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michael |
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/* Main processing code for Services. |
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* |
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* IRC Services is copyright (c) 1996-2009 Andrew Church. |
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* E-mail: <achurch@achurch.org> |
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* Parts written by Andrew Kempe and others. |
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* This program is free but copyrighted software; see the file GPL.txt for |
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* details. |
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*/ |
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#include "services.h" |
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#include "modules.h" |
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#include "messages.h" |
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static int cb_recvmsg = -1; |
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/*************************************************************************/ |
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/*************************************************************************/ |
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/* split_buf: Split a buffer into arguments and store a pointer to the |
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* argument vector in argv_ptr; return the argument count. |
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* The argument vector will point to a static buffer; |
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* subsequent calls will overwrite this buffer. |
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* If colon_special is non-zero, then treat a parameter with a |
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* leading ':' as the last parameter of the line, per the IRC |
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* RFC. Destroys the buffer by side effect. |
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*/ |
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static char **sbargv = NULL; /* File scope so process_cleanup() can free it */ |
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int split_buf(char *buf, char ***argv_ptr, int colon_special) |
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{ |
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static int argvsize = 8; |
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int argc; |
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char *s; |
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if (!sbargv) |
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sbargv = smalloc(sizeof(char *) * argvsize); |
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argc = 0; |
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while (*buf) { |
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if (argc == argvsize) { |
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argvsize += 8; |
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sbargv = srealloc(sbargv, sizeof(char *) * argvsize); |
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} |
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if (*buf == ':' && colon_special) { |
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sbargv[argc++] = buf+1; |
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*buf = 0; |
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} else { |
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s = strpbrk(buf, " "); |
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if (s) { |
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*s++ = 0; |
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while (*s == ' ') |
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s++; |
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} else { |
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s = buf + strlen(buf); |
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} |
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sbargv[argc++] = buf; |
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buf = s; |
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} |
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} |
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*argv_ptr = sbargv; |
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return argc; |
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} |
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/*************************************************************************/ |
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/*************************************************************************/ |
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int process_init(int ac, char **av) |
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{ |
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cb_recvmsg = register_callback("receive message"); |
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if (cb_recvmsg < 0) { |
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log("process_init: register_callback() failed\n"); |
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return 0; |
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} |
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return 1; |
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} |
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/*************************************************************************/ |
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void process_cleanup(void) |
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{ |
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unregister_callback(cb_recvmsg); |
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free(sbargv); |
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sbargv = NULL; |
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} |
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/*************************************************************************/ |
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/* process: Main processing routine. Takes the string in inbuf (global |
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* variable) and does something appropriate with it. */ |
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void process(void) |
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{ |
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char source[64]; |
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char cmd[64]; |
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char buf[512]; /* Longest legal IRC command line */ |
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char *s; |
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int ac; /* Parameters for the command */ |
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char **av; |
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/* If debugging, log the buffer. */ |
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log_debug(1, "Received: %s", inbuf); |
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/* First make a copy of the buffer so we have the original in case we |
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* crash - in that case, we want to know what we crashed on. */ |
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strbcpy(buf, inbuf); |
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/* Split the buffer into pieces. */ |
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if (*buf == ':') { |
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s = strpbrk(buf, " "); |
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if (!s) |
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return; |
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*s = 0; |
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while (isspace(*++s)) |
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; |
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strbcpy(source, buf+1); |
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strmove(buf, s); |
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} else { |
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*source = 0; |
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} |
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if (!*buf) |
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return; |
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s = strpbrk(buf, " "); |
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if (s) { |
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*s = 0; |
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while (isspace(*++s)) |
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; |
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} else |
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s = buf + strlen(buf); |
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strbcpy(cmd, buf); |
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ac = split_buf(s, &av, 1); |
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/* Do something with the message. */ |
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if (call_callback_4(cb_recvmsg, source, cmd, ac, av) <= 0) { |
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Message *m = find_message(cmd); |
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if (m) { |
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if (m->func) |
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m->func(source, ac, av); |
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} else { |
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log("unknown message from server (%s)", inbuf); |
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} |
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} |
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/* Finally, clear the first byte of `inbuf' to signal that we're |
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* finished processing. */ |
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*inbuf = 0; |
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} |
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/*************************************************************************/ |
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/* |
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* Local variables: |
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* c-file-style: "stroustrup" |
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* c-file-offsets: ((case-label . *) (statement-case-intro . *)) |
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* indent-tabs-mode: nil |
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* End: |
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* |
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* vim: expandtab shiftwidth=4: |
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*/ |
