Date: Mon, 01 Sep 1997 14:24:16 -0400 From: John Szumowski <harpo@javanet.com> To: freebsd-questions@freebsd.org Subject: Please help with compile of .c file for Apache Message-ID: <340B0832.41C67EA6@javanet.com>
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I'm still in the process of learning about Apache, and decided to try
and get a counter set up. I downloaded cgi-pack.tar.gz from
ftp.apache.org- but when I tried to compile "counter.c", it bombs.
Here's what I see:
---
root@vger:/usr/local/src/apache_1.2.4/cgi-pack$ make count
gcc -c -g count.c
count.c: In function `main':
count.c:98: incompatible types in assignment
*** Error code 1
Stop.
---
Because I really have very little C programming experience under Unix
(that's something I'm working on ;-), I wasn't sure what to make of it.
The only modifications I've made to the original count.c are changing
the #include <dbm.h> to #include <ndbm.h> (I don't know if that was
wise...but that seemed to be the file the mod_auth_dbm files in Apache's
source directory were calling), and setting the COUNT_DIR to where I
want the log files.
This is probably pretty simple (I'm guessing!) but I'm not sure how to
approach this.
Alternatively, if anyone's happened across a good (+ simple) counter
program that'll work under Apache 1.2.4, I'd appreciate an email.
TIA,
John Szumowski
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/*
* A simple WebPage counter
*
* Based on an original Perl script by Roman Czyborra
* Script modified by Jim Jagielski (jim@jaguNET.com)
*
* Port to C by Jim Jagielski
*/
/*
* Method of use:
* Assuming that 'count' is placed in /cgi-bin, the CGI "script"
* should be called as:
*
* <IMG SRC="/cgi-bin/count/pathname-of-webpage"
* ALT="[some bitmapped number]">
*
* Thus, a page in jim's directory would be refered to as:
*
* <IMG SRC="/cgi-bin/count/~jim/page.html"
* ALT="[some bitmapped number]">
*
*/
/*
* Program methodology:
* o Open the lockfile (should exist first)
* o and FLOCK it
* o Now open and use the dbm file that contains the key and content
* where the 'key' is the pathname included in the URL
* o increment and store the counter
* o return the x-bitmap that is the count
*/
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/file.h>
#include <ndbm.h>
#include <strings.h>
#define COUNT_DIR "/usr/local/etc/httpd/counter"
#define COUNT_LOCK "Count"
#define COUNT_FILE "Count"
main(argc, argv)
int argc;
char *argv[];
{
datum key, content;
int fd;
char *path, *getenv();
int count, i, j;
char cntstr[10];
char *iam;
int bval;
char reverse = 0;
int bitmap[10][10] = {
{ 0x3c, 0x10, 0x3c, 0x3c, 0x60, 0x7e, 0x3c, 0x7e, 0x3c, 0x3c },
{ 0x42, 0x1c, 0x42, 0x42, 0x50, 0x02, 0x42, 0x40, 0x42, 0x42 },
{ 0x42, 0x10, 0x42, 0x42, 0x48, 0x02, 0x02, 0x20, 0x42, 0x42 },
{ 0x42, 0x10, 0x20, 0x40, 0x48, 0x02, 0x02, 0x20, 0x42, 0x42 },
{ 0x42, 0x10, 0x10, 0x38, 0x44, 0x3e, 0x3a, 0x10, 0x3c, 0x42 },
{ 0x42, 0x10, 0x08, 0x40, 0x42, 0x40, 0x46, 0x10, 0x42, 0x7c },
{ 0x42, 0x10, 0x04, 0x40, 0xfe, 0x40, 0x42, 0x08, 0x42, 0x40 },
{ 0x42, 0x10, 0x02, 0x42, 0x40, 0x42, 0x42, 0x08, 0x42, 0x42 },
{ 0x42, 0x10, 0x02, 0x42, 0x40, 0x42, 0x42, 0x04, 0x42, 0x42 },
{ 0x3c, 0x10, 0x7e, 0x3c, 0x40, 0x3c, 0x3c, 0x04, 0x3c, 0x3c }
};
if (!(iam = strrchr(argv[0], '/')))
iam = argv[0];
if (strcmp(iam, "ccount") == 0)
reverse = 1;
if ((path = getenv("PATH_INFO")) == NULL)
exit(1);
if (*path == '/')
path++;
key.dptr = path;
key.dsize = strlen(path);
if (chdir(COUNT_DIR) < 0)
dodie("count chdir");
if ((fd = open(COUNT_LOCK, O_RDWR|O_CREAT, 0644)) < 0)
dodie("count open");
if (flock(fd, LOCK_EX))
dodie("count flock");
if (dbminit(COUNT_FILE))
dodie("count dbminit");
content = fetch(key);
if (!content.dptr) {
count = 1;
strcpy(cntstr, "1");
} else {
count = (content.dsize < 9) ? content.dsize : 9;
strncpy(cntstr, content.dptr, count);
cntstr[count] = '\0';
count = atoi(cntstr);
if (++count > 999999999)
count = 1;
sprintf(cntstr, "%d", count);
}
content.dptr = cntstr;
content.dsize = strlen(cntstr);
if (store(key, content))
dodie("count store");
if (flock(fd, LOCK_UN))
dodie("count unflock");
if (close(fd))
dodie("count close");
/*
* Okey dokey... Got the count, so let's generate the bitmap
*/
count = strlen(cntstr); /* for later */
printf("Content-Type: image/x-xbitmap\n\n");
printf("#define count_width %d\n", 8*count--);
printf("#define count_height 10\n");
printf("static char count_bits[] = {\n");
for (i=0; i<=9; i++) {
for(j=0; j<=count; j++) {
bval = bitmap[i][cntstr[j]-'0'];
if (reverse)
bval = 0xff - bval;
printf(" 0x%02x,", bval);
}
printf("\n");
}
printf("};\n");
exit(0);
}
dodie(what)
char *what;
{
perror(what);
exit(1);
}
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