Check for >= 255 since sign extension from byte to u_int sometimes makes
the value for "unknown" 0xffffffff. The underlying kernel drivers should be updated to only return 255 but the ABI is used by too many userland utilities. Also, make this WARNS 6 compatible.
This commit is contained in:
Nate Lawson
parent
e8b4d56eb5
commit
a607c5e4cb
@ -4,5 +4,6 @@ PROG= apm
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MAN= apm.8
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MLINKS= apm.8 apmconf.8
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MANSUBDIR= /i386
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WARNS?= 6
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.include <bsd.prog.mk>
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@ -40,8 +40,8 @@ __FBSDID("$FreeBSD$");
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int cmos_wall = 0; /* True when wall time is in cmos clock, else UTC */
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void
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usage()
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static void
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usage(void)
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{
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fprintf(stderr, "%s\n%s\n",
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"usage: apm [-ablstzZ] [-d enable ] [ -e enable ] "
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@ -54,7 +54,7 @@ usage()
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* Return 1 for boolean true, and 0 for false, according to the
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* interpretation of the string argument given.
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*/
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int
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static int
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is_true(const char *boolean) {
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char *endp;
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long val;
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@ -74,9 +74,11 @@ is_true(const char *boolean) {
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warnx("invalid boolean argument \"%s\"", boolean);
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usage();
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/* NOTREACHED */
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return (0);
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}
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int
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static int
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int2bcd(int i)
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{
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int retval = 0;
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@ -93,7 +95,7 @@ int2bcd(int i)
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return retval;
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}
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int
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static int
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bcd2int(int bcd)
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{
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int retval = 0;
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@ -110,28 +112,28 @@ bcd2int(int bcd)
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return retval;
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}
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void
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static void
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apm_suspend(int fd)
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{
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if (ioctl(fd, APMIO_SUSPEND, NULL) == -1)
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err(1, "ioctl(APMIO_SUSPEND)");
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}
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void
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static void
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apm_standby(int fd)
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{
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if (ioctl(fd, APMIO_STANDBY, NULL) == -1)
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err(1, "ioctl(APMIO_STANDBY)");
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}
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void
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static void
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apm_getinfo(int fd, apm_info_t aip)
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{
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if (ioctl(fd, APMIO_GETINFO, aip) == -1)
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err(1, "ioctl(APMIO_GETINFO)");
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}
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void
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static void
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apm_enable(int fd, int enable) {
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if (enable) {
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@ -143,36 +145,34 @@ apm_enable(int fd, int enable) {
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}
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}
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void
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static void
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print_all_info(int fd, apm_info_t aip, int bioscall_available)
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{
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struct apm_bios_arg args;
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int apmerr;
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const char *batt_msg[] = { "high", "low", "critical", "charging" };
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const char *line_msg[] = { "off-line", "on-line" };
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printf("APM version: %d.%d\n", aip->ai_major, aip->ai_minor);
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printf("APM Management: %s\n", (aip->ai_status ? "Enabled" : "Disabled"));
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printf("APM Management: %s\n", aip->ai_status ? "Enabled" : "Disabled");
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printf("AC Line status: ");
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if (aip->ai_acline == 255)
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if (aip->ai_acline >= 255)
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printf("unknown");
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else if (aip->ai_acline > 1)
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printf("invalid value (0x%x)", aip->ai_acline);
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else {
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char *messages[] = { "off-line", "on-line" };
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printf("%s", messages[aip->ai_acline]);
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}
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else
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printf("%s", line_msg[aip->ai_acline]);
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printf("\n");
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printf("Battery status: ");
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if (aip->ai_batt_stat == 255)
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if (aip->ai_batt_stat >= 255)
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printf("unknown");
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else if (aip->ai_batt_stat > 3)
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printf("invalid value (0x%x)", aip->ai_batt_stat);
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else {
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char *messages[] = { "high", "low", "critical", "charging" };
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printf("%s", messages[aip->ai_batt_stat]);
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}
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printf("invalid value (0x%x)", aip->ai_batt_stat);
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else
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printf("%s", batt_msg[aip->ai_batt_stat]);
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printf("\n");
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printf("Remaining battery life: ");
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if (aip->ai_batt_life == 255)
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if (aip->ai_batt_life >= 255)
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printf("unknown\n");
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else if (aip->ai_batt_life <= 100)
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printf("%d%%\n", aip->ai_batt_life);
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@ -194,10 +194,10 @@ print_all_info(int fd, apm_info_t aip, int bioscall_available)
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}
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if (aip->ai_infoversion >= 1) {
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printf("Number of batteries: ");
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if (aip->ai_batteries == (u_int) -1)
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if (aip->ai_batteries >= 255)
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printf("unknown\n");
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else {
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int i;
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u_int i;
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struct apm_pwstatus aps;
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printf("%d\n", aip->ai_batteries);
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@ -208,26 +208,21 @@ print_all_info(int fd, apm_info_t aip, int bioscall_available)
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continue;
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printf("Battery %d:\n", i);
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printf("\tBattery status: ");
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if (aps.ap_batt_flag != 255 &&
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if (aps.ap_batt_flag <= 255 &&
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(aps.ap_batt_flag & APM_BATT_NOT_PRESENT)) {
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printf("not present\n");
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continue;
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}
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if (aps.ap_batt_stat == 255)
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if (aps.ap_batt_stat >= 255)
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printf("unknown\n");
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else if (aps.ap_batt_stat > 3)
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printf("invalid value (0x%x)\n",
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aps.ap_batt_stat);
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else {
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char *messages[] = { "high",
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"low",
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"critical",
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"charging" };
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else
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printf("%s\n",
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messages[aps.ap_batt_stat]);
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}
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batt_msg[aps.ap_batt_stat]);
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printf("\tRemaining battery life: ");
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if (aps.ap_batt_life == 255)
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if (aps.ap_batt_life >= 255)
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printf("unknown\n");
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else if (aps.ap_batt_life <= 100)
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printf("%d%%\n", aps.ap_batt_life);
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@ -343,14 +338,14 @@ print_all_info(int fd, apm_info_t aip, int bioscall_available)
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* currently, it can turn off the display, but the display never comes
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* back until the machine suspend/resumes :-).
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*/
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void
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static void
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apm_display(int fd, int newstate)
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{
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if (ioctl(fd, APMIO_DISPLAY, &newstate) == -1)
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err(1, "ioctl(APMIO_DISPLAY)");
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}
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void
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static void
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apm_haltcpu(int fd, int enable) {
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if (enable) {
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@ -362,7 +357,7 @@ apm_haltcpu(int fd, int enable) {
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}
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}
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void
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static void
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apm_set_timer(int fd, int delta)
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{
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time_t tmr;
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@ -394,7 +389,7 @@ int
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main(int argc, char *argv[])
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{
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int c, fd;
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int sleep = 0, all_info = 1, apm_status = 0, batt_status = 0;
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int dosleep = 0, all_info = 1, apm_status = 0, batt_status = 0;
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int display = -1, batt_life = 0, ac_status = 0, standby = 0;
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int batt_time = 0, delta = 0, enable = -1, haltcpu = -1;
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char *cmdname;
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@ -410,7 +405,7 @@ main(int argc, char *argv[])
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cmdname = argv[0];
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if (strcmp(cmdname, "zzz") == 0) {
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sleep = 1;
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dosleep = 1;
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all_info = 0;
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goto finish_option;
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}
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@ -455,7 +450,7 @@ main(int argc, char *argv[])
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all_info = 0;
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break;
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case 'z':
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sleep = 1;
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dosleep = 1;
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all_info = 0;
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break;
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case 'Z':
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@ -470,7 +465,8 @@ main(int argc, char *argv[])
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argv += optind;
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}
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finish_option:
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if (haltcpu != -1 || enable != -1 || display != -1 || delta || sleep || standby) {
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if (haltcpu != -1 || enable != -1 || display != -1 || delta || dosleep
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|| standby) {
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fd = open(APMDEV, O_RDWR);
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bioscall_available = 1;
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} else if ((fd = open(APMDEV, O_RDWR)) >= 0)
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@ -485,7 +481,7 @@ main(int argc, char *argv[])
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apm_haltcpu(fd, haltcpu);
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if (delta)
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apm_set_timer(fd, delta);
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if (sleep)
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if (dosleep)
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apm_suspend(fd);
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else if (standby)
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apm_standby(fd);
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