_NAME_
fileExists

_PROTOTYPE_
int fileExists(char *path);

_SHORT-DESCRIPTION_
Check on the existence of a file

_DESCRIPTION_
fileExists is used primarily by the put data routines to check if an
archive data file exists already or needs to be created and initialized.
Returns 1 (true) if the file does exist, and 0 (false) if not.  If the
file is actually a directory, 0 is returned.

_SHORT-CODE-SAMPLE_
char filePath[] = "/home/idunn1/rgr/dataStorage/data1.out";
if (fileExists(filePath)) printf("%s exists.\n", filePath);
else printf("%s does not exist.\n", filePath);

_INPUT_
* A pointer to the file's path string.

_OUTPUT_
* 1 if the file exists.
* 0 if the file does not exist (or if the file is actually a directory.)