2013-07-07 10:27:45 +02:00
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#include <string.h>
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2013-07-07 16:55:22 +02:00
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#include <ctype.h>
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2013-07-07 10:27:45 +02:00
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#define MAX_RECORDS 1000
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2013-07-08 21:20:36 +02:00
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static void unencode(const char *src, char *dest)
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{
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for (; *src; src++, dest++) {
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if (*src == '+')
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*dest = ' ';
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else if (*src == '%') {
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int code;
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if (sscanf(src+1, "%2x", &code) != 1)
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code = '?';
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*dest = code;
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src += 2;
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} else
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*dest = *src;
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}
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*dest = '\0';
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}
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2013-07-07 10:27:45 +02:00
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int readdata(char * * const data, int sz)
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{
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FILE *f = fopen("data.txt", "rt");
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if (!f)
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return 0; // failed
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char line[10000] = {0};
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int i = 0;
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while (i < sz && fgets(line,sizeof(line)-2,f)) {
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if (strncmp(line, "name=", 5) == 0) {
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2013-07-07 16:55:22 +02:00
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int len = strlen(line);
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while (line[len-1] == '\n' || line[len-1] == '\r' || line[len-1] == '\t' || line[len-1] == ' ')
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line[--len] = '\0';
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data[i] = malloc(len);
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2013-07-07 10:27:45 +02:00
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strcpy(data[i], line);
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i++;
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}
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}
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fclose(f);
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return 1; // success
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}
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2013-07-07 11:07:23 +02:00
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const char * getname(const char *data)
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{
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2013-07-07 10:27:45 +02:00
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static char name[32];
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if (strncmp(data,"name=",5) != 0)
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return NULL;
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int i = 0;
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while (i < sizeof(name) && data[i+5] && data[i+5] != '&') {
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name[i] = data[i+5];
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i++;
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}
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if (i >= sizeof(name))
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return NULL;
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while (i < sizeof(name))
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name[i++] = 0;
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return name;
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}
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2013-07-13 09:16:15 +02:00
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int getversion(const char *data)
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{
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const char *name = getname(data);
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if (name == NULL)
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return 0; // invalid string => 0
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data = data + strlen("name=") + strlen(name);
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if (strncmp(data,"&version=",9) != 0)
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return 1; // no version => 1
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data = data + 9;
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int ret = 0;
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while (isdigit(*data)) {
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ret = ret * 10 + *data - '0';
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data++;
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}
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if (*data != '\0' && *data != '&')
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return -1; // invalid version => -1
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return ret;
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}
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2013-07-07 10:27:45 +02:00
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void sortdata(char * * const data, int sz)
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{
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for (int i = 1; i < sz && data[i]; i++) {
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if (strcmp(data[i-1], data[i]) > 0) {
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char *p = data[i-1];
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data[i-1] = data[i];
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data[i] = p;
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2013-07-07 16:55:22 +02:00
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if (i >= 2)
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i -= 2;
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2013-07-07 10:27:45 +02:00
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}
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}
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}
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2013-07-07 18:06:52 +02:00
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void generatepage(const char msg[])
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{
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puts("Content-type: text/html\r\n\r\n");
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puts("<html>");
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puts("<head><script>");
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2013-07-13 21:02:45 +02:00
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puts("function ok() { window.location = \"http://cppcheck.sourceforge.net/archive/\"; }");
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2013-07-07 18:06:52 +02:00
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puts("</script></head>");
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puts("<body>");
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puts(msg);
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puts("<br><input type=\"button\" value=\"OK\" onclick=\"ok()\"></body></html>");
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}
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2013-07-13 09:16:15 +02:00
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const char *validate_name_version(const char *data)
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{
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int i = 0;
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// name
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if (strncmp(data,"name=",5) != 0)
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return "invalid query string: must start with 'name='";
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i += 5;
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if (!isalnum(data[i]))
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return "invalid query string: no name / invalid character in name";
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while (isalnum(data[i]))
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i++;
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if (i > 35)
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return "invalid query string: max name size is 32";
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// version
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if (strncmp(&data[i], "&version=", 9) != 0)
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return "invalid query string: 'version=' not seen at the expected location";
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i += strlen("&version=");
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if (!isdigit(data[i]))
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return "invalid query string: version must consist of digits 0-9";
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while (isdigit(data[i]))
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i++;
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// end
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if (data[i] != '\0')
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return "invalid query";
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return NULL;
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}
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const char *validate_name_version_data(const char *data)
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{
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int i = 0;
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// name
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if (strncmp(data,"name=",5) != 0)
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return "invalid query string: must start with 'name='";
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i += 5;
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if (!isalnum(data[i]))
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return "invalid query string: no name / invalid character in name";
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while (isalnum(data[i]))
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i++;
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if (i > 35)
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return "invalid query string: max name size is 32";
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// version
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if (strncmp(&data[i], "&version=", 9) != 0)
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return "invalid query string: 'version=' not seen at the expected location";
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i += strlen("&version=");
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if (!isdigit(data[i]))
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return "invalid query string: version must consist of digits 0-9";
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while (isdigit(data[i]))
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i++;
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// filedata
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if (strncmp(data+i, "&data=", 6) != 0)
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return "invalid query string: 'data=' not seen at the expected location";
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return NULL;
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}
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