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485d336137
Change find-doc-nits to complain if a section header is repeated, within a parent header (i.e., duplicate =head2 within a =head1). In almost all cases, we just remove the duplicate header, as it was a "continuation" of the =head1 that was already in affect. In some cases, just remove "=head1 NOTES", possibly moving text around, because the "NOTES" were really important parts of the DESCRIPTION section. No =headX sections should end with a period. All =head1 labels should be in all uppercase. No sub-head (=head2, etc) should be in all uppercase. Update find-doc-nits to reject the above. Fixup an internal POD link Reviewed-by: Richard Levitte <levitte@openssl.org> Reviewed-by: Paul Yang <kaishen.yy@antfin.com> Reviewed-by: Paul Dale <paul.dale@oracle.com> (Merged from https://github.com/openssl/openssl/pull/9631)
114 lines
3.2 KiB
Plaintext
114 lines
3.2 KiB
Plaintext
=pod
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=head1 NAME
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PKCS12_newpass - change the password of a PKCS12 structure
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=head1 SYNOPSIS
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#include <openssl/pkcs12.h>
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int PKCS12_newpass(PKCS12 *p12, const char *oldpass, const char *newpass);
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=head1 DESCRIPTION
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PKCS12_newpass() changes the password of a PKCS12 structure.
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B<p12> is a pointer to a PKCS12 structure. B<oldpass> is the existing password
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and B<newpass> is the new password.
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Each of B<oldpass> and B<newpass> is independently interpreted as a string in
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the UTF-8 encoding. If it is not valid UTF-8, it is assumed to be ISO8859-1
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instead.
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In particular, this means that passwords in the locale character set
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(or code page on Windows) must potentially be converted to UTF-8 before
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use. This may include passwords from local text files, or input from
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the terminal or command line. Refer to the documentation of
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L<UI_OpenSSL(3)>, for example.
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If the PKCS#12 structure does not have a password, then you must use the empty
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string "" for B<oldpass>. Using NULL for B<oldpass> will result in a
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PKCS12_newpass() failure.
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If the wrong password is used for B<oldpass> then the function will fail,
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with a MAC verification error. In rare cases the PKCS12 structure does not
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contain a MAC: in this case it will usually fail with a decryption padding
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error.
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=head1 RETURN VALUES
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PKCS12_newpass() returns 1 on success or 0 on failure. Applications can
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retrieve the most recent error from PKCS12_newpass() with ERR_get_error().
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=head1 EXAMPLES
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This example loads a PKCS#12 file, changes its password and writes out
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the result to a new file.
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#include <stdio.h>
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#include <stdlib.h>
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#include <openssl/pem.h>
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#include <openssl/err.h>
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#include <openssl/pkcs12.h>
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int main(int argc, char **argv)
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{
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FILE *fp;
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PKCS12 *p12;
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if (argc != 5) {
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fprintf(stderr, "Usage: pkread p12file password newpass opfile\n");
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return 1;
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}
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if ((fp = fopen(argv[1], "rb")) == NULL) {
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fprintf(stderr, "Error opening file %s\n", argv[1]);
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return 1;
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}
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p12 = d2i_PKCS12_fp(fp, NULL);
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fclose(fp);
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if (p12 == NULL) {
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fprintf(stderr, "Error reading PKCS#12 file\n");
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ERR_print_errors_fp(stderr);
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return 1;
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}
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if (PKCS12_newpass(p12, argv[2], argv[3]) == 0) {
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fprintf(stderr, "Error changing password\n");
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ERR_print_errors_fp(stderr);
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PKCS12_free(p12);
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return 1;
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}
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if ((fp = fopen(argv[4], "wb")) == NULL) {
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fprintf(stderr, "Error opening file %s\n", argv[4]);
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PKCS12_free(p12);
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return 1;
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}
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i2d_PKCS12_fp(fp, p12);
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PKCS12_free(p12);
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fclose(fp);
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return 0;
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}
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=head1 BUGS
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The password format is a NULL terminated ASCII string which is converted to
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Unicode form internally. As a result some passwords cannot be supplied to
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this function.
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=head1 SEE ALSO
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L<PKCS12_create(3)>, L<ERR_get_error(3)>,
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L<passphrase-encoding(7)>
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=head1 COPYRIGHT
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Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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