author | viric@llimona |
Thu, 06 Apr 2006 01:47:35 +0200 | |
changeset 18 | 84fa30ea0b0d |
parent 16 | de00e98450eb |
child 26 | 7227789ca718 |
permissions | -rw-r--r-- |
1 | 1 |
#include <unistd.h> // Per les crides a fitxer |
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#include <stdio.h> // Per l'I/O de stdin/stdout |
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#include <errno.h> // Pels errors de les crides a fitxer |
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#include <string.h> // Per strerror() |
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#include <stdlib.h> // Per abort() |
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#include <sys/types.h> // Per crides de fitxer |
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#include <sys/stat.h> // Per crides de fitxer |
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#include <fcntl.h> // Per crides de fitxer |
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#include <stdbool.h> // Per les macros bool,true,false |
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#include <unistd.h> // Pel lockf() |
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#include <fcntl.h> // Pel lockf() |
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#include "rfc3164.h" |
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void showHelp(const char * restrict program) |
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{ |
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printf("Usage: %s <named_fifo>\n", program); |
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} |
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bool isNamedPipe(const char * restrict path) |
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{ |
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struct stat tmpStatus; |
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int result; |
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result = stat(path, &tmpStatus); |
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if (result == -1) |
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{ |
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15
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
14
diff
changeset
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fprintf(stderr, "Error trying to stat the file: %s\n", |
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strerror(errno)); |
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abort(); |
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} |
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if (S_ISFIFO(tmpStatus.st_mode)) |
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return true; |
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return false; |
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} |
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int pipe_server(const char * restrict filename) |
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{ |
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int fd_entrada; |
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char missatge[MESSAGE_LENGTH]; |
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int status; |
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struct flock blocking; |
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blocking.l_type = F_RDLCK; |
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blocking.l_whence = SEEK_SET; |
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blocking.l_start = 0; |
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blocking.l_len = 0; |
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while(true) |
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{ |
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/* Obrim la named fifo síncrona. */ |
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fd_entrada = open(filename, O_RDONLY); |
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if (fd_entrada < 0) { |
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15
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
14
diff
changeset
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fprintf(stderr, "Error opening the named pipe: %s\n", |
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strerror(errno)); |
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return 1; |
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} |
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status = fcntl(fd_entrada, F_SETLKW, &blocking); |
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if (fd_entrada < 0) { |
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15
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
14
diff
changeset
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fprintf(stderr, "Error locking the named pipe: %s\n", |
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strerror(errno)); |
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return 1; |
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} |
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while ((status = read(fd_entrada, missatge, |
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MESSAGE_LENGTH)) > 0) |
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{ |
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process_message(missatge); |
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fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
14
diff
changeset
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/* Debug */ |
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
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diff
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if(!strcmp(missatge,"close")) |
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
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diff
changeset
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{ |
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
14
diff
changeset
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/* Code duplication !! */ |
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
14
diff
changeset
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blocking.l_type = F_UNLCK; |
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
14
diff
changeset
|
79 |
status = fcntl(fd_entrada, F_SETLKW, &blocking); |
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
14
diff
changeset
|
80 |
if (fd_entrada < 0) { |
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
14
diff
changeset
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fprintf(stderr, |
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
14
diff
changeset
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"Error unlocking the named " |
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
14
diff
changeset
|
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"pipe: %s\n", |
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
14
diff
changeset
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strerror(errno)); |
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
14
diff
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abort(); |
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
14
diff
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} |
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
14
diff
changeset
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close (fd_entrada); |
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
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diff
changeset
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/* End of code duplication */ |
16
de00e98450eb
Versió 1 quasi per entregar. Falta molt RFC per implementar.
viric@llimona
parents:
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diff
changeset
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return 0; |
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fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
14
diff
changeset
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} |
8 | 91 |
} |
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if (status < 0) |
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{ |
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15
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
14
diff
changeset
|
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fprintf(stderr, "Error reading the named pipe: %s\n", |
8 | 96 |
strerror(errno)); |
15
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
14
diff
changeset
|
97 |
/* Code duplication !! */ |
8 | 98 |
blocking.l_type = F_UNLCK; |
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status = fcntl(fd_entrada, F_SETLKW, &blocking); |
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if (fd_entrada < 0) { |
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15
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
14
diff
changeset
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fprintf(stderr, |
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
14
diff
changeset
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"Error unlocking the named pipe: %s\n", |
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strerror(errno)); |
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abort(); |
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} |
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close (fd_entrada); |
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15
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
14
diff
changeset
|
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/* End of code duplication */ |
8 | 108 |
return 1; |
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} |
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16
de00e98450eb
Versió 1 quasi per entregar. Falta molt RFC per implementar.
viric@llimona
parents:
15
diff
changeset
|
110 |
/* Code duplication !! */ |
de00e98450eb
Versió 1 quasi per entregar. Falta molt RFC per implementar.
viric@llimona
parents:
15
diff
changeset
|
111 |
blocking.l_type = F_UNLCK; |
de00e98450eb
Versió 1 quasi per entregar. Falta molt RFC per implementar.
viric@llimona
parents:
15
diff
changeset
|
112 |
status = fcntl(fd_entrada, F_SETLKW, &blocking); |
de00e98450eb
Versió 1 quasi per entregar. Falta molt RFC per implementar.
viric@llimona
parents:
15
diff
changeset
|
113 |
if (fd_entrada < 0) { |
de00e98450eb
Versió 1 quasi per entregar. Falta molt RFC per implementar.
viric@llimona
parents:
15
diff
changeset
|
114 |
fprintf(stderr, |
de00e98450eb
Versió 1 quasi per entregar. Falta molt RFC per implementar.
viric@llimona
parents:
15
diff
changeset
|
115 |
"Error unlocking the named pipe: %s\n", |
de00e98450eb
Versió 1 quasi per entregar. Falta molt RFC per implementar.
viric@llimona
parents:
15
diff
changeset
|
116 |
strerror(errno)); |
de00e98450eb
Versió 1 quasi per entregar. Falta molt RFC per implementar.
viric@llimona
parents:
15
diff
changeset
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abort(); |
de00e98450eb
Versió 1 quasi per entregar. Falta molt RFC per implementar.
viric@llimona
parents:
15
diff
changeset
|
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} |
de00e98450eb
Versió 1 quasi per entregar. Falta molt RFC per implementar.
viric@llimona
parents:
15
diff
changeset
|
119 |
close (fd_entrada); |
de00e98450eb
Versió 1 quasi per entregar. Falta molt RFC per implementar.
viric@llimona
parents:
15
diff
changeset
|
120 |
/* End of code duplication */ |
8 | 121 |
} |
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} |
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int main(int argn, char **argv) |
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{ |
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0 | 127 |
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/* Processem els paràmetres d'entrada */ |
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if (argn != 2) { |
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showHelp(argv[0]); |
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return 2; |
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} |
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/* Comprovem que existeix i és una named pipe */ |
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/* !!! */ |
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1 | 136 |
if(!isNamedPipe(argv[1])) // Abortarà si falla |
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{ |
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15
fea6e87812f0
Now everything works - the rfc3164 message parser must be improved.
viric@llimona
parents:
14
diff
changeset
|
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fprintf(stderr, "The file is not of a named pipe.\n"); |
1 | 139 |
abort(); |
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}; |
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0 | 141 |
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8 | 143 |
return pipe_server(argv[1]); |
0 | 144 |
} |