File: [local] / src / usr.bin / sendbug / sendbug.c (download)
Revision 1.53, Thu Jan 3 03:19:36 2008 UTC (16 years, 5 months ago) by ray
Branch: MAIN
Changes since 1.52: +31 -23 lines
In preparation of eliminating <> comment false positives:
- Move <> comments in template to an array, for easier reference later.
- Rename "comment" variable to avoid shadowing.
- Change some <> comments to SENDBUG comments.
OK chl@
|
/* $OpenBSD: sendbug.c,v 1.53 2008/01/03 03:19:36 ray Exp $ */
/*
* Written by Ray Lai <ray@cyth.net>.
* Public domain.
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <sys/sysctl.h>
#include <sys/wait.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <limits.h>
#include <paths.h>
#include <pwd.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "atomicio.h"
#define _PATH_DMESG "/var/run/dmesg.boot"
#define DMESG_START "OpenBSD "
int checkfile(const char *);
void dmesg(FILE *);
int editit(const char *);
void init(void);
int matchline(const char *, const char *, size_t);
int prompt(void);
int send_file(const char *, int);
int sendmail(const char *);
void template(FILE *);
const char *categories = "system user library documentation ports kernel "
"alpha amd64 arm i386 m68k m88k mips ppc sgi sparc sparc64 vax";
char *version = "4.2";
const char *comment[] = {
"<synopsis of the problem (one line)>",
"<[ non-critical | serious | critical ] (one line)>",
"<[ low | medium | high ] (one line)>",
"<PR category (one line)>",
"<[ sw-bug | doc-bug | change-request | support ] (one line)>",
"<release number or tag (one line)>",
"<machine, os, target, libraries (multiple lines)>",
"<precise description of the problem (multiple lines)>",
"<code/input/activities to reproduce the problem (multiple lines)>",
"<how to correct or work around the problem, if known (multiple lines)>"
};
struct passwd *pw;
char os[BUFSIZ], rel[BUFSIZ], mach[BUFSIZ], details[BUFSIZ];
char *fullname, *tmppath;
int Dflag, wantcleanup;
__dead void
usage(void)
{
extern char *__progname;
fprintf(stderr, "usage: %s [-DLPV]\n", __progname);
exit(1);
}
void
cleanup()
{
if (wantcleanup && tmppath && unlink(tmppath) == -1)
warn("unlink");
}
int
main(int argc, char *argv[])
{
int ch, c, fd, ret = 1;
const char *tmpdir;
struct stat sb;
char *pr_form;
time_t mtime;
FILE *fp;
while ((ch = getopt(argc, argv, "DLPV")) != -1)
switch (ch) {
case 'D':
Dflag = 1;
break;
case 'L':
printf("Known categories:\n");
printf("%s\n\n", categories);
exit(0);
case 'P':
init();
template(stdout);
exit(0);
case 'V':
printf("%s\n", version);
exit(0);
default:
usage();
}
argc -= optind;
argv += optind;
if (argc > 0)
usage();
if ((tmpdir = getenv("TMPDIR")) == NULL || tmpdir[0] == '\0')
tmpdir = _PATH_TMP;
if (asprintf(&tmppath, "%s%sp.XXXXXXXXXX", tmpdir,
tmpdir[strlen(tmpdir) - 1] == '/' ? "" : "/") == -1)
err(1, "asprintf");
if ((fd = mkstemp(tmppath)) == -1)
err(1, "mkstemp");
wantcleanup = 1;
atexit(cleanup);
if ((fp = fdopen(fd, "w+")) == NULL)
err(1, "fdopen");
init();
pr_form = getenv("PR_FORM");
if (pr_form) {
char buf[BUFSIZ];
size_t len;
FILE *frfp;
frfp = fopen(pr_form, "r");
if (frfp == NULL) {
warn("can't seem to read your template file "
"(`%s'), ignoring PR_FORM", pr_form);
template(fp);
} else {
while (!feof(frfp)) {
len = fread(buf, 1, sizeof buf, frfp);
if (len == 0)
break;
if (fwrite(buf, 1, len, fp) != len)
break;
}
fclose(frfp);
}
} else
template(fp);
if (fflush(fp) == EOF || fstat(fd, &sb) == -1 || fclose(fp) == EOF)
err(1, "error creating template");
mtime = sb.st_mtime;
edit:
if (editit(tmppath) == -1)
err(1, "error running editor");
if (stat(tmppath, &sb) == -1)
err(1, "stat");
if (mtime == sb.st_mtime)
errx(1, "report unchanged, nothing sent");
prompt:
if (!checkfile(tmppath))
fprintf(stderr, "fields are blank, must be filled in\n");
c = prompt();
switch (c) {
case 'a':
case EOF:
wantcleanup = 0;
errx(1, "unsent report in %s", tmppath);
case 'e':
goto edit;
case 's':
if (sendmail(tmppath) == -1)
goto quit;
break;
default:
goto prompt;
}
ret = 0;
quit:
return (ret);
}
void
dmesg(FILE *fp)
{
char buf[BUFSIZ];
FILE *dfp;
off_t offset = -1;
dfp = fopen(_PATH_DMESG, "r");
if (dfp == NULL) {
warn("can't read dmesg");
return;
}
fputs("\n"
"SENDBUG: dmesg is attached.\n"
"SENDBUG: Feel free to delete or use the -D flag if it contains "
"sensitive information.\n", fp);
/* Find last dmesg. */
for (;;) {
off_t o;
o = ftello(dfp);
if (fgets(buf, sizeof(buf), dfp) == NULL)
break;
if (!strncmp(DMESG_START, buf, sizeof(DMESG_START) - 1))
offset = o;
}
if (offset != -1) {
size_t len;
clearerr(dfp);
fseeko(dfp, offset, SEEK_SET);
while (offset != -1 && !feof(dfp)) {
len = fread(buf, 1, sizeof buf, dfp);
if (len == 0)
break;
if (fwrite(buf, 1, len, fp) != len)
break;
}
}
fclose(dfp);
}
/*
* Execute an editor on the specified pathname, which is interpreted
* from the shell. This means flags may be included.
*
* Returns -1 on error, or the exit value on success.
*/
int
editit(const char *pathname)
{
char *argp[] = {"sh", "-c", NULL, NULL}, *ed, *p;
sig_t sighup, sigint, sigquit, sigchld;
pid_t pid;
int saved_errno, st, ret = -1;
ed = getenv("VISUAL");
if (ed == NULL || ed[0] == '\0')
ed = getenv("EDITOR");
if (ed == NULL || ed[0] == '\0')
ed = _PATH_VI;
if (asprintf(&p, "%s %s", ed, pathname) == -1)
return (-1);
argp[2] = p;
sighup = signal(SIGHUP, SIG_IGN);
sigint = signal(SIGINT, SIG_IGN);
sigquit = signal(SIGQUIT, SIG_IGN);
sigchld = signal(SIGCHLD, SIG_DFL);
if ((pid = fork()) == -1)
goto fail;
if (pid == 0) {
execv(_PATH_BSHELL, argp);
_exit(127);
}
while (waitpid(pid, &st, 0) == -1)
if (errno != EINTR)
goto fail;
if (!WIFEXITED(st))
errno = EINTR;
else
ret = WEXITSTATUS(st);
fail:
saved_errno = errno;
(void)signal(SIGHUP, sighup);
(void)signal(SIGINT, sigint);
(void)signal(SIGQUIT, sigquit);
(void)signal(SIGCHLD, sigchld);
free(p);
errno = saved_errno;
return (ret);
}
int
prompt(void)
{
int c, ret;
fpurge(stdin);
fprintf(stderr, "a)bort, e)dit, or s)end: ");
fflush(stderr);
ret = getchar();
if (ret == EOF || ret == '\n')
return (ret);
do {
c = getchar();
} while (c != EOF && c != '\n');
return (ret);
}
int
sendmail(const char *pathname)
{
int filedes[2];
if (pipe(filedes) == -1) {
warn("pipe: unsent report in %s", pathname);
return (-1);
}
switch (fork()) {
case -1:
warn("fork error: unsent report in %s",
pathname);
return (-1);
case 0:
close(filedes[1]);
if (dup2(filedes[0], STDIN_FILENO) == -1) {
warn("dup2 error: unsent report in %s",
pathname);
return (-1);
}
close(filedes[0]);
execl("/usr/sbin/sendmail", "sendmail",
"-oi", "-t", (void *)NULL);
warn("sendmail error: unsent report in %s",
pathname);
return (-1);
default:
close(filedes[0]);
/* Pipe into sendmail. */
if (send_file(pathname, filedes[1]) == -1) {
warn("send_file error: unsent report in %s",
pathname);
return (-1);
}
close(filedes[1]);
wait(NULL);
break;
}
return (0);
}
void
init(void)
{
size_t amp, len, gecoslen, namelen;
int sysname[2];
char ch, *cp;
if ((pw = getpwuid(getuid())) == NULL)
err(1, "getpwuid");
namelen = strlen(pw->pw_name);
/* Count number of '&'. */
for (amp = 0, cp = pw->pw_gecos; *cp && *cp != ','; ++cp)
if (*cp == '&')
++amp;
/* Truncate gecos to full name. */
gecoslen = cp - pw->pw_gecos;
pw->pw_gecos[gecoslen] = '\0';
/* Expanded str = orig str - '&' chars + concatenated logins. */
len = gecoslen - amp + (amp * namelen) + 1;
if ((fullname = malloc(len)) == NULL)
err(1, "malloc");
/* Upper case first char of login. */
ch = pw->pw_name[0];
pw->pw_name[0] = toupper((unsigned char)pw->pw_name[0]);
cp = pw->pw_gecos;
fullname[0] = '\0';
while (cp != NULL) {
char *token;
token = strsep(&cp, "&");
if (token != pw->pw_gecos &&
strlcat(fullname, pw->pw_name, len) >= len)
errx(1, "truncated string");
if (strlcat(fullname, token, len) >= len)
errx(1, "truncated string");
}
/* Restore case of first char of login. */
pw->pw_name[0] = ch;
sysname[0] = CTL_KERN;
sysname[1] = KERN_OSTYPE;
len = sizeof(os) - 1;
if (sysctl(sysname, 2, &os, &len, NULL, 0) == -1)
err(1, "sysctl");
sysname[0] = CTL_KERN;
sysname[1] = KERN_OSRELEASE;
len = sizeof(rel) - 1;
if (sysctl(sysname, 2, &rel, &len, NULL, 0) == -1)
err(1, "sysctl");
sysname[0] = CTL_KERN;
sysname[1] = KERN_VERSION;
len = sizeof(details) - 1;
if (sysctl(sysname, 2, &details, &len, NULL, 0) == -1)
err(1, "sysctl");
cp = strchr(details, '\n');
if (cp) {
cp++;
if (*cp)
*cp++ = '\t';
if (*cp)
*cp++ = '\t';
if (*cp)
*cp++ = '\t';
}
sysname[0] = CTL_HW;
sysname[1] = HW_MACHINE;
len = sizeof(mach) - 1;
if (sysctl(sysname, 2, &mach, &len, NULL, 0) == -1)
err(1, "sysctl");
}
int
send_file(const char *file, int dst)
{
size_t len;
char *buf;
FILE *fp;
int blank = 0, dmesg_line = 0;
if ((fp = fopen(file, "r")) == NULL)
return (-1);
while ((buf = fgetln(fp, &len))) {
/* Skip lines starting with "SENDBUG". */
if (len >= sizeof("SENDBUG") - 1 &&
memcmp(buf, "SENDBUG", sizeof("SENDBUG") - 1) == 0)
continue;
/* Are we done with the headers? */
if (!blank && len == 1 && buf[0] == '\n')
blank = 1;
/* Have we reached the dmesg? */
if (blank && !dmesg_line &&
len >= sizeof(DMESG_START) - 1 &&
memcmp(buf, DMESG_START, sizeof(DMESG_START) - 1) == 0)
dmesg_line = 1;
/* Skip comments between headers and dmesg. */
while (len) {
char *sp = NULL, *ep = NULL;
size_t copylen;
if (blank && !dmesg_line &&
(sp = memchr(buf, '<', len)) != NULL)
ep = memchr(sp, '>', len - (sp - buf + 1));
/* Length of string before comment. */
if (ep)
copylen = sp - buf;
else
copylen = len;
if (atomicio(vwrite, dst, buf, copylen) != copylen) {
int saved_errno = errno;
fclose(fp);
errno = saved_errno;
return (-1);
}
if (!ep)
break;
/* Skip comment. */
len -= ep - buf + 1;
buf = ep + 1;
}
}
fclose(fp);
return (0);
}
/*
* Does line start with `s' and end with non-comment and non-whitespace?
* Note: Does not treat `line' as a C string.
*/
int
matchline(const char *s, const char *line, size_t linelen)
{
size_t slen;
int iscomment;
slen = strlen(s);
/* Is line shorter than string? */
if (linelen <= slen)
return (0);
/* Does line start with string? */
if (memcmp(line, s, slen) != 0)
return (0);
/* Does line contain anything but comments and whitespace? */
line += slen;
linelen -= slen;
iscomment = 0;
while (linelen) {
if (iscomment) {
if (*line == '>')
iscomment = 0;
} else if (*line == '<')
iscomment = 1;
else if (!isspace((unsigned char)*line))
return (1);
++line;
--linelen;
}
return (0);
}
/*
* Are all required fields filled out?
*/
int
checkfile(const char *pathname)
{
FILE *fp;
size_t len;
int category, class, priority, release, severity, synopsis;
char *buf;
if ((fp = fopen(pathname, "r")) == NULL) {
warn("%s", pathname);
return (0);
}
category = class = priority = release = severity = synopsis = 0;
while ((buf = fgetln(fp, &len))) {
if (matchline(">Category:", buf, len))
category = 1;
else if (matchline(">Class:", buf, len))
class = 1;
else if (matchline(">Priority:", buf, len))
priority = 1;
else if (matchline(">Release:", buf, len))
release = 1;
else if (matchline(">Severity:", buf, len))
severity = 1;
else if (matchline(">Synopsis:", buf, len))
synopsis = 1;
}
fclose(fp);
return (category && class && priority && release && severity &&
synopsis);
}
void
template(FILE *fp)
{
fprintf(fp, "SENDBUG: -*- sendbug -*-\n");
fprintf(fp, "SENDBUG: Lines starting with `SENDBUG' will"
" be removed automatically, as\n");
fprintf(fp, "SENDBUG: will all comments (text enclosed in `<' and `>').\n");
fprintf(fp, "SENDBUG:\n");
fprintf(fp, "SENDBUG: Choose from the following categories:\n");
fprintf(fp, "SENDBUG:\n");
fprintf(fp, "SENDBUG: %s\n", categories);
fprintf(fp, "SENDBUG:\n");
fprintf(fp, "SENDBUG:\n");
fprintf(fp, "To: %s\n", "gnats@openbsd.org");
fprintf(fp, "Subject: \n");
fprintf(fp, "From: %s\n", pw->pw_name);
fprintf(fp, "Cc: %s\n", pw->pw_name);
fprintf(fp, "Reply-To: %s\n", pw->pw_name);
fprintf(fp, "X-sendbug-version: %s\n", version);
fprintf(fp, "\n");
fprintf(fp, "\n");
fprintf(fp, ">Submitter-Id:\tnet\n");
fprintf(fp, ">Originator:\t%s\n", fullname);
fprintf(fp, ">Organization:\n");
fprintf(fp, "net\n");
fprintf(fp, ">Synopsis:\t%s\n", comment[0]);
fprintf(fp, ">Severity:\t%s\n", comment[1]);
fprintf(fp, ">Priority:\t%s\n", comment[2]);
fprintf(fp, ">Category:\t%s\n", comment[3]);
fprintf(fp, ">Class:\t\t%s\n", comment[4]);
fprintf(fp, ">Release:\t%s\n", comment[5]);
fprintf(fp, ">Environment:\n");
fprintf(fp, "\t%s\n", comment[6]);
fprintf(fp, "\tSystem : %s %s\n", os, rel);
fprintf(fp, "\tDetails : %s\n", details);
fprintf(fp, "\tArchitecture: %s.%s\n", os, mach);
fprintf(fp, "\tMachine : %s\n", mach);
fprintf(fp, ">Description:\n");
fprintf(fp, "\t%s\n", comment[7]);
fprintf(fp, ">How-To-Repeat:\n");
fprintf(fp, "\t%s\n", comment[8]);
fprintf(fp, ">Fix:\n");
fprintf(fp, "\t%s\n", comment[9]);
if (!Dflag)
dmesg(fp);
}