Why segmentation(coredump) in the following code in C? Post: 302530498

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Top Forums Programming Why segmentation(coredump) in the following code in C? Post 302530498 by AAKhan on Tuesday 14th of June 2011 07:39:34 AM

06-14-2011

Registered User

Thanks for ur reply
Here is my code.
This is the getsubstring function am using to get substring
char* getsubstring(const char* str, size_t begin, size_t len)
{
if (str == 0 || strlen(str) == 0)
return 0;
return strndup(str + begin, len);
}

and here is, how am catching the retrun char
char* cResponse = GetResponsePrimaryElements(cRPSegBin);

/* my input will be like this cRPSegBin = 11111110000000011111111000000000111111........ */

--> when i try to compile with -g, i got this
cc: 1501-218 (W) file testmsgparse.exe contains an incorrect file suffix
ld: 0711-224 WARNING: Duplicate symbol: __start
ld: 0711-224 WARNING: Duplicate symbol: .__start
ld: 0711-224 WARNING: Duplicate symbol: __threads_init
ld: 0711-224 WARNING: Duplicate symbol: .__threads_init
ld: 0711-224 WARNING: Duplicate symbol: .main
ld: 0711-224 WARNING: Duplicate symbol: .getsubstring
ld: 0711-224 WARNING: Duplicate symbol: .GetResponseSecondaryElements
ld: 0711-224 WARNING: Duplicate symbol: .GetResponsePrimaryElements
ld: 0711-224 WARNING: Duplicate symbol: .GetSecondaryDataElements
ld: 0711-224 WARNING: Duplicate symbol: .GetPrimaryDataElements
ld: 0711-224 WARNING: Duplicate symbol: .ConvertHexToBinary
ld: 0711-224 WARNING: Duplicate symbol: .GetOriginator
ld: 0711-224 WARNING: Duplicate symbol: .GetMessageFunction
ld: 0711-224 WARNING: Duplicate symbol: .GetMessageClass
ld: 0711-224 WARNING: Duplicate symbol: .GetMTIversion
ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more information.

What does this mean? How to interpret this?

---------- Post updated at 06:39 AM ---------- Previous update was at 06:22 AM ----------

Thanks Kumaran,
I got it by modifying my getsubstring method as

char* getsubstring(const char* str, size_t begin, size_t len)
{
if (str == 0 || strlen(str) == 0 || strlen(str) < begin || strlen(str) < (begin+len))
return 0;
return strndup(str + begin, len);
}

thanks to all

AAKhan

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LEARN ABOUT SUNOS

ps_pglobal_lookup

ps_pglobal_lookup(3PROC)				 Process Control Library Functions				  ps_pglobal_lookup(3PROC)

NAME

       ps_pglobal_lookup, ps_pglobal_sym - look up a symbol in the symbol table of the load object in the target process

SYNOPSIS

       #include <proc_service.h>

       ps_err_e ps_pglobal_lookup(struct ps_prochandle *ph, const char *object_name, const char *sym_name, psaddr_t *sym_addr);

       ps_err_e ps_pglobal_sym(struct ps_prochandle *ph, const char *object_name, const char *sym_name, ps_sym_t *sym);

DESCRIPTION

       ps_pglobal_lookup() looks up the symbol sym_name in the symbol table of the load object object_name in the target process identified by ph.
       It returns the symbol's value as an address in the target process in *sym_addr.

       ps_pglobal_sym() looks up the symbol sym_name in the symbol table of the load object object_name in the target process identified by ph. It
       returns the symbol table entry in *sym. The value in the symbol table entry is the symbol's value as an address in the target process.

RETURN VALUES

       PS_OK	       The call completed successfully.

       PS_NOSYM        The specified symbol was not found.

       PS_ERR	       The function did not return successfully.

ATTRIBUTES

       See attributes(5) for description of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |MT Level		     |Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       kill(2), libc_db(3LIB), proc_service(3PROC), attributes(5), threads(5)

SunOS 5.10							    16 Jan 1998 					  ps_pglobal_lookup(3PROC)