httpd/test/cls.c

	cls.c revision 09fe0b69d3d1e8c8041c9ce99ee77b8b44b5e3b1
#include <ctype.h>
#include <dirent.h>
#include <stdio.h>
#include <string.h>
#include <time.h>

/*
 * Compare a string to a mask
 * Mask characters:
 *   @ - uppercase letter
 *   # - lowercase letter
 *   & - hex digit
 *   # - digit
 *   * - swallow remaining characters
 *  <x> - exact match for any other character
 */
static int checkmask(const char *data, const char *mask)
{
    int i, ch, d;

    for (i = 0; mask[i] != '\0' && mask[i] != '*'; i++) {
    ch = mask[i];
    d = data[i];
    if (ch == '@') {
        if (!isupper(d))
        return 0;
    }
    else if (ch == '$') {
        if (!islower(d))
        return 0;
    }
    else if (ch == '#') {
        if (!isdigit(d))
        return 0;
    }
    else if (ch == '&') {
        if (!isxdigit(d))
        return 0;
    }
    else if (ch != d)
        return 0;
    }

    if (mask[i] == '*')
    return 1;
    else
    return (data[i] == '\0');
}

/*
 * Converts 8 hex digits to a time integer
 */
static int hex2sec(const char *x)
{
    int i, ch;
    unsigned int j;

    for (i = 0, j = 0; i < 8; i++) {
    ch = x[i];
    j <<= 4;
    if (isdigit(ch))
        j |= ch - '0';
    else if (isupper(ch))
        j |= ch - ('A' - 10);
    else
        j |= ch - ('a' - 10);
    }
    if (j == 0xffffffff)
    return -1;      /* so that it works with 8-byte ints */
    else
    return j;
}

int main(int argc, char **argv)
{
    int i, ver;
    DIR *d;
    struct dirent *e;
    const char *s;
    FILE *fp;
    char path[FILENAME_MAX + 1];
    char line[1035];
    time_t date, lmod, expire;
    unsigned int len;
    struct tm ts;
    char sdate[30], slmod[30], sexpire[30];
    const char time_format[] = "%e %b %Y %R";

    if (argc != 2) {
    printf("Usage: cls directory\n");
    exit(0);
    }

    d = opendir(argv[1]);
    if (d == NULL) {
    perror("opendir");
    exit(1);
    }

    for (;;) {
    e = readdir(d);
    if (e == NULL)
        break;
    s = e->d_name;
    if (s[0] == '.' || s[0] == '#')
        continue;
    sprintf(path, "%s/%s", argv[1], s);
    fp = fopen(path, "r");
    if (fp == NULL) {
        perror("fopen");
        continue;
    }
    if (fgets(line, 1034, fp) == NULL) {
        perror("fgets");
        fclose(fp);
        continue;
    }
    if (!checkmask(line, "&&&&&&&& &&&&&&&& &&&&&&&& &&&&&&&& &&&&&&&&\n")) {
        fprintf(stderr, "Bad cache file\n");
        fclose(fp);
        continue;
    }
    date = hex2sec(line);
    lmod = hex2sec(line + 9);
    expire = hex2sec(line + 18);
    ver = hex2sec(line + 27);
    len = hex2sec(line + 35);
    if (fgets(line, 1034, fp) == NULL) {
        perror("fgets");
        fclose(fp);
        continue;
    }
    fclose(fp);
    i = strlen(line);
    if (strncmp(line, "X-URL: ", 7) != 0 || line[i - 1] != '\n') {
        fprintf(stderr, "Bad cache file\n");
        continue;
    }
    line[i - 1] = '\0';
    if (date != -1) {
        ts = *gmtime(&date);
        strftime(sdate, 30, time_format, &ts);
    }
    else
        strcpy(sdate, "-");

    if (lmod != -1) {
        ts = *gmtime(&lmod);
        strftime(slmod, 30, time_format, &ts);
    }
    else
        strcpy(slmod, "-");

    if (expire != -1) {
        ts = *gmtime(&expire);
        strftime(sexpire, 30, time_format, &ts);
    }
    else
        strcpy(sexpire, "-");

    printf("%s: %d; %s  %s  %s\n", line + 7, ver, sdate, slmod, sexpire);
    }

    closedir(d);
    return 0;
}