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curl_formadd() now returns 'CURLFORMcode' instead of int, to better enable 

checking for particular errors. curl/curl.h defines the errros
This commit is contained in:
Daniel Stenberg 2002-05-21 07:44:27 +00:00
parent fe3ba1dd11
commit 5d2944c211
2 changed files with 73 additions and 58 deletions
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30
include/curl/curl.h
View File

@ -656,7 +656,35 @@ struct curl_forms {
};
/* use this for multipart formpost building */
int curl_formadd(struct curl_httppost **httppost,
/* Returns code for curl_formadd()
*
* Returns:
* CURL_FORMADD_OK on success
* CURL_FORMADD_MEMORY if the FormInfo allocation fails
* CURL_FORMADD_OPTION_TWICE if one option is given twice for one Form
* CURL_FORMADD_NULL if a null pointer was given for a char
* CURL_FORMADD_MEMORY if the allocation of a FormInfo struct failed
* CURL_FORMADD_UNKNOWN_OPTION if an unknown option was used
* CURL_FORMADD_INCOMPLETE if the some FormInfo is not complete (or error)
* CURL_FORMADD_MEMORY if a HttpPost struct cannot be allocated
* CURL_FORMADD_MEMORY if some allocation for string copying failed.
* CURL_FORMADD_ILLEGAL_ARRAY if an illegal option is used in an array
*
***************************************************************************/
typedef enum {
CURL_FORMADD_OK, /* first, no error */
CURL_FORMADD_MEMORY,
CURL_FORMADD_OPTION_TWICE,
CURL_FORMADD_NULL,
CURL_FORMADD_UNKNOWN_OPTION,
CURL_FORMADD_INCOMPLETE,
CURL_FORMADD_ILLEGAL_ARRAY,
CURL_FORMADD_LAST /* last */
} CURLFORMcode;
CURLFORMcode curl_formadd(struct curl_httppost **httppost,
struct curl_httppost **last_post,
...);

101
lib/formdata.c
View File

@ -602,39 +602,26 @@ static int AllocAndCopy (char **buffer, int buffer_length)
* CURLFORM_FILE, "filename1", CURLFORM_FILE, "filename2", CURLFORM_END);
*
* Returns:
* FORMADD_OK on success
* FORMADD_MEMORY if the FormInfo allocation fails
* FORMADD_OPTION_TWICE if one option is given twice for one Form
* FORMADD_NULL if a null pointer was given for a char
* FORMADD_MEMORY if the allocation of a FormInfo struct failed
* FORMADD_UNKNOWN_OPTION if an unknown option was used
* FORMADD_INCOMPLETE if the some FormInfo is not complete (or an error)
* FORMADD_MEMORY if a HttpPost struct cannot be allocated
* FORMADD_MEMORY if some allocation for string copying failed.
* FORMADD_ILLEGAL_ARRAY if an illegal option is used in an array
* CURL_FORMADD_OK on success
* CURL_FORMADD_MEMORY if the FormInfo allocation fails
* CURL_FORMADD_OPTION_TWICE if one option is given twice for one Form
* CURL_FORMADD_NULL if a null pointer was given for a char
* CURL_FORMADD_MEMORY if the allocation of a FormInfo struct failed
* CURL_FORMADD_UNKNOWN_OPTION if an unknown option was used
* CURL_FORMADD_INCOMPLETE if the some FormInfo is not complete (or an error)
* CURL_FORMADD_MEMORY if a HttpPost struct cannot be allocated
* CURL_FORMADD_MEMORY if some allocation for string copying failed.
* CURL_FORMADD_ILLEGAL_ARRAY if an illegal option is used in an array
*
***************************************************************************/
typedef enum {
FORMADD_OK, /* first, no error */
FORMADD_MEMORY,
FORMADD_OPTION_TWICE,
FORMADD_NULL,
FORMADD_UNKNOWN_OPTION,
FORMADD_INCOMPLETE,
FORMADD_ILLEGAL_ARRAY,
FORMADD_LAST /* last */
} FORMcode;
static
FORMcode FormAdd(struct curl_httppost **httppost,
struct curl_httppost **last_post,
va_list params)
CURLFORMcode FormAdd(struct curl_httppost **httppost,
struct curl_httppost **last_post,
va_list params)
{
FormInfo *first_form, *current_form, *form;
FORMcode return_value = FORMADD_OK;
CURLFORMcode return_value = CURL_FORMADD_OK;
const char *prevtype = NULL;
struct curl_httppost *post = NULL;
CURLformoption option;
@ -655,7 +642,7 @@ FORMcode FormAdd(struct curl_httppost **httppost,
current_form = first_form;
}
else
return FORMADD_MEMORY;
return CURL_FORMADD_MEMORY;
/*
* Loop through all the options set.
@ -663,7 +650,7 @@ FORMcode FormAdd(struct curl_httppost **httppost,
while (1) {
/* break if we have an error to report */
if (return_value != FORMADD_OK)
if (return_value != CURL_FORMADD_OK)
break;
/* first see if we have more parts of the array param */
@ -690,13 +677,13 @@ FORMcode FormAdd(struct curl_httppost **httppost,
case CURLFORM_ARRAY:
if(array_state)
/* we don't support an array from within an array */
return_value = FORMADD_ILLEGAL_ARRAY;
return_value = CURL_FORMADD_ILLEGAL_ARRAY;
else {
forms = va_arg(params, struct curl_forms *);
if (forms)
array_state = TRUE;
else
return_value = FORMADD_NULL;
return_value = CURL_FORMADD_NULL;
}
break;
@ -707,19 +694,19 @@ FORMcode FormAdd(struct curl_httppost **httppost,
current_form->flags |= HTTPPOST_PTRNAME; /* fall through */
case CURLFORM_COPYNAME:
if (current_form->name)
return_value = FORMADD_OPTION_TWICE;
return_value = CURL_FORMADD_OPTION_TWICE;
else {
char *name = array_state?
array_value:va_arg(params, char *);
if (name)
current_form->name = name; /* store for the moment */
else
return_value = FORMADD_NULL;
return_value = CURL_FORMADD_NULL;
}
break;
case CURLFORM_NAMELENGTH:
if (current_form->namelength)
return_value = FORMADD_OPTION_TWICE;
return_value = CURL_FORMADD_OPTION_TWICE;
else
current_form->namelength =
array_state?(long)array_value:va_arg(params, long);
@ -732,19 +719,19 @@ FORMcode FormAdd(struct curl_httppost **httppost,
current_form->flags |= HTTPPOST_PTRCONTENTS; /* fall through */
case CURLFORM_COPYCONTENTS:
if (current_form->value)
return_value = FORMADD_OPTION_TWICE;
return_value = CURL_FORMADD_OPTION_TWICE;
else {
char *value =
array_state?array_value:va_arg(params, char *);
if (value)
current_form->value = value; /* store for the moment */
else
return_value = FORMADD_NULL;
return_value = CURL_FORMADD_NULL;
}
break;
case CURLFORM_CONTENTSLENGTH:
if (current_form->contentslength)
return_value = FORMADD_OPTION_TWICE;
return_value = CURL_FORMADD_OPTION_TWICE;
else
current_form->contentslength =
array_state?(long)array_value:va_arg(params, long);
@ -753,7 +740,7 @@ FORMcode FormAdd(struct curl_httppost **httppost,
/* Get contents from a given file name */
case CURLFORM_FILECONTENT:
if (current_form->flags != 0)
return_value = FORMADD_OPTION_TWICE;
return_value = CURL_FORMADD_OPTION_TWICE;
else {
char *filename = array_state?
array_value:va_arg(params, char *);
@ -762,7 +749,7 @@ FORMcode FormAdd(struct curl_httppost **httppost,
current_form->flags |= HTTPPOST_READFILE;
}
else
return_value = FORMADD_NULL;
return_value = CURL_FORMADD_NULL;
}
break;
@ -777,19 +764,19 @@ FORMcode FormAdd(struct curl_httppost **httppost,
if (filename) {
if (!(current_form = AddFormInfo(strdup(filename),
NULL, current_form)))
return_value = FORMADD_MEMORY;
return_value = CURL_FORMADD_MEMORY;
}
else
return_value = FORMADD_NULL;
return_value = CURL_FORMADD_NULL;
}
else
return_value = FORMADD_OPTION_TWICE;
return_value = CURL_FORMADD_OPTION_TWICE;
}
else {
if (filename)
current_form->value = strdup(filename);
else
return_value = FORMADD_NULL;
return_value = CURL_FORMADD_NULL;
current_form->flags |= HTTPPOST_FILENAME;
}
break;
@ -804,19 +791,19 @@ FORMcode FormAdd(struct curl_httppost **httppost,
if (!(current_form = AddFormInfo(NULL,
strdup(contenttype),
current_form)))
return_value = FORMADD_MEMORY;
return_value = CURL_FORMADD_MEMORY;
}
else
return_value = FORMADD_NULL;
return_value = CURL_FORMADD_NULL;
}
else
return_value = FORMADD_OPTION_TWICE;
return_value = CURL_FORMADD_OPTION_TWICE;
}
else {
if (contenttype)
current_form->contenttype = strdup(contenttype);
else
return_value = FORMADD_NULL;
return_value = CURL_FORMADD_NULL;
}
break;
}
@ -829,7 +816,7 @@ FORMcode FormAdd(struct curl_httppost **httppost,
va_arg(params, struct curl_slist*);
if( current_form->contentheader )
return_value = FORMADD_OPTION_TWICE;
return_value = CURL_FORMADD_OPTION_TWICE;
else
current_form->contentheader = list;
@ -840,17 +827,17 @@ FORMcode FormAdd(struct curl_httppost **httppost,
char *filename = array_state?array_value:
va_arg(params, char *);
if( current_form->showfilename )
return_value = FORMADD_OPTION_TWICE;
return_value = CURL_FORMADD_OPTION_TWICE;
else
current_form->showfilename = strdup(filename);
break;
}
default:
return_value = FORMADD_UNKNOWN_OPTION;
return_value = CURL_FORMADD_UNKNOWN_OPTION;
}
}
if(FORMADD_OK == return_value) {
if(CURL_FORMADD_OK == return_value) {
/* go through the list, check for copleteness and if everything is
* alright add the HttpPost item otherwise set return_value accordingly */
@ -866,7 +853,7 @@ FORMcode FormAdd(struct curl_httppost **httppost,
( (form->flags & HTTPPOST_READFILE) &&
(form->flags & HTTPPOST_PTRCONTENTS) )
) {
return_value = FORMADD_INCOMPLETE;
return_value = CURL_FORMADD_INCOMPLETE;
break;
}
else {
@ -880,7 +867,7 @@ FORMcode FormAdd(struct curl_httppost **httppost,
(form == first_form) ) {
/* copy name (without strdup; possibly contains null characters) */
if (AllocAndCopy(&form->name, form->namelength)) {
return_value = FORMADD_MEMORY;
return_value = CURL_FORMADD_MEMORY;
break;
}
}
@ -889,7 +876,7 @@ FORMcode FormAdd(struct curl_httppost **httppost,
!(form->flags & HTTPPOST_PTRCONTENTS) ) {
/* copy value (without strdup; possibly contains null characters) */
if (AllocAndCopy(&form->value, form->contentslength)) {
return_value = FORMADD_MEMORY;
return_value = CURL_FORMADD_MEMORY;
break;
}
}
@ -901,7 +888,7 @@ FORMcode FormAdd(struct curl_httppost **httppost,
last_post);
if(!post)
return_value = FORMADD_MEMORY;
return_value = CURL_FORMADD_MEMORY;
if (form->contenttype)
prevtype = form->contenttype;
@ -922,12 +909,12 @@ FORMcode FormAdd(struct curl_httppost **httppost,
return return_value;
}
int curl_formadd(struct curl_httppost **httppost,
CURLFORMcode curl_formadd(struct curl_httppost **httppost,
struct curl_httppost **last_post,
...)
{
va_list arg;
int result;
CURLFORMcode result;
va_start(arg, last_post);
result = FormAdd(httppost, last_post, arg);
va_end(arg);