c - Can I change the getenv 's return value? -

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i want know happened if change memory return getenv

i know not code. know setenv way.

like:

char *new_path = "/home/user/dev/mytry1"; char *path = getenv("path");// assume there : path=/home/user/dev/mytry //now *path = "/home/user/dev/mytry"  memcpy(path,new_path,strlen(new_path)+1);

is undefined behavior ? or wrong code?

i tried , no error or segmentation fault happened.

no, can't. documentation:

conforming applications required not modify environ directly, use functions described here manipulate process environment abstract object.


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