]>
git.ipfire.org Git - thirdparty/cups.git/blob - cgi-bin/var.c
2 * "$Id: var.c 7460 2008-04-16 02:19:54Z mike $"
4 * CGI form variable and array functions for CUPS.
6 * Copyright 2007-2011 by Apple Inc.
7 * Copyright 1997-2005 by Easy Software Products.
9 * These coded instructions, statements, and computer programs are the
10 * property of Apple Inc. and are protected by Federal copyright
11 * law. Distribution and use rights are outlined in the file "LICENSE.txt"
12 * which should have been included with this file. If this file is
13 * file is missing or damaged, see the license at "http://www.cups.org/".
17 * cgiCheckVariables() - Check for the presence of "required"
19 * cgiClearVariables() - Clear all form variables.
20 * cgiGetArray() - Get an element from a form array.
21 * cgiGetCookie() - Get a cookie value.
22 * cgiGetFile() - Get the file (if any) that was submitted in
24 * cgiGetSize() - Get the size of a form array value.
25 * cgiGetVariable() - Get a CGI variable from the database.
26 * cgiInitialize() - Initialize the CGI variable "database".
27 * cgiIsPOST() - Determine whether this page was POSTed.
28 * cgiSetArray() - Set array element N to the specified string.
29 * cgiSetCookie() - Set a cookie value.
30 * cgiSetSize() - Set the array size.
31 * cgiSetVariable() - Set a CGI variable in the database.
32 * cgi_add_variable() - Add a form variable.
33 * cgi_compare_variables() - Compare two variables.
34 * cgi_find_variable() - Find a variable.
35 * cgi_initialize_cookies() - Initialize cookies.
36 * cgi_initialize_get() - Initialize form variables using the GET
38 * cgi_initialize_multipart() - Initialize variables and file using the POST
40 * cgi_initialize_post() - Initialize variables using the POST method.
41 * cgi_initialize_string() - Initialize form variables from a string.
42 * cgi_passwd() - Catch authentication requests and notify the
44 * cgi_set_sid() - Set the CUPS session ID.
45 * cgi_sort_variables() - Sort all form variables for faster lookup.
46 * cgi_unlink_file() - Remove the uploaded form.
50 #include "cgi-private.h"
51 #include <cups/http.h>
52 #include <cups/md5-private.h>
59 #define CUPS_SID "org.cups.sid"
63 * Data structure to hold all the CGI form variables and arrays...
66 typedef struct /**** Form variable structure ****/
68 const char *name
; /* Name of variable */
69 int nvalues
, /* Number of values */
70 avalues
; /* Number of values allocated */
71 const char **values
; /* Value(s) of variable */
79 static int num_cookies
= 0;/* Number of cookies */
80 static cups_option_t
*cookies
= NULL
;/* Cookies */
81 static int form_count
= 0, /* Form variable count */
82 form_alloc
= 0; /* Number of variables allocated */
83 static _cgi_var_t
*form_vars
= NULL
;
85 static cgi_file_t
*form_file
= NULL
;
93 static void cgi_add_variable(const char *name
, int element
,
95 static int cgi_compare_variables(const _cgi_var_t
*v1
,
96 const _cgi_var_t
*v2
);
97 static _cgi_var_t
*cgi_find_variable(const char *name
);
98 static void cgi_initialize_cookies(void);
99 static int cgi_initialize_get(void);
100 static int cgi_initialize_multipart(const char *boundary
);
101 static int cgi_initialize_post(void);
102 static int cgi_initialize_string(const char *data
);
103 static const char *cgi_passwd(const char *prompt
);
104 static const char *cgi_set_sid(void);
105 static void cgi_sort_variables(void);
106 static void cgi_unlink_file(void);
110 * 'cgiCheckVariables()' - Check for the presence of "required" variables.
112 * Names may be separated by spaces and/or commas.
115 int /* O - 1 if all variables present, 0 otherwise */
116 cgiCheckVariables(const char *names
) /* I - Variables to look for */
118 char name
[255], /* Current variable name */
119 *s
; /* Pointer in string */
120 const char *val
; /* Value of variable */
121 int element
; /* Array element number */
127 while (*names
!= '\0')
129 while (*names
== ' ' || *names
== ',')
132 for (s
= name
; *names
!= '\0' && *names
!= ' ' && *names
!= ','; s
++, names
++)
139 if ((s
= strrchr(name
, '-')) != NULL
)
142 element
= atoi(s
+ 1) - 1;
143 val
= cgiGetArray(name
, element
);
146 val
= cgiGetVariable(name
);
152 return (0); /* Can't be blank, either! */
160 * 'cgiClearVariables()' - Clear all form variables.
164 cgiClearVariables(void)
166 int i
, j
; /* Looping vars */
167 _cgi_var_t
*v
; /* Current variable */
170 for (v
= form_vars
, i
= form_count
; i
> 0; v
++, i
--)
172 _cupsStrFree(v
->name
);
173 for (j
= 0; j
< v
->nvalues
; j
++)
175 _cupsStrFree(v
->values
[j
]);
185 * 'cgiGetArray()' - Get an element from a form array.
188 const char * /* O - Element value or NULL */
189 cgiGetArray(const char *name
, /* I - Name of array variable */
190 int element
) /* I - Element number (0 to N) */
192 _cgi_var_t
*var
; /* Pointer to variable */
195 if ((var
= cgi_find_variable(name
)) == NULL
)
198 if (element
< 0 || element
>= var
->nvalues
)
201 return (_cupsStrRetain(var
->values
[element
]));
206 * 'cgiGetCookie()' - Get a cookie value.
209 const char * /* O - Value or NULL */
210 cgiGetCookie(const char *name
) /* I - Name of cookie */
212 return (cupsGetOption(name
, num_cookies
, cookies
));
217 * 'cgiGetFile()' - Get the file (if any) that was submitted in the form.
220 const cgi_file_t
* /* O - Attached file or NULL */
228 * 'cgiGetSize()' - Get the size of a form array value.
231 int /* O - Number of elements */
232 cgiGetSize(const char *name
) /* I - Name of variable */
234 _cgi_var_t
*var
; /* Pointer to variable */
237 if ((var
= cgi_find_variable(name
)) == NULL
)
240 return (var
->nvalues
);
245 * 'cgiGetVariable()' - Get a CGI variable from the database.
247 * Returns NULL if the variable doesn't exist. If the variable is an
248 * array of values, returns the last element.
251 const char * /* O - Value of variable */
252 cgiGetVariable(const char *name
) /* I - Name of variable */
254 const _cgi_var_t
*var
; /* Returned variable */
257 var
= cgi_find_variable(name
);
261 DEBUG_printf(("cgiGetVariable(\"%s\") is returning NULL...\n", name
));
263 DEBUG_printf(("cgiGetVariable(\"%s\") is returning \"%s\"...\n", name
,
264 var
->values
[var
->nvalues
- 1]));
267 return ((var
== NULL
) ? NULL
: _cupsStrRetain(var
->values
[var
->nvalues
- 1]));
272 * 'cgiInitialize()' - Initialize the CGI variable "database".
275 int /* O - Non-zero if there was form data */
278 const char *method
, /* Form posting method */
279 *content_type
, /* Content-Type of post data */
280 *cups_sid_cookie
, /* SID cookie */
281 *cups_sid_form
; /* SID form variable */
285 * Setup a password callback for authentication...
288 cupsSetPasswordCB(cgi_passwd
);
291 * Set the locale so that times, etc. are formatted properly...
294 setlocale(LC_ALL
, "");
298 * Disable output buffering to find bugs...
301 setbuf(stdout
, NULL
);
308 cgi_initialize_cookies();
310 if ((cups_sid_cookie
= cgiGetCookie(CUPS_SID
)) == NULL
)
312 fputs("DEBUG: " CUPS_SID
" cookie not found, initializing!\n", stderr
);
313 cups_sid_cookie
= cgi_set_sid();
316 fprintf(stderr
, "DEBUG: " CUPS_SID
" cookie is \"%s\"\n", cups_sid_cookie
);
319 * Get the request method (GET or POST)...
322 method
= getenv("REQUEST_METHOD");
323 content_type
= getenv("CONTENT_TYPE");
328 * Grab form data from the corresponding location...
331 if (!_cups_strcasecmp(method
, "GET"))
332 return (cgi_initialize_get());
333 else if (!_cups_strcasecmp(method
, "POST") && content_type
)
335 const char *boundary
= strstr(content_type
, "boundary=");
340 if (content_type
&& !strncmp(content_type
, "multipart/form-data; ", 21))
342 if (!cgi_initialize_multipart(boundary
))
345 else if (!cgi_initialize_post())
348 if ((cups_sid_form
= cgiGetVariable(CUPS_SID
)) == NULL
||
349 strcmp(cups_sid_cookie
, cups_sid_form
))
352 fprintf(stderr
, "DEBUG: " CUPS_SID
" form variable is \"%s\"\n",
355 fputs("DEBUG: " CUPS_SID
" form variable is not present.\n", stderr
);
369 * 'cgiIsPOST()' - Determine whether this page was POSTed.
372 int /* O - 1 if POST, 0 if GET */
375 const char *method
; /* REQUEST_METHOD environment variable */
378 if ((method
= getenv("REQUEST_METHOD")) == NULL
)
381 return (!strcmp(method
, "POST"));
386 * 'cgiSetArray()' - Set array element N to the specified string.
388 * If the variable array is smaller than (element + 1), the intervening
389 * elements are set to NULL.
393 cgiSetArray(const char *name
, /* I - Name of variable */
394 int element
, /* I - Element number (0 to N) */
395 const char *value
) /* I - Value of variable */
397 int i
; /* Looping var */
398 _cgi_var_t
*var
; /* Returned variable */
401 if (name
== NULL
|| value
== NULL
|| element
< 0 || element
> 100000)
404 if ((var
= cgi_find_variable(name
)) == NULL
)
406 cgi_add_variable(name
, element
, value
);
407 cgi_sort_variables();
411 if (element
>= var
->avalues
)
413 const char **temp
; /* Temporary pointer */
415 temp
= (const char **)realloc((void *)(var
->values
),
416 sizeof(char *) * (element
+ 16));
420 var
->avalues
= element
+ 16;
424 if (element
>= var
->nvalues
)
426 for (i
= var
->nvalues
; i
< element
; i
++)
427 var
->values
[i
] = NULL
;
429 var
->nvalues
= element
+ 1;
431 else if (var
->values
[element
])
432 _cupsStrFree((char *)var
->values
[element
]);
434 var
->values
[element
] = _cupsStrAlloc(value
);
440 * 'cgiSetCookie()' - Set a cookie value.
444 cgiSetCookie(const char *name
, /* I - Name */
445 const char *value
, /* I - Value */
446 const char *path
, /* I - Path (typically "/") */
447 const char *domain
, /* I - Domain name */
448 time_t expires
, /* I - Expiration date (0 for session) */
449 int secure
) /* I - Require SSL */
451 num_cookies
= cupsAddOption(name
, value
, num_cookies
, &cookies
);
453 printf("Set-Cookie: %s=%s;", name
, value
);
455 printf(" path=%s;", path
);
457 printf(" domain=%s;", domain
);
460 char date
[256]; /* Date string */
462 printf(" expires=%s;", httpGetDateString2(expires
, date
, sizeof(date
)));
472 * 'cgiSetSize()' - Set the array size.
476 cgiSetSize(const char *name
, /* I - Name of variable */
477 int size
) /* I - Number of elements (0 to N) */
479 int i
; /* Looping var */
480 _cgi_var_t
*var
; /* Returned variable */
483 if (name
== NULL
|| size
< 0 || size
> 100000)
486 if ((var
= cgi_find_variable(name
)) == NULL
)
489 if (size
>= var
->avalues
)
491 const char **temp
; /* Temporary pointer */
493 temp
= (const char **)realloc((void *)(var
->values
),
494 sizeof(char *) * (size
+ 16));
498 var
->avalues
= size
+ 16;
502 if (size
> var
->nvalues
)
504 for (i
= var
->nvalues
; i
< size
; i
++)
505 var
->values
[i
] = NULL
;
507 else if (size
< var
->nvalues
)
509 for (i
= size
; i
< var
->nvalues
; i
++)
511 _cupsStrFree((void *)(var
->values
[i
]));
519 * 'cgiSetVariable()' - Set a CGI variable in the database.
521 * If the variable is an array, this truncates the array to a single element.
525 cgiSetVariable(const char *name
, /* I - Name of variable */
526 const char *value
) /* I - Value of variable */
528 int i
; /* Looping var */
529 _cgi_var_t
*var
; /* Returned variable */
532 if (name
== NULL
|| value
== NULL
)
535 if ((var
= cgi_find_variable(name
)) == NULL
)
537 cgi_add_variable(name
, 0, value
);
538 cgi_sort_variables();
542 for (i
= 0; i
< var
->nvalues
; i
++)
544 _cupsStrFree((char *)var
->values
[i
]);
546 var
->values
[0] = _cupsStrAlloc(value
);
553 * 'cgi_add_variable()' - Add a form variable.
557 cgi_add_variable(const char *name
, /* I - Variable name */
558 int element
, /* I - Array element number */
559 const char *value
) /* I - Variable value */
561 _cgi_var_t
*var
; /* New variable */
564 if (name
== NULL
|| value
== NULL
|| element
< 0 || element
> 100000)
567 DEBUG_printf(("cgi_add_variable: Adding variable \'%s\' with value "
568 "\'%s\'...\n", name
, value
));
570 if (form_count
>= form_alloc
)
572 _cgi_var_t
*temp_vars
; /* Temporary form pointer */
576 temp_vars
= malloc(sizeof(_cgi_var_t
) * 16);
578 temp_vars
= realloc(form_vars
, (form_alloc
+ 16) * sizeof(_cgi_var_t
));
583 form_vars
= temp_vars
;
587 var
= form_vars
+ form_count
;
589 if ((var
->values
= calloc(element
+ 1, sizeof(char *))) == NULL
)
592 var
->name
= _cupsStrAlloc(name
);
593 var
->nvalues
= element
+ 1;
594 var
->avalues
= element
+ 1;
595 var
->values
[element
] = _cupsStrAlloc(value
);
602 * 'cgi_compare_variables()' - Compare two variables.
605 static int /* O - Result of comparison */
606 cgi_compare_variables(
607 const _cgi_var_t
*v1
, /* I - First variable */
608 const _cgi_var_t
*v2
) /* I - Second variable */
610 return (_cups_strcasecmp(v1
->name
, v2
->name
));
615 * 'cgi_find_variable()' - Find a variable.
618 static _cgi_var_t
* /* O - Variable pointer or NULL */
619 cgi_find_variable(const char *name
) /* I - Name of variable */
621 _cgi_var_t key
; /* Search key */
624 if (form_count
< 1 || name
== NULL
)
629 return ((_cgi_var_t
*)bsearch(&key
, form_vars
, form_count
, sizeof(_cgi_var_t
),
630 (int (*)(const void *, const void *))cgi_compare_variables
));
635 * 'cgi_initialize_cookies()' - Initialize cookies.
639 cgi_initialize_cookies(void)
641 const char *cookie
; /* HTTP_COOKIE environment variable */
642 char name
[128], /* Name string */
643 value
[512], /* Value string */
644 *ptr
; /* Pointer into name/value */
647 if ((cookie
= getenv("HTTP_COOKIE")) == NULL
)
653 * Skip leading whitespace...
656 while (isspace(*cookie
& 255))
665 for (ptr
= name
; *cookie
&& *cookie
!= '=';)
666 if (ptr
< (name
+ sizeof(name
) - 1))
683 for (cookie
++, ptr
= value
; *cookie
&& *cookie
!= '\"';)
684 if (ptr
< (value
+ sizeof(value
) - 1))
694 for (ptr
= value
; *cookie
&& *cookie
!= ';';)
695 if (ptr
< (value
+ sizeof(value
) - 1))
709 * Then add the cookie to an array as long as the name doesn't start with
714 num_cookies
= cupsAddOption(name
, value
, num_cookies
, &cookies
);
720 * 'cgi_initialize_get()' - Initialize form variables using the GET method.
723 static int /* O - 1 if form data read */
724 cgi_initialize_get(void)
726 char *data
; /* Pointer to form data string */
729 DEBUG_puts("cgi_initialize_get: Initializing variables using GET method...");
732 * Check to see if there is anything for us to read...
735 data
= getenv("QUERY_STRING");
736 if (data
== NULL
|| strlen(data
) == 0)
740 * Parse it out and return...
743 return (cgi_initialize_string(data
));
748 * 'cgi_initialize_multipart()' - Initialize variables and file using the POST
751 * TODO: Update to support files > 2GB.
754 static int /* O - 1 if form data was read */
755 cgi_initialize_multipart(
756 const char *boundary
) /* I - Boundary string */
758 char line
[10240], /* MIME header line */
759 name
[1024], /* Form variable name */
760 filename
[1024], /* Form filename */
761 mimetype
[1024], /* MIME media type */
762 bstring
[256], /* Boundary string to look for */
763 *ptr
, /* Pointer into name/filename */
764 *end
; /* End of buffer */
765 int ch
, /* Character from file */
766 fd
, /* Temporary file descriptor */
767 blen
; /* Length of boundary string */
770 DEBUG_printf(("cgi_initialize_multipart(boundary=\"%s\")\n", boundary
));
773 * Read multipart form data until we run out...
780 snprintf(bstring
, sizeof(bstring
), "\r\n--%s", boundary
);
781 blen
= strlen(bstring
);
783 while (fgets(line
, sizeof(line
), stdin
))
785 if (!strcmp(line
, "\r\n"))
788 * End of headers, grab value...
794 * Read an embedded file...
800 * Remove previous file...
807 * Allocate memory for the new file...
810 if ((form_file
= calloc(1, sizeof(cgi_file_t
))) == NULL
)
813 form_file
->name
= strdup(name
);
814 form_file
->filename
= strdup(filename
);
815 form_file
->mimetype
= strdup(mimetype
);
817 fd
= cupsTempFd(form_file
->tempfile
, sizeof(form_file
->tempfile
));
822 atexit(cgi_unlink_file
);
825 * Copy file data to the temp file...
830 while ((ch
= getchar()) != EOF
)
834 if ((ptr
- line
) >= blen
&& !memcmp(ptr
- blen
, bstring
, blen
))
840 if ((ptr
- line
- blen
) >= 8192)
843 * Write out the first 8k of the buffer...
846 write(fd
, line
, 8192);
847 memmove(line
, line
+ 8192, ptr
- line
- 8192);
853 * Write the rest of the data and close the temp file...
857 write(fd
, line
, ptr
- line
);
864 * Just get a form variable; the current code only handles
865 * form values up to 10k in size...
869 end
= line
+ sizeof(line
) - 1;
871 while ((ch
= getchar()) != EOF
)
876 if ((ptr
- line
) >= blen
&& !memcmp(ptr
- blen
, bstring
, blen
))
886 * Set the form variable...
889 if ((ptr
= strrchr(name
, '-')) != NULL
&& isdigit(ptr
[1] & 255))
892 * Set a specific index in the array...
897 cgiSetArray(name
, atoi(ptr
) - 1, line
);
899 else if (cgiGetVariable(name
))
902 * Add another element in the array...
905 cgiSetArray(name
, cgiGetSize(name
), line
);
910 * Just set the line...
913 cgiSetVariable(name
, line
);
918 * Read the rest of the current line...
921 fgets(line
, sizeof(line
), stdin
);
924 * Clear the state vars...
931 else if (!_cups_strncasecmp(line
, "Content-Disposition:", 20))
933 if ((ptr
= strstr(line
+ 20, " name=\"")) != NULL
)
935 strlcpy(name
, ptr
+ 7, sizeof(name
));
937 if ((ptr
= strchr(name
, '\"')) != NULL
)
941 if ((ptr
= strstr(line
+ 20, " filename=\"")) != NULL
)
943 strlcpy(filename
, ptr
+ 11, sizeof(filename
));
945 if ((ptr
= strchr(filename
, '\"')) != NULL
)
949 else if (!_cups_strncasecmp(line
, "Content-Type:", 13))
951 for (ptr
= line
+ 13; isspace(*ptr
& 255); ptr
++);
953 strlcpy(mimetype
, ptr
, sizeof(mimetype
));
955 for (ptr
= mimetype
+ strlen(mimetype
) - 1;
956 ptr
> mimetype
&& isspace(*ptr
& 255);
962 * Return 1 for "form data found"...
970 * 'cgi_initialize_post()' - Initialize variables using the POST method.
973 static int /* O - 1 if form data was read */
974 cgi_initialize_post(void)
976 char *content_length
, /* Length of input data (string) */
977 *data
; /* Pointer to form data string */
978 int length
, /* Length of input data */
979 nbytes
, /* Number of bytes read this read() */
980 tbytes
, /* Total number of bytes read */
981 status
; /* Return status */
984 DEBUG_puts("cgi_initialize_post: Initializing variables using POST method...");
987 * Check to see if there is anything for us to read...
990 content_length
= getenv("CONTENT_LENGTH");
991 if (content_length
== NULL
|| atoi(content_length
) <= 0)
995 * Get the length of the input stream and allocate a buffer for it...
998 length
= atoi(content_length
);
999 data
= malloc(length
+ 1);
1005 * Read the data into the buffer...
1008 for (tbytes
= 0; tbytes
< length
; tbytes
+= nbytes
)
1009 if ((nbytes
= read(0, data
+ tbytes
, length
- tbytes
)) < 0)
1011 if (errno
!= EAGAIN
)
1019 else if (nbytes
== 0)
1022 * CUPS STR #3176: OpenBSD: Early end-of-file on POST data causes 100% CPU
1024 * This should never happen, but does on OpenBSD. If we see early end-of-
1025 * file, treat this as an error and process no data.
1032 data
[length
] = '\0';
1038 status
= cgi_initialize_string(data
);
1041 * Free the data and return...
1051 * 'cgi_initialize_string()' - Initialize form variables from a string.
1054 static int /* O - 1 if form data was processed */
1055 cgi_initialize_string(const char *data
) /* I - Form data string */
1057 int done
; /* True if we're done reading a form variable */
1058 char *s
, /* Pointer to current form string */
1059 ch
, /* Temporary character */
1060 name
[255], /* Name of form variable */
1061 value
[65536]; /* Variable value */
1072 * Loop until we've read all the form data...
1075 while (*data
!= '\0')
1078 * Get the variable name...
1081 for (s
= name
; *data
!= '\0'; data
++)
1084 else if (*data
>= ' ' && s
< (name
+ sizeof(name
) - 1))
1094 * Read the variable value...
1097 for (s
= value
, done
= 0; !done
&& *data
!= '\0'; data
++)
1100 case '&' : /* End of data... */
1104 case '+' : /* Escaped space character */
1105 if (s
< (value
+ sizeof(value
) - 1))
1109 case '%' : /* Escaped control character */
1111 * Read the hex code...
1114 if (!isxdigit(data
[1] & 255) || !isxdigit(data
[2] & 255))
1117 if (s
< (value
+ sizeof(value
) - 1))
1135 default : /* Other characters come straight through */
1136 if (*data
>= ' ' && s
< (value
+ sizeof(value
) - 1))
1141 *s
= '\0'; /* nul terminate the string */
1144 * Remove trailing whitespace...
1150 while (s
>= value
&& isspace(*s
& 255))
1154 * Add the string to the variable "database"...
1157 if ((s
= strrchr(name
, '-')) != NULL
&& isdigit(s
[1] & 255))
1161 cgiSetArray(name
, atoi(s
) - 1, value
);
1163 else if (cgiGetVariable(name
) != NULL
)
1164 cgiSetArray(name
, cgiGetSize(name
), value
);
1166 cgiSetVariable(name
, value
);
1174 * 'cgi_passwd()' - Catch authentication requests and notify the server.
1176 * This function sends a Status header and exits, forcing authentication
1180 static const char * /* O - NULL (no return) */
1181 cgi_passwd(const char *prompt
) /* I - Prompt (not used) */
1185 fprintf(stderr
, "DEBUG: cgi_passwd(prompt=\"%s\") called!\n",
1186 prompt
? prompt
: "(null)");
1189 * Send a 401 (unauthorized) status to the server, so it can notify
1190 * the client that authentication is required.
1193 puts("Status: 401\n");
1197 * This code is never executed, but is present to satisfy the compiler.
1205 * 'cgi_set_sid()' - Set the CUPS session ID.
1208 static const char * /* O - New session ID */
1211 char buffer
[512], /* SID data */
1212 sid
[33]; /* SID string */
1213 _cups_md5_state_t md5
; /* MD5 state */
1214 unsigned char sum
[16]; /* MD5 sum */
1215 const char *remote_addr
, /* REMOTE_ADDR */
1216 *server_name
, /* SERVER_NAME */
1217 *server_port
; /* SERVER_PORT */
1220 if ((remote_addr
= getenv("REMOTE_ADDR")) == NULL
)
1221 remote_addr
= "REMOTE_ADDR";
1222 if ((server_name
= getenv("SERVER_NAME")) == NULL
)
1223 server_name
= "SERVER_NAME";
1224 if ((server_port
= getenv("SERVER_PORT")) == NULL
)
1225 server_port
= "SERVER_PORT";
1227 CUPS_SRAND(time(NULL
));
1228 snprintf(buffer
, sizeof(buffer
), "%s:%s:%s:%02X%02X%02X%02X%02X%02X%02X%02X",
1229 remote_addr
, server_name
, server_port
,
1230 (unsigned)CUPS_RAND() & 255, (unsigned)CUPS_RAND() & 255,
1231 (unsigned)CUPS_RAND() & 255, (unsigned)CUPS_RAND() & 255,
1232 (unsigned)CUPS_RAND() & 255, (unsigned)CUPS_RAND() & 255,
1233 (unsigned)CUPS_RAND() & 255, (unsigned)CUPS_RAND() & 255);
1235 _cupsMD5Append(&md5
, (unsigned char *)buffer
, (int)strlen(buffer
));
1236 _cupsMD5Finish(&md5
, sum
);
1238 cgiSetCookie(CUPS_SID
, httpMD5String(sum
, sid
), "/", NULL
, 0, 0);
1240 return (cupsGetOption(CUPS_SID
, num_cookies
, cookies
));
1245 * 'cgi_sort_variables()' - Sort all form variables for faster lookup.
1249 cgi_sort_variables(void)
1255 DEBUG_puts("cgi_sort_variables: Sorting variables...");
1261 qsort(form_vars
, form_count
, sizeof(_cgi_var_t
),
1262 (int (*)(const void *, const void *))cgi_compare_variables
);
1265 DEBUG_puts("cgi_sort_variables: Sorted variable list is:");
1266 for (i
= 0; i
< form_count
; i
++)
1267 DEBUG_printf(("cgi_sort_variables: %d: %s (%d) = \"%s\" ...\n", i
,
1268 form_vars
[i
].name
, form_vars
[i
].nvalues
,
1269 form_vars
[i
].values
[0]));
1275 * 'cgi_unlink_file()' - Remove the uploaded form.
1279 cgi_unlink_file(void)
1284 * Remove the temporary file...
1287 unlink(form_file
->tempfile
);
1290 * Free memory used...
1293 free(form_file
->name
);
1294 free(form_file
->filename
);
1295 free(form_file
->mimetype
);
1304 * End of "$Id: var.c 7460 2008-04-16 02:19:54Z mike $".