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1 | =pod | ||
2 | |||
3 | =head1 NAME | ||
4 | |||
5 | X509_NAME_print_ex, X509_NAME_print_ex_fp, X509_NAME_print, | ||
6 | X509_NAME_oneline - X509_NAME printing routines. | ||
7 | |||
8 | =head1 SYNOPSIS | ||
9 | |||
10 | #include <openssl/x509.h> | ||
11 | |||
12 | int X509_NAME_print_ex(BIO *out, X509_NAME *nm, int indent, unsigned long flags); | ||
13 | int X509_NAME_print_ex_fp(FILE *fp, X509_NAME *nm, int indent, unsigned long flags); | ||
14 | char * X509_NAME_oneline(X509_NAME *a,char *buf,int size); | ||
15 | int X509_NAME_print(BIO *bp, X509_NAME *name, int obase); | ||
16 | |||
17 | =head1 DESCRIPTION | ||
18 | |||
19 | X509_NAME_print_ex() prints a human readable version of B<nm> to BIO B<out>. Each | ||
20 | line (for multiline formats) is indented by B<indent> spaces. The output format | ||
21 | can be extensively customised by use of the B<flags> parameter. | ||
22 | |||
23 | X509_NAME_print_ex_fp() is identical to X509_NAME_print_ex() except the output is | ||
24 | written to FILE pointer B<fp>. | ||
25 | |||
26 | X509_NAME_oneline() prints an ASCII version of B<a> to B<buf>. At most B<size> | ||
27 | bytes will be written. If B<buf> is B<NULL> then a buffer is dynamically allocated | ||
28 | and returned, otherwise B<buf> is returned. | ||
29 | |||
30 | X509_NAME_print() prints out B<name> to B<bp> indenting each line by B<obase> | ||
31 | characters. Multiple lines are used if the output (including indent) exceeds | ||
32 | 80 characters. | ||
33 | |||
34 | =head1 NOTES | ||
35 | |||
36 | The functions X509_NAME_oneline() and X509_NAME_print() are legacy functions which | ||
37 | produce a non standard output form, they don't handle multi character fields and | ||
38 | have various quirks and inconsistencies. Their use is strongly discouraged in new | ||
39 | applications. | ||
40 | |||
41 | Although there are a large number of possible flags for most purposes | ||
42 | B<XN_FLAG_ONELINE>, B<XN_FLAG_MULTILINE> or B<XN_FLAG_RFC2253> will suffice. | ||
43 | As noted on the L<ASN1_STRING_print_ex(3)|ASN1_STRING_print_ex(3)> manual page | ||
44 | for UTF8 terminals the B<ASN1_STRFLAGS_ESC_MSB> should be unset: so for example | ||
45 | B<XN_FLAG_ONELINE & ~ASN1_STRFLAGS_ESC_MSB> would be used. | ||
46 | |||
47 | The complete set of the flags supported by X509_NAME_print_ex() is listed below. | ||
48 | |||
49 | Several options can be ored together. | ||
50 | |||
51 | The options B<XN_FLAG_SEP_COMMA_PLUS>, B<XN_FLAG_SEP_CPLUS_SPC>, | ||
52 | B<XN_FLAG_SEP_SPLUS_SPC> and B<XN_FLAG_SEP_MULTILINE> determine the field separators | ||
53 | to use. Two distinct separators are used between distinct RelativeDistinguishedName | ||
54 | components and separate values in the same RDN for a multi-valued RDN. Multi-valued | ||
55 | RDNs are currently very rare so the second separator will hardly ever be used. | ||
56 | |||
57 | B<XN_FLAG_SEP_COMMA_PLUS> uses comma and plus as separators. B<XN_FLAG_SEP_CPLUS_SPC> | ||
58 | uses comma and plus with spaces: this is more readable that plain comma and plus. | ||
59 | B<XN_FLAG_SEP_SPLUS_SPC> uses spaced semicolon and plus. B<XN_FLAG_SEP_MULTILINE> uses | ||
60 | spaced newline and plus respectively. | ||
61 | |||
62 | If B<XN_FLAG_DN_REV> is set the whole DN is printed in reversed order. | ||
63 | |||
64 | The fields B<XN_FLAG_FN_SN>, B<XN_FLAG_FN_LN>, B<XN_FLAG_FN_OID>, | ||
65 | B<XN_FLAG_FN_NONE> determine how a field name is displayed. It will | ||
66 | use the short name (e.g. CN) the long name (e.g. commonName) always | ||
67 | use OID numerical form (normally OIDs are only used if the field name is not | ||
68 | recognised) and no field name respectively. | ||
69 | |||
70 | If B<XN_FLAG_SPC_EQ> is set then spaces will be placed around the '=' character | ||
71 | separating field names and values. | ||
72 | |||
73 | If B<XN_FLAG_DUMP_UNKNOWN_FIELDS> is set then the encoding of unknown fields is | ||
74 | printed instead of the values. | ||
75 | |||
76 | If B<XN_FLAG_FN_ALIGN> is set then field names are padded to 20 characters: this | ||
77 | is only of use for multiline format. | ||
78 | |||
79 | Additionally all the options supported by ASN1_STRING_print_ex() can be used to | ||
80 | control how each field value is displayed. | ||
81 | |||
82 | In addition a number options can be set for commonly used formats. | ||
83 | |||
84 | B<XN_FLAG_RFC2253> sets options which produce an output compatible with RFC2253 it | ||
85 | is equivalent to: | ||
86 | B<ASN1_STRFLGS_RFC2253 | XN_FLAG_SEP_COMMA_PLUS | XN_FLAG_DN_REV | XN_FLAG_FN_SN | XN_FLAG_DUMP_UNKNOWN_FIELDS> | ||
87 | |||
88 | |||
89 | B<XN_FLAG_ONELINE> is a more readable one line format it is the same as: | ||
90 | B<ASN1_STRFLGS_RFC2253 | ASN1_STRFLGS_ESC_QUOTE | XN_FLAG_SEP_CPLUS_SPC | XN_FLAG_SPC_EQ | XN_FLAG_FN_SN> | ||
91 | |||
92 | B<XN_FLAG_MULTILINE> is a multiline format is is the same as: | ||
93 | B<ASN1_STRFLGS_ESC_CTRL | ASN1_STRFLGS_ESC_MSB | XN_FLAG_SEP_MULTILINE | XN_FLAG_SPC_EQ | XN_FLAG_FN_LN | XN_FLAG_FN_ALIGN> | ||
94 | |||
95 | B<XN_FLAG_COMPAT> uses a format identical to X509_NAME_print(): in fact it calls X509_NAME_print() internally. | ||
96 | |||
97 | =head1 SEE ALSO | ||
98 | |||
99 | L<ASN1_STRING_print_ex(3)|ASN1_STRING_print_ex(3)> | ||
100 | |||
101 | =head1 HISTORY | ||
102 | |||
103 | TBA | ||
104 | |||
105 | =cut | ||