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man pages section 3: Extended Library Functions Oracle Solaris 10 8/11 Information Library |
Extended Library Functions - Part 1
Extended Library Functions - Part 2
dat_registry_add_provider(3DAT)
dat_registry_list_providers(3DAT)
dat_registry_remove_provider(3DAT)
dat_set_consumer_context(3DAT)
devid_deviceid_to_nmlist(3DEVID)
di_link_next_by_lnode(3DEVINFO)
di_link_next_by_node(3DEVINFO)
di_lnode_private_get(3DEVINFO)
di_lnode_private_set(3DEVINFO)
di_minor_private_get(3DEVINFO)
di_minor_private_set(3DEVINFO)
di_prom_prop_lookup_bytes(3DEVINFO)
di_prom_prop_lookup_ints(3DEVINFO)
di_prom_prop_lookup_strings(3DEVINFO)
di_prop_lookup_bytes(3DEVINFO)
di_prop_lookup_int64(3DEVINFO)
di_prop_lookup_strings(3DEVINFO)
DmiListComponentsByClass(3DMI)
ea_match_object_catalog(3EXACCT)
Extended Library Functions - Part 3
Extended Library Functions - Part 4
- error handling
cc [ flag ... ] file ... -lelf [ library ... ] #include <libelf.h> const char *elf_errmsg(int err);
int elf_errno(void);
If an ELF library function fails, a program can call elf_errno() to retrieve the library's internal error number. As a side effect, this function resets the internal error number to 0, which indicates no error.
The elf_errmsg() function takes an error number, err, and returns a null-terminated error message (with no trailing new-line) that describes the problem. A zero err retrieves a message for the most recent error. If no error has occurred, the return value is a null pointer (not a pointer to the null string). Using err of -1 also retrieves the most recent error, except it guarantees a non-null return value, even when no error has occurred. If no message is available for the given number, elf_errmsg() returns a pointer to an appropriate message. This function does not have the side effect of clearing the internal error number.
Example 1 A sample program of calling the elf_errmsg() function.
The following fragment clears the internal error number and checks it later for errors. Unless an error occurs after the first call to elf_errno(), the next call will return 0.
(void)elf_errno( ); /* processing . . . */ while (more_to_do) { if ((err = elf_errno( )) != 0) { /* print msg */ msg = elf_errmsg(err); } }
See attributes(5) for descriptions of the following attributes:
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