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Fix crash on proxy detection on OS X (FS#11654).

Browse source 
If the proxy dialog doesn't contain any values searching for the values in the
system returns NULL pointers instead of empty values. Check for them to fix
crashes.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28212 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Dominik Riebeling 2010-10-05 19:53:48 +00:00
parent 85f1df1b1a
commit 90e8815673
1 changed files with 26 additions and 19 deletions
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45
rbutil/rbutilqt/base/system.cpp
View file

@ -509,33 +509,40 @@ QUrl System::systemProxy(void)
CFDictionaryRef dictref;
CFStringRef stringref;
CFNumberRef numberref;
int enable;
int port;
int enable = 0;
int port = 0;
unsigned int bufsize = 0;
char *buf;
QUrl proxy;
dictref = SCDynamicStoreCopyProxies(NULL);
stringref = (CFStringRef)CFDictionaryGetValue(dictref, kSCPropNetProxiesHTTPProxy);
if(dictref == NULL)
return proxy;
numberref = (CFNumberRef)CFDictionaryGetValue(dictref, kSCPropNetProxiesHTTPEnable);
CFNumberGetValue(numberref, kCFNumberIntType, &enable);
if(numberref != NULL)
CFNumberGetValue(numberref, kCFNumberIntType, &enable);
if(enable == 1) {
// get number of characters. CFStringGetLength uses UTF-16 code pairs
bufsize = CFStringGetLength(stringref) * 2 + 1;
buf = (char*)malloc(sizeof(char) * bufsize);
if(buf == NULL) {
qDebug() << "[System] can't allocate memory for proxy string!";
CFRelease(dictref);
return QUrl("");
}
CFStringGetCString(stringref, buf, bufsize, kCFStringEncodingUTF16);
numberref = (CFNumberRef)CFDictionaryGetValue(dictref, kSCPropNetProxiesHTTPPort);
CFNumberGetValue(numberref, kCFNumberIntType, &port);
proxy.setScheme("http");
proxy.setHost(QString::fromUtf16((unsigned short*)buf));
proxy.setPort(port);
// get proxy string
stringref = (CFStringRef)CFDictionaryGetValue(dictref, kSCPropNetProxiesHTTPProxy);
if(stringref != NULL) {
// get number of characters. CFStringGetLength uses UTF-16 code pairs
bufsize = CFStringGetLength(stringref) * 2 + 1;
buf = (char*)malloc(sizeof(char) * bufsize);
if(buf == NULL) {
qDebug() << "[System] can't allocate memory for proxy string!";
CFRelease(dictref);
return QUrl("");
}
CFStringGetCString(stringref, buf, bufsize, kCFStringEncodingUTF16);
numberref = (CFNumberRef)CFDictionaryGetValue(dictref, kSCPropNetProxiesHTTPPort);
if(numberref != NULL)
CFNumberGetValue(numberref, kCFNumberIntType, &port);
proxy.setScheme("http");
proxy.setHost(QString::fromUtf16((unsigned short*)buf));
proxy.setPort(port);
free(buf);
free(buf);
}
}
CFRelease(dictref);