mdw@git.distorted.org.uk Git - qmail/blob - headerbody.c

   1 #include "stralloc.h"
   2 #include "substdio.h"
   3 #include "getln.h"
   4 #include "hfield.h"
   5 #include "headerbody.h"
   6
   7 static int getsa(ss,sa,match)
   8 substdio *ss;
   9 stralloc *sa;
  10 int *match;
  11 {
  12  if (!*match) return 0;
  13  if (getln(ss,sa,match,'\n') == -1) return -1;
  14  if (*match) return 1;
  15  if (!sa->len) return 0;
  16  if (!stralloc_append(sa,"\n")) return -1;
  17  return 1;
  18 }
  19
  20 static stralloc line = {0};
  21 static stralloc nextline = {0};
  22
  23 int headerbody(ss,dohf,hdone,dobl)
  24 substdio *ss;
  25 void (*dohf)();
  26 void (*hdone)();
  27 void (*dobl)();
  28 {
  29  int match;
  30  int flaglineok;
  31  match = 1;
  32  flaglineok = 0;
  33  for (;;)
  34   {
  35    switch(getsa(ss,&nextline,&match))
  36     {
  37      case -1:
  38        return -1;
  39      case 0:
  40        if (flaglineok) dohf(&line);
  41        hdone();
  42        /* no message body; could insert blank line here */
  43        return 0;
  44     }
  45    if (flaglineok)
  46     {
  47      if ((nextline.s[0] == ' ') || (nextline.s[0] == '\t'))
  48       {
  49        if (!stralloc_cat(&line,&nextline)) return -1;
  50        continue;
  51       }
  52      dohf(&line);
  53     }
  54    if (nextline.len == 1)
  55     {
  56      hdone();
  57      dobl(&nextline);
  58      break;
  59     }
  60    if (stralloc_starts(&nextline,"From "))
  61     {
  62      if (!stralloc_copys(&line,"MBOX-Line: ")) return -1;
  63      if (!stralloc_cat(&line,&nextline)) return -1;
  64     }
  65    else
  66      if (hfield_valid(nextline.s,nextline.len))
  67       {
  68        if (!stralloc_copy(&line,&nextline)) return -1;
  69       }
  70      else
  71       {
  72        hdone();
  73        if (!stralloc_copys(&line,"\n")) return -1;
  74        dobl(&line);
  75        dobl(&nextline);
  76        break;
  77       }
  78    flaglineok = 1;
  79   }
  80  for (;;)
  81    switch(getsa(ss,&nextline,&match))
  82     {
  83      case -1: return -1;
  84      case 0: return 0;
  85      case 1: dobl(&nextline);
  86     }
  87 }