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authoralwin <alwin>2004-04-21 22:57:53 (UTC)
committer alwin <alwin>2004-04-21 22:57:53 (UTC)
commit15abdc3ac4e7406d15a8a59f43b3ae669099074a (patch) (unidiff)
tree2ed419f8edf698561359f46dfbf177767f974452
parent2a04bf465c332f5e879470f7436852e2d9686083 (diff)
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fixed a possible crasher
Diffstat (more/less context) (ignore whitespace changes)
-rw-r--r--noncore/graphics/opie-eye/slave/png_slave.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/noncore/graphics/opie-eye/slave/png_slave.cpp b/noncore/graphics/opie-eye/slave/png_slave.cpp
index 86e1cdc..21555b4 100644
--- a/noncore/graphics/opie-eye/slave/png_slave.cpp
+++ b/noncore/graphics/opie-eye/slave/png_slave.cpp
@@ -53,33 +53,34 @@ static const char* colors[] = {
53 // and compressions 53 // and compressions
54static const char* compressions[] = 54static const char* compressions[] =
55{ 55{
56 QT_TR_NOOP("Deflate") 56 QT_TR_NOOP("Deflate")
57}; 57};
58 58
59 // interlaced modes 59 // interlaced modes
60static const char* interlaceModes[] = { 60static const char* interlaceModes[] = {
61 QT_TR_NOOP("None"), 61 QT_TR_NOOP("None"),
62 QT_TR_NOOP("Adam7") 62 QT_TR_NOOP("Adam7")
63}; 63};
64 64
65 65
66static void read_comment( const QString& inf, 66static void read_comment( const QString& inf,
67 bool readComments, QString& str ) { 67 bool readComments, QString& str ) {
68 QFile f(inf); 68 QFile f(inf);
69 f.open(IO_ReadOnly); 69 if (!f.exists()) return;
70 if (!f.open(IO_ReadOnly)) return;
70 71
71 if (f.size() < 26) return; 72 if (f.size() < 26) return;
72 // the technical group will be read from the first 26 bytes. If the file 73 // the technical group will be read from the first 26 bytes. If the file
73 // is smaller, we can't even read this. 74 // is smaller, we can't even read this.
74 75
75 uchar *data = new uchar[f.size()+1]; 76 uchar *data = new uchar[f.size()+1];
76 f.readBlock(reinterpret_cast<char*>(data), f.size()); 77 f.readBlock(reinterpret_cast<char*>(data), f.size());
77 data[f.size()]='\n'; 78 data[f.size()]='\n';
78 79
79 // find the start 80 // find the start
80 if (data[0] == 137 && data[1] == 80 && data[2] == 78 && data[3] == 71 && 81 if (data[0] == 137 && data[1] == 80 && data[2] == 78 && data[3] == 71 &&
81 data[4] == 13 && data[5] == 10 && data[6] == 26 && data[7] == 10 ) 82 data[4] == 13 && data[5] == 10 && data[6] == 26 && data[7] == 10 )
82 { 83 {
83 // ok 84 // ok
84 // the IHDR chunk should be the first 85 // the IHDR chunk should be the first
85 if (!strncmp((char*)&data[12], "IHDR", 4)) 86 if (!strncmp((char*)&data[12], "IHDR", 4))