SEI CERT C Coding Standard

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Code Block
bgColor#ccccff
char *temp;
char *tmpvarcopy;

if ((temp = getenv("TEMPTEST_ENV")) != NULL) {
  tmpvarcopy= malloc(strlen(temp) + 1);
  if (tmpvarcopy != NULL)
    strcpy(tmpvarcopy, temp);
  else
    /* handle error condition */

  tmpvarcopy[0] = 'a';
  setenv("TEMPTEST_ENV", tmpvarcopy, 1);
}
else {
  return -1;
}

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Wiki Markup
\[[ISO/IEC 9899-1999:TC2|AA. C References#ISO/IEC 9899-19991999TC]\] Section 7.20.4, "Communication with the environment"