1 /*- 2 * Copyright (c) 1992, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * Copyright (c) 1992, 1993, 1994, 1995, 1996 5 * Keith Bostic. All rights reserved. 6 * 7 * See the LICENSE file for redistribution information. 8 */ 9 10 #include "config.h" 11 12 #ifndef lint 13 static const char sccsid[] = "$Id: ex_mkexrc.c,v 10.13 2001/06/25 15:19:17 skimo Exp $"; 14 #endif /* not lint */ 15 16 #include <sys/types.h> 17 #include <sys/queue.h> 18 #include <sys/stat.h> 19 20 #include <bitstring.h> 21 #include <errno.h> 22 #include <fcntl.h> 23 #include <limits.h> 24 #include <stdio.h> 25 #include <stdlib.h> 26 #include <string.h> 27 #include <unistd.h> 28 29 #include "../common/common.h" 30 #include "pathnames.h" 31 32 /* 33 * ex_mkexrc -- :mkexrc[!] [file] 34 * 35 * Create (or overwrite) a .exrc file with the current info. 36 * 37 * PUBLIC: int ex_mkexrc(SCR *, EXCMD *); 38 */ 39 int 40 ex_mkexrc(SCR *sp, EXCMD *cmdp) 41 { 42 struct stat sb; 43 FILE *fp; 44 int fd, sverrno; 45 char *fname; 46 size_t flen; 47 48 switch (cmdp->argc) { 49 case 0: 50 fname = _PATH_EXRC; 51 break; 52 case 1: 53 INT2CHAR(sp, cmdp->argv[0]->bp, cmdp->argv[0]->len + 1, 54 fname, flen); 55 set_alt_name(sp, fname); 56 break; 57 default: 58 abort(); 59 } 60 61 if (!FL_ISSET(cmdp->iflags, E_C_FORCE) && !stat(fname, &sb)) { 62 msgq_str(sp, M_ERR, fname, 63 "137|%s exists, not written; use ! to override"); 64 return (1); 65 } 66 67 /* Create with max permissions of rw-r--r--. */ 68 if ((fd = open(fname, O_CREAT | O_TRUNC | O_WRONLY, 69 S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)) < 0) { 70 msgq_str(sp, M_SYSERR, fname, "%s"); 71 return (1); 72 } 73 74 if ((fp = fdopen(fd, "w")) == NULL) { 75 sverrno = errno; 76 (void)close(fd); 77 goto e2; 78 } 79 80 if (seq_save(sp, fp, "abbreviate ", SEQ_ABBREV) || ferror(fp)) 81 goto e1; 82 if (seq_save(sp, fp, "map ", SEQ_COMMAND) || ferror(fp)) 83 goto e1; 84 if (seq_save(sp, fp, "map! ", SEQ_INPUT) || ferror(fp)) 85 goto e1; 86 if (opts_save(sp, fp) || ferror(fp)) 87 goto e1; 88 if (fclose(fp)) { 89 sverrno = errno; 90 goto e2; 91 } 92 93 msgq_str(sp, M_INFO, fname, "138|New exrc file: %s"); 94 return (0); 95 96 e1: sverrno = errno; 97 (void)fclose(fp); 98 e2: errno = sverrno; 99 msgq_str(sp, M_SYSERR, fname, "%s"); 100 return (1); 101 } 102