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Annotation of coherent/d/usr/src/examples/freopen.c, revision 1.1.1.1

1.1       root        1: #include <stdio.h>
                      2: #define MAXLINE 128
                      3: 
                      4: char buffer[MAXLINE];
                      5: 
                      6: main(argc,argv)
                      7: int argc; 
                      8: char *argv[];
                      9: {
                     10:        FILE *fpin;
                     11:        FILE *fpout;
                     12: 
                     13:        if (argc != 3 && argc != 4)
                     14:                fatal("Usage: freopen pattern infile [outfile]");
                     15:        if ((fpin = fopen(argv[2], "r")) == NULL)
                     16:                fatal("Cannot open input file");
                     17: 
                     18:        fpout = stdout;
                     19:        if (argc == 4)
                     20:                if ((fpout = freopen(argv[3], "w", stdout))
                     21:                                                == NULL)        
                     22:                        fatal("Cannot open output file");
                     23: 
                     24:        while (fgets(buffer, MAXLINE, fpin) != NULL) {
                     25:                if (pnmatch(buffer, argv[1], 1)) 
                     26:                        fputs(buffer, stdout);  
                     27:        }
                     28:        exit(0);
                     29: }
                     30: 
                     31: fatal(message)
                     32: char *message;
                     33: {
                     34:        fprintf(stderr, "match: %s\n", message);
                     35:        exit(1);
                     36: }

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