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Annotation of embedaddon/sudo/include/sudo_dso.h, revision 1.1

1.1     ! misho       1: /*
        !             2:  * Copyright (c) 2010, 2013 Todd C. Miller <Todd.Miller@courtesan.com>
        !             3:  *
        !             4:  * Permission to use, copy, modify, and distribute this software for any
        !             5:  * purpose with or without fee is hereby granted, provided that the above
        !             6:  * copyright notice and this permission notice appear in all copies.
        !             7:  *
        !             8:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !             9:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            10:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            11:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            12:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
        !            13:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
        !            14:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            15:  */
        !            16: 
        !            17: #ifndef _SUDO_DSO_H
        !            18: #define _SUDO_DSO_H
        !            19: 
        !            20: /* Values for sudo_dso_load() mode. */
        !            21: #define SUDO_DSO_LAZY   0x1
        !            22: #define SUDO_DSO_NOW    0x2
        !            23: #define SUDO_DSO_GLOBAL         0x4
        !            24: #define SUDO_DSO_LOCAL  0x8
        !            25: 
        !            26: /* Special handle arguments for sudo_dso_findsym(). */
        !            27: #define SUDO_DSO_NEXT   ((void *)-1)   /* Search subsequent objects. */
        !            28: #define SUDO_DSO_DEFAULT ((void *)-2)  /* Use default search algorithm. */
        !            29: #define SUDO_DSO_SELF   ((void *)-3)   /* Search the caller itself. */
        !            30: 
        !            31: /* Internal structs for static linking of plugins. */
        !            32: struct sudo_preload_symbol {
        !            33:     const char *name;
        !            34:     void *addr;
        !            35: };
        !            36: struct sudo_preload_table {
        !            37:     const char *path;
        !            38:     void *handle;
        !            39:     struct sudo_preload_symbol *symbols;
        !            40: };
        !            41: 
        !            42: /* Public functions. */
        !            43: char *sudo_dso_strerror(void);
        !            44: int sudo_dso_unload(void *handle);
        !            45: void *sudo_dso_findsym(void *handle, const char *symbol);
        !            46: void *sudo_dso_load(const char *path, int mode);
        !            47: void sudo_dso_preload_table(struct sudo_preload_table *table);
        !            48: 
        !            49: #endif /* _SUDO_DSO_H */