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#include <stdio.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <utime.h>
#include "defs.h"
#include "mail.h"
bool is_From_line( char* line ) {
if( !strncmp( line, "From", 4 ) )
return true;
return false;
}
bool is_blank_line( char* line ) {
while( *line ) {
if( *line != ' ' && *line != '\n' && *line != '\t' && *line != '\r' )
return false;
line++;
}
return true;
}
char* cfg_file() {
static char buff[1024];
sprintf(buff, "%s/.glbiffrc", getenv("HOME"));
return buff;
}
/*
* returns number of messages found in folder
*/
int count_messages( char* filename ) {
struct stat st;
if( stat( filename, &st ) ) {
fprintf( stderr, "Unable to stat %s\n", filename );
return -1;
}
FILE* fl = fopen( filename, "r" );
if( !fl ) {
fprintf( stderr, "Unable to open %s\n", filename );
return -1;
}
char line[1024];
int messages = 0;
bool looking_for_header = true;
bool in_header = false;
bool last_line_blank = true;
fgets( line, 1024, fl );
while( !feof( fl ) ) {
if( looking_for_header && is_From_line( line ) && last_line_blank ) {
in_header = true;
looking_for_header = false;
messages++;
} else if( in_header && is_blank_line( line ) ) {
in_header = false;
looking_for_header = true;
}
last_line_blank = is_blank_line( line );
fgets( line, 1024, fl );
}
fclose(fl);
// here just restore the modify and access times to what they were
struct utimbuf buf;
buf.actime = st.st_atime;
buf.modtime = st.st_mtime;
utime( filename, &buf );
return messages;
}
/*
* returns the file size of the mailbox
*/
ulong check_mailbox( char *filename, bool& anymail, bool& unreadmail ) {
struct stat st;
off_t size;
if( stat( filename, &st ) ) {
#ifdef DEBUG
printf("!!!--Couldn't stat file %s .\n",filename);
#endif
anymail = false;
unreadmail = false;
size = 0;
} else {
size = st.st_size;
anymail = (size>0)? true: false;
unreadmail = (st.st_mtime > st.st_atime && size>0) ? true: false;
#ifdef DEBUG
printf( "unreadmail = %c\n", (unreadmail)?'y':'n' );
#endif
}
return size;
}
/*
* returns total number of messages
*/
int check_all_mailboxes( bool& anymail, bool& unreadmail, bool& newmail ) {
static ulong oldsize = 0;
ulong newsize = 0;
int messages = 0;
bool a, u;
bool usingmail = false;
anymail= false;
unreadmail= false;
newmail= false;
FILE* fl = fopen(cfg_file(),"r");
if( !fl ) {
printf("error opening file %s. Using $MAIL.\n",\
cfg_file());
usingmail = true;
}
#ifdef DEBUG
printf("read configuration file %s.\n",cfg_file());
#endif
char buff[1024];
if ( usingmail == false ) { /* HACK: Using .glbiffrc */
fgets( buff, 1024, fl );
while( !feof( fl ) ) {
if( buff[strlen(buff)-1] == '\n' )
buff[strlen(buff)-1] = 0; // kill off the trailing '\n'
// allow some different forms of mailbox spec. lines
char* mbox_name=buff+1;
if( *mbox_name==' ' || *mbox_name=='\t' )
mbox_name++;
#ifdef DEBUG
printf("checking mailbox: %s\n", mbox_name );
#endif
ulong size = check_mailbox( mbox_name, a, u );
anymail = (a)? true: anymail;
unreadmail = (u)? true: unreadmail;
newsize += size;
if( size && (buff[0]=='y' || buff[0]=='Y') )
messages += count_messages( mbox_name );
fgets( buff, 1024, fl ); // get the next mailbox name
}
}
else /* HACK: Using $MAIL environment variable */
{
char* mbox_name = getenv("MAIL");
if ( mbox_name = NULL ) {
printf("Error opening $MAIL. Aborting\n");
return -1;
}
ulong size = check_mailbox ( mbox_name, a, u );
anymail = (a)? true: anymail;
unreadmail = (u)? true: unreadmail;
newsize += size;
if( size )
messages += count_messages( mbox_name);
}
if( newsize > oldsize && unreadmail )
newmail = true;
oldsize = newsize;
#ifdef DEBUG
printf( "Messages in mailboxes : %d (new = %c)\n", messages, (unreadmail)?'y':'n' );
#endif
if (usingmail == false)
fclose(fl);
return messages;
}
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