4. Problem mit CD-Programm

Problem mit CD-Programm

  • ?

    Hallo,
    ich arbeite grade das buch "C und Linux" durch. Zwar funktionierte jedes programm super, aber jetzt halt nicht mehr 😞

    Konsolenauszug:

    cd4.c:1: error: syntax error before numeric constant
In file included from /usr/include/_G_config.h:44,
                 from /usr/include/libio.h:32,
                 from /usr/include/stdio.h:72,
                 from cd4.c:5:
/usr/include/gconv.h:72: error: type specifier omitted for parameter `size_t'
/usr/include/gconv.h:72: error: syntax error before `*' token
/usr/include/gconv.h:88: error: type specifier omitted for parameter `size_t'
/usr/include/gconv.h:88: error: syntax error before `*' token
/usr/include/gconv.h:97: error: type specifier omitted for parameter `size_t'
/usr/include/gconv.h:97: error: syntax error before `*' token
/usr/include/gconv.h:174: error: 'size_t' is used as a type, but is not defined
   as a type.
In file included from /usr/include/stdio.h:72,
                 from cd4.c:5:
/usr/include/libio.h:354: error: type specifier omitted for parameter `size_t'
/usr/include/libio.h:354: error: syntax error before `)' token
/usr/include/libio.h:363: error: type specifier omitted for parameter `size_t'
/usr/include/libio.h:363: error: syntax error before `)' token
/usr/include/libio.h:479: error: syntax error before `(' token
In file included from cd4.c:5:
/usr/include/stdio.h:286: error: type specifier omitted for parameter `size_t'
/usr/include/stdio.h:286: error: syntax error before `,' token
/usr/include/stdio.h:292: error: type specifier omitted for parameter `size_t'
/usr/include/stdio.h:292: error: syntax error before `*' token
/usr/include/stdio.h:304: error: type specifier omitted for parameter `size_t'
/usr/include/stdio.h:304: error: syntax error before `)' token
/usr/include/stdio.h:311: error: type specifier omitted for parameter `size_t'
/usr/include/stdio.h:311: error: syntax error before `)' token
/usr/include/stdio.h:353: error: type specifier omitted for parameter `size_t'
/usr/include/stdio.h:353: error: syntax error before `,' token
/usr/include/stdio.h:357: error: type specifier omitted for parameter `size_t'
/usr/include/stdio.h:357: error: syntax error before `,' token
/usr/include/stdio.h:562: error: type specifier omitted for parameter `size_t'
/usr/include/stdio.h:562: error: syntax error before `*' token
/usr/include/stdio.h:565: error: type specifier omitted for parameter `size_t'
/usr/include/stdio.h:565: error: syntax error before `*' token
/usr/include/stdio.h:575: error: type specifier omitted for parameter `size_t'
/usr/include/stdio.h:575: error: syntax error before `*' token
/usr/include/stdio.h:605: error: syntax error before `(' token
/usr/include/stdio.h:611: error: syntax error before `(' token
/usr/include/stdio.h:633: error: syntax error before `(' token
/usr/include/stdio.h:635: error: syntax error before `(' token
In file included from cd4.c:5:
/usr/include/stdio.h:836: error: syntax error before `}' token
In file included from cd4.c:6:
/usr/include/unistd.h:312: error: type specifier omitted for parameter `size_t'
/usr/include/unistd.h:312: error: syntax error before `)' token
/usr/include/unistd.h:318: error: type specifier omitted for parameter `size_t'
/usr/include/unistd.h:318: error: syntax error before `)' token
/usr/include/unistd.h:328: error: type specifier omitted for parameter `size_t'
/usr/include/unistd.h:328: error: syntax error before `,' token
/usr/include/unistd.h:336: error: type specifier omitted for parameter `size_t'
/usr/include/unistd.h:336: error: syntax error before `,' token
/usr/include/unistd.h:356: error: type specifier omitted for parameter `size_t'
/usr/include/unistd.h:356: error: syntax error before `,' token
/usr/include/unistd.h:360: error: type specifier omitted for parameter `size_t'
/usr/include/unistd.h:360: error: syntax error before `,' token
/usr/include/unistd.h:448: error: type specifier omitted for parameter `size_t'
/usr/include/unistd.h:448: error: syntax error before `)' token
In file included from cd4.c:6:
/usr/include/unistd.h:544: error: syntax error before `(' token
/usr/include/unistd.h:712: error: type specifier omitted for parameter `size_t'
/usr/include/unistd.h:712: error: syntax error before `)' token
/usr/include/unistd.h:740: error: type specifier omitted for parameter `size_t'
/usr/include/unistd.h:740: error: syntax error before `)' token
/usr/include/unistd.h:769: error: type specifier omitted for parameter `size_t'
/usr/include/unistd.h:769: error: syntax error before `)' token
In file included from cd4.c:6:
/usr/include/unistd.h:791: error: type specifier omitted for parameter `size_t'
/usr/include/unistd.h:791: error: syntax error before `)' token
/usr/include/unistd.h:798: error: type specifier omitted for parameter `size_t'
/usr/include/unistd.h:798: error: syntax error before `)' token
/usr/include/unistd.h:809: error: type specifier omitted for parameter `size_t'
/usr/include/unistd.h:809: error: syntax error before `)' token
/usr/include/unistd.h:811: error: type specifier omitted for parameter `size_t'
/usr/include/unistd.h:811: error: syntax error before `)' token
/usr/include/unistd.h:829: error: type specifier omitted for parameter `size_t'
/usr/include/unistd.h:829: error: syntax error before `,' token
/usr/include/stdio.h:781: error: previous declaration of `char* ctermid(char*)'
   with C++ linkage
/usr/include/unistd.h:1040: error: conflicts with new declaration with C
   linkage
In file included from /usr/include/sys/types.h:266,
                 from /usr/include/bits/fcntl.h:26,
                 from /usr/include/fcntl.h:33,
                 from cd4.c:8:
/usr/include/bits/pthreadtypes.h:48: error: 'size_t' is used as a type, but is
   not defined as a type.
/usr/include/bits/pthreadtypes.h:51: error: 'size_t' is used as a type, but is
   not defined as a type.
In file included from /usr/include/fcntl.h:33,
                 from cd4.c:8:
/usr/include/bits/fcntl.h:186: error: type specifier omitted for parameter `
   size_t'
/usr/include/bits/fcntl.h:186: error: syntax error before `)' token
cd4.c: In function `void err_exit(char*, int)':
cd4.c:14: error: `exit' undeclared (first use this function)
cd4.c:14: error: (Each undeclared identifier is reported only once for each
   function it appears in.)
cd4.c:62:3: warning: no newline at end of file

    Und hier nochmal der code:

    /*
 cdplay.c - Audio-CD abspielen
 */

# include <stdio.h>
# include <unistd.h>
# include <sys/ioctl.h>
# include <fcntl.h>
# include <linux/cdrom.h>

 void err_exit(char *err_text, int return_code)
 {
 perror(err_text);
 exit(return_code);
 }

 int main()
 {
 int fd;
 struct cdrom_tocentry toc_entry;
 struct cdrom_msf start_stop;

 if ((fd = open("/dev/cdrom", O_RDONLY)) == -1)

 err_exit("cdplay: Can’t open /dev/cdrom", 1);

 /* Anfang des 1. Stuecks */
 toc_entry.cdte_track = 1;
 toc_entry.cdte_format = CDROM_MSF;
 if (ioctl(fd, CDROMREADTOCENTRY, &toc_entry) == -1)
 err_exit("cdplay: ioctl() failed", 1);
 start_stop.cdmsf_min0
 = toc_entry.cdte_addr.msf.minute;
 start_stop.cdmsf_sec0
= toc_entry.cdte_addr.msf.second;
 start_stop.cdmsf_frame0
 = toc_entry.cdte_addr.msf.frame;

/* Ende des letzten Stuecks */
 toc_entry.cdte_track = CDROM_LEADOUT;
 toc_entry.cdte_format = CDROM_MSF;
 if (ioctl(fd, CDROMREADTOCENTRY, &toc_entry) == -1)
 err_exit("cdplay: ioctl() failed", 1);
 start_stop.cdmsf_min1
 = toc_entry.cdte_addr.msf.minute;
 start_stop.cdmsf_sec1
 = toc_entry.cdte_addr.msf.second;
 start_stop.cdmsf_frame1
 = toc_entry.cdte_addr.msf.frame;

 if (ioctl(fd, CDROMPLAYMSF, &start_stop) == -1)
 err_exit("cdplay: ioctl() failed", 1);

 printf("Press <RETURN> to stop playing.\n");
 getchar();

 if (ioctl(fd, CDROMSTOP) == -1)
 err_exit("cdplay: ioctl() failed", 1);

 close(fd);
 return(0);
 }

    Wie bringe ich das zum laufen? Ich will jetzt aber auch nicht zuviel daran herumfricklern

    0
  • N

    Wie versuchst Du denn, das zu kompilieren? Bei mir funktioniert das ohne Probleme, auch wenn Deine Code-Formatierung etwas gewöhnungsbedürftig ist.

    0
  • ?

    Mit gcc ??

    <><><><><><><>
    g++ cd.c -o cd

    ./cd
    <><><><><><><>

    0
  • N

    Das ist ein C-Programm, kein C++-Programm, daher kompilierst Du es mit gcc und nicht mit g++.

    ~ % gcc -o test test.c
~ % ./test                                                                                                             cdplay: Can't open /dev/cdrom: No medium found
~ %
    0
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