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author | cgd <cgd@NetBSD.org> | 1993-03-21 09:45:37 +0000 |
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committer | cgd <cgd@NetBSD.org> | 1993-03-21 09:45:37 +0000 |
commit | 77e3814f0c0e3dea4d0032e25666f77e6f83bfff (patch) | |
tree | 7eddfcbf3dd12089e71dc3fafb0a106c5c5766c7 /larn/fortune.c | |
parent | e81d63576b2e46ab90da7d75fa155ea57ee4d32e (diff) | |
download | bsdgames-darwin-77e3814f0c0e3dea4d0032e25666f77e6f83bfff.tar.gz bsdgames-darwin-77e3814f0c0e3dea4d0032e25666f77e6f83bfff.tar.zst bsdgames-darwin-77e3814f0c0e3dea4d0032e25666f77e6f83bfff.zip |
initial import of 386bsd-0.1 sources
Diffstat (limited to 'larn/fortune.c')
-rw-r--r-- | larn/fortune.c | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/larn/fortune.c b/larn/fortune.c new file mode 100644 index 00000000..f410375d --- /dev/null +++ b/larn/fortune.c @@ -0,0 +1,63 @@ +/* fortune.c Larn is copyrighted 1986 by Noah Morgan. */ +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> + +#include "header.h" +/* + * function to return a random fortune from the fortune file + */ +static char *base=0; /* pointer to the fortune text */ +static char **flines=0; /* array of pointers to each fortune */ +static int fd=0; /* true if we have load the fortune info */ +static int nlines=0; /* # lines in fortune database */ + +char *fortune(file) + char *file; + { + register char *p; + register int lines,tmp; + struct stat stat; + char *malloc(); + if (fd==0) + { + if ((fd=open(file,O_RDONLY)) < 0) /* open the file */ + return(0); /* can't find file */ + + /* find out how big fortune file is and get memory for it */ + stat.st_size = 16384; + if ((fstat(fd,&stat) < 0) || ((base=malloc(1+stat.st_size)) == 0)) + { + close(fd); fd= -1; free((char*)base); return(0); /* can't stat file */ + } + + /* read in the entire fortune file */ + if (read(fd,base,stat.st_size) != stat.st_size) + { + close(fd); fd= -1; free((char*)base); return(0); /* can't read file */ + } + close(fd); base[stat.st_size]=0; /* final NULL termination */ + + /* count up all the lines (and NULL terminate) to know memory needs */ + for (p=base,lines=0; p<base+stat.st_size; p++) /* count lines */ + if (*p == '\n') *p=0,lines++; + nlines = lines; + + /* get memory for array of pointers to each fortune */ + if ((flines=(char**)malloc(nlines*sizeof(char*))) == 0) + { + free((char*)base); fd= -1; return(0); /* malloc() failure */ + } + + /* now assign each pointer to a line */ + for (p=base,tmp=0; tmp<nlines; tmp++) + { + flines[tmp]=p; while (*p++); /* advance to next line */ + } + } + + if (fd > 2) /* if we have a database to look at */ + return(flines[rund((nlines<=0)?1:nlines)]); + else + return(0); + } |