-/* asn_mime.c */
-/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+/*
+ * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
* project.
*/
/* ====================================================================
* are met:
*
* 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
#include <stdio.h>
#include <ctype.h>
-#include "cryptlib.h"
+#include "internal/cryptlib.h"
#include <openssl/rand.h>
#include <openssl/x509.h>
#include <openssl/asn1.h>
#include <openssl/asn1t.h>
+#include "internal/evp_int.h"
#include "asn1_locl.h"
-/* Generalised MIME like utilities for streaming ASN1. Although many
- * have a PKCS7/CMS like flavour others are more general purpose.
+/*
+ * Generalised MIME like utilities for streaming ASN1. Although many have a
+ * PKCS7/CMS like flavour others are more general purpose.
*/
-/* MIME format structures
- * Note that all are translated to lower case apart from
- * parameter values. Quotes are stripped off
+/*
+ * MIME format structures Note that all are translated to lower case apart
+ * from parameter values. Quotes are stripped off
*/
-typedef struct {
-char *param_name; /* Param name e.g. "micalg" */
-char *param_value; /* Param value e.g. "sha1" */
-} MIME_PARAM;
+struct mime_param_st {
+ char *param_name; /* Param name e.g. "micalg" */
+ char *param_value; /* Param value e.g. "sha1" */
+};
-DECLARE_STACK_OF(MIME_PARAM)
-IMPLEMENT_STACK_OF(MIME_PARAM)
-
-typedef struct {
-char *name; /* Name of line e.g. "content-type" */
-char *value; /* Value of line e.g. "text/plain" */
-STACK_OF(MIME_PARAM) *params; /* Zero or more parameters */
-} MIME_HEADER;
-
-DECLARE_STACK_OF(MIME_HEADER)
-IMPLEMENT_STACK_OF(MIME_HEADER)
+struct mime_header_st {
+ char *name; /* Name of line e.g. "content-type" */
+ char *value; /* Value of line e.g. "text/plain" */
+ STACK_OF(MIME_PARAM) *params; /* Zero or more parameters */
+};
static int asn1_output_data(BIO *out, BIO *data, ASN1_VALUE *val, int flags,
- const ASN1_ITEM *it);
-static char * strip_ends(char *name);
-static char * strip_start(char *name);
-static char * strip_end(char *name);
+ const ASN1_ITEM *it);
+static char *strip_ends(char *name);
+static char *strip_start(char *name);
+static char *strip_end(char *name);
static MIME_HEADER *mime_hdr_new(char *name, char *value);
static int mime_hdr_addparam(MIME_HEADER *mhdr, char *name, char *value);
static STACK_OF(MIME_HEADER) *mime_parse_hdr(BIO *bio);
-static int mime_hdr_cmp(const MIME_HEADER * const *a,
- const MIME_HEADER * const *b);
-static int mime_param_cmp(const MIME_PARAM * const *a,
- const MIME_PARAM * const *b);
+static int mime_hdr_cmp(const MIME_HEADER *const *a,
+ const MIME_HEADER *const *b);
+static int mime_param_cmp(const MIME_PARAM *const *a,
+ const MIME_PARAM *const *b);
static void mime_param_free(MIME_PARAM *param);
static int mime_bound_check(char *line, int linelen, char *bound, int blen);
static int multi_split(BIO *bio, char *bound, STACK_OF(BIO) **ret);
static void mime_hdr_free(MIME_HEADER *hdr);
#define MAX_SMLEN 1024
-#define mime_debug(x) /* x */
+#define mime_debug(x) /* x */
/* Output an ASN1 structure in BER format streaming if necessary */
int i2d_ASN1_bio_stream(BIO *out, ASN1_VALUE *val, BIO *in, int flags,
- const ASN1_ITEM *it)
- {
- /* If streaming create stream BIO and copy all content through it */
- if (flags & SMIME_STREAM)
- {
- BIO *bio, *tbio;
- bio = BIO_new_NDEF(out, val, it);
- if (!bio)
- {
- ASN1err(ASN1_F_I2D_ASN1_BIO_STREAM,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- SMIME_crlf_copy(in, bio, flags);
- (void)BIO_flush(bio);
- /* Free up successive BIOs until we hit the old output BIO */
- do
- {
- tbio = BIO_pop(bio);
- BIO_free(bio);
- bio = tbio;
- } while (bio != out);
- }
- /* else just write out ASN1 structure which will have all content
- * stored internally
- */
- else
- ASN1_item_i2d_bio(it, out, val);
- return 1;
- }
+ const ASN1_ITEM *it)
+{
+ /* If streaming create stream BIO and copy all content through it */
+ if (flags & SMIME_STREAM) {
+ BIO *bio, *tbio;
+ bio = BIO_new_NDEF(out, val, it);
+ if (!bio) {
+ ASN1err(ASN1_F_I2D_ASN1_BIO_STREAM, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ SMIME_crlf_copy(in, bio, flags);
+ (void)BIO_flush(bio);
+ /* Free up successive BIOs until we hit the old output BIO */
+ do {
+ tbio = BIO_pop(bio);
+ BIO_free(bio);
+ bio = tbio;
+ } while (bio != out);
+ }
+ /*
+ * else just write out ASN1 structure which will have all content stored
+ * internally
+ */
+ else
+ ASN1_item_i2d_bio(it, out, val);
+ return 1;
+}
/* Base 64 read and write of ASN1 structure */
static int B64_write_ASN1(BIO *out, ASN1_VALUE *val, BIO *in, int flags,
- const ASN1_ITEM *it)
- {
- BIO *b64;
- int r;
- b64 = BIO_new(BIO_f_base64());
- if(!b64)
- {
- ASN1err(ASN1_F_B64_WRITE_ASN1,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- /* prepend the b64 BIO so all data is base64 encoded.
- */
- out = BIO_push(b64, out);
- r = i2d_ASN1_bio_stream(out, val, in, flags, it);
- (void)BIO_flush(out);
- BIO_pop(out);
- BIO_free(b64);
- return r;
- }
+ const ASN1_ITEM *it)
+{
+ BIO *b64;
+ int r;
+ b64 = BIO_new(BIO_f_base64());
+ if (b64 == NULL) {
+ ASN1err(ASN1_F_B64_WRITE_ASN1, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ /*
+ * prepend the b64 BIO so all data is base64 encoded.
+ */
+ out = BIO_push(b64, out);
+ r = i2d_ASN1_bio_stream(out, val, in, flags, it);
+ (void)BIO_flush(out);
+ BIO_pop(out);
+ BIO_free(b64);
+ return r;
+}
/* Streaming ASN1 PEM write */
int PEM_write_bio_ASN1_stream(BIO *out, ASN1_VALUE *val, BIO *in, int flags,
- const char *hdr,
- const ASN1_ITEM *it)
- {
- int r;
- BIO_printf(out, "-----BEGIN %s-----\n", hdr);
- r = B64_write_ASN1(out, val, in, flags, it);
- BIO_printf(out, "-----END %s-----\n", hdr);
- return r;
- }
+ const char *hdr, const ASN1_ITEM *it)
+{
+ int r;
+ BIO_printf(out, "-----BEGIN %s-----\n", hdr);
+ r = B64_write_ASN1(out, val, in, flags, it);
+ BIO_printf(out, "-----END %s-----\n", hdr);
+ return r;
+}
static ASN1_VALUE *b64_read_asn1(BIO *bio, const ASN1_ITEM *it)
{
- BIO *b64;
- ASN1_VALUE *val;
- if(!(b64 = BIO_new(BIO_f_base64()))) {
- ASN1err(ASN1_F_B64_READ_ASN1,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- bio = BIO_push(b64, bio);
- val = ASN1_item_d2i_bio(it, bio, NULL);
- if(!val)
- ASN1err(ASN1_F_B64_READ_ASN1,ASN1_R_DECODE_ERROR);
- (void)BIO_flush(bio);
- bio = BIO_pop(bio);
- BIO_free(b64);
- return val;
+ BIO *b64;
+ ASN1_VALUE *val;
+
+ if ((b64 = BIO_new(BIO_f_base64())) == NULL) {
+ ASN1err(ASN1_F_B64_READ_ASN1, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ bio = BIO_push(b64, bio);
+ val = ASN1_item_d2i_bio(it, bio, NULL);
+ if (!val)
+ ASN1err(ASN1_F_B64_READ_ASN1, ASN1_R_DECODE_ERROR);
+ (void)BIO_flush(bio);
+ bio = BIO_pop(bio);
+ BIO_free(b64);
+ return val;
}
/* Generate the MIME "micalg" parameter from RFC3851, RFC4490 */
static int asn1_write_micalg(BIO *out, STACK_OF(X509_ALGOR) *mdalgs)
- {
- const EVP_MD *md;
- int i, have_unknown = 0, write_comma, ret = 0, md_nid;
- have_unknown = 0;
- write_comma = 0;
- for (i = 0; i < sk_X509_ALGOR_num(mdalgs); i++)
- {
- if (write_comma)
- BIO_write(out, ",", 1);
- write_comma = 1;
- md_nid = OBJ_obj2nid(sk_X509_ALGOR_value(mdalgs, i)->algorithm);
- md = EVP_get_digestbynid(md_nid);
- if (md && md->md_ctrl)
- {
- int rv;
- char *micstr;
- rv = md->md_ctrl(NULL, EVP_MD_CTRL_MICALG, 0, &micstr);
- if (rv > 0)
- {
- BIO_puts(out, micstr);
- OPENSSL_free(micstr);
- continue;
- }
- if (rv != -2)
- goto err;
- }
- switch(md_nid)
- {
- case NID_sha1:
- BIO_puts(out, "sha1");
- break;
-
- case NID_md5:
- BIO_puts(out, "md5");
- break;
-
- case NID_sha256:
- BIO_puts(out, "sha-256");
- break;
-
- case NID_sha384:
- BIO_puts(out, "sha-384");
- break;
-
- case NID_sha512:
- BIO_puts(out, "sha-512");
- break;
-
- case NID_id_GostR3411_94:
- BIO_puts(out, "gostr3411-94");
- goto err;
- break;
-
- default:
- if (have_unknown)
- write_comma = 0;
- else
- {
- BIO_puts(out, "unknown");
- have_unknown = 1;
- }
- break;
-
- }
- }
-
- ret = 1;
- err:
-
- return ret;
-
- }
+{
+ const EVP_MD *md;
+ int i, have_unknown = 0, write_comma, ret = 0, md_nid;
+ have_unknown = 0;
+ write_comma = 0;
+ for (i = 0; i < sk_X509_ALGOR_num(mdalgs); i++) {
+ if (write_comma)
+ BIO_write(out, ",", 1);
+ write_comma = 1;
+ md_nid = OBJ_obj2nid(sk_X509_ALGOR_value(mdalgs, i)->algorithm);
+ md = EVP_get_digestbynid(md_nid);
+ if (md && md->md_ctrl) {
+ int rv;
+ char *micstr;
+ rv = md->md_ctrl(NULL, EVP_MD_CTRL_MICALG, 0, &micstr);
+ if (rv > 0) {
+ BIO_puts(out, micstr);
+ OPENSSL_free(micstr);
+ continue;
+ }
+ if (rv != -2)
+ goto err;
+ }
+ switch (md_nid) {
+ case NID_sha1:
+ BIO_puts(out, "sha1");
+ break;
+
+ case NID_md5:
+ BIO_puts(out, "md5");
+ break;
+
+ case NID_sha256:
+ BIO_puts(out, "sha-256");
+ break;
+
+ case NID_sha384:
+ BIO_puts(out, "sha-384");
+ break;
+
+ case NID_sha512:
+ BIO_puts(out, "sha-512");
+ break;
+
+ case NID_id_GostR3411_94:
+ BIO_puts(out, "gostr3411-94");
+ goto err;
+
+ default:
+ if (have_unknown)
+ write_comma = 0;
+ else {
+ BIO_puts(out, "unknown");
+ have_unknown = 1;
+ }
+ break;
+
+ }
+ }
+
+ ret = 1;
+ err:
+
+ return ret;
+
+}
/* SMIME sender */
int SMIME_write_ASN1(BIO *bio, ASN1_VALUE *val, BIO *data, int flags,
- int ctype_nid, int econt_nid,
- STACK_OF(X509_ALGOR) *mdalgs,
- const ASN1_ITEM *it)
+ int ctype_nid, int econt_nid,
+ STACK_OF(X509_ALGOR) *mdalgs, const ASN1_ITEM *it)
{
- char bound[33], c;
- int i;
- const char *mime_prefix, *mime_eol, *cname = "smime.p7m";
- const char *msg_type=NULL;
- if (flags & SMIME_OLDMIME)
- mime_prefix = "application/x-pkcs7-";
- else
- mime_prefix = "application/pkcs7-";
-
- if (flags & SMIME_CRLFEOL)
- mime_eol = "\r\n";
- else
- mime_eol = "\n";
- if((flags & SMIME_DETACHED) && data) {
- /* We want multipart/signed */
- /* Generate a random boundary */
- RAND_pseudo_bytes((unsigned char *)bound, 32);
- for(i = 0; i < 32; i++) {
- c = bound[i] & 0xf;
- if(c < 10) c += '0';
- else c += 'A' - 10;
- bound[i] = c;
- }
- bound[32] = 0;
- BIO_printf(bio, "MIME-Version: 1.0%s", mime_eol);
- BIO_printf(bio, "Content-Type: multipart/signed;");
- BIO_printf(bio, " protocol=\"%ssignature\";", mime_prefix);
- BIO_puts(bio, " micalg=\"");
- asn1_write_micalg(bio, mdalgs);
- BIO_printf(bio, "\"; boundary=\"----%s\"%s%s",
- bound, mime_eol, mime_eol);
- BIO_printf(bio, "This is an S/MIME signed message%s%s",
- mime_eol, mime_eol);
- /* Now write out the first part */
- BIO_printf(bio, "------%s%s", bound, mime_eol);
- if (!asn1_output_data(bio, data, val, flags, it))
- return 0;
- BIO_printf(bio, "%s------%s%s", mime_eol, bound, mime_eol);
-
- /* Headers for signature */
-
- BIO_printf(bio, "Content-Type: %ssignature;", mime_prefix);
- BIO_printf(bio, " name=\"smime.p7s\"%s", mime_eol);
- BIO_printf(bio, "Content-Transfer-Encoding: base64%s",
- mime_eol);
- BIO_printf(bio, "Content-Disposition: attachment;");
- BIO_printf(bio, " filename=\"smime.p7s\"%s%s",
- mime_eol, mime_eol);
- B64_write_ASN1(bio, val, NULL, 0, it);
- BIO_printf(bio,"%s------%s--%s%s", mime_eol, bound,
- mime_eol, mime_eol);
- return 1;
- }
-
- /* Determine smime-type header */
-
- if (ctype_nid == NID_pkcs7_enveloped)
- msg_type = "enveloped-data";
- else if (ctype_nid == NID_pkcs7_signed)
- {
- if (econt_nid == NID_id_smime_ct_receipt)
- msg_type = "signed-receipt";
- else if (sk_X509_ALGOR_num(mdalgs) >= 0)
- msg_type = "signed-data";
- else
- msg_type = "certs-only";
- }
- else if (ctype_nid == NID_id_smime_ct_compressedData)
- {
- msg_type = "compressed-data";
- cname = "smime.p7z";
- }
- /* MIME headers */
- BIO_printf(bio, "MIME-Version: 1.0%s", mime_eol);
- BIO_printf(bio, "Content-Disposition: attachment;");
- BIO_printf(bio, " filename=\"%s\"%s", cname, mime_eol);
- BIO_printf(bio, "Content-Type: %smime;", mime_prefix);
- if (msg_type)
- BIO_printf(bio, " smime-type=%s;", msg_type);
- BIO_printf(bio, " name=\"%s\"%s", cname, mime_eol);
- BIO_printf(bio, "Content-Transfer-Encoding: base64%s%s",
- mime_eol, mime_eol);
- if (!B64_write_ASN1(bio, val, data, flags, it))
- return 0;
- BIO_printf(bio, "%s", mime_eol);
- return 1;
+ char bound[33], c;
+ int i;
+ const char *mime_prefix, *mime_eol, *cname = "smime.p7m";
+ const char *msg_type = NULL;
+ if (flags & SMIME_OLDMIME)
+ mime_prefix = "application/x-pkcs7-";
+ else
+ mime_prefix = "application/pkcs7-";
+
+ if (flags & SMIME_CRLFEOL)
+ mime_eol = "\r\n";
+ else
+ mime_eol = "\n";
+ if ((flags & SMIME_DETACHED) && data) {
+ /* We want multipart/signed */
+ /* Generate a random boundary */
+ if (RAND_bytes((unsigned char *)bound, 32) <= 0)
+ return 0;
+ for (i = 0; i < 32; i++) {
+ c = bound[i] & 0xf;
+ if (c < 10)
+ c += '0';
+ else
+ c += 'A' - 10;
+ bound[i] = c;
+ }
+ bound[32] = 0;
+ BIO_printf(bio, "MIME-Version: 1.0%s", mime_eol);
+ BIO_printf(bio, "Content-Type: multipart/signed;");
+ BIO_printf(bio, " protocol=\"%ssignature\";", mime_prefix);
+ BIO_puts(bio, " micalg=\"");
+ asn1_write_micalg(bio, mdalgs);
+ BIO_printf(bio, "\"; boundary=\"----%s\"%s%s",
+ bound, mime_eol, mime_eol);
+ BIO_printf(bio, "This is an S/MIME signed message%s%s",
+ mime_eol, mime_eol);
+ /* Now write out the first part */
+ BIO_printf(bio, "------%s%s", bound, mime_eol);
+ if (!asn1_output_data(bio, data, val, flags, it))
+ return 0;
+ BIO_printf(bio, "%s------%s%s", mime_eol, bound, mime_eol);
+
+ /* Headers for signature */
+
+ BIO_printf(bio, "Content-Type: %ssignature;", mime_prefix);
+ BIO_printf(bio, " name=\"smime.p7s\"%s", mime_eol);
+ BIO_printf(bio, "Content-Transfer-Encoding: base64%s", mime_eol);
+ BIO_printf(bio, "Content-Disposition: attachment;");
+ BIO_printf(bio, " filename=\"smime.p7s\"%s%s", mime_eol, mime_eol);
+ B64_write_ASN1(bio, val, NULL, 0, it);
+ BIO_printf(bio, "%s------%s--%s%s", mime_eol, bound,
+ mime_eol, mime_eol);
+ return 1;
+ }
+
+ /* Determine smime-type header */
+
+ if (ctype_nid == NID_pkcs7_enveloped)
+ msg_type = "enveloped-data";
+ else if (ctype_nid == NID_pkcs7_signed) {
+ if (econt_nid == NID_id_smime_ct_receipt)
+ msg_type = "signed-receipt";
+ else if (sk_X509_ALGOR_num(mdalgs) >= 0)
+ msg_type = "signed-data";
+ else
+ msg_type = "certs-only";
+ } else if (ctype_nid == NID_id_smime_ct_compressedData) {
+ msg_type = "compressed-data";
+ cname = "smime.p7z";
+ }
+ /* MIME headers */
+ BIO_printf(bio, "MIME-Version: 1.0%s", mime_eol);
+ BIO_printf(bio, "Content-Disposition: attachment;");
+ BIO_printf(bio, " filename=\"%s\"%s", cname, mime_eol);
+ BIO_printf(bio, "Content-Type: %smime;", mime_prefix);
+ if (msg_type)
+ BIO_printf(bio, " smime-type=%s;", msg_type);
+ BIO_printf(bio, " name=\"%s\"%s", cname, mime_eol);
+ BIO_printf(bio, "Content-Transfer-Encoding: base64%s%s",
+ mime_eol, mime_eol);
+ if (!B64_write_ASN1(bio, val, data, flags, it))
+ return 0;
+ BIO_printf(bio, "%s", mime_eol);
+ return 1;
}
/* Handle output of ASN1 data */
-
static int asn1_output_data(BIO *out, BIO *data, ASN1_VALUE *val, int flags,
- const ASN1_ITEM *it)
- {
- BIO *tmpbio;
- const ASN1_AUX *aux = it->funcs;
- ASN1_STREAM_ARG sarg;
- int rv = 1;
-
- /* If data is not deteched or resigning then the output BIO is
- * already set up to finalise when it is written through.
- */
- if (!(flags & SMIME_DETACHED) || (flags & PKCS7_REUSE_DIGEST))
- {
- SMIME_crlf_copy(data, out, flags);
- return 1;
- }
-
- if (!aux || !aux->asn1_cb)
- {
- ASN1err(ASN1_F_ASN1_OUTPUT_DATA,
- ASN1_R_STREAMING_NOT_SUPPORTED);
- return 0;
- }
-
- sarg.out = out;
- sarg.ndef_bio = NULL;
- sarg.boundary = NULL;
-
- /* Let ASN1 code prepend any needed BIOs */
-
- if (aux->asn1_cb(ASN1_OP_DETACHED_PRE, &val, it, &sarg) <= 0)
- return 0;
-
- /* Copy data across, passing through filter BIOs for processing */
- SMIME_crlf_copy(data, sarg.ndef_bio, flags);
-
- /* Finalize structure */
- if (aux->asn1_cb(ASN1_OP_DETACHED_POST, &val, it, &sarg) <= 0)
- rv = 0;
-
- /* Now remove any digests prepended to the BIO */
-
- while (sarg.ndef_bio != out)
- {
- tmpbio = BIO_pop(sarg.ndef_bio);
- BIO_free(sarg.ndef_bio);
- sarg.ndef_bio = tmpbio;
- }
-
- return rv;
-
- }
-
-/* SMIME reader: handle multipart/signed and opaque signing.
- * in multipart case the content is placed in a memory BIO
- * pointed to by "bcont". In opaque this is set to NULL
+ const ASN1_ITEM *it)
+{
+ BIO *tmpbio;
+ const ASN1_AUX *aux = it->funcs;
+ ASN1_STREAM_ARG sarg;
+ int rv = 1;
+
+ /*
+ * If data is not detached or resigning then the output BIO is already
+ * set up to finalise when it is written through.
+ */
+ if (!(flags & SMIME_DETACHED) || (flags & PKCS7_REUSE_DIGEST)) {
+ SMIME_crlf_copy(data, out, flags);
+ return 1;
+ }
+
+ if (!aux || !aux->asn1_cb) {
+ ASN1err(ASN1_F_ASN1_OUTPUT_DATA, ASN1_R_STREAMING_NOT_SUPPORTED);
+ return 0;
+ }
+
+ sarg.out = out;
+ sarg.ndef_bio = NULL;
+ sarg.boundary = NULL;
+
+ /* Let ASN1 code prepend any needed BIOs */
+
+ if (aux->asn1_cb(ASN1_OP_DETACHED_PRE, &val, it, &sarg) <= 0)
+ return 0;
+
+ /* Copy data across, passing through filter BIOs for processing */
+ SMIME_crlf_copy(data, sarg.ndef_bio, flags);
+
+ /* Finalize structure */
+ if (aux->asn1_cb(ASN1_OP_DETACHED_POST, &val, it, &sarg) <= 0)
+ rv = 0;
+
+ /* Now remove any digests prepended to the BIO */
+
+ while (sarg.ndef_bio != out) {
+ tmpbio = BIO_pop(sarg.ndef_bio);
+ BIO_free(sarg.ndef_bio);
+ sarg.ndef_bio = tmpbio;
+ }
+
+ return rv;
+
+}
+
+/*
+ * SMIME reader: handle multipart/signed and opaque signing. in multipart
+ * case the content is placed in a memory BIO pointed to by "bcont". In
+ * opaque this is set to NULL
*/
ASN1_VALUE *SMIME_read_ASN1(BIO *bio, BIO **bcont, const ASN1_ITEM *it)
{
- BIO *asnin;
- STACK_OF(MIME_HEADER) *headers = NULL;
- STACK_OF(BIO) *parts = NULL;
- MIME_HEADER *hdr;
- MIME_PARAM *prm;
- ASN1_VALUE *val;
- int ret;
-
- if(bcont) *bcont = NULL;
-
- if (!(headers = mime_parse_hdr(bio))) {
- ASN1err(ASN1_F_SMIME_READ_ASN1,ASN1_R_MIME_PARSE_ERROR);
- return NULL;
- }
-
- if(!(hdr = mime_hdr_find(headers, "content-type")) || !hdr->value) {
- sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
- ASN1err(ASN1_F_SMIME_READ_ASN1, ASN1_R_NO_CONTENT_TYPE);
- return NULL;
- }
-
- /* Handle multipart/signed */
-
- if(!strcmp(hdr->value, "multipart/signed")) {
- /* Split into two parts */
- prm = mime_param_find(hdr, "boundary");
- if(!prm || !prm->param_value) {
- sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
- ASN1err(ASN1_F_SMIME_READ_ASN1, ASN1_R_NO_MULTIPART_BOUNDARY);
- return NULL;
- }
- ret = multi_split(bio, prm->param_value, &parts);
- sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
- if(!ret || (sk_BIO_num(parts) != 2) ) {
- ASN1err(ASN1_F_SMIME_READ_ASN1, ASN1_R_NO_MULTIPART_BODY_FAILURE);
- sk_BIO_pop_free(parts, BIO_vfree);
- return NULL;
- }
-
- /* Parse the signature piece */
- asnin = sk_BIO_value(parts, 1);
-
- if (!(headers = mime_parse_hdr(asnin))) {
- ASN1err(ASN1_F_SMIME_READ_ASN1,ASN1_R_MIME_SIG_PARSE_ERROR);
- sk_BIO_pop_free(parts, BIO_vfree);
- return NULL;
- }
-
- /* Get content type */
-
- if(!(hdr = mime_hdr_find(headers, "content-type")) ||
- !hdr->value) {
- sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
- ASN1err(ASN1_F_SMIME_READ_ASN1, ASN1_R_NO_SIG_CONTENT_TYPE);
- return NULL;
- }
-
- if(strcmp(hdr->value, "application/x-pkcs7-signature") &&
- strcmp(hdr->value, "application/pkcs7-signature")) {
- ASN1err(ASN1_F_SMIME_READ_ASN1,ASN1_R_SIG_INVALID_MIME_TYPE);
- ERR_add_error_data(2, "type: ", hdr->value);
- sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
- sk_BIO_pop_free(parts, BIO_vfree);
- return NULL;
- }
- sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
- /* Read in ASN1 */
- if(!(val = b64_read_asn1(asnin, it))) {
- ASN1err(ASN1_F_SMIME_READ_ASN1,ASN1_R_ASN1_SIG_PARSE_ERROR);
- sk_BIO_pop_free(parts, BIO_vfree);
- return NULL;
- }
-
- if(bcont) {
- *bcont = sk_BIO_value(parts, 0);
- BIO_free(asnin);
- sk_BIO_free(parts);
- } else sk_BIO_pop_free(parts, BIO_vfree);
- return val;
- }
-
- /* OK, if not multipart/signed try opaque signature */
-
- if (strcmp (hdr->value, "application/x-pkcs7-mime") &&
- strcmp (hdr->value, "application/pkcs7-mime")) {
- ASN1err(ASN1_F_SMIME_READ_ASN1,ASN1_R_INVALID_MIME_TYPE);
- ERR_add_error_data(2, "type: ", hdr->value);
- sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
- return NULL;
- }
-
- sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
-
- if(!(val = b64_read_asn1(bio, it))) {
- ASN1err(ASN1_F_SMIME_READ_ASN1, ASN1_R_ASN1_PARSE_ERROR);
- return NULL;
- }
- return val;
+ BIO *asnin;
+ STACK_OF(MIME_HEADER) *headers = NULL;
+ STACK_OF(BIO) *parts = NULL;
+ MIME_HEADER *hdr;
+ MIME_PARAM *prm;
+ ASN1_VALUE *val;
+ int ret;
+
+ if (bcont)
+ *bcont = NULL;
+
+ if ((headers = mime_parse_hdr(bio)) == NULL) {
+ ASN1err(ASN1_F_SMIME_READ_ASN1, ASN1_R_MIME_PARSE_ERROR);
+ return NULL;
+ }
+
+ if ((hdr = mime_hdr_find(headers, "content-type")) == NULL
+ || hdr->value == NULL) {
+ sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
+ ASN1err(ASN1_F_SMIME_READ_ASN1, ASN1_R_NO_CONTENT_TYPE);
+ return NULL;
+ }
+
+ /* Handle multipart/signed */
+
+ if (strcmp(hdr->value, "multipart/signed") == 0) {
+ /* Split into two parts */
+ prm = mime_param_find(hdr, "boundary");
+ if (!prm || !prm->param_value) {
+ sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
+ ASN1err(ASN1_F_SMIME_READ_ASN1, ASN1_R_NO_MULTIPART_BOUNDARY);
+ return NULL;
+ }
+ ret = multi_split(bio, prm->param_value, &parts);
+ sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
+ if (!ret || (sk_BIO_num(parts) != 2)) {
+ ASN1err(ASN1_F_SMIME_READ_ASN1, ASN1_R_NO_MULTIPART_BODY_FAILURE);
+ sk_BIO_pop_free(parts, BIO_vfree);
+ return NULL;
+ }
+
+ /* Parse the signature piece */
+ asnin = sk_BIO_value(parts, 1);
+
+ if ((headers = mime_parse_hdr(asnin)) == NULL) {
+ ASN1err(ASN1_F_SMIME_READ_ASN1, ASN1_R_MIME_SIG_PARSE_ERROR);
+ sk_BIO_pop_free(parts, BIO_vfree);
+ return NULL;
+ }
+
+ /* Get content type */
+
+ if ((hdr = mime_hdr_find(headers, "content-type")) == NULL
+ || hdr->value == NULL) {
+ sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
+ ASN1err(ASN1_F_SMIME_READ_ASN1, ASN1_R_NO_SIG_CONTENT_TYPE);
+ return NULL;
+ }
+
+ if (strcmp(hdr->value, "application/x-pkcs7-signature") &&
+ strcmp(hdr->value, "application/pkcs7-signature")) {
+ ASN1err(ASN1_F_SMIME_READ_ASN1, ASN1_R_SIG_INVALID_MIME_TYPE);
+ ERR_add_error_data(2, "type: ", hdr->value);
+ sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
+ sk_BIO_pop_free(parts, BIO_vfree);
+ return NULL;
+ }
+ sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
+ /* Read in ASN1 */
+ if ((val = b64_read_asn1(asnin, it)) == NULL) {
+ ASN1err(ASN1_F_SMIME_READ_ASN1, ASN1_R_ASN1_SIG_PARSE_ERROR);
+ sk_BIO_pop_free(parts, BIO_vfree);
+ return NULL;
+ }
+
+ if (bcont) {
+ *bcont = sk_BIO_value(parts, 0);
+ BIO_free(asnin);
+ sk_BIO_free(parts);
+ } else
+ sk_BIO_pop_free(parts, BIO_vfree);
+ return val;
+ }
+
+ /* OK, if not multipart/signed try opaque signature */
+
+ if (strcmp(hdr->value, "application/x-pkcs7-mime") &&
+ strcmp(hdr->value, "application/pkcs7-mime")) {
+ ASN1err(ASN1_F_SMIME_READ_ASN1, ASN1_R_INVALID_MIME_TYPE);
+ ERR_add_error_data(2, "type: ", hdr->value);
+ sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
+ return NULL;
+ }
+
+ sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
+
+ if ((val = b64_read_asn1(bio, it)) == NULL) {
+ ASN1err(ASN1_F_SMIME_READ_ASN1, ASN1_R_ASN1_PARSE_ERROR);
+ return NULL;
+ }
+ return val;
}
/* Copy text from one BIO to another making the output CRLF at EOL */
int SMIME_crlf_copy(BIO *in, BIO *out, int flags)
{
- BIO *bf;
- char eol;
- int len;
- char linebuf[MAX_SMLEN];
- /* Buffer output so we don't write one line at a time. This is
- * useful when streaming as we don't end up with one OCTET STRING
- * per line.
- */
- bf = BIO_new(BIO_f_buffer());
- if (!bf)
- return 0;
- out = BIO_push(bf, out);
- if(flags & SMIME_BINARY)
- {
- while((len = BIO_read(in, linebuf, MAX_SMLEN)) > 0)
- BIO_write(out, linebuf, len);
- }
- else
- {
- int eolcnt = 0;
- if(flags & SMIME_TEXT)
- BIO_printf(out, "Content-Type: text/plain\r\n\r\n");
- while ((len = BIO_gets(in, linebuf, MAX_SMLEN)) > 0)
- {
- eol = strip_eol(linebuf, &len, flags);
- if (len)
- {
- /* Not EOF: write out all CRLF */
- if (flags & SMIME_ASCIICRLF)
- {
- int i;
- for(i = 0; i < eolcnt; i++)
- BIO_write(out, "\r\n", 2);
- eolcnt = 0;
- }
- BIO_write(out, linebuf, len);
- if(eol)
- BIO_write(out, "\r\n", 2);
- }
- else if (flags & SMIME_ASCIICRLF)
- eolcnt++;
- else if(eol)
- BIO_write(out, "\r\n", 2);
- }
- }
- (void)BIO_flush(out);
- BIO_pop(out);
- BIO_free(bf);
- return 1;
+ BIO *bf;
+ char eol;
+ int len;
+ char linebuf[MAX_SMLEN];
+ /*
+ * Buffer output so we don't write one line at a time. This is useful
+ * when streaming as we don't end up with one OCTET STRING per line.
+ */
+ bf = BIO_new(BIO_f_buffer());
+ if (bf == NULL)
+ return 0;
+ out = BIO_push(bf, out);
+ if (flags & SMIME_BINARY) {
+ while ((len = BIO_read(in, linebuf, MAX_SMLEN)) > 0)
+ BIO_write(out, linebuf, len);
+ } else {
+ int eolcnt = 0;
+ if (flags & SMIME_TEXT)
+ BIO_printf(out, "Content-Type: text/plain\r\n\r\n");
+ while ((len = BIO_gets(in, linebuf, MAX_SMLEN)) > 0) {
+ eol = strip_eol(linebuf, &len, flags);
+ if (len) {
+ /* Not EOF: write out all CRLF */
+ if (flags & SMIME_ASCIICRLF) {
+ int i;
+ for (i = 0; i < eolcnt; i++)
+ BIO_write(out, "\r\n", 2);
+ eolcnt = 0;
+ }
+ BIO_write(out, linebuf, len);
+ if (eol)
+ BIO_write(out, "\r\n", 2);
+ } else if (flags & SMIME_ASCIICRLF)
+ eolcnt++;
+ else if (eol)
+ BIO_write(out, "\r\n", 2);
+ }
+ }
+ (void)BIO_flush(out);
+ BIO_pop(out);
+ BIO_free(bf);
+ return 1;
}
/* Strip off headers if they are text/plain */
int SMIME_text(BIO *in, BIO *out)
{
- char iobuf[4096];
- int len;
- STACK_OF(MIME_HEADER) *headers;
- MIME_HEADER *hdr;
-
- if (!(headers = mime_parse_hdr(in))) {
- ASN1err(ASN1_F_SMIME_TEXT,ASN1_R_MIME_PARSE_ERROR);
- return 0;
- }
- if(!(hdr = mime_hdr_find(headers, "content-type")) || !hdr->value) {
- ASN1err(ASN1_F_SMIME_TEXT,ASN1_R_MIME_NO_CONTENT_TYPE);
- sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
- return 0;
- }
- if (strcmp (hdr->value, "text/plain")) {
- ASN1err(ASN1_F_SMIME_TEXT,ASN1_R_INVALID_MIME_TYPE);
- ERR_add_error_data(2, "type: ", hdr->value);
- sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
- return 0;
- }
- sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
- while ((len = BIO_read(in, iobuf, sizeof(iobuf))) > 0)
- BIO_write(out, iobuf, len);
- if (len < 0)
- return 0;
- return 1;
+ char iobuf[4096];
+ int len;
+ STACK_OF(MIME_HEADER) *headers;
+ MIME_HEADER *hdr;
+
+ if ((headers = mime_parse_hdr(in)) == NULL) {
+ ASN1err(ASN1_F_SMIME_TEXT, ASN1_R_MIME_PARSE_ERROR);
+ return 0;
+ }
+ if ((hdr = mime_hdr_find(headers, "content-type")) == NULL
+ || hdr->value == NULL) {
+ ASN1err(ASN1_F_SMIME_TEXT, ASN1_R_MIME_NO_CONTENT_TYPE);
+ sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
+ return 0;
+ }
+ if (strcmp(hdr->value, "text/plain")) {
+ ASN1err(ASN1_F_SMIME_TEXT, ASN1_R_INVALID_MIME_TYPE);
+ ERR_add_error_data(2, "type: ", hdr->value);
+ sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
+ return 0;
+ }
+ sk_MIME_HEADER_pop_free(headers, mime_hdr_free);
+ while ((len = BIO_read(in, iobuf, sizeof(iobuf))) > 0)
+ BIO_write(out, iobuf, len);
+ if (len < 0)
+ return 0;
+ return 1;
}
-/* Split a multipart/XXX message body into component parts: result is
+/*
+ * Split a multipart/XXX message body into component parts: result is
* canonical parts in a STACK of bios
*/
static int multi_split(BIO *bio, char *bound, STACK_OF(BIO) **ret)
{
- char linebuf[MAX_SMLEN];
- int len, blen;
- int eol = 0, next_eol = 0;
- BIO *bpart = NULL;
- STACK_OF(BIO) *parts;
- char state, part, first;
-
- blen = strlen(bound);
- part = 0;
- state = 0;
- first = 1;
- parts = sk_BIO_new_null();
- *ret = parts;
- while ((len = BIO_gets(bio, linebuf, MAX_SMLEN)) > 0) {
- state = mime_bound_check(linebuf, len, bound, blen);
- if(state == 1) {
- first = 1;
- part++;
- } else if(state == 2) {
- sk_BIO_push(parts, bpart);
- return 1;
- } else if(part) {
- /* Strip CR+LF from linebuf */
- next_eol = strip_eol(linebuf, &len, 0);
- if(first) {
- first = 0;
- if(bpart) sk_BIO_push(parts, bpart);
- bpart = BIO_new(BIO_s_mem());
- BIO_set_mem_eof_return(bpart, 0);
- } else if (eol)
- BIO_write(bpart, "\r\n", 2);
- eol = next_eol;
- if (len)
- BIO_write(bpart, linebuf, len);
- }
- }
- return 0;
+ char linebuf[MAX_SMLEN];
+ int len, blen;
+ int eol = 0, next_eol = 0;
+ BIO *bpart = NULL;
+ STACK_OF(BIO) *parts;
+ char state, part, first;
+
+ blen = strlen(bound);
+ part = 0;
+ state = 0;
+ first = 1;
+ parts = sk_BIO_new_null();
+ *ret = parts;
+ if (*ret == NULL)
+ return 0;
+ while ((len = BIO_gets(bio, linebuf, MAX_SMLEN)) > 0) {
+ state = mime_bound_check(linebuf, len, bound, blen);
+ if (state == 1) {
+ first = 1;
+ part++;
+ } else if (state == 2) {
+ if (!sk_BIO_push(parts, bpart)) {
+ BIO_free(bpart);
+ return 0;
+ }
+ return 1;
+ } else if (part) {
+ /* Strip CR+LF from linebuf */
+ next_eol = strip_eol(linebuf, &len, 0);
+ if (first) {
+ first = 0;
+ if (bpart)
+ if (!sk_BIO_push(parts, bpart)) {
+ BIO_free(bpart);
+ return 0;
+ }
+ bpart = BIO_new(BIO_s_mem());
+ if (bpart == NULL)
+ return 0;
+ BIO_set_mem_eof_return(bpart, 0);
+ } else if (eol)
+ BIO_write(bpart, "\r\n", 2);
+ eol = next_eol;
+ if (len)
+ BIO_write(bpart, linebuf, len);
+ }
+ }
+ BIO_free(bpart);
+ return 0;
}
/* This is the big one: parse MIME header lines up to message body */
-#define MIME_INVALID 0
-#define MIME_START 1
-#define MIME_TYPE 2
-#define MIME_NAME 3
-#define MIME_VALUE 4
-#define MIME_QUOTE 5
-#define MIME_COMMENT 6
-
+#define MIME_INVALID 0
+#define MIME_START 1
+#define MIME_TYPE 2
+#define MIME_NAME 3
+#define MIME_VALUE 4
+#define MIME_QUOTE 5
+#define MIME_COMMENT 6
static STACK_OF(MIME_HEADER) *mime_parse_hdr(BIO *bio)
{
- char *p, *q, c;
- char *ntmp;
- char linebuf[MAX_SMLEN];
- MIME_HEADER *mhdr = NULL;
- STACK_OF(MIME_HEADER) *headers;
- int len, state, save_state = 0;
-
- headers = sk_MIME_HEADER_new(mime_hdr_cmp);
- while ((len = BIO_gets(bio, linebuf, MAX_SMLEN)) > 0) {
- /* If whitespace at line start then continuation line */
- if(mhdr && isspace((unsigned char)linebuf[0])) state = MIME_NAME;
- else state = MIME_START;
- ntmp = NULL;
- /* Go through all characters */
- for(p = linebuf, q = linebuf; (c = *p) && (c!='\r') && (c!='\n'); p++) {
-
- /* State machine to handle MIME headers
- * if this looks horrible that's because it *is*
- */
-
- switch(state) {
- case MIME_START:
- if(c == ':') {
- state = MIME_TYPE;
- *p = 0;
- ntmp = strip_ends(q);
- q = p + 1;
- }
- break;
-
- case MIME_TYPE:
- if(c == ';') {
- mime_debug("Found End Value\n");
- *p = 0;
- mhdr = mime_hdr_new(ntmp, strip_ends(q));
- sk_MIME_HEADER_push(headers, mhdr);
- ntmp = NULL;
- q = p + 1;
- state = MIME_NAME;
- } else if(c == '(') {
- save_state = state;
- state = MIME_COMMENT;
- }
- break;
-
- case MIME_COMMENT:
- if(c == ')') {
- state = save_state;
- }
- break;
-
- case MIME_NAME:
- if(c == '=') {
- state = MIME_VALUE;
- *p = 0;
- ntmp = strip_ends(q);
- q = p + 1;
- }
- break ;
-
- case MIME_VALUE:
- if(c == ';') {
- state = MIME_NAME;
- *p = 0;
- mime_hdr_addparam(mhdr, ntmp, strip_ends(q));
- ntmp = NULL;
- q = p + 1;
- } else if (c == '"') {
- mime_debug("Found Quote\n");
- state = MIME_QUOTE;
- } else if(c == '(') {
- save_state = state;
- state = MIME_COMMENT;
- }
- break;
-
- case MIME_QUOTE:
- if(c == '"') {
- mime_debug("Found Match Quote\n");
- state = MIME_VALUE;
- }
- break;
- }
- }
-
- if(state == MIME_TYPE) {
- mhdr = mime_hdr_new(ntmp, strip_ends(q));
- sk_MIME_HEADER_push(headers, mhdr);
- } else if(state == MIME_VALUE)
- mime_hdr_addparam(mhdr, ntmp, strip_ends(q));
- if(p == linebuf) break; /* Blank line means end of headers */
-}
-
-return headers;
+ char *p, *q, c;
+ char *ntmp;
+ char linebuf[MAX_SMLEN];
+ MIME_HEADER *mhdr = NULL;
+ STACK_OF(MIME_HEADER) *headers;
+ int len, state, save_state = 0;
+
+ headers = sk_MIME_HEADER_new(mime_hdr_cmp);
+ if (headers == NULL)
+ return NULL;
+ while ((len = BIO_gets(bio, linebuf, MAX_SMLEN)) > 0) {
+ /* If whitespace at line start then continuation line */
+ if (mhdr && isspace((unsigned char)linebuf[0]))
+ state = MIME_NAME;
+ else
+ state = MIME_START;
+ ntmp = NULL;
+ /* Go through all characters */
+ for (p = linebuf, q = linebuf; (c = *p) && (c != '\r') && (c != '\n');
+ p++) {
+
+ /*
+ * State machine to handle MIME headers if this looks horrible
+ * that's because it *is*
+ */
+
+ switch (state) {
+ case MIME_START:
+ if (c == ':') {
+ state = MIME_TYPE;
+ *p = 0;
+ ntmp = strip_ends(q);
+ q = p + 1;
+ }
+ break;
+
+ case MIME_TYPE:
+ if (c == ';') {
+ mime_debug("Found End Value\n");
+ *p = 0;
+ mhdr = mime_hdr_new(ntmp, strip_ends(q));
+ sk_MIME_HEADER_push(headers, mhdr);
+ ntmp = NULL;
+ q = p + 1;
+ state = MIME_NAME;
+ } else if (c == '(') {
+ save_state = state;
+ state = MIME_COMMENT;
+ }
+ break;
+
+ case MIME_COMMENT:
+ if (c == ')') {
+ state = save_state;
+ }
+ break;
+
+ case MIME_NAME:
+ if (c == '=') {
+ state = MIME_VALUE;
+ *p = 0;
+ ntmp = strip_ends(q);
+ q = p + 1;
+ }
+ break;
+
+ case MIME_VALUE:
+ if (c == ';') {
+ state = MIME_NAME;
+ *p = 0;
+ mime_hdr_addparam(mhdr, ntmp, strip_ends(q));
+ ntmp = NULL;
+ q = p + 1;
+ } else if (c == '"') {
+ mime_debug("Found Quote\n");
+ state = MIME_QUOTE;
+ } else if (c == '(') {
+ save_state = state;
+ state = MIME_COMMENT;
+ }
+ break;
+
+ case MIME_QUOTE:
+ if (c == '"') {
+ mime_debug("Found Match Quote\n");
+ state = MIME_VALUE;
+ }
+ break;
+ }
+ }
+
+ if (state == MIME_TYPE) {
+ mhdr = mime_hdr_new(ntmp, strip_ends(q));
+ sk_MIME_HEADER_push(headers, mhdr);
+ } else if (state == MIME_VALUE)
+ mime_hdr_addparam(mhdr, ntmp, strip_ends(q));
+ if (p == linebuf)
+ break; /* Blank line means end of headers */
+ }
+
+ return headers;
}
static char *strip_ends(char *name)
{
- return strip_end(strip_start(name));
+ return strip_end(strip_start(name));
}
/* Strip a parameter of whitespace from start of param */
static char *strip_start(char *name)
{
- char *p, c;
- /* Look for first non white space or quote */
- for(p = name; (c = *p) ;p++) {
- if(c == '"') {
- /* Next char is start of string if non null */
- if(p[1]) return p + 1;
- /* Else null string */
- return NULL;
- }
- if(!isspace((unsigned char)c)) return p;
- }
- return NULL;
+ char *p, c;
+ /* Look for first non white space or quote */
+ for (p = name; (c = *p); p++) {
+ if (c == '"') {
+ /* Next char is start of string if non null */
+ if (p[1])
+ return p + 1;
+ /* Else null string */
+ return NULL;
+ }
+ if (!isspace((unsigned char)c))
+ return p;
+ }
+ return NULL;
}
/* As above but strip from end of string : maybe should handle brackets? */
static char *strip_end(char *name)
{
- char *p, c;
- if(!name) return NULL;
- /* Look for first non white space or quote */
- for(p = name + strlen(name) - 1; p >= name ;p--) {
- c = *p;
- if(c == '"') {
- if(p - 1 == name) return NULL;
- *p = 0;
- return name;
- }
- if(isspace((unsigned char)c)) *p = 0;
- else return name;
- }
- return NULL;
+ char *p, c;
+ if (!name)
+ return NULL;
+ /* Look for first non white space or quote */
+ for (p = name + strlen(name) - 1; p >= name; p--) {
+ c = *p;
+ if (c == '"') {
+ if (p - 1 == name)
+ return NULL;
+ *p = 0;
+ return name;
+ }
+ if (isspace((unsigned char)c))
+ *p = 0;
+ else
+ return name;
+ }
+ return NULL;
}
static MIME_HEADER *mime_hdr_new(char *name, char *value)
{
- MIME_HEADER *mhdr;
- char *tmpname, *tmpval, *p;
- int c;
- if(name) {
- if(!(tmpname = BUF_strdup(name))) return NULL;
- for(p = tmpname ; *p; p++) {
- c = (unsigned char)*p;
- if(isupper(c)) {
- c = tolower(c);
- *p = c;
- }
- }
- } else tmpname = NULL;
- if(value) {
- if(!(tmpval = BUF_strdup(value))) return NULL;
- for(p = tmpval ; *p; p++) {
- c = (unsigned char)*p;
- if(isupper(c)) {
- c = tolower(c);
- *p = c;
- }
- }
- } else tmpval = NULL;
- mhdr = (MIME_HEADER *) OPENSSL_malloc(sizeof(MIME_HEADER));
- if(!mhdr) return NULL;
- mhdr->name = tmpname;
- mhdr->value = tmpval;
- if(!(mhdr->params = sk_MIME_PARAM_new(mime_param_cmp))) return NULL;
- return mhdr;
+ MIME_HEADER *mhdr = NULL;
+ char *tmpname = NULL, *tmpval = NULL, *p;
+ int c;
+
+ if (name) {
+ if ((tmpname = OPENSSL_strdup(name)) == NULL)
+ return NULL;
+ for (p = tmpname; *p; p++) {
+ c = (unsigned char)*p;
+ if (isupper(c)) {
+ c = tolower(c);
+ *p = c;
+ }
+ }
+ }
+ if (value) {
+ if ((tmpval = OPENSSL_strdup(value)) == NULL)
+ goto err;
+ for (p = tmpval; *p; p++) {
+ c = (unsigned char)*p;
+ if (isupper(c)) {
+ c = tolower(c);
+ *p = c;
+ }
+ }
+ }
+ mhdr = OPENSSL_malloc(sizeof(*mhdr));
+ if (mhdr == NULL)
+ goto err;
+ mhdr->name = tmpname;
+ mhdr->value = tmpval;
+ if ((mhdr->params = sk_MIME_PARAM_new(mime_param_cmp)) == NULL)
+ goto err;
+ return mhdr;
+
+ err:
+ OPENSSL_free(tmpname);
+ OPENSSL_free(tmpval);
+ OPENSSL_free(mhdr);
+ return NULL;
}
-
+
static int mime_hdr_addparam(MIME_HEADER *mhdr, char *name, char *value)
{
- char *tmpname, *tmpval, *p;
- int c;
- MIME_PARAM *mparam;
- if(name) {
- tmpname = BUF_strdup(name);
- if(!tmpname) return 0;
- for(p = tmpname ; *p; p++) {
- c = (unsigned char)*p;
- if(isupper(c)) {
- c = tolower(c);
- *p = c;
- }
- }
- } else tmpname = NULL;
- if(value) {
- tmpval = BUF_strdup(value);
- if(!tmpval) return 0;
- } else tmpval = NULL;
- /* Parameter values are case sensitive so leave as is */
- mparam = (MIME_PARAM *) OPENSSL_malloc(sizeof(MIME_PARAM));
- if(!mparam) return 0;
- mparam->param_name = tmpname;
- mparam->param_value = tmpval;
- sk_MIME_PARAM_push(mhdr->params, mparam);
- return 1;
+ char *tmpname = NULL, *tmpval = NULL, *p;
+ int c;
+ MIME_PARAM *mparam = NULL;
+ if (name) {
+ tmpname = OPENSSL_strdup(name);
+ if (!tmpname)
+ goto err;
+ for (p = tmpname; *p; p++) {
+ c = (unsigned char)*p;
+ if (isupper(c)) {
+ c = tolower(c);
+ *p = c;
+ }
+ }
+ }
+ if (value) {
+ tmpval = OPENSSL_strdup(value);
+ if (!tmpval)
+ goto err;
+ }
+ /* Parameter values are case sensitive so leave as is */
+ mparam = OPENSSL_malloc(sizeof(*mparam));
+ if (mparam == NULL)
+ goto err;
+ mparam->param_name = tmpname;
+ mparam->param_value = tmpval;
+ if (!sk_MIME_PARAM_push(mhdr->params, mparam))
+ goto err;
+ return 1;
+ err:
+ OPENSSL_free(tmpname);
+ OPENSSL_free(tmpval);
+ OPENSSL_free(mparam);
+ return 0;
}
-static int mime_hdr_cmp(const MIME_HEADER * const *a,
- const MIME_HEADER * const *b)
+static int mime_hdr_cmp(const MIME_HEADER *const *a,
+ const MIME_HEADER *const *b)
{
- if (!(*a)->name || !(*b)->name)
- return !!(*a)->name - !!(*b)->name;
+ if (!(*a)->name || !(*b)->name)
+ return ! !(*a)->name - ! !(*b)->name;
- return(strcmp((*a)->name, (*b)->name));
+ return (strcmp((*a)->name, (*b)->name));
}
-static int mime_param_cmp(const MIME_PARAM * const *a,
- const MIME_PARAM * const *b)
+static int mime_param_cmp(const MIME_PARAM *const *a,
+ const MIME_PARAM *const *b)
{
- if (!(*a)->param_name || !(*b)->param_name)
- return !!(*a)->param_name - !!(*b)->param_name;
- return(strcmp((*a)->param_name, (*b)->param_name));
+ if (!(*a)->param_name || !(*b)->param_name)
+ return ! !(*a)->param_name - ! !(*b)->param_name;
+ return (strcmp((*a)->param_name, (*b)->param_name));
}
/* Find a header with a given name (if possible) */
static MIME_HEADER *mime_hdr_find(STACK_OF(MIME_HEADER) *hdrs, char *name)
{
- MIME_HEADER htmp;
- int idx;
- htmp.name = name;
- idx = sk_MIME_HEADER_find(hdrs, &htmp);
- if(idx < 0) return NULL;
- return sk_MIME_HEADER_value(hdrs, idx);
+ MIME_HEADER htmp;
+ int idx;
+ htmp.name = name;
+ idx = sk_MIME_HEADER_find(hdrs, &htmp);
+ if (idx < 0)
+ return NULL;
+ return sk_MIME_HEADER_value(hdrs, idx);
}
static MIME_PARAM *mime_param_find(MIME_HEADER *hdr, char *name)
{
- MIME_PARAM param;
- int idx;
- param.param_name = name;
- idx = sk_MIME_PARAM_find(hdr->params, ¶m);
- if(idx < 0) return NULL;
- return sk_MIME_PARAM_value(hdr->params, idx);
+ MIME_PARAM param;
+ int idx;
+ param.param_name = name;
+ idx = sk_MIME_PARAM_find(hdr->params, ¶m);
+ if (idx < 0)
+ return NULL;
+ return sk_MIME_PARAM_value(hdr->params, idx);
}
static void mime_hdr_free(MIME_HEADER *hdr)
{
- if(hdr->name) OPENSSL_free(hdr->name);
- if(hdr->value) OPENSSL_free(hdr->value);
- if(hdr->params) sk_MIME_PARAM_pop_free(hdr->params, mime_param_free);
- OPENSSL_free(hdr);
+ OPENSSL_free(hdr->name);
+ OPENSSL_free(hdr->value);
+ if (hdr->params)
+ sk_MIME_PARAM_pop_free(hdr->params, mime_param_free);
+ OPENSSL_free(hdr);
}
static void mime_param_free(MIME_PARAM *param)
{
- if(param->param_name) OPENSSL_free(param->param_name);
- if(param->param_value) OPENSSL_free(param->param_value);
- OPENSSL_free(param);
+ OPENSSL_free(param->param_name);
+ OPENSSL_free(param->param_value);
+ OPENSSL_free(param);
}
-/* Check for a multipart boundary. Returns:
+/*-
+ * Check for a multipart boundary. Returns:
* 0 : no boundary
* 1 : part boundary
* 2 : final boundary
*/
static int mime_bound_check(char *line, int linelen, char *bound, int blen)
{
- if(linelen == -1) linelen = strlen(line);
- if(blen == -1) blen = strlen(bound);
- /* Quickly eliminate if line length too short */
- if(blen + 2 > linelen) return 0;
- /* Check for part boundary */
- if(!strncmp(line, "--", 2) && !strncmp(line + 2, bound, blen)) {
- if(!strncmp(line + blen + 2, "--", 2)) return 2;
- else return 1;
- }
- return 0;
+ if (linelen == -1)
+ linelen = strlen(line);
+ if (blen == -1)
+ blen = strlen(bound);
+ /* Quickly eliminate if line length too short */
+ if (blen + 2 > linelen)
+ return 0;
+ /* Check for part boundary */
+ if ((strncmp(line, "--", 2) == 0)
+ && strncmp(line + 2, bound, blen) == 0) {
+ if (strncmp(line + blen + 2, "--", 2) == 0)
+ return 2;
+ else
+ return 1;
+ }
+ return 0;
}
static int strip_eol(char *linebuf, int *plen, int flags)
- {
- int len = *plen;
- char *p, c;
- int is_eol = 0;
- p = linebuf + len - 1;
- for (p = linebuf + len - 1; len > 0; len--, p--)
- {
- c = *p;
- if (c == '\n')
- is_eol = 1;
- else if (is_eol && flags & SMIME_ASCIICRLF && c < 33)
- continue;
- else if (c != '\r')
- break;
- }
- *plen = len;
- return is_eol;
- }
+{
+ int len = *plen;
+ char *p, c;
+ int is_eol = 0;
+ p = linebuf + len - 1;
+ for (p = linebuf + len - 1; len > 0; len--, p--) {
+ c = *p;
+ if (c == '\n')
+ is_eol = 1;
+ else if (is_eol && flags & SMIME_ASCIICRLF && c < 33)
+ continue;
+ else if (c != '\r')
+ break;
+ }
+ *plen = len;
+ return is_eol;
+}
projects / openssl.git / blobdiff