95 lines
1.5 KiB
C
95 lines
1.5 KiB
C
/*
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** Copyright 1998 - 1999 Double Precision, Inc.
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** See COPYING for distribution information.
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*/
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/*
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** $Id$
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*/
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#include "rfc822.h"
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#include <stdlib.h>
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static void cntlen(char c, void *p)
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{
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c=c;
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++ *(size_t *)p;
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}
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static void cntlensep(const char *p, void *ptr)
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{
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while (*p) cntlen(*p++, ptr);
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}
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static void saveaddr(char c, void *ptr)
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{
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*(*(char **)ptr)++=c;
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}
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static void saveaddrsep(const char *p, void *ptr)
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{
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while (*p) saveaddr(*p++, ptr);
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}
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char *rfc822_getaddrs(const struct rfc822a *rfc)
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{
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size_t addrbuflen=0;
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char *addrbuf, *ptr;
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rfc822_print(rfc, &cntlen, &cntlensep, &addrbuflen);
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if (!(addrbuf=malloc(addrbuflen+1)))
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return (0);
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ptr=addrbuf;
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rfc822_print(rfc, &saveaddr, &saveaddrsep, &ptr);
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addrbuf[addrbuflen]=0;
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return (addrbuf);
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}
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static void saveaddrsep_wrap(const char *p, void *ptr)
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{
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int c;
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while ((c=*p++) != 0)
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{
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if (c == ' ') c='\n';
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saveaddr(c, ptr);
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}
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}
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char *rfc822_getaddrs_wrap(const struct rfc822a *rfc, int w)
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{
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size_t addrbuflen=0;
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char *addrbuf, *ptr, *start, *lastnl;
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rfc822_print(rfc, &cntlen, &cntlensep, &addrbuflen);
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if (!(addrbuf=malloc(addrbuflen+1)))
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return (0);
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ptr=addrbuf;
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rfc822_print(rfc, &saveaddr, &saveaddrsep_wrap, &ptr);
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addrbuf[addrbuflen]=0;
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for (lastnl=0, start=ptr=addrbuf; *ptr; )
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{
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while (*ptr && *ptr != '\n') ptr++;
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if (ptr-start < w)
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{
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if (lastnl) *lastnl=' ';
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lastnl=ptr;
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if (*ptr) ++ptr;
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}
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else
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{
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if (lastnl)
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start=lastnl+1;
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else
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{
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start=ptr+1;
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if (*ptr) ++ptr;
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}
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lastnl=0;
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}
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}
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return (addrbuf);
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}
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