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/* |
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* flags.C: Functions to convert a flags table into a bitmask. |
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* |
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* Copyright © 2007 Pippijn van Steenhoven / The Ermyth Team |
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* Rights to this code are as documented in COPYING. |
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* |
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* |
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* Portions of this file were derived from sources bearing the following license: |
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* Rights to this code are documented in doc/pod/license.pod. |
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* Copyright © 2005-2007 Atheme Project (http://www.atheme.org) |
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*/ |
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|
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static char const rcsid[] = "$Id: flags.C,v 1.6 2007-09-05 11:23:15 pippijn Exp $"; |
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|
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#include "atheme.h" |
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#include <account/chanacs.h> |
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|
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#define FLAGS_ADD 0x1 |
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#define FLAGS_DEL 0x2 |
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|
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unsigned int ca_all = CA_ALL_ALL; |
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|
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static char flags_buf[128]; |
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|
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flags_table chanacs_flags[] = { |
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{ 'v', CA_VOICE }, |
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{ 'V', CA_AUTOVOICE }, |
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{ 'o', CA_OP }, |
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{ 'O', CA_AUTOOP }, |
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{ 't', CA_TOPIC }, |
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{ 's', CA_SET }, |
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{ 'r', CA_REMOVE }, |
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{ 'i', CA_INVITE }, |
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{ 'R', CA_RECOVER }, |
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{ 'f', CA_FLAGS }, |
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{ 'h', CA_HALFOP }, |
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{ 'H', CA_AUTOHALFOP }, |
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{ 'A', CA_ACLVIEW }, |
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{ 'F', CA_FOUNDER }, |
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{ 'b', CA_AKICK }, |
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{ 0, 0 } |
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}; |
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|
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/* Construct bitmasks to be added and removed |
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* Postcondition *addflags & *removeflags == 0 |
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* -- jilles */ |
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void |
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flags_make_bitmasks (char const * const string, struct flags_table table[], unsigned int *addflags, unsigned int *removeflags) |
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{ |
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int status = FLAGS_ADD; |
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char const *s = string; |
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short i = 0; |
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|
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*addflags = *removeflags = 0; |
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while (*s) |
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{ |
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switch (*s) |
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{ |
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case '+': |
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status = FLAGS_ADD; |
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break; |
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|
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case '-': |
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status = FLAGS_DEL; |
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break; |
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|
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case '=': |
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*addflags = 0; |
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*removeflags = 0xFFFFFFFF; |
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status = FLAGS_ADD; |
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break; |
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|
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case '*': |
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if (status == FLAGS_ADD) |
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{ |
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*addflags = 0xFFFFFFFF; |
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*removeflags = 0; |
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|
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/* If this is chanacs_flags[], remove the ban flag. */ |
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if (table == chanacs_flags) |
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{ |
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*addflags &= ~CA_FOUNDER; |
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*removeflags |= CA_AKICK; |
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} |
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} |
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else if (status == FLAGS_DEL) |
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{ |
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*addflags = 0; |
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*removeflags = 0xFFFFFFFF; |
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} |
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break; |
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|
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default: |
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for (i = 0; table[i].flag; i++) |
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if (table[i].flag == *s) |
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{ |
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if (status == FLAGS_ADD) |
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{ |
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*addflags |= table[i].value; |
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*removeflags &= ~table[i].value; |
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} |
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else if (status == FLAGS_DEL) |
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{ |
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*addflags &= ~table[i].value; |
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*removeflags |= table[i].value; |
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} |
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} |
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} |
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|
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(void) *s++; |
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} |
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|
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return; |
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} |
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|
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unsigned int |
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flags_to_bitmask (char const * const string, struct flags_table table[], unsigned int flags) |
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{ |
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int bitmask = (flags ? flags : 0x0); |
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int status = FLAGS_ADD; |
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char const *s = string; |
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short i = 0; |
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|
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while (*s) |
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{ |
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switch (*s) |
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{ |
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case '+': |
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status = FLAGS_ADD; |
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break; |
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|
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case '-': |
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status = FLAGS_DEL; |
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break; |
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|
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case '=': |
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bitmask = 0; |
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status = FLAGS_ADD; |
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break; |
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|
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case '*': |
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if (status == FLAGS_ADD) |
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{ |
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bitmask = 0xFFFFFFFF; |
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|
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/* If this is chanacs_flags[], do privs only */ |
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if (table == chanacs_flags) |
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bitmask &= CA_ALLPRIVS & ca_all & ~CA_FOUNDER; |
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} |
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else if (status == FLAGS_DEL) |
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bitmask = 0; |
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break; |
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|
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default: |
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for (i = 0; table[i].flag; i++) |
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if (table[i].flag == *s) |
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{ |
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if (status == FLAGS_ADD) |
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bitmask |= table[i].value; |
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else if (status == FLAGS_DEL) |
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bitmask &= ~table[i].value; |
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} |
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} |
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|
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(void) *s++; |
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} |
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|
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return bitmask; |
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} |
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|
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char * |
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bitmask_to_flags (unsigned int flags, struct flags_table table[]) |
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{ |
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char *bptr; |
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short i = 0; |
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|
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bptr = flags_buf; |
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|
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*bptr++ = '+'; |
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|
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for (i = 0; table[i].flag; i++) |
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if (table[i].value & flags) |
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*bptr++ = table[i].flag; |
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|
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*bptr++ = '\0'; |
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|
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return flags_buf; |
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} |
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|
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char * |
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bitmask_to_flags2 (unsigned int addflags, unsigned int removeflags, struct flags_table table[]) |
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{ |
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char *bptr; |
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short i = 0; |
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|
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bptr = flags_buf; |
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|
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if (removeflags) |
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{ |
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*bptr++ = '-'; |
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for (i = 0; table[i].flag; i++) |
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if (table[i].value & removeflags) |
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*bptr++ = table[i].flag; |
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} |
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if (addflags) |
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{ |
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*bptr++ = '+'; |
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for (i = 0; table[i].flag; i++) |
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if (table[i].value & addflags) |
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*bptr++ = table[i].flag; |
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} |
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|
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*bptr++ = '\0'; |
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|
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return flags_buf; |
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} |
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|
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/* flags a non-founder with +f and these flags is allowed to set -- jilles */ |
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unsigned int |
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allow_flags (unsigned int flags) |
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{ |
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flags &= ~CA_AKICK; |
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if (flags & CA_REMOVE) |
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flags |= CA_AKICK; |
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if (flags & CA_OP) |
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flags |= CA_AUTOOP; |
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if (flags & CA_HALFOP) |
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flags |= CA_AUTOHALFOP; |
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if (flags & CA_VOICE) |
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flags |= CA_AUTOVOICE; |
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return flags; |
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} |
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|
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void |
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update_chanacs_flags (void) |
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{ |
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ca_all = CA_ALL_ALL; |
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if (!ircd->uses_halfops) |
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ca_all &= ~(CA_HALFOP | CA_AUTOHALFOP); |
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} |
