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/* $OpenBSD: logmsg.c,v 1.60 2017/05/28 16:57:01 joris Exp $ */ |
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/* |
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* Copyright (c) 2007 Joris Vink <joris@openbsd.org> |
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* |
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* Permission to use, copy, modify, and distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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#include <sys/stat.h> |
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#include <sys/types.h> |
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#include <sys/wait.h> |
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#include <errno.h> |
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#include <fcntl.h> |
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#include <libgen.h> |
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#include <paths.h> |
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#include <signal.h> |
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#include <stdint.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include "cvs.h" |
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#define CVS_LOGMSG_PREFIX "CVS:" |
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#define CVS_LOGMSG_LINE \ |
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"----------------------------------------------------------------------" |
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int cvs_logmsg_edit(const char *); |
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char * |
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cvs_logmsg_read(const char *path) |
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{ |
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int fd; |
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BUF *bp; |
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FILE *fp; |
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size_t len; |
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struct stat st; |
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char *buf, *lbuf; |
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if ((fd = open(path, O_RDONLY)) == -1) |
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fatal("cvs_logmsg_read: open %s", strerror(errno)); |
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if (fstat(fd, &st) == -1) |
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fatal("cvs_logmsg_read: fstat %s", strerror(errno)); |
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if (!S_ISREG(st.st_mode)) |
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fatal("cvs_logmsg_read: file is not a regular file"); |
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if ((fp = fdopen(fd, "r")) == NULL) |
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fatal("cvs_logmsg_read: fdopen %s", strerror(errno)); |
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if ((uintmax_t)st.st_size > SIZE_MAX) |
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fatal("cvs_logmsg_read: %s: file size too big", path); |
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lbuf = NULL; |
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bp = buf_alloc(st.st_size); |
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while ((buf = fgetln(fp, &len))) { |
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if (buf[len - 1] == '\n') { |
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buf[len - 1] = '\0'; |
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--len; |
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} else { |
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lbuf = xmalloc(len + 1); |
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memcpy(lbuf, buf, len); |
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lbuf[len] = '\0'; |
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buf = lbuf; |
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} |
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if (!strncmp(buf, CVS_LOGMSG_PREFIX, |
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sizeof(CVS_LOGMSG_PREFIX) - 1)) |
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continue; |
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buf_append(bp, buf, len); |
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buf_putc(bp, '\n'); |
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} |
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free(lbuf); |
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(void)fclose(fp); |
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buf_putc(bp, '\0'); |
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return (buf_release(bp)); |
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} |
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char * |
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cvs_logmsg_create(char *dir, struct cvs_flisthead *added, |
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struct cvs_flisthead *removed, struct cvs_flisthead *modified) |
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{ |
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FILE *fp, *rp; |
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int c, fd, rd, saved_errno; |
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struct cvs_filelist *cf; |
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struct stat st1, st2; |
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char *fpath, *logmsg, repo[PATH_MAX]; |
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struct stat st; |
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struct trigger_list *line_list; |
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struct trigger_line *line; |
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static int reuse = 0; |
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static char *prevmsg = NULL; |
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if (reuse) |
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return xstrdup(prevmsg); |
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(void)xasprintf(&fpath, "%s/cvsXXXXXXXXXX", cvs_tmpdir); |
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if ((fd = mkstemp(fpath)) == -1) |
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fatal("cvs_logmsg_create: mkstemp %s", strerror(errno)); |
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worklist_add(fpath, &temp_files); |
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if ((fp = fdopen(fd, "w")) == NULL) { |
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saved_errno = errno; |
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(void)unlink(fpath); |
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fatal("cvs_logmsg_create: fdopen %s", strerror(saved_errno)); |
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} |
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if (prevmsg != NULL && prevmsg[0] != '\0') |
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fprintf(fp, "%s", prevmsg); |
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else |
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fputc('\n', fp); |
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line_list = cvs_trigger_getlines(CVS_PATH_RCSINFO, repo); |
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if (line_list != NULL) { |
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TAILQ_FOREACH(line, line_list, flist) { |
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if ((rd = open(line->line, O_RDONLY)) == -1) |
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fatal("cvs_logmsg_create: open %s", |
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strerror(errno)); |
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if (fstat(rd, &st) == -1) |
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fatal("cvs_logmsg_create: fstat %s", |
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strerror(errno)); |
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if (!S_ISREG(st.st_mode)) |
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fatal("cvs_logmsg_create: file is not a " |
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"regular file"); |
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if ((rp = fdopen(rd, "r")) == NULL) |
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fatal("cvs_logmsg_create: fdopen %s", |
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strerror(errno)); |
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if ((uintmax_t)st.st_size > SIZE_MAX) |
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fatal("cvs_logmsg_create: %s: file size " |
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"too big", line->line); |
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logmsg = xmalloc(st.st_size); |
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fread(logmsg, st.st_size, 1, rp); |
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fwrite(logmsg, st.st_size, 1, fp); |
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free(logmsg); |
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(void)fclose(rp); |
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} |
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cvs_trigger_freelist(line_list); |
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} |
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fprintf(fp, "%s %s\n%s Enter Log. Lines beginning with `%s' are " |
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"removed automatically\n%s \n", CVS_LOGMSG_PREFIX, CVS_LOGMSG_LINE, |
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CVS_LOGMSG_PREFIX, CVS_LOGMSG_PREFIX, CVS_LOGMSG_PREFIX); |
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if (cvs_cmdop == CVS_OP_COMMIT) { |
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fprintf(fp, "%s Committing in %s\n%s\n", CVS_LOGMSG_PREFIX, |
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dir != NULL ? dir : ".", CVS_LOGMSG_PREFIX); |
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} |
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if (added != NULL && !RB_EMPTY(added)) { |
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fprintf(fp, "%s Added Files:", CVS_LOGMSG_PREFIX); |
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RB_FOREACH(cf, cvs_flisthead, added) |
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fprintf(fp, "\n%s \t%s ", CVS_LOGMSG_PREFIX, |
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dir != NULL ? basename(cf->file_path) : |
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cf->file_path); |
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fputs("\n", fp); |
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} |
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if (removed != NULL && !RB_EMPTY(removed)) { |
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fprintf(fp, "%s Removed Files:", CVS_LOGMSG_PREFIX); |
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RB_FOREACH(cf, cvs_flisthead, removed) |
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fprintf(fp, "\n%s \t%s ", CVS_LOGMSG_PREFIX, |
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dir != NULL ? basename(cf->file_path) : |
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cf->file_path); |
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fputs("\n", fp); |
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} |
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if (modified != NULL && !RB_EMPTY(modified)) { |
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fprintf(fp, "%s Modified Files:", CVS_LOGMSG_PREFIX); |
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RB_FOREACH(cf, cvs_flisthead, modified) |
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fprintf(fp, "\n%s \t%s ", CVS_LOGMSG_PREFIX, |
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dir != NULL ? basename(cf->file_path) : |
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cf->file_path); |
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fputs("\n", fp); |
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} |
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fprintf(fp, "%s %s\n", CVS_LOGMSG_PREFIX, CVS_LOGMSG_LINE); |
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(void)fflush(fp); |
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196 |
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if (fstat(fd, &st1) == -1) { |
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saved_errno = errno; |
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(void)unlink(fpath); |
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fatal("cvs_logmsg_create: fstat %s", strerror(saved_errno)); |
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} |
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logmsg = NULL; |
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204 |
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for (;;) { |
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if (cvs_logmsg_edit(fpath) == -1) |
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break; |
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if (fstat(fd, &st2) == -1) { |
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saved_errno = errno; |
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(void)unlink(fpath); |
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fatal("cvs_logmsg_create: fstat %s", |
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strerror(saved_errno)); |
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} |
214 |
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if (st1.st_mtime != st2.st_mtime) { |
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logmsg = cvs_logmsg_read(fpath); |
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free(prevmsg); |
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prevmsg = xstrdup(logmsg); |
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break; |
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} |
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222 |
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printf("\nLog message unchanged or not specified\n" |
223 |
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"a)bort, c)ontinue, e)dit, !)reuse this message " |
224 |
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"unchanged for remaining dirs\nAction: (abort) "); |
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(void)fflush(stdout); |
226 |
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227 |
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c = getc(stdin); |
228 |
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if (c == EOF || c == '\n' || c == 'a' || c == 'A') { |
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fatal("Aborted by user"); |
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} else if (c == 'c' || c == 'C') { |
231 |
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if (prevmsg == NULL) |
232 |
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prevmsg = xstrdup(""); |
233 |
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logmsg = xstrdup(prevmsg); |
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break; |
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} else if (c == 'e' || c == 'E') { |
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continue; |
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} else if (c == '!') { |
238 |
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reuse = 1; |
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if (prevmsg == NULL) |
240 |
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prevmsg = xstrdup(""); |
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logmsg = xstrdup(prevmsg); |
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break; |
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} else { |
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cvs_log(LP_ERR, "invalid input"); |
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continue; |
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} |
247 |
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} |
248 |
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249 |
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(void)fclose(fp); |
250 |
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(void)unlink(fpath); |
251 |
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free(fpath); |
252 |
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253 |
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return (logmsg); |
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} |
255 |
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256 |
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/* |
257 |
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* Execute an editor on the specified pathname, which is interpreted |
258 |
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* from the shell. This means flags may be included. |
259 |
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* |
260 |
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* Returns -1 on error, or the exit value on success. |
261 |
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*/ |
262 |
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int |
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cvs_logmsg_edit(const char *pathname) |
264 |
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{ |
265 |
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char *argp[] = {"sh", "-c", NULL, NULL}, *p; |
266 |
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sig_t sighup, sigint, sigquit; |
267 |
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pid_t pid; |
268 |
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int saved_errno, st; |
269 |
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270 |
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(void)xasprintf(&p, "%s %s", cvs_editor, pathname); |
271 |
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argp[2] = p; |
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273 |
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sighup = signal(SIGHUP, SIG_IGN); |
274 |
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sigint = signal(SIGINT, SIG_IGN); |
275 |
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sigquit = signal(SIGQUIT, SIG_IGN); |
276 |
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if ((pid = fork()) == -1) |
277 |
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goto fail; |
278 |
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if (pid == 0) { |
279 |
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execv(_PATH_BSHELL, argp); |
280 |
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_exit(127); |
281 |
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} |
282 |
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while (waitpid(pid, &st, 0) == -1) |
283 |
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if (errno != EINTR) |
284 |
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goto fail; |
285 |
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free(p); |
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(void)signal(SIGHUP, sighup); |
287 |
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(void)signal(SIGINT, sigint); |
288 |
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(void)signal(SIGQUIT, sigquit); |
289 |
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if (!WIFEXITED(st)) { |
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errno = EINTR; |
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return (-1); |
292 |
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} |
293 |
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return (WEXITSTATUS(st)); |
294 |
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295 |
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fail: |
296 |
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saved_errno = errno; |
297 |
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(void)signal(SIGHUP, sighup); |
298 |
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(void)signal(SIGINT, sigint); |
299 |
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(void)signal(SIGQUIT, sigquit); |
300 |
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free(p); |
301 |
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errno = saved_errno; |
302 |
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return (-1); |
303 |
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} |
304 |
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305 |
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int |
306 |
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cvs_logmsg_verify(char *logmsg) |
307 |
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{ |
308 |
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int fd, ret = 0; |
309 |
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char *fpath; |
310 |
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struct trigger_list *line_list; |
311 |
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struct file_info_list files_info; |
312 |
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struct file_info *fi; |
313 |
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314 |
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line_list = cvs_trigger_getlines(CVS_PATH_VERIFYMSG, "DEFAULT"); |
315 |
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if (line_list != NULL) { |
316 |
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TAILQ_INIT(&files_info); |
317 |
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318 |
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(void)xasprintf(&fpath, "%s/cvsXXXXXXXXXX", cvs_tmpdir); |
319 |
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if ((fd = mkstemp(fpath)) == -1) |
320 |
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fatal("cvs_logmsg_verify: mkstemp %s", strerror(errno)); |
321 |
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322 |
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fi = xcalloc(1, sizeof(*fi)); |
323 |
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fi->file_path = xstrdup(fpath); |
324 |
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TAILQ_INSERT_TAIL(&files_info, fi, flist); |
325 |
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326 |
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if (cvs_trigger_handle(CVS_TRIGGER_VERIFYMSG, NULL, NULL, |
327 |
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line_list, &files_info)) { |
328 |
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cvs_log(LP_ERR, "Log message check failed"); |
329 |
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ret = 1; |
330 |
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} |
331 |
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332 |
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cvs_trigger_freeinfo(&files_info); |
333 |
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(void)close(fd); |
334 |
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(void)unlink(fpath); |
335 |
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free(fpath); |
336 |
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cvs_trigger_freelist(line_list); |
337 |
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} |
338 |
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339 |
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return ret; |
340 |
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} |
341 |
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