/* ** SPLIT.C - A utility to split large text files into smaller files ** ** public domain by Bob Stout ** ** uses PSPLIT.C from SNIPPETS */ #include #include #include #ifdef __TURBOC__ #define FAR far #else #define FAR _far #endif void psplit(char *, char *, char *, char *, char *); int main(int argc, char *argv[]) { long newsize = 32L * 1024L; size_t seq = 0; char fname[FILENAME_MAX]; FILE *from; if (2 > argc) { puts("SPLIT big_file [size_in_K]\n"); puts("creates files of the same name, " "but with numeric extensions"); puts("a maximum file size may be specified for new files"); return EXIT_SUCCESS; } if (2 < argc) { newsize = atol(argv[2]); newsize <<= 10; } if (NULL == (from = fopen(argv[1], "r"))) { printf("\aSPLIT: error - can't open %s\n", argv[1]); return EXIT_FAILURE; } psplit(argv[1], NULL, NULL, fname, NULL); while (!feof(from)) { char newname[FILENAME_MAX], buf[1024]; FILE *to; long bytes; sprintf(newname, "%s.%03d", fname, seq++); if (NULL == (to = fopen(newname, "w"))) { printf("\aSPLIT: error - can't write %s\n", newname); return EXIT_FAILURE; } for (bytes = 0L; !feof(from) && (bytes < newsize); ) { if (fgets(buf, 1023, from)) { fputs(buf, to); bytes += (long)strlen(buf); } } fclose(to); printf("%s written\n", newname); } return EXIT_SUCCESS; } sung/Makefile'>
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