// -------------------------------------------------------------------------
// Part of the simple stack. Accepts a stack and the pointer you want to
// store. NULL is not allowed, as it is used in Pop() to signal an empty
// stack.
// -------------------------------------------------------------------------
void Push(Stack* stack, const void* value)
{
stackObject* pushee;
// Throw away invalid parameters.
if (NULL == value)
{
fprintf(stderr, "nedit: Internal error: NULL was pushed.\n");
return;
}
if (NULL == stack)
{
fprintf(stderr, "nedit: Internal error: push() called with NULL stack.\n");
return;
}
// Allocate memory for new value.
pushee = (stackObject*) malloc__(sizeof(stackObject));
// Put pushee on top of stack.
pushee->value = (void*) value;
pushee->next = stack->top;
stack->top = pushee;
(stack->size)++;
return;
}
void* realloc__(void* p, size_t size, const char* file, int line)
{
if (NULL != p && 0 == size)
{
free__(p);
return NULL;
}
if (NULL == p)
return malloc__(size, file, line);
#ifdef _PALM_OS
if (errNone == MemPtrResize(p, size))
return p;
void* np = malloc__(size, file, line);
if (NULL == np)
return NULL;
MemMove(np, p, MemPtrSize(p));
free__(p);
#elif defined(_WIN32_WCE)
void* np = realloc(p, size);
#ifndef NDEBUG
if (np != p)
{
logAllocation(p, 0, true, __FILE__, __LINE__);
if (NULL != np)
logAllocation(np, size, false, __FILE__, __LINE__);
}
#endif
#endif
return np;
}
// -------------------------------------------------------------------------
// Return a pointer to the username of the current user in a statically allocated string.
// -------------------------------------------------------------------------
const char* NeGetUserName()
{
static char* userName = NULL;
#ifdef WIN32
if (userName) return userName;
userName = new char[MAXPATHLEN];
userName[0] = '\0';
const char* ptr = getenv("USERNAME");
if (ptr)
strncpy(userName, ptr, MAXPATHLEN-1);
return userName;
#else
// cuserid has apparently been dropped from the ansi C standard, and if
// strict ansi compliance is turned on (on Sun anyhow, maybe others), calls
// to cuserid fail to compile. Older versions of nedit try to use the
// getlogin call first, then if that fails, use getpwuid and getuid. This
// results in the user-name of the original terminal being used, which is
// not correct when the user uses the su command. Now, getpwuid only:
const struct passwd* passwdEntry;
if (userName)
return userName;
passwdEntry = getpwuid(getuid());
if (!passwdEntry)
{
// This is really serious, but sometimes username service
// is misconfigured through no fault of the user. Be nice
// and let the user start nc anyway.
perror("nedit: getpwuid() failed - reverting to $USER");
return getenv("USER");
}
else
{
userName=(char*)malloc__(strlen(passwdEntry->pw_name)+1);
strcpy(userName, passwdEntry->pw_name);
return userName;
}
#endif
}
void* malloc__(size_t size)
{
return malloc__(size, __FILE__, __LINE__);
}