[insert project logo here (125x200px max)] Navigator Home Downloads Documentation Research News Forums Project Summary CVS repository Mailinglists Help Announcement Developer Please report any errors or ommissions you find to our `Help' mailinglist, or post a message in the Forums. Copyright and Licensing Information Snap is (c) Jonathan T. Moore, 1999-2002 and licensed under the GNU General Public License (GPL). All other parts of Splash are (c) Willem de Bruijn, 2002-2003 and licensed under the BSD Open Source License. All sourcecode is made publicly available. Acknowledgement Splash and the Splash website are hosted by SourceForge.net

Splash - Documentation SNMP Plus a Lightweight API for SNAP Handling             snap-1.1-wjdb/lib/snap_svc_handler.c Go to the documentation of this file. /* snap service handler main source file (c) 2003 Willem de Bruijn some code has been copied from the base SNAP package by Jon Moore all code falls under the BSD License */ #ifdef CONFIG_IP_SNAP_SVCS #include <stdlib.h> #include <snap_svc.h> #include "d_printf.h" #include "snap_svc_conversion.h" #include "snap_svc_reg_table.h" #include "snap_svc_reg_handler.h" #include "snap_svc_handler.h" int snap_svc_initialized = 0; /* call a service additionally, stack values are converted to function arguments and return values are converted to stack values and placed on the stack */ int snap_svc_call_service(packet_t *p, char *name) { struct snap_svc_rec *sr = NULL; void** args = NULL; void* returnptr = NULL; int i = 0; if (!snap_svc_initialized || !p || !name){ d_printf(50,"snap_svc : tried to call a service incorrectly, skipping\n"); d_printf(100,"debugging code: init=%d packet=%u name=%s\n", snap_svc_initialized, p, name); } d_printf(100,"%s:%d: looking up service \"%s\"\n",__FILE__,__LINE__,name); sr = snap_svc_table_find(name); if (sr == NULL) { d_printf(50,"%s:%d: service not found\n",__FILE__,__LINE__); return -1; } d_printf(50,"%s:%d: svc takes %d args and returns %d values\n",__FILE__,__LINE__,sr->nargs,sr->nret); /* convert the arguments */ if (sr->nargs){ args = (void**) snap_svc_convert_stack2arguments(p, sr->nargs); if (!args) return -1; } /* now call the service */ d_printf(100,"%s:%d: about to call service...\n",__FILE__,__LINE__); switch (sr->nargs){ case 0 : returnptr = ((snapsvc_func_proto) (sr->snapsvc_func))(NULL); break; /* send a dummy variable, since every variable must take at least one parameter */ case 1 : returnptr = ((snapsvc_func_proto) (sr->snapsvc_func))(args[0]); break; case 2 : returnptr = ((snapsvc_func_proto) (sr->snapsvc_func))(args[0], args[1]); break; case 3 : returnptr = ((snapsvc_func_proto) (sr->snapsvc_func))(args[0], args[1], args[2]); break; case 4 : returnptr = ((snapsvc_func_proto) (sr->snapsvc_func))(args[0], args[1], args[2], args[3]); break; case 5 : returnptr = ((snapsvc_func_proto) (sr->snapsvc_func))(args[0], args[1], args[2], args[3], args[4]); break; default : d_printf(50,"snap : %s:%d: tried to call a function with too many arguments\n",__FILE__,__LINE__); } /* push up the direct results, if any */ if (sr->nret != SVC_SNMP_TYPE_NULL) snap_svc_convert_direct2stack(p, returnptr, sr->nret); /* check if it returned anything using a returnstruct */ returnptr = snap_svc_register_returnlaststruct(); if (returnptr){ d_printf(50,"snap : %s:%d: retrieved a result containing %d variables, ptr =(%p) \n",__FILE__,__LINE__,((struct svc_returnstruct*)returnptr)->length, returnptr); for (i=0; i < ((struct svc_returnstruct*) returnptr)->length; i++) snap_svc_convert_returnstruct2stack(p, p->sp, &((struct svc_returnstruct*) returnptr)->list[i]); returnptr = snap_svc_register_freelaststruct(); } free(args); return 0; } /* load the services */ void snap_svc_handler_init() { snap_svc_table_init(); /* initialize the hashtable */ snap_svc_registerall(); /* register services */ snap_svc_initialized = 1; } /* unload the services */ void snap_svc_handler_close() { snap_svc_unregisterall(); /* register services */ snap_svc_table_fini(); /* initialize the hashtable */ snap_svc_initialized = 1; } /* reinitialize the services */ void snap_svc_handler_reinit(){ snap_svc_handler_close(); snap_svc_handler_init(); } #endif