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-rw-r--r--src/console.cpp8
-rw-r--r--src/fileio.cpp18
-rw-r--r--src/network/network_client.cpp5
-rw-r--r--src/saveload.cpp2
4 files changed, 19 insertions, 14 deletions
diff --git a/src/console.cpp b/src/console.cpp
index 00e471e12..c1bb05676 100644
--- a/src/console.cpp
+++ b/src/console.cpp
@@ -271,8 +271,12 @@ static void IConsoleWriteToLogFile(const char *string)
{
if (_iconsole_output_file != NULL) {
/* if there is an console output file ... also print it there */
- fwrite(string, strlen(string), 1, _iconsole_output_file);
- fwrite("\n", 1, 1, _iconsole_output_file);
+ if (fwrite(string, strlen(string), 1, _iconsole_output_file) != 1 ||
+ fwrite("\n", 1, 1, _iconsole_output_file) != 1) {
+ fclose(_iconsole_output_file);
+ _iconsole_output_file = NULL;
+ IConsolePrintF(_icolour_def, "cannot write to log file");
+ }
}
}
diff --git a/src/fileio.cpp b/src/fileio.cpp
index c6eb90ca9..184d773ec 100644
--- a/src/fileio.cpp
+++ b/src/fileio.cpp
@@ -91,8 +91,8 @@ void FioSeekToFile(uint8 slot, uint32 pos)
byte FioReadByte()
{
if (_fio.buffer == _fio.buffer_end) {
- _fio.pos += FIO_BUFFER_SIZE;
- fread(_fio.buffer = _fio.buffer_start, 1, FIO_BUFFER_SIZE, _fio.cur_fh);
+ _fio.buffer = _fio.buffer_start;
+ _fio.pos += fread(_fio.buffer, 1, FIO_BUFFER_SIZE, _fio.cur_fh);
}
return *_fio.buffer++;
}
@@ -124,8 +124,7 @@ uint32 FioReadDword()
void FioReadBlock(void *ptr, uint size)
{
FioSeekTo(FioGetPos(), SEEK_SET);
- _fio.pos += size;
- fread(ptr, 1, size, _fio.cur_fh);
+ _fio.pos += fread(ptr, 1, size, _fio.cur_fh);
}
static inline void FioCloseFile(int slot)
@@ -430,7 +429,7 @@ char *BuildWithFullPath(const char *dir)
/* Add absolute path */
if (s == NULL || dest != s) {
- getcwd(dest, MAX_PATH);
+ if (getcwd(dest, MAX_PATH) == NULL) *dest = '\0';
AppendPathSeparator(dest, MAX_PATH);
ttd_strlcat(dest, dir, MAX_PATH);
}
@@ -484,8 +483,7 @@ static bool TarListAddFile(const char *filename)
memset(&empty[0], 0, sizeof(empty));
while (!feof(f)) {
- fread(&th, 1, 512, f);
- pos += 512;
+ pos += fread(&th, 1, 512, f);
/* Check if we have the new tar-format (ustar) or the old one (a lot of zeros after 'link' field) */
if (strncmp(th.magic, "ustar", 5) != 0 && memcmp(&th.magic, &empty[0], 512 - offsetof(TarHeader, magic)) != 0) {
@@ -629,7 +627,7 @@ void ChangeWorkingDirectory(const char *exe)
char *s = strrchr(exe, PATHSEPCHAR);
if (s != NULL) {
*s = '\0';
- chdir(exe);
+ if (chdir(exe) != 0) DEBUG(misc, 0, "Directory with the binary does not exist?");
*s = PATHSEPCHAR;
}
#ifdef WITH_COCOA
@@ -671,14 +669,14 @@ void DetermineBasePaths(const char *exe)
#if defined(__MORPHOS__) || defined(__AMIGA__)
_searchpaths[SP_WORKING_DIR] = NULL;
#else
- getcwd(tmp, MAX_PATH);
+ if (getcwd(tmp, MAX_PATH) == NULL) *tmp = '\0';
AppendPathSeparator(tmp, MAX_PATH);
_searchpaths[SP_WORKING_DIR] = strdup(tmp);
#endif
/* Change the working directory to that one of the executable */
ChangeWorkingDirectory((char*)exe);
- getcwd(tmp, MAX_PATH);
+ if (getcwd(tmp, MAX_PATH) == NULL) *tmp = '\0';
AppendPathSeparator(tmp, MAX_PATH);
_searchpaths[SP_BINARY_DIR] = strdup(tmp);
diff --git a/src/network/network_client.cpp b/src/network/network_client.cpp
index 3516baa9f..7a1492b11 100644
--- a/src/network/network_client.cpp
+++ b/src/network/network_client.cpp
@@ -595,7 +595,10 @@ DEF_CLIENT_RECEIVE_COMMAND(PACKET_SERVER_MAP)
if (maptype == MAP_PACKET_NORMAL) {
// We are still receiving data, put it to the file
- fwrite(p->buffer + p->pos, 1, p->size - p->pos, file_pointer);
+ if (fwrite(p->buffer + p->pos, 1, p->size - p->pos, file_pointer) != p->size - p->pos) {
+ _switch_mode_errorstr = STR_NETWORK_ERR_SAVEGAMEERROR;
+ return NETWORK_RECV_STATUS_SAVEGAME;
+ }
_network_join_kbytes = ftell(file_pointer) / 1024;
InvalidateWindow(WC_NETWORK_STATUS_WINDOW, 0);
diff --git a/src/saveload.cpp b/src/saveload.cpp
index 8a4eba1a7..f6edcf578 100644
--- a/src/saveload.cpp
+++ b/src/saveload.cpp
@@ -1114,7 +1114,7 @@ static uint ReadNoComp()
static void WriteNoComp(uint size)
{
- fwrite(_sl.buf, 1, size, _sl.fh);
+ if (fwrite(_sl.buf, 1, size, _sl.fh) != size) SlError(STR_GAME_SAVELOAD_ERROR_FILE_NOT_WRITEABLE);
}
static bool InitNoComp()