int main(int argc, char **real_argv, char **envv)
{
CAP *cap;
unsigned char **argv = (unsigned char **)real_argv;
struct stat sbuf;
unsigned char *s;
unsigned char *t;
long time_rc;
unsigned char *run;
#ifdef __MSDOS__
unsigned char *rundir;
#endif
SCRN *n;
int opened = 0;
int omid;
int backopt;
int c;
init_bufs();
for (c = 1; argv[c] != NULL; ++c) {
if (0 == zcmp((unsigned char*)argv[c], USTR "-nosys")) {
read_sys_configs = 0;
} else if (0 == zcmp((unsigned char*)argv[c], USTR "-nouser")) {
read_user_configs = 0;
} else {
argv[--c] = argv[0];
argv += c;
argc -= c;
break;
}
}
if (read_user_configs) {
s = (unsigned char *)getenv("HOME");
if (s) {
s = vsncpy(NULL, 0, sz(s));
s = vsncpy(sv(s), sc("/.joe-p37/only.rc"));
if (!stat((char*)s, &sbuf)) read_sys_configs = 0;
vsrm(s);
}
}
joe_locale();
mainenv = (unsigned char **)envv;
#ifdef __MSDOS__
_fmode = O_BINARY;
zcpy(stdbuf, argv[0]);
joesep(stdbuf);
run = namprt(stdbuf);
rundir = dirprt(stdbuf);
for (c = 0; run[c]; ++c)
if (run[c] == '.') {
run = vstrunc(run, c);
break;
}
#else
run = namprt(argv[0]);
#endif
env_lines = 0;
if ((s = (unsigned char *)getenv("LINES")) != NULL &&
sscanf((char *)s, "%d", &env_lines) != 1)
env_lines = 0;
env_columns = 0;
if ((s = (unsigned char *)getenv("COLUMNS")) != NULL &&
sscanf((char *)s, "%d", &env_columns) != 1)
env_columns = 0;
if ((s = (unsigned char *)getenv("BAUD")) != NULL)
sscanf((char *)s, "%u", (unsigned *)&Baud);
if (getenv("DOPADDING"))
dopadding = 1;
if (getenv("NOXON"))
noxon = 1;
if ((s = (unsigned char *)getenv("JOETERM")) != NULL)
joeterm = s;
#ifndef __MSDOS__
if (!(cap = my_getcap(NULL, 9600, NULL, NULL))) {
fprintf(stderr, (char *)joe_gettext(_("Couldn't load termcap/terminfo entry\n")));
return 1;
}
#endif
#ifdef __MSDOS__
s = vsncpy(NULL, 0, sv(run));
s = vsncpy(sv(s), sc("rc"));
c = procrc(cap, s);
if (c == 0)
goto donerc;
if (c == 1) {
unsigned char buf[8];
fprintf(stderr, (char *)joe_gettext(_("There were errors in '%s'. Use it anyway?")), s);
fflush(stderr);
if (NULL == fgets(buf, 8, stdin) || yn_checks(yes_key, buf))
goto donerc;
}
vsrm(s);
s = vsncpy(NULL, 0, sv(rundir));
s = vsncpy(sv(s), sv(run));
s = vsncpy(sv(s), sc("rc"));
c = procrc(cap, s);
if (c != 0 && c != 1) {
/* If built-in *fancyjoerc not present, process builtin *joerc,
* which is always present.
*/
s = vstrunc(s, 0);
s = vsncpy(sv(s), sc("*joerc"));
c = procrc(cap, s);
}
if (c == 0)
goto donerc;
if (c == 1) {
unsigned char buf[8];
fprintf(stderr, (char *)joe_gettext(_("There were errors in '%s'. Use it anyway?")), s);
fflush(stderr);
if (NULL == fgets(buf, 8, stdin) || yn_checks(yes_key, buf))
goto donerc;
}
#else
/* Name of system joerc file. Try to find one with matching language... */
/* Try full language: like joerc.de_DE */
time_rc = 0;
if (!read_sys_configs) { t = NULL; goto skip_joerc; }
t = vsncpy(NULL, 0, sc(JOERC));
t = vsncpy(sv(t), sv(run));
t = vsncpy(sv(t), sc("rc."));
t = vsncpy(sv(t), sz(locale_msgs));
if (!stat((char *)t,&sbuf))
time_rc = sbuf.st_mtime;
else {
/* Try generic language: like joerc.de */
if (locale_msgs[0] && locale_msgs[1] && locale_msgs[2]=='_') {
vsrm(t);
t = vsncpy(NULL, 0, sc(JOERC));
t = vsncpy(sv(t), sv(run));
t = vsncpy(sv(t), sc("rc."));
t = vsncpy(sv(t), locale_msgs, 2);
if (!stat((char *)t,&sbuf))
time_rc = sbuf.st_mtime;
else
goto nope;
} else {
nope:
vsrm(t);
/* Try Joe's bad english */
t = vsncpy(NULL, 0, sc(JOERC));
t = vsncpy(sv(t), sv(run));
t = vsncpy(sv(t), sc("rc"));
if (!stat((char *)t,&sbuf))
time_rc = sbuf.st_mtime;
else {
/* If built-in *fancyjoerc not present, process builtin *joerc,
* which is always present.
*/
t = vstrunc(s, 0);
t = vsncpy(sv(s), sc("*joerc"));
time_rc = stat((char *)t,&sbuf) ? 0 : sbuf.st_mtime;
}
}
}
skip_joerc:
/* User's joerc file */
s = (unsigned char *)getenv("HOME");
if (s && !read_sys_configs) {
if (read_user_configs) { /* TODO(pts): Don't read /dev/null */
s = vsncpy(NULL, 0, sz(s));
s = vsncpy(sv(s), sc("/.joe-p37/rc"));
} else {
s = vsncpy(NULL, 0, sc("/dev/null/missing"));
}
goto process_user_rc;
} else if (!read_user_configs) {
s = vsncpy(NULL, 0, sc("/dev/null/missing"));
goto process_user_rc;
} else if (s) {
unsigned char buf[8];
s = vsncpy(NULL, 0, sz(s));
s = vsncpy(sv(s), sc("/."));
s = vsncpy(sv(s), sv(run));
s = vsncpy(sv(s), sc("rc"));
if (!stat((char *)s,&sbuf)) {
if (sbuf.st_mtime < time_rc) {
fprintf(stderr,(char *)joe_gettext(_("Warning: %s is newer than your %s.\n")),t,s);
fprintf(stderr,(char *)joe_gettext(_("You should update or delete %s\n")),s);
fprintf(stderr,(char *)joe_gettext(_("Hit enter to continue with %s ")),t);
fflush(stderr);
(void)!fgets((char *)buf, 8, stdin);
goto use_sys;
}
}
process_user_rc:
c = procrc(cap, s);
if (c == 0) {
vsrm(t);
goto donerc;
}
if (c == 1) {
fprintf(stderr,(char *)joe_gettext(_("There were errors in '%s'. Use it anyway (y,n)? ")), s);
fflush(stderr);
if (NULL == fgets((char *)buf, 8, stdin) || ynchecks(yes_key, buf)) {
vsrm(t);
goto donerc;
}
}
}
use_sys:
vsrm(s);
s = t;
c = s ? procrc(cap, s) : -1;
if (c == 0)
goto donerc;
if (c == 1) {
unsigned char buf[8];
fprintf(stderr,(char *)joe_gettext(_("There were errors in '%s'. Use it anyway (y,n)? ")), s);
fflush(stderr);
if (NULL == fgets((char *)buf, 8, stdin) || ynchecks(yes_key, buf))
goto donerc;
}
/* Try built-in *fancyjoerc, e.g. "*joe-p37rc" */
vsrm(s);
s = vsncpy(NULL, 0, sc("*"));
s = vsncpy(sv(s), sv(run));
s = vsncpy(sv(s), sc("rc"));
c = procrc(cap, s);
if (c != 0 && c != 1) {
/* If built-in *fancyjoerc not present, process builtin "*joerc",
* which is always present.
*/
s = vstrunc(s, 0);
s = vsncpy(sv(s), sc("*joerc"));
c = procrc(cap, s);
}
if (c == 0)
goto donerc;
if (c == 1) {
unsigned char buf[8];
fprintf(stderr,(char *)joe_gettext(_("There were errors in '%s'. Use it anyway (y,n)? ")), s);
fflush(stderr);
if (NULL == fgets((char *)buf, 8, stdin) || ynchecks(yes_key, buf))
goto donerc;
}
#endif
fprintf(stderr,(char *)joe_gettext(_("Couldn't open '%s'\n")), s);
vsrm(s);
return 1;
donerc:
vsrm(s);
if (validate_rc()) {
fprintf(stderr,(char *)joe_gettext(_("rc file has no :main key binding section or no bindings. Bye.\n")));
return 1;
}
if (!isatty(fileno(stdin)))
idleout = 0;
for (c = 1; argv[c]; ++c) {
if (argv[c][0] == '-') {
if (argv[c][1])
switch (glopt(argv[c] + 1, argv[c + 1], NULL, 1)) {
case 0:
fprintf(stderr,(char *)joe_gettext(_("Unknown option '%s'\n")), argv[c]);
break;
case 1:
break;
case 2:
++c;
break;
} else
idleout = 0;
}
}
if (!dspasis) { /* Open all files as ASCII by default if `joe --asis' is specified. This is to avoid writing control characters to the UTF-8 terminal. */
fdefault.charmap = pdefault.charmap = find_charmap(USTR "ascii");
fdefault.map_name = pdefault.map_name = USTR "ascii";
}
/* initialize mouse support */
if (xmouse && (s=(unsigned char *)getenv("TERM")) && strstr((char *)s,"xterm"))
usexmouse=1;
if (!(n = nopen(cap)))
return 1;
maint = screate(n);
vmem = vtmp();
startup_log = bfind_scratch_incref(USTR "* Startup Log *");
startup_log->internal = 1;
load_state();
/* It would be better if this ran uedit() to load files */
/* The business with backopt is to load the file first, then apply file
* local options afterwords */
/* orphan is not compatible with exemac()- macros need a window to exist */
for (c = 1, backopt = 0; argv[c]; ++c)
if (argv[c][0] == '+' && argv[c][1]>='0' && argv[c][1]<='9') {
if (!backopt)
backopt = c;
} else if (argv[c][0] == '-' && argv[c][1]) {
if (!backopt)
backopt = c;
if (glopt(argv[c] + 1, argv[c + 1], NULL, 0) == 2)
++c;
} else {
B *b = bfind_incref(argv[c]);
BW *bw = NULL;
int er = berror;
/* This is too annoying */
/* set_current_dir(argv[c],1); */
setup_history(&filehist);
append_history(filehist,sz(argv[c]));
/* wmktw_takeref() inserts the window before maint->curwin */
if (!orphan || !opened) {
bw = wmktw_takeref(maint, b);
if (er)
msgnwt(bw->parent, joe_gettext(msgs[-er]));
} else {
long line;
b->orphan = 1;
b->oldcur = pdup(b->bof, USTR "main");
pline(b->oldcur, get_file_pos(b->name));
line = b->oldcur->line - (maint->h - 1) / 2;
if (line < 0)
line = 0;
b->oldtop = pdup(b->oldcur, USTR "main");
pline(b->oldtop, line);
p_goto_bol(b->oldtop);
}
if (bw) {
long lnum = 0;
bw->o.readonly = bw->b->rdonly;
if (backopt) {
while (backopt != c) {
if (argv[backopt][0] == '+') {
sscanf((char *)(argv[backopt] + 1), "%ld", &lnum);
++backopt;
} else {
if (glopt(argv[backopt] + 1, argv[backopt + 1], &bw->o, 0) == 2)
backopt += 2;
else
backopt += 1;
lazy_opts(bw->b, &bw->o);
}
}
}
bw->b->o = bw->o;
bw->b->rdonly = bw->o.readonly;
/* Put cursor in window, so macros work properly */
maint->curwin = bw->parent;
/* Execute macro */
if (er == -1 && bw->o.mnew)
exmacro(bw->o.mnew,1);
if (er == 0 && bw->o.mold)
exmacro(bw->o.mold,1);
/* Hmm... window might not exist any more... depends on what macro does... */
if (lnum > 0)
pline(bw->cursor, lnum - 1);
else
pline(bw->cursor, get_file_pos(bw->b->name));
p_goto_bol(bw->cursor);
/* Go back to first window so windows are in same order as command line */
if (opened)
wnext(maint);
}
opened = 1;
backopt = 0;
}
if (opened) {
wshowall(maint);
omid = mid;
mid = 1;
dofollows();
mid = omid;
} else {
BW *bw = wmktw_takeref(maint, bfind_incref(USTR ""));
if (bw->o.mnew)
exmacro(bw->o.mnew,1);
}
maint->curwin = maint->topwin;
if (startup_log->eof->byte) {
BW *bw = wmktw_takeref(maint, startup_log);
startup_log = NULL;
maint->curwin = bw->parent;
wshowall(maint);
uparserr(bw);
}
if (help) {
help_on(maint);
}
if (!nonotice) {
joe_snprintf_3(msgbuf,JOE_MSGBUFSIZE,joe_gettext(_("\\i** Joe's Own Editor v%s ** (%s) ** Copyright %s 2008 **\\i")),VERSION,locale_map->name,(locale_map->type ? "©" : "(C)"));
msgnw(((BASE *)lastw(maint)->object)->parent, msgbuf);
}
if (!idleout) {
if (!isatty(fileno(stdin)) && modify_logic(maint->curwin->object, ((BW *)maint->curwin->object)->b)) {
/* Start shell going in first window */
unsigned char **a;
unsigned char *cmd;
a = vamk(10);
cmd = vsncpy(NULL, 0, sc("/bin/sh"));
a = vaadd(a, cmd);
cmd = vsncpy(NULL, 0, sc("-c"));
a = vaadd(a, cmd);
cmd = vsncpy(NULL, 0, sc("/bin/cat"));
a = vaadd(a, cmd);
cstart (maint->curwin->object, USTR "/bin/sh", a, NULL, NULL, 0, 1);
}
}
edloop(0);
save_state();
/* Delete all buffer so left over locks get eliminated */
brmall();
vclose(vmem);
nclose(n);
if (exmsg)
fprintf(stderr, "\n%s\n", exmsg);
return 0;
}
int main(int argc, char **real_argv, char **envv)
{
CAP *cap;
unsigned char **argv = (unsigned char **)real_argv;
struct stat sbuf;
unsigned char *s;
unsigned char *t;
long time_rc;
unsigned char *run;
#ifdef __MSDOS__
unsigned char *rundir;
#endif
SCRN *n;
int opened = 0;
int omid;
int backopt;
int c;
joe_locale();
mainenv = (unsigned char **)envv;
vmem = vtmp();
startup_log = bfind_scratch(USTR "* Startup Log *");
startup_log->internal = 1;
#ifdef __MSDOS__
_fmode = O_BINARY;
zlcpy(stdbuf, sizeof(stdbuf), argv[0]);
joesep(stdbuf);
run = namprt(stdbuf);
rundir = dirprt(stdbuf);
for (c = 0; run[c]; ++c)
if (run[c] == '.') {
run = vstrunc(run, c);
break;
}
#else
run = namprt(argv[0]);
#endif
if ((s = (unsigned char *)getenv("LINES")) != NULL)
sscanf((char *)s, "%d", &lines);
if ((s = (unsigned char *)getenv("COLUMNS")) != NULL)
sscanf((char *)s, "%d", &columns);
if ((s = (unsigned char *)getenv("BAUD")) != NULL)
sscanf((char *)s, "%u", (unsigned *)&Baud);
if (getenv("DOPADDING"))
dopadding = 1;
if (getenv("NOXON"))
noxon = 1;
if ((s = (unsigned char *)getenv("JOETERM")) != NULL)
joeterm = s;
#ifndef __MSDOS__
if (!(cap = my_getcap(NULL, 9600, NULL, NULL))) {
logerror_0((char *)joe_gettext(_("Couldn't load termcap/terminfo entry\n")));
goto exit_errors;
}
#endif
#ifdef __MSDOS__
s = vsncpy(NULL, 0, sv(run));
s = vsncpy(sv(s), sc("rc"));
c = procrc(cap, s);
if (c == 0)
goto donerc;
if (c == 1) {
logerror_1((char *)joe_gettext(_("There were errors in '%s'. Falling back on default.\n")), s);
}
vsrm(s);
s = vsncpy(NULL, 0, sv(rundir));
s = vsncpy(sv(s), sv(run));
s = vsncpy(sv(s), sc("rc"));
c = procrc(cap, s);
if (c == 0)
goto donerc;
if (c == 1) {
logerror_1((char *)joe_gettext(_("There were errors in '%s'. Falling back on default.\n")), s);
}
#else
/* Name of system joerc file. Try to find one with matching language... */
/* Try full language: like joerc.de_DE */
t = vsncpy(NULL, 0, sc(JOERC));
t = vsncpy(sv(t), sv(run));
t = vsncpy(sv(t), sc("rc."));
t = vsncpy(sv(t), sz(locale_msgs));
if (!stat((char *)t,&sbuf))
time_rc = sbuf.st_mtime;
else {
/* Try generic language: like joerc.de */
if (locale_msgs[0] && locale_msgs[1] && locale_msgs[2]=='_') {
vsrm(t);
t = vsncpy(NULL, 0, sc(JOERC));
t = vsncpy(sv(t), sv(run));
t = vsncpy(sv(t), sc("rc."));
t = vsncpy(sv(t), locale_msgs, 2);
if (!stat((char *)t,&sbuf))
time_rc = sbuf.st_mtime;
else
goto nope;
} else {
nope:
vsrm(t);
/* Try Joe's bad english */
t = vsncpy(NULL, 0, sc(JOERC));
t = vsncpy(sv(t), sv(run));
t = vsncpy(sv(t), sc("rc"));
if (!stat((char *)t,&sbuf))
time_rc = sbuf.st_mtime;
else
time_rc = 0;
}
}
/* User's joerc file */
s = (unsigned char *)getenv("HOME");
if (s) {
s = vsncpy(NULL, 0, sz(s));
s = vsncpy(sv(s), sc("/."));
s = vsncpy(sv(s), sv(run));
s = vsncpy(sv(s), sc("rc"));
if (!stat((char *)s,&sbuf)) {
if (sbuf.st_mtime < time_rc) {
logmessage_2((char *)joe_gettext(_("Warning: %s is newer than your %s.\n")),t,s);
}
}
c = procrc(cap, s);
if (c == 0) {
vsrm(t);
goto donerc;
}
if (c == 1) {
logerror_1((char *)joe_gettext(_("There were errors in '%s'. Falling back on default.\n")), s);
}
}
vsrm(s);
s = t;
c = procrc(cap, s);
if (c == 0)
goto donerc;
if (c == 1) {
logerror_1((char *)joe_gettext(_("There were errors in '%s'. Falling back on default.\n")), s);
}
/* Try built-in joerc */
s = vsncpy(NULL, 0, sc("*"));
s = vsncpy(sv(s), sv(run));
s = vsncpy(sv(s), sc("rc"));
c = procrc(cap, s);
if (c != 0 && c != 1) {
/* If *fancyjoerc not present, use *joerc which is always there */
s = vstrunc(s, 0);
s = vsncpy(sv(s),sc("*joerc"));
c = procrc(cap, s);
}
if (c == 0)
goto donerc;
if (c == 1) {
logerror_1((char *)joe_gettext(_("There were errors in '%s'. Falling back on default.\n")), s);
}
#endif
logerror_1((char *)joe_gettext(_("Couldn't open '%s'\n")), s);
goto exit_errors;
return 1;
donerc:
if (validate_rc()) {
logerror_0((char *)joe_gettext(_("rc file has no :main key binding section or no bindings. Bye.\n")));
goto exit_errors;
}
{
unsigned char buf[10];
int x;
zlcpy(buf, sizeof(buf), USTR "\"`\" ` ");
type_backtick = mparse(0, buf, &x, 0);
}
shell_kbd = mkkbd(kmap_getcontext(USTR "shell"));
if (!isatty(fileno(stdin)))
idleout = 0;
for (c = 1; argv[c]; ++c) {
if (argv[c][0] == '-') {
if (argv[c][1])
switch (glopt(argv[c] + 1, argv[c + 1], NULL, 1)) {
case 0:
logerror_1((char *)joe_gettext(_("Unknown option '%s'\n")), argv[c]);
break;
case 1:
break;
case 2:
++c;
break;
} else
idleout = 0;
}
}
/* initialize mouse support */
if (xmouse && (s=(unsigned char *)getenv("TERM")) && strstr((char *)s,"xterm"))
usexmouse=1;
if (!(n = nopen(cap)))
goto exit_errors;
maint = screate(n);
load_state();
/* It would be better if this ran uedit() to load files */
/* The business with backopt is to load the file first, then apply file
* local options afterwords */
/* orphan is not compatible with exemac()- macros need a window to exist */
for (c = 1, backopt = 0; argv[c]; ++c)
if (argv[c][0] == '+' && argv[c][1]>='0' && argv[c][1]<='9') {
if (!backopt)
backopt = c;
} else if (argv[c][0] == '-' && argv[c][1]) {
if (!backopt)
backopt = c;
if (glopt(argv[c] + 1, argv[c + 1], NULL, 0) == 2)
++c;
} else {
B *b = bfind(argv[c]);
BW *bw = NULL;
int er = berror;
/* This is too annoying */
/* set_current_dir(argv[c],1); */
setup_history(&filehist);
append_history(filehist,sz(argv[c]));
/* wmktw inserts the window before maint->curwin */
if (!orphan || !opened) {
bw = wmktw(maint, b);
if (er)
msgnwt(bw->parent, joe_gettext(msgs[-er]));
} else {
long line;
b->orphan = 1;
b->oldcur = pdup(b->bof, USTR "main");
pline(b->oldcur, get_file_pos(b->name));
p_goto_bol(b->oldcur);
line = b->oldcur->line - (maint->h - 1) / 2;
if (line < 0)
line = 0;
b->oldtop = pdup(b->oldcur, USTR "main");
pline(b->oldtop, line);
p_goto_bol(b->oldtop);
}
if (bw) {
long lnum = 0;
bw->o.readonly = bw->b->rdonly;
if (backopt) {
while (backopt != c) {
if (argv[backopt][0] == '+') {
sscanf((char *)(argv[backopt] + 1), "%ld", &lnum);
++backopt;
} else {
if (glopt(argv[backopt] + 1, argv[backopt + 1], &bw->o, 0) == 2)
backopt += 2;
else
backopt += 1;
lazy_opts(bw->b, &bw->o);
}
}
}
bw->b->o = bw->o;
bw->b->rdonly = bw->o.readonly;
/* Put cursor in window, so macros work properly */
maint->curwin = bw->parent;
/* Execute macro */
if (er == -1 && bw->o.mnew)
exmacro(bw->o.mnew,1);
if (er == 0 && bw->o.mold)
exmacro(bw->o.mold,1);
/* Hmm... window might not exist any more... depends on what macro does... */
if (lnum > 0)
pline(bw->cursor, lnum - 1);
else
pline(bw->cursor, get_file_pos(bw->b->name));
p_goto_bol(bw->cursor);
/* Go back to first window so windows are in same order as command line */
if (opened)
wnext(maint);
}
opened = 1;
backopt = 0;
}
if (opened) {
wshowall(maint);
omid = mid;
mid = 1;
dofollows();
mid = omid;
} else {
BW *bw = wmktw(maint, bfind(USTR ""));
if (bw->o.mnew)
exmacro(bw->o.mnew,1);
}
maint->curwin = maint->topwin;
if (logerrors) {
B *copied = bcpy(startup_log->bof, startup_log->eof);
BW *bw = wmktw(maint, copied);
copied->name = zdup(startup_log->name);
copied->internal = 1;
maint->curwin = bw->parent;
wshowall(maint);
}
if (help) {
help_on(maint);
}
if (!nonotice) {
joe_snprintf_3(msgbuf,JOE_MSGBUFSIZE,joe_gettext(_("\\i** Joe's Own Editor v%s ** (%s) ** Copyright %s 2015 **\\i")),VERSION,locale_map->name,(locale_map->type ? "©" : "(C)"));
msgnw(((BASE *)lastw(maint)->object)->parent, msgbuf);
}
if (!idleout) {
if (!isatty(fileno(stdin)) && modify_logic(maint->curwin->object, ((BW *)maint->curwin->object)->b)) {
/* Start shell going in first window */
unsigned char **a;
unsigned char *cmd;
a = vamk(10);
cmd = vsncpy(NULL, 0, sc("/bin/sh"));
a = vaadd(a, cmd);
cmd = vsncpy(NULL, 0, sc("-c"));
a = vaadd(a, cmd);
cmd = vsncpy(NULL, 0, sc("/bin/cat"));
a = vaadd(a, cmd);
cstart (maint->curwin->object, USTR "/bin/sh", a, NULL, NULL, 0, 1, NULL, 0);
}
}
edloop(0);
save_state();
/* Delete all buffer so left over locks get eliminated */
brmall();
vclose(vmem);
nclose(n);
if (noexmsg) {
if (notite)
fprintf(stderr, "\n");
} else {
if (exmsg)
fprintf(stderr, "\n%s\n", exmsg);
else if (notite)
fprintf(stderr, "\n");
}
return 0;
exit_errors:
/* Write out error log to console if we are exiting with errors. */
if (startup_log && startup_log->eof->byte)
bsavefd(startup_log->bof, 2, startup_log->eof->byte);
return 1;
}
int main(int argc, char *argv[])
{
double interval;
int fd, rc;
reload_pending = 0;
sym_names_count = sizeof(sym_names) / sizeof(struct symbol_names);
varinfo_size = VARINFO_SIZE;
varinfo = calloc(varinfo_size, 1);
if (!varinfo) {
cpuplugd_error("Out of memory: varinfo\n");
exit(1);
}
/*
* varinfo must start with '\n' for correct string matching
* in get_var_rvalue().
*/
varinfo[0] = '\n';
/* Parse the command line options */
parse_options(argc, argv);
/* flock() lock file to prevent multiple instances of cpuplugd */
fd = open(LOCKFILE, O_CREAT | O_RDONLY, S_IRUSR);
if (fd == -1) {
cpuplugd_error("Cannot open lock file %s: %s\n", LOCKFILE,
strerror(errno));
exit(1);
}
rc = flock(fd, LOCK_EX | LOCK_NB);
if (rc) {
cpuplugd_error("flock() failed on lock file %s: %s\nThis might "
"indicate that an instance of this daemon is "
"already running.\n", LOCKFILE, strerror(errno));
exit(1);
}
/* Make sure that the daemon is not started multiple times */
check_if_started_twice();
/* Store daemon pid also in foreground mode */
handle_signals();
handle_sighup();
/* Need 1 history level minimum for internal symbols */
history_max = 1;
/*
* Parse arguments from the configuration file, also calculate
* history_max
*/
parse_configfile(configfile);
if (history_max > MAX_HISTORY)
cpuplugd_exit("History depth %i exceeded maximum (%i)\n",
history_max, MAX_HISTORY);
/* Check the settings in the configuration file */
check_config();
if (!foreground) {
rc = daemon(1, 0);
if (rc < 0)
cpuplugd_exit("Detach from terminal failed: %s\n",
strerror(errno));
}
/* Store daemon pid */
store_pid();
/* Unlock lock file */
flock(fd, LOCK_UN);
close(fd);
/* Install signal handler for floating point exceptions */
rc = feenableexcept(FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW |
FE_INVALID);
act.sa_flags = SA_NODEFER;
sigemptyset(&act.sa_mask);
act.sa_handler = sigfpe_handler;
if (sigaction(SIGFPE, &act, NULL) < 0)
cpuplugd_exit("sigaction( SIGFPE, ... ) failed - reason %s\n",
strerror(errno));
setup_history();
/* Main loop */
while (1) {
if (reload_pending) { // check for daemon reload
reload_daemon();
reload_pending = 0;
}
history_prev = history_current;
history_current = (history_current + 1) % (history_max + 1);
time_read(×tamps[history_current]);
proc_read(meminfo + history_current * meminfo_size,
"/proc/meminfo", meminfo_size);
proc_read(vmstat + history_current * vmstat_size,
"/proc/vmstat", vmstat_size);
proc_cpu_read(cpustat + history_current * cpustat_size);
interval = timestamps[history_current] -
timestamps[history_prev];
cpuplugd_debug("config update interval: %ld seconds\n",
cfg.update);
cpuplugd_debug("real update interval: %f seconds\n", interval);
/* Run code that may signal failure via longjmp. */
if (cpu == 1) {
if (setjmp(jmpenv) == 0)
eval_cpu_rules();
else
cpuplugd_error("Floating point exception, "
"skipping cpu rule "
"evaluation.\n");
}
if (memory == 1) {
if (setjmp(jmpenv) == 0)
eval_mem_rules(interval);
else
cpuplugd_error("Floating point exception, "
"skipping memory rule "
"evaluation.\n");
}
sleep(cfg.update);
}
return 0;
}
