makedatprog.c
上传用户:s81996212
上传日期:2007-01-04
资源大小:722k
文件大小:2k
- /*
- ** Copyright 1998 - 1999 Double Precision, Inc.
- ** See COPYING for distribution information.
- */
- #if HAVE_CONFIG_H
- #include "config.h"
- #endif
- #if HAVE_UNISTD_H
- #include <unistd.h>
- #endif
- #include <stdlib.h>
- #include <string.h>
- #include <stdio.h>
- #include "dbobj.h"
- static const char rcsid[]="$Id: makedatprog.c,v 1.4 1999/12/06 13:22:17 mrsam Exp $";
- static int addgdbm(char *p, struct dbobj *o)
- {
- char *key, *val;
- if (!*p || *p == '#')
- return (0);
- key=p;
- if ( (val=strchr(p, 't')) == 0) val="";
- else *val++=0;
- if (*key)
- {
- if (!*val) val="1";
- if (dbobj_store(o, key, strlen(key), val, strlen(val), "I"))
- {
- fprintf(stderr, "Cannot store record for %s - duplicate or out of disk space.n", key);
- return (-1);
- }
- }
- return (0);
- }
- static int buildgdbm(FILE *i, struct dbobj *o)
- {
- char *buf=0;
- size_t bufsize, buflen;
- bufsize=0;
- buflen=0;
- for (;;)
- {
- int c;
- buflen=0;
- for (;;)
- {
- if (buflen >= bufsize)
- {
- bufsize += 256;
- buf= buf ? realloc(buf, bufsize):
- malloc(bufsize);
- if (!buf)
- {
- perror("malloc");
- return (-1);
- }
- }
- c=getc(i);
- if (c == 'n' || c == EOF) break;
- buf[buflen++]=c;
- }
- buf[buflen]=0;
- if (c == EOF) return (-1);
- if (strcmp(buf, ".") == 0) return (0);
- if (addgdbm(buf, o)) return (-1);
- }
- }
- int main(int argc, char **argv)
- {
- FILE *i;
- struct dbobj obj;
- if (argc < 4)
- {
- fprintf(stderr, "Usage: %s textfile tmpfile gdbmfilen",
- argv[0]);
- exit(1);
- }
- if (strcmp(argv[1], "-") == 0)
- i= stdin;
- else
- {
- if ((i=fopen(argv[1], "r")) == 0)
- {
- perror(argv[1]);
- exit(1);
- }
- }
- dbobj_init(&obj);
- if (dbobj_open(&obj, argv[2], "N"))
- {
- fprintf(stderr, "Cannot create %sn", argv[2]);
- exit (1);
- }
- if (buildgdbm(i, &obj))
- {
- dbobj_close(&obj);
- unlink(argv[2]);
- exit (1);
- }
- dbobj_close(&obj);
- if (rename(argv[2], argv[3]))
- {
- perror("rename");
- unlink(argv[2]);
- exit(1);
- }
- exit(0);
- return (0);
- }