/*++ /* NAME /* cleanup_out 3 /* SUMMARY /* record output support /* SYNOPSIS /* #include "cleanup.h" /* /* int CLEANUP_OUT_OK(state) /* CLEANUP_STATE *state; /* /* void cleanup_out(state, type, data, len) /* CLEANUP_STATE *state; /* int type; /* const char *data; /* int len; /* /* void cleanup_out_string(state, type, str) /* CLEANUP_STATE *state; /* int type; /* const char *str; /* /* void CLEANUP_OUT_BUF(state, type, buf) /* CLEANUP_STATE *state; /* int type; /* VSTRING *buf; /* /* void cleanup_out_format(state, type, format, ...) /* CLEANUP_STATE *state; /* int type; /* const char *format; /* DESCRIPTION /* This module writes records to the output stream. /* /* CLEANUP_OUT_OK() is a macro that evaluates to non-zero /* as long as it makes sense to produce output. All output /* routines below check for this condition. /* /* cleanup_out() is the main record output routine. It writes /* one record of the specified type, with the specified data /* and length to the output stream. /* /* cleanup_out_string() outputs one string as a record. /* /* CLEANUP_OUT_BUF() is an unsafe macro that outputs /* one string buffer as a record. /* /* cleanup_out_format() formats its arguments and writes /* the result as a record. /* LICENSE /* .ad /* .fi /* The Secure Mailer license must be distributed with this software. /* AUTHOR(S) /* Wietse Venema /* IBM T.J. Watson Research /* P.O. Box 704 /* Yorktown Heights, NY 10598, USA /*--*/ /* System library. */ #include <sys_defs.h> #include <errno.h> #include <stdlib.h> /* 44BSD stdarg.h uses abort() */ #include <stdarg.h> #include <string.h> /* Utility library. */ #include <msg.h> #include <vstring.h> #include <vstream.h> /* Global library. */ #include <record.h> #include <rec_type.h> #include <cleanup_user.h> #include <mail_params.h> /* Application-specific. */ #include "cleanup.h" /* cleanup_out - output one single record */ void cleanup_out(CLEANUP_STATE *state, int type, const char *string, int len) { int err = 0; /* * Long message header lines have to be read and written as multiple * records. Other header/body content, and envelope data, is copied one * record at a time. Be sure to not skip a zero-length request. * * XXX We don't know if we're writing a message header or not, but that is * not a problem. A REC_TYPE_NORM or REC_TYPE_CONT record can always be * chopped up into an equivalent set of REC_TYPE_CONT plus REC_TYPE_NORM * records. */ if (CLEANUP_OUT_OK(state) == 0) return; #define TEXT_RECORD(t) ((t) == REC_TYPE_NORM || (t) == REC_TYPE_CONT) do { if (len > var_line_limit && TEXT_RECORD(type)) { err = rec_put(state->dst, REC_TYPE_CONT, string, var_line_limit); string += var_line_limit; len -= var_line_limit; } else { err = rec_put(state->dst, type, string, len); break; } } while (len > 0 && err >= 0); if (err < 0) { if (errno == EFBIG) { msg_warn("%s: queue file size limit exceeded", state->queue_id); state->errs |= CLEANUP_STAT_SIZE; } else { msg_warn("%s: write queue file: %m", state->queue_id); state->errs |= CLEANUP_STAT_WRITE; } } } /* cleanup_out_string - output string to one single record */ void cleanup_out_string(CLEANUP_STATE *state, int type, const char *string) { cleanup_out(state, type, string, strlen(string)); } /* cleanup_out_format - output one formatted record */ void cleanup_out_format(CLEANUP_STATE *state, int type, const char *fmt,...) { static VSTRING *vp; va_list ap; if (vp == 0) vp = vstring_alloc(100); va_start(ap, fmt); vstring_vsprintf(vp, fmt, ap); va_end(ap); CLEANUP_OUT_BUF(state, type, vp); }