Copyright © 2001 - 2007 SILC Project SILC Project Website | SILC Toolkit Reference Manual Index

SILC Toolkit Reference Manual
SILC VCard Library
SILC VCard Interface
SILC Crypto Library
Introduction to SILC RNG
SILC RNG Interface
SILC Cipher API
SILC PKCS API
SILC Public Key API
SILC PKCS #1 API
SILC Hash Interface
SILC HMAC Interface
SILC Client Library
Using SILC Client Library Tutorial
Arguments for command_reply Client Operation
SilcStatus Error Arguments in command_reply Client Operation
Arguments for notify Client Operation
Unicode and UTF-8 Strings in Client Library
Client Library Interface Reference
Client Entry Interface Reference
SILC Math Library
SILC MP Interface
SILC Math Interface
SILC Application Utility Library
SILC Application Utilities
SILC ID Cache Interface
SILC Key Repository Library
SILC SKR Interface
SILC ASN.1 Library
SILC ASN.1 Interface
SILC BER interface
SILC Key Exchange Library
SILC SKE Interface
SILC Connection Authentication Interface
SILC SFTP Library
SILC SFTP Interface
SFTP Filesystems Interface
SILC Core Library
SILC Authentication Interface
SILC Message Interface
SILC Channel Interface
SILC Command Interface
SILC Notify Interface
SILC Status Types
SILC Modes
SILC ID Interface
SILC Argument Interface
SILC Attributes Interface
Packet Engine Interface
SILC Public Key Payload Interface
SILC Utility Library
Basic Types and Definitions
Data Buffer Interface
Data Buffer Format Interface
Hash Table Interface
Memory Allocation Interface
Data Stack (memory pool) Interface
Finite State Machine Interface
Thread Interface
Mutual Exclusion Lock Interface
Condition Variable Interface
Atomic Operations Interface
Network (TCP and UDP) Interface
Scheduler Interface
Asynchronous Operation Interface
Abstract Stream Interface
Socket Stream Interface
File Descriptor Stream Interface
File Utility Functions
String Utility Interface
Snprintf Interface
UTF-8 String Interface
Stringprep Interface
Utility Functions
List Interface
Dynamic List Interface
MIME Interface
Time Utility Functions
Logging Interface
Config File Interface
SILC HTTP Library
SILC HTTP Server Interface
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Resource Links
SILC Project Website
SILC Protocol Documentation
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Function silc_stack_pop
SYNOPSIS

        SilcUInt32 silc_stack_pop(SilcStack stack);

DESCRIPTION

        Pop the top of the stack upwards which reveals the previous stack frame
        and becomes the top of the stack.  After popping, memory allocated in
        the old frame is freed.  For each silc_stack_push call there must be
        silc_stack_pop call to free all memory (in reality any memory is not
        freed but within the stack it is).  This returns the stack pointer of
        old frame after popping and caller may check that it is same as
        returned by the silc_stack_push.  If it they differ, some routine
        has called silc_stack_push but has not called silc_stack_pop, or
        silc_stack_pop has been called too many times.  Application should
        treat this as a fatal error, as it is a bug in the application code.

        If `stack' is NULL this call has no effect.

EXAMPLE

        This example saves the stack pointer which is checked when popping
        the current stack frame.  If the stack pointer differs then someone
        has pushed the stack frame but forgot to pop it (or has called it
        too many times).

        sp = silc_stack_push(stack, NULL);
        silc_foo_parse_packet(packet, stack);
        if (silc_stack_pop(stack) != sp)
          fatal("corrupted stack");

SilcStack Interface SilcStack SilcStackFrame silc_stack_alloc silc_stack_free silc_stack_push silc_stack_pop

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