cafe-grader-web

Commit r177:5f8c24384d1c public

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Description:
added .gitignore to hold empty dirs, fixed deprecation warnings on const char* for box.cc git-svn-id: http://theory.cpe.ku.ac.th/grader/web/trunk@379 6386c4cd-e34a-4fa8-8920-d93eb39b512e
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[Not Reviewed]
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r177:5f8c24384d1c - - 4 files changed: 6 inserted, 2 deleted

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@@ -64,107 +64,107
64 64 {
65 65 fprintf(stderr,"%.4lfr%.4lfu%.4lfs%dm\n",
66 66 wall_time, user_time, system_time, mem_usage);
67 67 }
68 68
69 69 static void NONRET
70 70 box_exit(void)
71 71 {
72 72 if (box_pid > 0) {
73 73 if (is_ptraced)
74 74 ptrace(PTRACE_KILL, box_pid);
75 75 kill(-box_pid, SIGKILL);
76 76 kill(box_pid, SIGKILL);
77 77 }
78 78
79 79 struct timeval total;
80 80 int wall;
81 81 struct rusage rus;
82 82 int stat;
83 83 pid_t p;
84 84
85 85 // wait so that we can get information
86 86 p = wait4(box_pid, &stat, WUNTRACED, &rus);
87 87 if (p < 0) {
88 88 fprintf(stderr,"wait4: error\n");
89 89 print_running_stat(0,0,0,max_mem_used);
90 90 } else if (p != box_pid) {
91 91 fprintf(stderr,"wait4: unknown pid %d exited!\n", p);
92 92 print_running_stat(0,0,0,max_mem_used);
93 93 } else {
94 94 if (!WIFEXITED(stat))
95 95 fprintf(stderr,"wait4: unknown status\n");
96 96 struct timeval total;
97 97 int wall;
98 98 wall = time(NULL) - start_time;
99 99 timeradd(&rus.ru_utime, &rus.ru_stime, &total);
100 100
101 101 print_running_stat((double)wall,
102 102 (double) rus.ru_utime.tv_sec +
103 103 ((double) rus.ru_utime.tv_usec/1000000.0),
104 104 (double) rus.ru_stime.tv_sec +
105 105 ((double) rus.ru_stime.tv_usec/1000000.0),
106 106 max_mem_used);
107 107 }
108 108 exit(1);
109 109 }
110 110
111 111 static void NONRET __attribute__((format(printf,1,2)))
112 - die(char *msg, ...)
112 + die(const char *msg, ...)
113 113 {
114 114 va_list args;
115 115 va_start(args, msg);
116 116 vfprintf(stderr, msg, args);
117 117 fputc('\n', stderr);
118 118 box_exit();
119 119 }
120 120
121 121 static void __attribute__((format(printf,1,2)))
122 - log(char *msg, ...)
122 + log(const char *msg, ...)
123 123 {
124 124 va_list args;
125 125 va_start(args, msg);
126 126 if (verbose)
127 127 {
128 128 vfprintf(stderr, msg, args);
129 129 fflush(stderr);
130 130 }
131 131 va_end(args);
132 132 }
133 133
134 134 static void
135 135 valid_filename(unsigned long addr)
136 136 {
137 137 char namebuf[4096], *p, *end;
138 138 static int mem_fd;
139 139
140 140 if (!file_access)
141 141 die("File access forbidden.");
142 142 if (file_access >= 9)
143 143 return;
144 144
145 145 if (!mem_fd)
146 146 {
147 147 sprintf(namebuf, "/proc/%d/mem", (int) box_pid);
148 148 mem_fd = open(namebuf, O_RDONLY);
149 149 if (mem_fd < 0)
150 150 die("open(%s): %m", namebuf);
151 151 }
152 152 p = end = namebuf;
153 153 do
154 154 {
155 155 if (p >= end)
156 156 {
157 157 int remains = PAGE_SIZE - (addr & (PAGE_SIZE-1));
158 158 int l = namebuf + sizeof(namebuf) - end;
159 159 if (l > remains)
160 160 l = remains;
161 161 if (!l)
162 162 die("Access to file with name too long.");
163 163 if (long_seek(mem_fd, addr, SEEK_SET) < 0)
164 164 die("long_seek(mem): %m");
165 165 remains = read(mem_fd, end, l);
166 166 if (remains < 0)
167 167 die("read(mem): %m");
168 168 if (!remains)
169 169 die("Access to file with name out of memory.");
170 170 end += l;
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