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Fix some coverity issues

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This commit is contained in:
heckflosse
2017-06-20 00:00:19 +02:00
parent eeb1135670
commit 240d81d49f
1 changed files with 22 additions and 21 deletions
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43
rtexif/rtexif.cc
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@@ -1085,7 +1085,7 @@ defsubdirs:
// read value
value = new unsigned char [valuesize];
fread (value, 1, valuesize, f);
int pos = ftell (f);
// count the number of valid subdirs
int sdcount = count;
@@ -1102,7 +1102,6 @@ defsubdirs:
int newpos = base + toInt (j * 4, LONG);
fseek (f, newpos, SEEK_SET);
directory[i] = new TagDirectory (parent, f, base, attrib->subdirAttribs, order);
fseek (f, pos, SEEK_SET);
}
// set the terminating NULL
@@ -2741,7 +2740,7 @@ TagDirectory* ExifManager::parse (FILE* f, int base, bool skipIgnored)
Tag* tmodel4 = root->getTag ("LocalizedCameraModel");
if (tmodel4) {
const char *model4 = (tmodel4) ? (const char *)tmodel4->getValue() : "";
const char *model4 = (const char *)tmodel4->getValue();
if (strstr (model4, "Hasselblad ") == model4) {
model4 = model4 + 11;
@@ -2786,27 +2785,29 @@ TagDirectory* ExifManager::parse (FILE* f, int base, bool skipIgnored)
TagDirectory* ExifManager::parseJPEG (FILE* f, int offset)
{
fseek (f, offset, SEEK_SET);
unsigned char markerl = 0xff;
unsigned char c;
fread (&c, 1, 1, f);
const char exifid[] = "Exif\0\0";
char idbuff[8];
int tiffbase = -1;
if(!fseek (f, offset, SEEK_SET)) {
unsigned char c;
if(fread (&c, 1, 1, f) == 1) {
constexpr unsigned char markerl = 0xff;
const char exifid[] = "Exif\0\0";
char idbuff[8];
int tiffbase = -1;
while (fread (&c, 1, 1, f)) {
if (c != markerl) {
continue;
}
while (fread (&c, 1, 1, f)) {
if (c != markerl) {
continue;
}
if (fread (&c, 1, 1, f) && c == 0xe1) { // APP1 marker found
if (fread (idbuff, 1, 8, f) < 8) {
return nullptr;
}
if (fread (&c, 1, 1, f) && c == 0xe1) { // APP1 marker found
if (fread (idbuff, 1, 8, f) < 8) {
return nullptr;
}
if (!memcmp (idbuff + 2, exifid, 6)) { // Exif info found
tiffbase = ftell (f);
return parse (f, tiffbase);
if (!memcmp (idbuff + 2, exifid, 6)) { // Exif info found
tiffbase = ftell (f);
return parse (f, tiffbase);
}
}
}
}
}