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ctermid ? get controlling terminal name |
#include <stdio.h> char *ctermid(char *s); |
ctermid() returns a string which is the pathname for the current controlling terminal for this process. If s is NULL, a static buffer is used, otherwise s points to a buffer used to hold the terminal pathname. The symbolic constant L_ctermid is the maximum number of characters in the returned pathname. |
The pointer to the pathname. |
POSIX.1 |
The path returned may not uniquely identify the controlling terminal; it may, for example, be /dev/tty. It is not assured that the program can open the terminal. |
ttyname(3) |