cafe-grader-judge-scripts

Commit r76:4469d653fe5f public

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Description:
added /dev/urandom to file allowed to be accessed, probably needed after ubuntu 9.04 git-svn-id: http://theory.cpe.ku.ac.th/grader/judge/trunk/scripts@417 6386c4cd-e34a-4fa8-8920-d93eb39b512e
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[Not Reviewed]
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r76:4469d653fe5f - - 1 file changed: 1 inserted, 0 deleted

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@@ -178,24 +178,25
178 178 return;
179 179 if (!strchr(namebuf, '/') && strcmp(namebuf, ".."))
180 180 return;
181 181 if (file_access >= 2)
182 182 {
183 183 if ((!strncmp(namebuf, "/etc/", 5) ||
184 184 !strncmp(namebuf, "/lib/", 5) ||
185 185 !strncmp(namebuf, "/usr/lib/", 9))
186 186 && !strstr(namebuf, ".."))
187 187 return;
188 188 if (!strcmp(namebuf, "/dev/null") ||
189 189 !strcmp(namebuf, "/dev/zero") ||
190 + !strcmp(namebuf, "/dev/urandom") ||
190 191 !strcmp(namebuf, "/proc/meminfo") ||
191 192 !strcmp(namebuf, "/proc/self/stat") ||
192 193 !strncmp(namebuf, "/usr/share/zoneinfo/", 20))
193 194 return;
194 195 }
195 196 die("Forbidden access to file `%s'.", namebuf);
196 197 }
197 198
198 199 static int
199 200 valid_syscall(struct user *u)
200 201 {
201 202 switch (u->regs.orig_eax)
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