1 /* $OpenBSD: commit.c,v 1.1.1.1 2004/07/13 22:02:40 jfb Exp $ */ 2 /* 3 * Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 16 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 17 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 18 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 21 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 22 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 23 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 24 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/types.h> 28 #include <sys/stat.h> 29 30 #include <errno.h> 31 #include <stdio.h> 32 #include <fcntl.h> 33 #include <stdlib.h> 34 #include <unistd.h> 35 #include <string.h> 36 #include <sysexits.h> 37 38 #include "cvs.h" 39 #include "log.h" 40 41 42 43 44 static char* cvs_commit_openmsg (const char *); 45 46 47 48 49 /* 50 * cvs_commit() 51 * 52 * Handler for the `cvs commit' command. 53 */ 54 55 int 56 cvs_commit(int argc, char **argv) 57 { 58 int ch, recurse; 59 char *msg, *mfile; 60 61 recurse = 1; 62 mfile = NULL; 63 msg = NULL; 64 65 while ((ch = getopt(argc, argv, "F:flm:R")) != -1) { 66 switch (ch) { 67 case 'F': 68 mfile = optarg; 69 break; 70 case 'f': 71 recurse = 0; 72 break; 73 case 'l': 74 recurse = 0; 75 break; 76 case 'm': 77 msg = optarg; 78 break; 79 case 'R': 80 recurse = 1; 81 break; 82 default: 83 return (EX_USAGE); 84 } 85 } 86 87 if ((msg != NULL) && (mfile != NULL)) { 88 cvs_log(LP_ERR, "the -F and -m flags are mutually exclusive"); 89 return (EX_USAGE); 90 } 91 92 if ((mfile != NULL) && (msg = cvs_commit_openmsg(mfile)) == NULL) 93 return (EX_DATAERR); 94 95 argc -= optind; 96 argv += optind; 97 98 return (0); 99 } 100 101 102 /* 103 * cvs_commit_openmsg() 104 * 105 * Open the file specified by <path> and allocate a buffer large enough to 106 * hold all of the file's contents. The returned value must later be freed 107 * using the free() function. 108 * Returns a pointer to the allocated buffer on success, or NULL on failure. 109 */ 110 111 static char* 112 cvs_commit_openmsg(const char *path) 113 { 114 int fd; 115 size_t sz; 116 char *msg; 117 struct stat st; 118 119 if (stat(path, &st) == -1) { 120 cvs_log(LP_ERRNO, "failed to stat `%s'", path); 121 return (NULL); 122 } 123 124 sz = st.st_size + 1; 125 126 msg = (char *)malloc(sz); 127 if (msg == NULL) { 128 cvs_log(LP_ERRNO, "failed to allocate message buffer"); 129 return (NULL); 130 } 131 132 fd = open(path, O_RDONLY, 0); 133 if (fd == -1) { 134 cvs_log(LP_ERRNO, "failed to open message file `%s'", path); 135 return (NULL); 136 } 137 138 if (read(fd, msg, sz - 1) == -1) { 139 cvs_log(LP_ERRNO, "failed to read CVS commit message"); 140 return (NULL); 141 } 142 msg[sz - 1] = '\0'; 143 144 return (msg); 145 } 146