/usr/include/duo.h is in libduo-dev 1.9.21-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | /*
* duo.h
*
* Copyright (c) 2010 Duo Security
* All rights reserved, all wrongs reversed.
*/
#ifndef DUO_H
#define DUO_H
typedef enum {
DUO_CONTINUE = -1, /* continue authentication */
DUO_OK = 0, /* great success! */
DUO_FAIL, /* nice try */
DUO_ABORT, /* give up */
DUO_LIB_ERROR, /* unexpected library error */
DUO_CONN_ERROR, /* problem connecting */
DUO_CLIENT_ERROR, /* you screwed up */
DUO_SERVER_ERROR, /* we screwed up */
} duo_code_t;
#define DUO_FLAG_SYNC (1 << 0) /* no incremental status reporting */
#define DUO_FLAG_AUTO (1 << 1) /* use default factor without prompt */
#define DUO_FLAG_ENV (1 << 2) /* Get factor from environment variable */
#define DUO_ENV_VAR_NAME "DUO_PASSCODE"
#define DUO_NO_TIMEOUT -1
typedef struct duo_ctx duo_t;
/* Parse INI config file */
int duo_parse_config(
const char *filename,
int (*callback)(void *arg, const char *section, const char *name, const char *val),
void *arg
);
/* Open Duo API handle */
duo_t *duo_open(
const char *host,
const char *ikey,
const char *skey,
const char *progname,
const char *cafile,
int https_timeout,
const char *http_proxy
);
/* Override conversation prompt/status functions */
void duo_set_conv_funcs(
duo_t *d,
char *(*conv_prompt)(void *conv_arg, const char *prompt, char *buf, size_t bufsz),
void (*conv_status)(void *conv_arg, const char *msg),
void *conv_arg
);
/* Reset the conversation prompt/status functions back to default */
void duo_reset_conv_funcs(duo_t *d);
/* Perform Duo authentication */
duo_code_t duo_login(
duo_t *d,
const char *username,
const char *client_ip,
int flags,
const char *command
);
/* Return error message from last API call */
const char *duo_geterr(duo_t *d);
/* Close API handle. */
duo_t *duo_close(duo_t *d);
#endif /* DUO_H */
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