		fseek(f, skip, SEEK_CUR);
 		if (fseek(f, skip, SEEK_CUR) < 0) {
 			DEBUG(misc, 0, "The file '%s' can't be read as a valid tar-file", filename);
 			fclose(f);
 			return false;
+		}
 		pos += skip;
+	}

src/ini.cpp

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@@ @@ -106,7 +106,9 @@ bool IniFile::SaveToDisk(const char *fil @@
 	shfopt.pTo    = tfilename;
 	SHFileOperation(&shfopt);
 #else
 	rename(file_new, filename);
 	if (rename(file_new, filename) < 0) {
 		DEBUG(misc, 0, "Renaming %s to %s failed; configuration not saved", file_new, filename);
+	}
 #endif
 	return true;

src/newgrf_config.cpp

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@@ @@ -362,7 +362,11 @@ static bool CalcGRFMD5Sum(GRFConfig *con @@
 	size_t start = ftell(f);
 	size = min(size, GRFGetSizeOfDataSection(f));
 	fseek(f, start, SEEK_SET);
 	if (fseek(f, start, SEEK_SET) < 0) {
 		FioFCloseFile(f);
 		return false;
+	}
 	/* calculate md5sum */
 	while ((len = fread(buffer, 1, (size > sizeof(buffer)) ? sizeof(buffer) : size, f)) != 0 && size != 0) {

src/pathfinder/yapf/yapf_node_rail.hpp

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@@ @@ -196,7 +196,7 @@ struct CYapfRailNodeT @@
 		while (cur != GetLastTile() || cur_td != GetLastTrackdir()) {
 			if (!((obj.*func)(cur, cur_td))) return false;
 			ft.Follow(cur, cur_td);
+			if (!ft.Follow(cur, cur_td)) break;
 			cur = ft.m_new_tile;
 			assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
 			cur_td = FindFirstTrackdir(ft.m_new_td_bits);

src/saveload/oldloader.cpp

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@@ @@ -250,10 +250,9 @@ static SavegameType DetermineOldSavegame @@
 	/* Can't fseek to 0 as in tar files that is not correct */
 	long pos = ftell(f);
 	if (!CheckOldSavegameType(f, temp, lastof(temp), TTO_HEADER_SIZE)) {
+	if (pos >= 0 && !CheckOldSavegameType(f, temp, lastof(temp), TTO_HEADER_SIZE)) {
 		type = SGT_TTD;
 		fseek(f, pos, SEEK_SET);
 		if (!CheckOldSavegameType(f, temp, lastof(temp), TTD_HEADER_SIZE)) {
 		if (fseek(f, pos, SEEK_SET) < 0 || !CheckOldSavegameType(f, temp, lastof(temp), TTD_HEADER_SIZE)) {
 			type = SGT_INVALID;
+		}
+	}

src/saveload/saveload.cpp

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@@ @@ -1848,7 +1848,9 @@ struct FileReader : LoadFilter { @@
 	/* virtual */ void Reset()
+	{
 		clearerr(this->file);
 		fseek(this->file, this->begin, SEEK_SET);
 		if (fseek(this->file, this->begin, SEEK_SET)) {
 			DEBUG(sl, 1, "Could not reset the file reading");
+		}
+	}
 };

src/script/squirrel.cpp

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@@ @@ -493,7 +493,12 @@ SQRESULT Squirrel::LoadFile(HSQUIRRELVM @@
+				}
 				func = _io_file_lexfeed_UTF8;
 				break;
 			default: func = _io_file_lexfeed_ASCII; fseek(file, -2, SEEK_CUR); break; // ASCII
 			default: // ASCII
 				func = _io_file_lexfeed_ASCII;
 				if (fseek(file, -2, SEEK_CUR) < 0) {
 					return sq_throwerror(vm, _SC("cannot read the file"));
+				}
 				break;
+		}
 		if (SQ_SUCCEEDED(sq_compile(vm, func, &f, OTTD2SQ(filename), printerror))) {

src/strgen/strgen.cpp

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@@ @@ -353,7 +353,9 @@ struct LanguageFileWriter : LanguageWrit @@
 	void Finalise()
+	{
 		fputc(0, this->fh);
 		if (fputc(0, this->fh) == EOF) {
 			error("Could not write to %s", this->filename);
+		}
 		this->FileWriter::Finalise();
+	}
@@ @@ -368,6 +370,8 @@ struct LanguageFileWriter : LanguageWrit @@
 /** Multi-OS mkdirectory function */
 static inline void ottd_mkdir(const char *directory)
+{
 	/* Ignore directory creation errors; they'll surface later on, and most
 	 * of the time they are 'directory already exists' errors anyhow. */
 #if defined(WIN32) || defined(__WATCOMC__)
 		mkdir(directory);
 #else

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