why is line 168 a bug when ran through a static analyisis too. In depth please

151 A&xcRx (path, ARTICLEPATH) 152 153 strcat (path, saction [1]): logData (ARattis, "user request to read article: tile Kopen (path, " if (Ifile) 154 ", path); 155 156 157 158 159 160 aARest (FILENOTAVAIL)); writesock (sock, return FILENOTAVAIL, 162 163 164 165 166 167 / saeta for the size of the buffer (100), from the file writing the article to the user each time! / while (fgeta (buf, 1000, file)) 168 169 170 writeSock (sock, but, stzlen (but)): 172 fcloss (file); 173 174 175 176 return: 178 void listArticles (int sock, FILE uRgtide, char action) 179 180 char buf [1001