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Annotation of embedaddon/sudo/include/sudo_dso.h, revision 1.1.1.1

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 */