1e0b8e63eSJohn Marino /*- 2e0b8e63eSJohn Marino * Copyright (c) 1992, 1993, 1994 3e0b8e63eSJohn Marino * The Regents of the University of California. All rights reserved. 4e0b8e63eSJohn Marino * Copyright (c) 1992, 1993, 1994, 1995, 1996 5e0b8e63eSJohn Marino * Keith Bostic. All rights reserved. 6e0b8e63eSJohn Marino * 7e0b8e63eSJohn Marino * See the LICENSE file for redistribution information. 8e0b8e63eSJohn Marino */ 9e0b8e63eSJohn Marino 10e0b8e63eSJohn Marino #include "config.h" 11e0b8e63eSJohn Marino 12e0b8e63eSJohn Marino #include <sys/types.h> 13e0b8e63eSJohn Marino #include <sys/queue.h> 14e0b8e63eSJohn Marino #include <sys/stat.h> 15e0b8e63eSJohn Marino 16e0b8e63eSJohn Marino #include <bitstring.h> 17e0b8e63eSJohn Marino #include <errno.h> 18e0b8e63eSJohn Marino #include <fcntl.h> 19e0b8e63eSJohn Marino #include <limits.h> 20e0b8e63eSJohn Marino #include <stdio.h> 21e0b8e63eSJohn Marino #include <stdlib.h> 22e0b8e63eSJohn Marino #include <string.h> 23e0b8e63eSJohn Marino #include <unistd.h> 24e0b8e63eSJohn Marino 25e0b8e63eSJohn Marino #include "../common/common.h" 26e0b8e63eSJohn Marino 27e0b8e63eSJohn Marino /* 28e0b8e63eSJohn Marino * ex_source -- :source file 29e0b8e63eSJohn Marino * Execute ex commands from a file. 30e0b8e63eSJohn Marino * 31e0b8e63eSJohn Marino * PUBLIC: int ex_source(SCR *, EXCMD *); 32e0b8e63eSJohn Marino */ 33e0b8e63eSJohn Marino int 34e0b8e63eSJohn Marino ex_source(SCR *sp, EXCMD *cmdp) 35e0b8e63eSJohn Marino { 36e0b8e63eSJohn Marino struct stat sb; 37e0b8e63eSJohn Marino int fd, len; 38e0b8e63eSJohn Marino char *bp; 39e0b8e63eSJohn Marino char *name, *np; 40e0b8e63eSJohn Marino size_t nlen; 41e0b8e63eSJohn Marino CHAR_T *wp; 42e0b8e63eSJohn Marino size_t wlen; 43e0b8e63eSJohn Marino int rc; 44e0b8e63eSJohn Marino 45e0b8e63eSJohn Marino INT2CHAR(sp, cmdp->argv[0]->bp, cmdp->argv[0]->len + 1, name, nlen); 46e0b8e63eSJohn Marino if ((fd = open(name, O_RDONLY, 0)) < 0 || fstat(fd, &sb)) 47e0b8e63eSJohn Marino goto err; 48e0b8e63eSJohn Marino 49e0b8e63eSJohn Marino /* 50e0b8e63eSJohn Marino * XXX 51e0b8e63eSJohn Marino * I'd like to test to see if the file is too large to malloc. Since 52e0b8e63eSJohn Marino * we don't know what size or type off_t's or size_t's are, what the 53e0b8e63eSJohn Marino * largest unsigned integral type is, or what random insanity the local 54e0b8e63eSJohn Marino * C compiler will perpetrate, doing the comparison in a portable way 55e0b8e63eSJohn Marino * is flatly impossible. So, put an fairly unreasonable limit on it, 56e0b8e63eSJohn Marino * I don't want to be dropping core here. 57e0b8e63eSJohn Marino */ 58e0b8e63eSJohn Marino #define MEGABYTE 1048576 59e0b8e63eSJohn Marino if (sb.st_size > MEGABYTE) { 60e0b8e63eSJohn Marino errno = ENOMEM; 61e0b8e63eSJohn Marino goto err; 62e0b8e63eSJohn Marino } 63e0b8e63eSJohn Marino 64*b1ac2ebbSDaniel Fojt MALLOC(sp, bp, (size_t)sb.st_size + 1); 65e0b8e63eSJohn Marino if (bp == NULL) { 66e0b8e63eSJohn Marino (void)close(fd); 67e0b8e63eSJohn Marino return (1); 68e0b8e63eSJohn Marino } 69e0b8e63eSJohn Marino bp[sb.st_size] = '\0'; 70e0b8e63eSJohn Marino 71e0b8e63eSJohn Marino /* Read the file into memory. */ 72e0b8e63eSJohn Marino len = read(fd, bp, (int)sb.st_size); 73e0b8e63eSJohn Marino (void)close(fd); 74e0b8e63eSJohn Marino if (len == -1 || len != sb.st_size) { 75e0b8e63eSJohn Marino if (len != sb.st_size) 76e0b8e63eSJohn Marino errno = EIO; 77e0b8e63eSJohn Marino free(bp); 78e0b8e63eSJohn Marino err: msgq_str(sp, M_SYSERR, name, "%s"); 79e0b8e63eSJohn Marino return (1); 80e0b8e63eSJohn Marino } 81e0b8e63eSJohn Marino 82e0b8e63eSJohn Marino np = strdup(name); 83e0b8e63eSJohn Marino if (CHAR2INT(sp, bp, (size_t)sb.st_size + 1, wp, wlen)) 84e0b8e63eSJohn Marino msgq(sp, M_ERR, "323|Invalid input. Truncated."); 85e0b8e63eSJohn Marino /* Put it on the ex queue. */ 86e0b8e63eSJohn Marino rc = ex_run_str(sp, np, wp, wlen - 1, 1, 0); 87e0b8e63eSJohn Marino free(np); 88e0b8e63eSJohn Marino free(bp); 89e0b8e63eSJohn Marino return (rc); 90e0b8e63eSJohn Marino } 91