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Originally posted by Hko But how come the ~ makes it segfault, I'm wondering.
If ~ is illegal in filenames, fopen() should return error, not segfault.
What could be the reason?
what I am doing now:
#define STATUSFILENAME "/.calculastatus"
strcpy(localfilename,""); /* Clear local filename */
strcat(localfilename,getenv("HOME")); /* get home dir */
strcat(localfilename,STATUSFILENAME); /* append my filename */
I found that the localfilename string was filled with lots of nice junk
and that goofed me up for a short time.
It's for an RPN calculator program that binds the keyboard in
(what I hope is) a logical manner. I bind the keys of the imbedded
numeric keypad to numbers and the functions to the other keys
To improve even further, you could add error checking. The segfault you had earlier was probably because you didn't check if the fopen succeeded at all. Similarly, getenv() may not find the "HOME" environment variable (unlikely, but possible), and sprintf might result in a pathname that is too long for the buffer. Use snprintf instead.