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curl: make --libcurl show binary posts correctly

Reported-by: Stephan Mühlstrasser
Fixes #6031
Closes #6032
This commit is contained in:
Daniel Stenberg 2020-10-01 22:59:30 +02:00
parent 9a13f7c2a7
commit 3997b3e2a4
No known key found for this signature in database
GPG Key ID: 5CC908FDB71E12C2
3 changed files with 41 additions and 24 deletions

View File

@ -320,8 +320,10 @@ static CURLcode pre_transfer(struct GlobalConfig *global,
if(S_ISREG(fileinfo.st_mode))
uploadfilesize = fileinfo.st_size;
if(uploadfilesize != -1)
if(uploadfilesize != -1) {
struct OperationConfig *config = per->config; /* for the macro below */
my_setopt(per->curl, CURLOPT_INFILESIZE_LARGE, uploadfilesize);
}
per->input.fd = per->infd;
}
return result;

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@ -219,26 +219,34 @@ static const struct NameValue setopt_nv_CURLNONZERODEFAULTS[] = {
/* Escape string to C string syntax. Return NULL if out of memory.
* Is this correct for those wacky EBCDIC guys? */
static char *c_escape(const char *str, size_t len)
#define MAX_STRING_LENGTH_OUTPUT 2000
#define ZERO_TERMINATED -1
static char *c_escape(const char *str, curl_off_t len)
{
const char *s;
unsigned char c;
char *escaped, *e;
unsigned int cutoff = 0;
if(len == CURL_ZERO_TERMINATED)
if(len == ZERO_TERMINATED)
len = strlen(str);
/* Check for possible overflow. */
if(len > (~(size_t) 0) / 4)
return NULL;
if(len > MAX_STRING_LENGTH_OUTPUT) {
/* cap ridiculously long strings */
len = MAX_STRING_LENGTH_OUTPUT;
cutoff = 3;
}
/* Allocate space based on worst-case */
escaped = malloc(4 * len + 1);
escaped = malloc(4 * (size_t)len + 1 + cutoff);
if(!escaped)
return NULL;
e = escaped;
for(s = str; (c = *s) != '\0'; s++) {
for(s = str; len; s++, len--) {
c = *s;
if(c == '\n') {
strcpy(e, "\\n");
e += 2;
@ -266,6 +274,8 @@ static char *c_escape(const char *str, size_t len)
else
*e++ = c;
}
while(cutoff--)
*e++ = '.';
*e = '\0';
return escaped;
}
@ -404,7 +414,7 @@ static CURLcode libcurl_generate_slist(struct curl_slist *slist, int *slistno)
CLEAN1("slist%d = NULL;", *slistno);
for(; slist; slist = slist->next) {
Curl_safefree(escaped);
escaped = c_escape(slist->data, CURL_ZERO_TERMINATED);
escaped = c_escape(slist->data, ZERO_TERMINATED);
if(!escaped)
return CURLE_OUT_OF_MEMORY;
DATA3("slist%d = curl_slist_append(slist%d, \"%s\");",
@ -455,7 +465,7 @@ static CURLcode libcurl_generate_mime_part(CURL *curl,
case TOOLMIME_DATA:
#ifdef CURL_DOES_CONVERSIONS
/* Data will be set in ASCII, thus issue a comment with clear text. */
escaped = c_escape(part->data, CURL_ZERO_TERMINATED);
escaped = c_escape(part->data, ZERO_TERMINATED);
NULL_CHECK(escaped);
CODE1("/* \"%s\" */", escaped);
@ -474,7 +484,7 @@ static CURLcode libcurl_generate_mime_part(CURL *curl,
#endif
if(!ret) {
Curl_safefree(escaped);
escaped = c_escape(data, CURL_ZERO_TERMINATED);
escaped = c_escape(data, ZERO_TERMINATED);
NULL_CHECK(escaped);
CODE2("curl_mime_data(part%d, \"%s\", CURL_ZERO_TERMINATED);",
mimeno, escaped);
@ -483,7 +493,7 @@ static CURLcode libcurl_generate_mime_part(CURL *curl,
case TOOLMIME_FILE:
case TOOLMIME_FILEDATA:
escaped = c_escape(part->data, CURL_ZERO_TERMINATED);
escaped = c_escape(part->data, ZERO_TERMINATED);
NULL_CHECK(escaped);
CODE2("curl_mime_filedata(part%d, \"%s\");", mimeno, escaped);
if(part->kind == TOOLMIME_FILEDATA && !filename) {
@ -508,28 +518,28 @@ static CURLcode libcurl_generate_mime_part(CURL *curl,
if(!ret && part->encoder) {
Curl_safefree(escaped);
escaped = c_escape(part->encoder, CURL_ZERO_TERMINATED);
escaped = c_escape(part->encoder, ZERO_TERMINATED);
NULL_CHECK(escaped);
CODE2("curl_mime_encoder(part%d, \"%s\");", mimeno, escaped);
}
if(!ret && filename) {
Curl_safefree(escaped);
escaped = c_escape(filename, CURL_ZERO_TERMINATED);
escaped = c_escape(filename, ZERO_TERMINATED);
NULL_CHECK(escaped);
CODE2("curl_mime_filename(part%d, \"%s\");", mimeno, escaped);
}
if(!ret && part->name) {
Curl_safefree(escaped);
escaped = c_escape(part->name, CURL_ZERO_TERMINATED);
escaped = c_escape(part->name, ZERO_TERMINATED);
NULL_CHECK(escaped);
CODE2("curl_mime_name(part%d, \"%s\");", mimeno, escaped);
}
if(!ret && part->type) {
Curl_safefree(escaped);
escaped = c_escape(part->type, CURL_ZERO_TERMINATED);
escaped = c_escape(part->type, ZERO_TERMINATED);
NULL_CHECK(escaped);
CODE2("curl_mime_type(part%d, \"%s\");", mimeno, escaped);
}
@ -623,7 +633,8 @@ CURLcode tool_setopt_slist(CURL *curl, struct GlobalConfig *config,
/* generic setopt wrapper for all other options.
* Some type information is encoded in the tag value. */
CURLcode tool_setopt(CURL *curl, bool str, struct GlobalConfig *config,
CURLcode tool_setopt(CURL *curl, bool str, struct GlobalConfig *global,
struct OperationConfig *config,
const char *name, CURLoption tag, ...)
{
va_list arg;
@ -711,14 +722,17 @@ CURLcode tool_setopt(CURL *curl, bool str, struct GlobalConfig *config,
va_end(arg);
if(config->libcurl && !skip && !ret) {
if(global->libcurl && !skip && !ret) {
/* we only use this for real if --libcurl was used */
if(remark)
REM2("%s set to a %s", name, value);
else {
if(escape) {
escaped = c_escape(value, CURL_ZERO_TERMINATED);
curl_off_t len = ZERO_TERMINATED;
if(tag == CURLOPT_POSTFIELDS)
len = config->postfieldsize;
escaped = c_escape(value, len);
NULL_CHECK(escaped);
CODE2("curl_easy_setopt(hnd, %s, \"%s\");", name, escaped);
}

View File

@ -98,14 +98,15 @@ CURLcode tool_setopt_mimepost(CURL *curl, struct GlobalConfig *config,
CURLcode tool_setopt_slist(CURL *curl, struct GlobalConfig *config,
const char *name, CURLoption tag,
struct curl_slist *list);
CURLcode tool_setopt(CURL *curl, bool str, struct GlobalConfig *config,
CURLcode tool_setopt(CURL *curl, bool str, struct GlobalConfig *global,
struct OperationConfig *config,
const char *name, CURLoption tag, ...);
#define my_setopt(x,y,z) \
SETOPT_CHECK(tool_setopt(x, FALSE, global, #y, y, z), y)
SETOPT_CHECK(tool_setopt(x, FALSE, global, config, #y, y, z), y)
#define my_setopt_str(x,y,z) \
SETOPT_CHECK(tool_setopt(x, TRUE, global, #y, y, z), y)
SETOPT_CHECK(tool_setopt(x, TRUE, global, config, #y, y, z), y)
#define my_setopt_enum(x,y,z) \
SETOPT_CHECK(tool_setopt_enum(x, global, #y, y, setopt_nv_ ## y, z), y)
@ -122,9 +123,9 @@ CURLcode tool_setopt(CURL *curl, bool str, struct GlobalConfig *config,
#define my_setopt_slist(x,y,z) \
SETOPT_CHECK(tool_setopt_slist(x, global, #y, y, z), y)
#define res_setopt(x,y,z) tool_setopt(x, FALSE, global, #y, y, z)
#define res_setopt(x,y,z) tool_setopt(x, FALSE, global, config, #y, y, z)
#define res_setopt_str(x,y,z) tool_setopt(x, TRUE, global, #y, y, z)
#define res_setopt_str(x,y,z) tool_setopt(x, TRUE, global, config, #y, y, z)
#else /* CURL_DISABLE_LIBCURL_OPTION */