ali@0: /*
ali@0:  * This program converts an attached file (which has previously been
ali@0:  * downloaded from sourceforge) into bugzilla-style XML.
ali@0:  */
ali@0: 
ali@0: #include <stdlib.h>
ali@0: #include <stdio.h>
ali@0: #include <string.h>
ali@0: #ifdef __linux__
ali@0: #include <getopt.h>
ali@0: #endif
ali@0: 
ali@0: #ifdef __linux__
ali@0: static struct option long_options[] = {
ali@0:     {"type", 1, 0, 't'},
ali@0:     {"id", 1, 0, 'i'},
ali@0:     {"patch", 0, 0, 'p'},
ali@0:     {0, 0, 0, 0}
ali@0: };
ali@0: 
ali@0: static char *long_option_str(char opt)
ali@0: {
ali@0:     int i;
ali@0:     static char buf[100];
ali@0:     for(i=0;long_options[i].name;i++)
ali@0: 	if (long_options[i].val==opt)
ali@0: 	{
ali@0: 	    sprintf(buf,", --%s",long_options[i].name);
ali@0: 	    return buf;
ali@0: 	}
ali@0:     return "";
ali@0: }
ali@0: #else
ali@0: #define long_option_str(opt)    ""
ali@0: #endif
ali@0: 
ali@0: usage()
ali@0: {
ali@0:     fprintf(stderr,"Usage: xml_attached_file [OPTION] file\n");
ali@0:     fprintf(stderr,"\n");
ali@0:     fprintf(stderr,"  -t%s=MIME-type	    MIME type to use\n",
ali@0:       long_option_str('t'));
ali@0:     fprintf(stderr,"  -i%s=ID	            Attachment ID to use\n",
ali@0:       long_option_str('i'));
ali@0:     fprintf(stderr,"  -p%s	            Mark attachment as a patch\n",
ali@0:       long_option_str('p'));
ali@0:     exit(1);
ali@0: }
ali@0: 
ali@0: /* Note that we limit line lengths to 76 characters following RFC 2045
ali@0:  * (bugzilla uses MIME::Base64). This isn't strictly compliant with RFC 4648.
ali@0:  */
ali@0: static void base64_encode(FILE *in,FILE *out)
ali@0: {
ali@0:     int ng=0;		/* 76 characters == 19 groups */
ali@0:     size_t nb;
ali@0:     unsigned char bytes[3];
ali@0:     const char alphabet[64]=
ali@0:       "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
ali@0:     while ((nb=fread(bytes,1,3,in))==3)
ali@0:     {
ali@0: 	if (ng++>=19)
ali@0: 	{
ali@0: 	    putc('\n',out);
ali@0: 	    ng=1;
ali@0: 	}
ali@0: 	putc(alphabet[bytes[0]>>2],out);
ali@0: 	putc(alphabet[(bytes[0]<<4|bytes[1]>>4)&0x3F],out);
ali@0: 	putc(alphabet[(bytes[1]<<2|bytes[2]>>6)&0x3F],out);
ali@0: 	putc(alphabet[bytes[2]&0x3F],out);
ali@0:     }
ali@0:     if (nb)
ali@0:     {
ali@0: 	if (ng>=19)
ali@0: 	    putc('\n',out);
ali@0: 	putc(alphabet[bytes[0]>>2],out);
ali@0: 	if (nb==2)
ali@0: 	{
ali@0: 	    putc(alphabet[(bytes[0]<<4|bytes[1]>>4)&0x3F],out);
ali@0: 	    putc(alphabet[bytes[1]<<2&0x3F],out);
ali@0: 	}
ali@0: 	else
ali@0: 	{
ali@0: 	    putc(alphabet[bytes[0]<<4&0x3F],out);
ali@0: 	    putc('=',out);
ali@0: 	}
ali@0: 	putc('=',out);
ali@0:     }
ali@0: }
ali@0: 
ali@0: int main(int argc,char **argv)
ali@0: {
ali@0:     int c;
ali@0:     FILE *fp;
ali@0:     unsigned long id=0;
ali@0:     int ispatch=0;
ali@0:     char *type=NULL;
ali@0:     for(;;)
ali@0:     {
ali@0: #ifdef __linux__
ali@0: 	int option_index=0;
ali@0: 	c=getopt_long(argc,argv,"t:i:p",long_options,&option_index);
ali@0: #else
ali@0: 	c=getopt(argc,argv,"t:i:p");
ali@0: #endif
ali@0: 	if (c<0)
ali@0: 	    break;
ali@0: 	switch(c)
ali@0: 	{
ali@0: 	    case 't':
ali@0: 		type=optarg;
ali@0: 		break;
ali@0: 	    case 'i':
ali@0: 		id=strtoul(optarg,NULL,10);
ali@0: 		break;
ali@0: 	    case 'p':
ali@0: 		ispatch=1;
ali@0: 		break;
ali@0: 	    default:
ali@0: 		usage();
ali@0: 	}
ali@0:     }
ali@0:     if (optind<argc)
ali@0:     {
ali@0: 	fp=fopen(argv[optind],"rb");
ali@0: 	if (!fp)
ali@0: 	{
ali@0: 	    perror(argv[optind]);
ali@0: 	    exit(1);
ali@0: 	}
ali@0:     }
ali@0:     else
ali@0: 	fp=stdin;
ali@0:     printf("<attachment ispatch=\"%d\">\n",ispatch);
ali@0:     if (id)
ali@0: 	printf("  <attachid>%lu</attachid>\n",id);
ali@0:     if (type)
ali@0: 	printf("  <type>%s</type>\n",type);
ali@0:     printf("  <data encoding=\"base64\">\n");
ali@0:     base64_encode(fp,stdout);
ali@0:     printf("\n  </data>\n");
ali@0:     printf("</attachment>\n");
ali@0:     exit(0);
ali@0: }