]>
git.ipfire.org Git - thirdparty/cups.git/blob - cgi-bin/var.c
2 * CGI form variable and array functions for CUPS.
4 * Copyright 2007-2015 by Apple Inc.
5 * Copyright 1997-2005 by Easy Software Products.
7 * These coded instructions, statements, and computer programs are the
8 * property of Apple Inc. and are protected by Federal copyright
9 * law. Distribution and use rights are outlined in the file "LICENSE.txt"
10 * which should have been included with this file. If this file is
11 * missing or damaged, see the license at "http://www.cups.org/".
15 * Include necessary headers...
19 #include "cgi-private.h"
20 #include <cups/http.h>
27 #define CUPS_SID "org.cups.sid"
31 * Data structure to hold all the CGI form variables and arrays...
34 typedef struct /**** Form variable structure ****/
36 const char *name
; /* Name of variable */
37 int nvalues
, /* Number of values */
38 avalues
; /* Number of values allocated */
39 const char **values
; /* Value(s) of variable */
47 static int num_cookies
= 0;/* Number of cookies */
48 static cups_option_t
*cookies
= NULL
;/* Cookies */
49 static int form_count
= 0, /* Form variable count */
50 form_alloc
= 0; /* Number of variables allocated */
51 static _cgi_var_t
*form_vars
= NULL
;
53 static cgi_file_t
*form_file
= NULL
;
61 static void cgi_add_variable(const char *name
, int element
,
63 static int cgi_compare_variables(const _cgi_var_t
*v1
,
64 const _cgi_var_t
*v2
);
65 static _cgi_var_t
*cgi_find_variable(const char *name
);
66 static void cgi_initialize_cookies(void);
67 static int cgi_initialize_get(void);
68 static int cgi_initialize_multipart(const char *boundary
);
69 static int cgi_initialize_post(void);
70 static int cgi_initialize_string(const char *data
);
71 static const char *cgi_passwd(const char *prompt
);
72 static const char *cgi_set_sid(void);
73 static void cgi_sort_variables(void);
74 static void cgi_unlink_file(void);
78 * 'cgiCheckVariables()' - Check for the presence of "required" variables.
80 * Names may be separated by spaces and/or commas.
83 int /* O - 1 if all variables present, 0 otherwise */
84 cgiCheckVariables(const char *names
) /* I - Variables to look for */
86 char name
[255], /* Current variable name */
87 *s
; /* Pointer in string */
88 const char *val
; /* Value of variable */
89 int element
; /* Array element number */
95 while (*names
!= '\0')
97 while (*names
== ' ' || *names
== ',')
100 for (s
= name
; *names
!= '\0' && *names
!= ' ' && *names
!= ','; s
++, names
++)
107 if ((s
= strrchr(name
, '-')) != NULL
)
110 element
= atoi(s
+ 1) - 1;
111 val
= cgiGetArray(name
, element
);
114 val
= cgiGetVariable(name
);
120 return (0); /* Can't be blank, either! */
128 * 'cgiClearVariables()' - Clear all form variables.
132 cgiClearVariables(void)
134 int i
, j
; /* Looping vars */
135 _cgi_var_t
*v
; /* Current variable */
138 fputs("DEBUG: cgiClearVariables called.\n", stderr
);
140 for (v
= form_vars
, i
= form_count
; i
> 0; v
++, i
--)
142 _cupsStrFree(v
->name
);
143 for (j
= 0; j
< v
->nvalues
; j
++)
145 _cupsStrFree(v
->values
[j
]);
155 * 'cgiGetArray()' - Get an element from a form array.
158 const char * /* O - Element value or NULL */
159 cgiGetArray(const char *name
, /* I - Name of array variable */
160 int element
) /* I - Element number (0 to N) */
162 _cgi_var_t
*var
; /* Pointer to variable */
165 if ((var
= cgi_find_variable(name
)) == NULL
)
168 if (element
< 0 || element
>= var
->nvalues
)
171 return (_cupsStrRetain(var
->values
[element
]));
176 * 'cgiGetCookie()' - Get a cookie value.
179 const char * /* O - Value or NULL */
180 cgiGetCookie(const char *name
) /* I - Name of cookie */
182 return (cupsGetOption(name
, num_cookies
, cookies
));
187 * 'cgiGetFile()' - Get the file (if any) that was submitted in the form.
190 const cgi_file_t
* /* O - Attached file or NULL */
198 * 'cgiGetSize()' - Get the size of a form array value.
201 int /* O - Number of elements */
202 cgiGetSize(const char *name
) /* I - Name of variable */
204 _cgi_var_t
*var
; /* Pointer to variable */
207 if ((var
= cgi_find_variable(name
)) == NULL
)
210 return (var
->nvalues
);
215 * 'cgiGetVariable()' - Get a CGI variable from the database.
217 * Returns NULL if the variable doesn't exist. If the variable is an
218 * array of values, returns the last element.
221 const char * /* O - Value of variable */
222 cgiGetVariable(const char *name
) /* I - Name of variable */
224 const _cgi_var_t
*var
; /* Returned variable */
227 var
= cgi_find_variable(name
);
231 DEBUG_printf(("cgiGetVariable(\"%s\") is returning NULL...\n", name
));
233 DEBUG_printf(("cgiGetVariable(\"%s\") is returning \"%s\"...\n", name
,
234 var
->values
[var
->nvalues
- 1]));
237 return ((var
== NULL
) ? NULL
: _cupsStrRetain(var
->values
[var
->nvalues
- 1]));
242 * 'cgiInitialize()' - Initialize the CGI variable "database".
245 int /* O - Non-zero if there was form data */
248 const char *method
, /* Form posting method */
249 *content_type
, /* Content-Type of post data */
250 *cups_sid_cookie
, /* SID cookie */
251 *cups_sid_form
; /* SID form variable */
255 * Setup a password callback for authentication...
258 cupsSetPasswordCB(cgi_passwd
);
261 * Set the locale so that times, etc. are formatted properly...
264 setlocale(LC_ALL
, "");
268 * Disable output buffering to find bugs...
271 setbuf(stdout
, NULL
);
278 cgi_initialize_cookies();
280 if ((cups_sid_cookie
= cgiGetCookie(CUPS_SID
)) == NULL
)
282 fputs("DEBUG: " CUPS_SID
" cookie not found, initializing!\n", stderr
);
283 cups_sid_cookie
= cgi_set_sid();
286 fprintf(stderr
, "DEBUG: " CUPS_SID
" cookie is \"%s\"\n", cups_sid_cookie
);
289 * Get the request method (GET or POST)...
292 method
= getenv("REQUEST_METHOD");
293 content_type
= getenv("CONTENT_TYPE");
298 * Grab form data from the corresponding location...
301 if (!_cups_strcasecmp(method
, "GET"))
302 return (cgi_initialize_get());
303 else if (!_cups_strcasecmp(method
, "POST") && content_type
)
305 const char *boundary
= strstr(content_type
, "boundary=");
310 if (content_type
&& !strncmp(content_type
, "multipart/form-data; ", 21))
312 if (!cgi_initialize_multipart(boundary
))
315 else if (!cgi_initialize_post())
318 if ((cups_sid_form
= cgiGetVariable(CUPS_SID
)) == NULL
||
319 strcmp(cups_sid_cookie
, cups_sid_form
))
322 fprintf(stderr
, "DEBUG: " CUPS_SID
" form variable is \"%s\"\n",
325 fputs("DEBUG: " CUPS_SID
" form variable is not present.\n", stderr
);
339 * 'cgiIsPOST()' - Determine whether this page was POSTed.
342 int /* O - 1 if POST, 0 if GET */
345 const char *method
; /* REQUEST_METHOD environment variable */
348 if ((method
= getenv("REQUEST_METHOD")) == NULL
)
351 return (!strcmp(method
, "POST"));
356 * 'cgiSetArray()' - Set array element N to the specified string.
358 * If the variable array is smaller than (element + 1), the intervening
359 * elements are set to NULL.
363 cgiSetArray(const char *name
, /* I - Name of variable */
364 int element
, /* I - Element number (0 to N) */
365 const char *value
) /* I - Value of variable */
367 int i
; /* Looping var */
368 _cgi_var_t
*var
; /* Returned variable */
371 if (name
== NULL
|| value
== NULL
|| element
< 0 || element
> 100000)
374 fprintf(stderr
, "DEBUG: cgiSetArray: %s[%d]=\"%s\"\n", name
, element
, value
);
376 if ((var
= cgi_find_variable(name
)) == NULL
)
378 cgi_add_variable(name
, element
, value
);
379 cgi_sort_variables();
383 if (element
>= var
->avalues
)
385 const char **temp
; /* Temporary pointer */
387 temp
= (const char **)realloc((void *)(var
->values
),
388 sizeof(char *) * (size_t)(element
+ 16));
392 var
->avalues
= element
+ 16;
396 if (element
>= var
->nvalues
)
398 for (i
= var
->nvalues
; i
< element
; i
++)
399 var
->values
[i
] = NULL
;
401 var
->nvalues
= element
+ 1;
403 else if (var
->values
[element
])
404 _cupsStrFree((char *)var
->values
[element
]);
406 var
->values
[element
] = _cupsStrAlloc(value
);
412 * 'cgiSetCookie()' - Set a cookie value.
416 cgiSetCookie(const char *name
, /* I - Name */
417 const char *value
, /* I - Value */
418 const char *path
, /* I - Path (typically "/") */
419 const char *domain
, /* I - Domain name */
420 time_t expires
, /* I - Expiration date (0 for session) */
421 int secure
) /* I - Require SSL */
423 num_cookies
= cupsAddOption(name
, value
, num_cookies
, &cookies
);
425 printf("Set-Cookie: %s=%s;", name
, value
);
427 printf(" path=%s;", path
);
429 printf(" domain=%s;", domain
);
432 char date
[256]; /* Date string */
434 printf(" expires=%s;", httpGetDateString2(expires
, date
, sizeof(date
)));
437 puts(" httponly; secure;");
444 * 'cgiSetSize()' - Set the array size.
448 cgiSetSize(const char *name
, /* I - Name of variable */
449 int size
) /* I - Number of elements (0 to N) */
451 int i
; /* Looping var */
452 _cgi_var_t
*var
; /* Returned variable */
455 if (name
== NULL
|| size
< 0 || size
> 100000)
458 if ((var
= cgi_find_variable(name
)) == NULL
)
461 if (size
>= var
->avalues
)
463 const char **temp
; /* Temporary pointer */
465 temp
= (const char **)realloc((void *)(var
->values
),
466 sizeof(char *) * (size_t)(size
+ 16));
470 var
->avalues
= size
+ 16;
474 if (size
> var
->nvalues
)
476 for (i
= var
->nvalues
; i
< size
; i
++)
477 var
->values
[i
] = NULL
;
479 else if (size
< var
->nvalues
)
481 for (i
= size
; i
< var
->nvalues
; i
++)
483 _cupsStrFree((void *)(var
->values
[i
]));
491 * 'cgiSetVariable()' - Set a CGI variable in the database.
493 * If the variable is an array, this truncates the array to a single element.
497 cgiSetVariable(const char *name
, /* I - Name of variable */
498 const char *value
) /* I - Value of variable */
500 int i
; /* Looping var */
501 _cgi_var_t
*var
; /* Returned variable */
504 if (name
== NULL
|| value
== NULL
)
507 fprintf(stderr
, "cgiSetVariable: %s=\"%s\"\n", name
, value
);
509 if ((var
= cgi_find_variable(name
)) == NULL
)
511 cgi_add_variable(name
, 0, value
);
512 cgi_sort_variables();
516 for (i
= 0; i
< var
->nvalues
; i
++)
518 _cupsStrFree((char *)var
->values
[i
]);
520 var
->values
[0] = _cupsStrAlloc(value
);
527 * 'cgi_add_variable()' - Add a form variable.
531 cgi_add_variable(const char *name
, /* I - Variable name */
532 int element
, /* I - Array element number */
533 const char *value
) /* I - Variable value */
535 _cgi_var_t
*var
; /* New variable */
538 if (name
== NULL
|| value
== NULL
|| element
< 0 || element
> 100000)
541 DEBUG_printf(("cgi_add_variable: Adding variable \'%s\' with value "
542 "\'%s\'...\n", name
, value
));
544 if (form_count
>= form_alloc
)
546 _cgi_var_t
*temp_vars
; /* Temporary form pointer */
550 temp_vars
= malloc(sizeof(_cgi_var_t
) * 16);
552 temp_vars
= realloc(form_vars
, (size_t)(form_alloc
+ 16) * sizeof(_cgi_var_t
));
557 form_vars
= temp_vars
;
561 var
= form_vars
+ form_count
;
563 if ((var
->values
= calloc((size_t)element
+ 1, sizeof(char *))) == NULL
)
566 var
->name
= _cupsStrAlloc(name
);
567 var
->nvalues
= element
+ 1;
568 var
->avalues
= element
+ 1;
569 var
->values
[element
] = _cupsStrAlloc(value
);
576 * 'cgi_compare_variables()' - Compare two variables.
579 static int /* O - Result of comparison */
580 cgi_compare_variables(
581 const _cgi_var_t
*v1
, /* I - First variable */
582 const _cgi_var_t
*v2
) /* I - Second variable */
584 return (_cups_strcasecmp(v1
->name
, v2
->name
));
589 * 'cgi_find_variable()' - Find a variable.
592 static _cgi_var_t
* /* O - Variable pointer or NULL */
593 cgi_find_variable(const char *name
) /* I - Name of variable */
595 _cgi_var_t key
; /* Search key */
598 if (form_count
< 1 || name
== NULL
)
603 return ((_cgi_var_t
*)bsearch(&key
, form_vars
, (size_t)form_count
, sizeof(_cgi_var_t
),
604 (int (*)(const void *, const void *))cgi_compare_variables
));
609 * 'cgi_initialize_cookies()' - Initialize cookies.
613 cgi_initialize_cookies(void)
615 const char *cookie
; /* HTTP_COOKIE environment variable */
616 char name
[128], /* Name string */
617 value
[512], /* Value string */
618 *ptr
; /* Pointer into name/value */
621 if ((cookie
= getenv("HTTP_COOKIE")) == NULL
)
626 int skip
= 0; /* Skip this cookie? */
629 * Skip leading whitespace...
632 while (isspace(*cookie
& 255))
641 for (ptr
= name
; *cookie
&& *cookie
!= '=';)
642 if (ptr
< (name
+ sizeof(name
) - 1))
664 for (cookie
++, ptr
= value
; *cookie
&& *cookie
!= '\"';)
665 if (ptr
< (value
+ sizeof(value
) - 1))
682 for (ptr
= value
; *cookie
&& *cookie
!= ';';)
683 if (ptr
< (value
+ sizeof(value
) - 1))
702 * Then add the cookie to an array as long as the name doesn't start with
706 if (name
[0] != '$' && !skip
)
707 num_cookies
= cupsAddOption(name
, value
, num_cookies
, &cookies
);
713 * 'cgi_initialize_get()' - Initialize form variables using the GET method.
716 static int /* O - 1 if form data read */
717 cgi_initialize_get(void)
719 char *data
; /* Pointer to form data string */
722 DEBUG_puts("cgi_initialize_get: Initializing variables using GET method...");
725 * Check to see if there is anything for us to read...
728 data
= getenv("QUERY_STRING");
729 if (data
== NULL
|| strlen(data
) == 0)
733 * Parse it out and return...
736 return (cgi_initialize_string(data
));
741 * 'cgi_initialize_multipart()' - Initialize variables and file using the POST
744 * TODO: Update to support files > 2GB.
747 static int /* O - 1 if form data was read */
748 cgi_initialize_multipart(
749 const char *boundary
) /* I - Boundary string */
751 char line
[10240], /* MIME header line */
752 name
[1024], /* Form variable name */
753 filename
[1024], /* Form filename */
754 mimetype
[1024], /* MIME media type */
755 bstring
[256], /* Boundary string to look for */
756 *ptr
, /* Pointer into name/filename */
757 *end
; /* End of buffer */
758 int ch
, /* Character from file */
759 fd
; /* Temporary file descriptor */
760 size_t blen
; /* Length of boundary string */
763 DEBUG_printf(("cgi_initialize_multipart(boundary=\"%s\")\n", boundary
));
766 * Read multipart form data until we run out...
773 snprintf(bstring
, sizeof(bstring
), "\r\n--%s", boundary
);
774 blen
= strlen(bstring
);
776 while (fgets(line
, sizeof(line
), stdin
))
778 if (!strcmp(line
, "\r\n"))
781 * End of headers, grab value...
787 * Read an embedded file...
793 * Remove previous file...
800 * Allocate memory for the new file...
803 if ((form_file
= calloc(1, sizeof(cgi_file_t
))) == NULL
)
806 form_file
->name
= strdup(name
);
807 form_file
->filename
= strdup(filename
);
808 form_file
->mimetype
= strdup(mimetype
);
810 fd
= cupsTempFd(form_file
->tempfile
, sizeof(form_file
->tempfile
));
815 atexit(cgi_unlink_file
);
818 * Copy file data to the temp file...
823 while ((ch
= getchar()) != EOF
)
827 if ((size_t)(ptr
- line
) >= blen
&& !memcmp(ptr
- blen
, bstring
, blen
))
833 if ((ptr
- line
- (int)blen
) >= 8192)
836 * Write out the first 8k of the buffer...
839 write(fd
, line
, 8192);
840 memmove(line
, line
+ 8192, (size_t)(ptr
- line
- 8192));
846 * Write the rest of the data and close the temp file...
850 write(fd
, line
, (size_t)(ptr
- line
));
857 * Just get a form variable; the current code only handles
858 * form values up to 10k in size...
862 end
= line
+ sizeof(line
) - 1;
864 while ((ch
= getchar()) != EOF
)
869 if ((size_t)(ptr
- line
) >= blen
&& !memcmp(ptr
- blen
, bstring
, blen
))
879 * Set the form variable...
882 if ((ptr
= strrchr(name
, '-')) != NULL
&& isdigit(ptr
[1] & 255))
885 * Set a specific index in the array...
890 cgiSetArray(name
, atoi(ptr
) - 1, line
);
892 else if (cgiGetVariable(name
))
895 * Add another element in the array...
898 cgiSetArray(name
, cgiGetSize(name
), line
);
903 * Just set the line...
906 cgiSetVariable(name
, line
);
911 * Read the rest of the current line...
914 fgets(line
, sizeof(line
), stdin
);
917 * Clear the state vars...
924 else if (!_cups_strncasecmp(line
, "Content-Disposition:", 20))
926 if ((ptr
= strstr(line
+ 20, " name=\"")) != NULL
)
928 strlcpy(name
, ptr
+ 7, sizeof(name
));
930 if ((ptr
= strchr(name
, '\"')) != NULL
)
934 if ((ptr
= strstr(line
+ 20, " filename=\"")) != NULL
)
936 strlcpy(filename
, ptr
+ 11, sizeof(filename
));
938 if ((ptr
= strchr(filename
, '\"')) != NULL
)
942 else if (!_cups_strncasecmp(line
, "Content-Type:", 13))
944 for (ptr
= line
+ 13; isspace(*ptr
& 255); ptr
++);
946 strlcpy(mimetype
, ptr
, sizeof(mimetype
));
948 for (ptr
= mimetype
+ strlen(mimetype
) - 1;
949 ptr
> mimetype
&& isspace(*ptr
& 255);
955 * Return 1 for "form data found"...
963 * 'cgi_initialize_post()' - Initialize variables using the POST method.
966 static int /* O - 1 if form data was read */
967 cgi_initialize_post(void)
969 char *content_length
, /* Length of input data (string) */
970 *data
; /* Pointer to form data string */
971 size_t length
, /* Length of input data */
972 tbytes
; /* Total number of bytes read */
973 ssize_t nbytes
; /* Number of bytes read this read() */
974 int status
; /* Return status */
977 DEBUG_puts("cgi_initialize_post: Initializing variables using POST method...");
980 * Check to see if there is anything for us to read...
983 content_length
= getenv("CONTENT_LENGTH");
984 if (content_length
== NULL
|| atoi(content_length
) <= 0)
988 * Get the length of the input stream and allocate a buffer for it...
991 length
= (size_t)strtol(content_length
, NULL
, 10);
992 data
= malloc(length
+ 1);
998 * Read the data into the buffer...
1001 for (tbytes
= 0; tbytes
< length
; tbytes
+= (size_t)nbytes
)
1002 if ((nbytes
= read(0, data
+ tbytes
, (size_t)(length
- tbytes
))) < 0)
1004 if (errno
!= EAGAIN
)
1012 else if (nbytes
== 0)
1015 * CUPS STR #3176: OpenBSD: Early end-of-file on POST data causes 100% CPU
1017 * This should never happen, but does on OpenBSD. If we see early end-of-
1018 * file, treat this as an error and process no data.
1025 data
[length
] = '\0';
1031 status
= cgi_initialize_string(data
);
1034 * Free the data and return...
1044 * 'cgi_initialize_string()' - Initialize form variables from a string.
1047 static int /* O - 1 if form data was processed */
1048 cgi_initialize_string(const char *data
) /* I - Form data string */
1050 int done
; /* True if we're done reading a form variable */
1051 char *s
, /* Pointer to current form string */
1052 ch
, /* Temporary character */
1053 name
[255], /* Name of form variable */
1054 value
[65536]; /* Variable value */
1065 * Loop until we've read all the form data...
1068 while (*data
!= '\0')
1071 * Get the variable name...
1074 for (s
= name
; *data
!= '\0'; data
++)
1077 else if (*data
>= ' ' && s
< (name
+ sizeof(name
) - 1))
1087 * Read the variable value...
1090 for (s
= value
, done
= 0; !done
&& *data
!= '\0'; data
++)
1093 case '&' : /* End of data... */
1097 case '+' : /* Escaped space character */
1098 if (s
< (value
+ sizeof(value
) - 1))
1102 case '%' : /* Escaped control character */
1104 * Read the hex code...
1107 if (!isxdigit(data
[1] & 255) || !isxdigit(data
[2] & 255))
1110 if (s
< (value
+ sizeof(value
) - 1))
1116 *s
= (char)(ch
<< 4);
1128 default : /* Other characters come straight through */
1129 if (*data
>= ' ' && s
< (value
+ sizeof(value
) - 1))
1134 *s
= '\0'; /* nul terminate the string */
1137 * Remove trailing whitespace...
1143 while (s
>= value
&& isspace(*s
& 255))
1147 * Add the string to the variable "database"...
1150 if ((s
= strrchr(name
, '-')) != NULL
&& isdigit(s
[1] & 255))
1154 cgiSetArray(name
, atoi(s
) - 1, value
);
1156 else if (cgiGetVariable(name
) != NULL
)
1157 cgiSetArray(name
, cgiGetSize(name
), value
);
1159 cgiSetVariable(name
, value
);
1167 * 'cgi_passwd()' - Catch authentication requests and notify the server.
1169 * This function sends a Status header and exits, forcing authentication
1173 static const char * /* O - NULL (no return) */
1174 cgi_passwd(const char *prompt
) /* I - Prompt (not used) */
1178 fprintf(stderr
, "DEBUG: cgi_passwd(prompt=\"%s\") called!\n",
1179 prompt
? prompt
: "(null)");
1182 * Send a 401 (unauthorized) status to the server, so it can notify
1183 * the client that authentication is required.
1186 puts("Status: 401\n");
1190 * This code is never executed, but is present to satisfy the compiler.
1198 * 'cgi_set_sid()' - Set the CUPS session ID.
1201 static const char * /* O - New session ID */
1204 char buffer
[512], /* SID data */
1205 sid
[33]; /* SID string */
1206 unsigned char sum
[16]; /* MD5 sum */
1207 const char *remote_addr
, /* REMOTE_ADDR */
1208 *server_name
, /* SERVER_NAME */
1209 *server_port
; /* SERVER_PORT */
1210 struct timeval curtime
; /* Current time */
1213 if ((remote_addr
= getenv("REMOTE_ADDR")) == NULL
)
1214 remote_addr
= "REMOTE_ADDR";
1215 if ((server_name
= getenv("SERVER_NAME")) == NULL
)
1216 server_name
= "SERVER_NAME";
1217 if ((server_port
= getenv("SERVER_PORT")) == NULL
)
1218 server_port
= "SERVER_PORT";
1220 gettimeofday(&curtime
, NULL
);
1221 CUPS_SRAND(curtime
.tv_sec
+ curtime
.tv_usec
);
1222 snprintf(buffer
, sizeof(buffer
), "%s:%s:%s:%02X%02X%02X%02X%02X%02X%02X%02X",
1223 remote_addr
, server_name
, server_port
,
1224 (unsigned)CUPS_RAND() & 255, (unsigned)CUPS_RAND() & 255,
1225 (unsigned)CUPS_RAND() & 255, (unsigned)CUPS_RAND() & 255,
1226 (unsigned)CUPS_RAND() & 255, (unsigned)CUPS_RAND() & 255,
1227 (unsigned)CUPS_RAND() & 255, (unsigned)CUPS_RAND() & 255);
1228 cupsHashData("md5", (unsigned char *)buffer
, strlen(buffer
), sum
, sizeof(sum
));
1230 cgiSetCookie(CUPS_SID
, cupsHashString(sum
, sizeof(sum
), sid
, sizeof(sid
)), "/", NULL
, 0, 0);
1232 return (cupsGetOption(CUPS_SID
, num_cookies
, cookies
));
1237 * 'cgi_sort_variables()' - Sort all form variables for faster lookup.
1241 cgi_sort_variables(void)
1247 DEBUG_puts("cgi_sort_variables: Sorting variables...");
1253 qsort(form_vars
, (size_t)form_count
, sizeof(_cgi_var_t
),
1254 (int (*)(const void *, const void *))cgi_compare_variables
);
1257 DEBUG_puts("cgi_sort_variables: Sorted variable list is:");
1258 for (i
= 0; i
< form_count
; i
++)
1259 DEBUG_printf(("cgi_sort_variables: %d: %s (%d) = \"%s\" ...\n", i
,
1260 form_vars
[i
].name
, form_vars
[i
].nvalues
,
1261 form_vars
[i
].values
[0]));
1267 * 'cgi_unlink_file()' - Remove the uploaded form.
1271 cgi_unlink_file(void)
1276 * Remove the temporary file...
1279 unlink(form_file
->tempfile
);
1282 * Free memory used...
1285 free(form_file
->name
);
1286 free(form_file
->filename
);
1287 free(form_file
->mimetype
);