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Diffstat (limited to 'src/lib/libcrypto/man/ERR_get_error.3')
-rw-r--r-- | src/lib/libcrypto/man/ERR_get_error.3 | 135 |
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diff --git a/src/lib/libcrypto/man/ERR_get_error.3 b/src/lib/libcrypto/man/ERR_get_error.3 new file mode 100644 index 0000000000..8b11f792c1 --- /dev/null +++ b/src/lib/libcrypto/man/ERR_get_error.3 | |||
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1 | .Dd $Mdocdate: November 2 2016 $ | ||
2 | .Dt ERR_GET_ERROR 3 | ||
3 | .Os | ||
4 | .Sh NAME | ||
5 | .Nm ERR_get_error , | ||
6 | .Nm ERR_peek_error , | ||
7 | .Nm ERR_peek_last_error , | ||
8 | .Nm ERR_get_error_line , | ||
9 | .Nm ERR_peek_error_line , | ||
10 | .Nm ERR_peek_last_error_line , | ||
11 | .Nm ERR_get_error_line_data , | ||
12 | .Nm ERR_peek_error_line_data , | ||
13 | .Nm ERR_peek_last_error_line_data | ||
14 | .Nd obtain OpenSSL error code and data | ||
15 | .Sh SYNOPSIS | ||
16 | .In openssl/err.h | ||
17 | .Ft unsigned long | ||
18 | .Fn ERR_get_error void | ||
19 | .Ft unsigned long | ||
20 | .Fn ERR_peek_error void | ||
21 | .Ft unsigned long | ||
22 | .Fn ERR_peek_last_error void | ||
23 | .Ft unsigned long | ||
24 | .Fo ERR_get_error_line | ||
25 | .Fa "const char **file" | ||
26 | .Fa "int *line" | ||
27 | .Fc | ||
28 | .Ft unsigned long | ||
29 | .Fo ERR_peek_error_line | ||
30 | .Fa "const char **file" | ||
31 | .Fa "int *line" | ||
32 | .Fc | ||
33 | .Ft unsigned long | ||
34 | .Fo ERR_peek_last_error_line | ||
35 | .Fa "const char **file" | ||
36 | .Fa "int *line" | ||
37 | .Fc | ||
38 | .Ft unsigned long | ||
39 | .Fo ERR_get_error_line_data | ||
40 | .Fa "const char **file" | ||
41 | .Fa "int *line" | ||
42 | .Fa "const char **data" | ||
43 | .Fa "int *flags" | ||
44 | .Fc | ||
45 | .Ft unsigned long | ||
46 | .Fo ERR_peek_error_line_data | ||
47 | .Fa "const char **file" | ||
48 | .Fa "int *line" | ||
49 | .Fa "const char **data" | ||
50 | .Fa "int *flags" | ||
51 | .Fc | ||
52 | .Ft unsigned long | ||
53 | .Fo ERR_peek_last_error_line_data | ||
54 | .Fa "const char **file" | ||
55 | .Fa "int *line" | ||
56 | .Fa "const char **data" | ||
57 | .Fa "int *flags" | ||
58 | .Fc | ||
59 | .Sh DESCRIPTION | ||
60 | .Fn ERR_get_error | ||
61 | returns the earliest error code from the thread's error queue and | ||
62 | removes the entry. | ||
63 | This function can be called repeatedly until there are no more error | ||
64 | codes to return. | ||
65 | .Pp | ||
66 | .Fn ERR_peek_error | ||
67 | returns the earliest error code from the thread's error queue without | ||
68 | modifying it. | ||
69 | .Pp | ||
70 | .Fn ERR_peek_last_error | ||
71 | returns the latest error code from the thread's error queue without | ||
72 | modifying it. | ||
73 | .Pp | ||
74 | See | ||
75 | .Xr ERR_GET_LIB 3 | ||
76 | for obtaining information about location and reason of the error, and | ||
77 | .Xr ERR_error_string 3 | ||
78 | for human-readable error messages. | ||
79 | .Pp | ||
80 | .Fn ERR_get_error_line , | ||
81 | .Fn ERR_peek_error_line , | ||
82 | and | ||
83 | .Fn ERR_peek_last_error_line | ||
84 | are the same as the above, but they additionally store the file name and | ||
85 | line number where the error occurred in | ||
86 | .Pf * Fa file | ||
87 | and | ||
88 | .Pf * Fa line , | ||
89 | unless these are | ||
90 | .Dv NULL . | ||
91 | .Pp | ||
92 | .Fn ERR_get_error_line_data , | ||
93 | .Fn ERR_peek_error_line_data , | ||
94 | and | ||
95 | .Fn ERR_peek_last_error_line_data | ||
96 | store additional data and flags associated with the error code in | ||
97 | .Pf * Fa data | ||
98 | and | ||
99 | .Pf * Fa flags , | ||
100 | unless these are | ||
101 | .Dv NULL . | ||
102 | .Pf * Fa data | ||
103 | contains a string if | ||
104 | .Pf * Fa flags Ns & Ns Dv ERR_TXT_STRING | ||
105 | is true. | ||
106 | .Pp | ||
107 | An application | ||
108 | .Sy MUST NOT | ||
109 | free the | ||
110 | .Pf * Fa data | ||
111 | pointer (or any other pointers returned by these functions) with | ||
112 | .Xr free 3 | ||
113 | as freeing is handled automatically by the error library. | ||
114 | .Sh RETURN VALUES | ||
115 | The error code, or 0 if there is no error in the queue. | ||
116 | .Sh SEE ALSO | ||
117 | .Xr ERR 3 , | ||
118 | .Xr ERR_error_string 3 , | ||
119 | .Xr ERR_GET_LIB 3 | ||
120 | .Sh HISTORY | ||
121 | .Fn ERR_get_error , | ||
122 | .Fn ERR_peek_error , | ||
123 | .Fn ERR_get_error_line , | ||
124 | and | ||
125 | .Fn ERR_peek_error_line | ||
126 | are available in all versions of SSLeay and OpenSSL. | ||
127 | .Fn ERR_get_error_line_data | ||
128 | and | ||
129 | .Fn ERR_peek_error_line_data | ||
130 | were added in SSLeay 0.9.0. | ||
131 | .Fn ERR_peek_last_error , | ||
132 | .Fn ERR_peek_last_error_line , | ||
133 | and | ||
134 | .Fn ERR_peek_last_error_line_data | ||
135 | were added in OpenSSL 0.9.7. | ||