libetpan - fdik
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#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <libetpan/libetpan.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <errno.h>
#ifdef WIN32
# include "win_etpan.h"
#else
# include <sys/mman.h>
#endif
#include <stdlib.h>
#include <string.h>
int get_content_of_file(char * filename, char ** p_content, size_t * p_length)
{
int r;
struct stat stat_buf;
int fd;
char * content;
int nread;
r = stat(filename, &stat_buf);
if (r < 0)
goto err;
content = malloc(stat_buf.st_size + 1);
if (content == NULL)
goto err;
fd = open(filename, O_RDONLY);
if (fd < 0)
goto free;
nread = 0;
do
{
r = read (fd, content + nread, stat_buf.st_size - nread);
if (r > 0)
nread += r;
}
while (nread < stat_buf.st_size && (r > 0 || (r < 0 && errno == EAGAIN)));
if (r < 0)
goto close;
content[stat_buf.st_size] = '\0';
close(fd);
* p_content = content;
* p_length = stat_buf.st_size;
return 0;
close:
close(fd);
free:
free(content);
err:
return -1;
}
int mailmessage_encrypt(struct mailprivacy * privacy,
struct mailmessage * msg,
char * protocol, char * encryption_method)
{
int r;
int res;
struct mailmime * mime;
struct mailmime * encrypted_mime;
struct mailmime * part_to_encrypt;
r = mailprivacy_msg_get_bodystructure(privacy, msg, &mime);
if (r != MAIL_NO_ERROR) {
res = r;
goto err;
}
part_to_encrypt = mime->mm_data.mm_message.mm_msg_mime;
r = mailprivacy_encrypt_msg(privacy, protocol, encryption_method,
msg, part_to_encrypt, &encrypted_mime);
if (r != MAIL_NO_ERROR) {
res = r;
goto err;
}
mime->mm_data.mm_message.mm_msg_mime = encrypted_mime;
encrypted_mime->mm_parent = mime;
part_to_encrypt->mm_parent = NULL;
mailmime_free(part_to_encrypt);
return MAIL_NO_ERROR;
err:
return res;
}
int main(int argc, char ** argv)
{
char * content;
size_t length;
mailmessage * msg;
int r;
struct mailprivacy * privacy;
int col;
privacy = mailprivacy_new("/Users/hoa/tmp", 1);
if (privacy == NULL) {
goto err;
}
r = mailprivacy_gnupg_init(privacy);
if (r != MAIL_NO_ERROR) {
goto free_privacy;
}
if (argc < 2) {
fprintf(stderr, "syntax: pgp [message]\n");
goto done_gpg;
}
r = get_content_of_file(argv[1], &content, &length);
if (r < 0) {
fprintf(stderr, "file not found %s\n", argv[1]);
goto done_gpg;
}
msg = data_message_init(content, length);
if (msg == NULL) {
fprintf(stderr, "unexpected error\n");
goto free_content;
}
r = mailmessage_encrypt(privacy, msg, "pgp", "encrypted");
if (r != MAIL_NO_ERROR) {
fprintf(stderr, "cannot encrypt\n");
goto free_content;
}
col = 0;
mailmime_write(stdout, &col, msg->msg_mime);
mailmessage_free(msg);
free(content);
mailprivacy_gnupg_done(privacy);
mailprivacy_free(privacy);
exit(EXIT_SUCCESS);
free_content:
free(content);
done_gpg:
mailprivacy_gnupg_done(privacy);
free_privacy:
mailprivacy_free(privacy);
err:
exit(EXIT_FAILURE);
}