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Rev 6790 Rev 8155
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/* File manipulation */
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/* File manipulation */
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enum{is_file, is_dir, is_exec, is_fifo, is_socket, is_unknown};
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enum{is_file, is_dir, is_exec, is_fifo, is_socket, is_unknown};
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struct stat ftst;
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struct stat ftst;
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        /* A simple front-end of stat(). */
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/* A simple front-end of stat(). */
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int ftest(char *fname)
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int ftest(char *fname)
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{
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{
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    if(strstr(fname,"..")!=NULL) return -1; /* parent directory not allowed */
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    if(strstr(fname,"..")!=NULL) return -1; /* parent directory not allowed */
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    if(stat(fname,&ftst)) return -1;
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    if(stat(fname,&ftst)) return -1;
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    if(S_ISREG(ftst.st_mode)) {
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    if(S_ISREG(ftst.st_mode)) {
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    if(S_ISFIFO(ftst.st_mode)) return is_fifo;
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    if(S_ISFIFO(ftst.st_mode)) return is_fifo;
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    if(S_ISSOCK(ftst.st_mode)) return is_socket;
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    if(S_ISSOCK(ftst.st_mode)) return is_socket;
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    return is_unknown;
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    return is_unknown;
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}
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}
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        /* read the content of a file */
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/* read the content of a file */
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void readfile(char *fname, char buf[], long int buflen)
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void readfile(char *fname, char buf[], long int buflen)
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{
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{
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    int fd, st;
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    int fd, st;
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    long int l, lc;
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    long int l, lc;
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    buf[0]=0;
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    buf[0]=0;
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    lc=read(fd,buf,l); close(fd);
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    lc=read(fd,buf,l); close(fd);
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    if(lc!=l) {buf[0]=0; return;}
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    if(lc!=l) {buf[0]=0; return;}
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    buf[lc]=0; _tolinux(buf); return;
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    buf[lc]=0; _tolinux(buf); return;
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}
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}
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        /* datafile structure: number of records.
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/* datafile structure: number of records.
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         * tag=1 if direct access */
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 * tag=1 if direct access
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 */
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unsigned int datafile_recordnum(char *p)
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unsigned int datafile_recordnum(char *p)
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{
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{
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    char *pp, buf[MAX_FILELEN+1];
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    char *pp, buf[MAX_FILELEN+1];
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    int i;
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    int i;
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    readfile(p,buf,sizeof(buf));
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    readfile(p,buf,sizeof(buf));
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    if(buf[0]!=tag_string[1]) i=0; else i=1;
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    if(buf[0]!=tag_string[1]) i=0; else i=1;
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    for(pp=strstr(buf,tag_string); pp!=NULL; i++, pp=strstr(pp+1,tag_string));
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    for(pp=strstr(buf,tag_string); pp!=NULL; i++, pp=strstr(pp+1,tag_string));
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    return i;
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    return i;
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}
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}
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        /* datafile structure: find record n, starting from 1 */
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/* datafile structure: find record n, starting from 1 */
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char *datafile_fnd_record(char *p, int n, char bf[])
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char *datafile_fnd_record(char *p, int n, char bf[])
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{
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{
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    char *pp, *p2, buf[MAX_FILELEN+1];
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    char *pp, *p2, buf[MAX_FILELEN+1];
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    int i;
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    int i;
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