diff options
Diffstat (limited to '')
| -rw-r--r-- | LICENSE | 2 | ||||
| -rw-r--r-- | README | 10 | ||||
| -rw-r--r-- | alsause.1 | 18 | ||||
| -rw-r--r-- | alsause.c | 30 |
4 files changed, 44 insertions, 16 deletions
@@ -1,6 +1,6 @@ ISC License -© 2024 Mattias Andrée <maandree@kth.se> +© 2024, 2025 Mattias Andrée <m@maandree.se> Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above @@ -1,18 +1,18 @@ NAME alsause - Set default ALSA PCM device -SYNPOSIS +SYNOPSIS alsause [(-r | name | card:device) [command [argument] ...]] DESCRIPTION The alsause utility lists all ALSA PCM devices or sets, either for the user or for a program it starts, the default ALSA PCM device. - No options or operands are specified, alsause will list all ALSA PCM + If no options or operands are specified, alsause will list all ALSA PCM devices, otherwise it will set the default ALSA PCM device. If command is specified, alsause will run that command with the default - ALSA PCM device set only for that process and it's child processes. + ALSA PCM device set only for that process and its child processes. OPTIONS The alsause utility conforms to the Base Definitions volume of @@ -24,7 +24,7 @@ OPTIONS to the system-wide default ALSA PCM device. OPERANDS - The following operands shall be supported: + The following operands are supported: card:device The card number and device number to use as the default ALSA PCM @@ -55,4 +55,4 @@ EXIT STATUS 127 The utility specified by command could not be found. SEE ALSO - None. + galsause(1) @@ -1,7 +1,7 @@ .TH ALSAUSE 1 ALSAUSE .SH NAME alsause - Set default ALSA PCM device -.SH SYNPOSIS +.SH SYNOPSIS .B alsause .RB [( \-r | @@ -17,7 +17,7 @@ utility lists all ALSA PCM devices or sets, either for the user or for a program it starts, the default ALSA PCM device. .PP -No options or operands are specified, +If no options or operands are specified, .B alsause will list all ALSA PCM devices, otherwise it will set the default ALSA PCM device. @@ -28,7 +28,7 @@ is specified, .B alsause will run that command with the default ALSA PCM device set only for that process -and it's child processes. +and its child processes. .SH OPTIONS The .B alsause @@ -41,7 +41,7 @@ The following option is supported: Remove the user-specified default ALSA PCM device, falling back to the system-wide default ALSA PCM device. .SH OPERANDS -The following operands shall be supported: +The following operands are supported: .TP .IR card : device The card number and device number to use as the default @@ -69,7 +69,7 @@ None. The following environment variable affects the execution of .TP .I HOME -Used to override the path to the user's home directroy. +Used to override the path to the user's home directory. .TP .I PATH Determine the location of the @@ -84,7 +84,7 @@ utility. .SH ASYNCHRONOUS EVENTS Default. .SH STDOUT -If no option or operand is specified, each ALSA PCM device is the form: +If no option or operand is specified, each ALSA PCM device is of the form: .RS \fB\(dq%u:%u\et%s - %s\en\(dq,\fP <\fIcard number\fP>\fB,\fP <\fIdevice number\fP>\fB,\fP <\fIcard name\fP>\fB,\fP <\fIdevice name\fP> @@ -94,9 +94,9 @@ Otherwise, the .B alsause utility does not write to standard output. .SH STDERR -The standard error shall be used only for diagnostic messages. +The standard error is only used for diagnostic messages. .SH OUTPUT FILES -If the the default ALSA PCM device is set, the +If the default ALSA PCM device is set, the .B alsause utility may create, modify, replace, or unlink the file .I .asoundrc @@ -134,4 +134,4 @@ The utility specified by .I command could not be found. .SH SEE ALSO -None. +.BR galsause (1) @@ -1,5 +1,15 @@ /* See LICENSE file for copyright and license details. */ #include <sys/mount.h> +#ifndef OPEN_TREE_CLONE +# define MISSING_OPEN_TREE +#endif +#ifndef MOVE_MOUNT_F_EMPTY_PATH +# define MISSING_MOVE_MOUNT +#endif +#if defined(MISSING_OPEN_TREE) || defined(MISSING_MOVE_MOUNT) +# include <linux/mount.h> +# include <sys/syscall.h> +#endif #include <sched.h> #include <alsa/asoundlib.h> #include <libsimple.h> @@ -8,6 +18,24 @@ NUSAGE(125, "[(-r | name | card:device) [command [argument] ...]]"); +#ifdef MISSING_OPEN_TREE +static int +open_tree(int dirfd, const char *path, int flags) +{ + return syscall(SYS_open_tree, dirfd, path, flags); +} +#endif + + +#ifdef MISSING_MOVE_MOUNT +static int +move_mount(int dirfd1, const char *path1, int dirfd2, const char *path2, int flags) +{ + return syscall(SYS_move_mount, dirfd1, path1, dirfd2, path2, flags); +} +#endif + + static char * get_config_path(void) { @@ -277,7 +305,7 @@ main(int argc, char *argv[]) treefd = open_tree(AT_FDCWD, temppath, OPEN_TREE_CLONE | OPEN_TREE_CLOEXEC); if (treefd < 0) { - weprintf("open_tree AT_FDCWD %s OPEN_TREE_CLONE:", temppath); + weprintf("open_tree AT_FDCWD %s OPEN_TREE_CLONE|OPEN_TREE_CLOEXEC:", temppath); unlink(temppath); exit(libsimple_default_failure_exit); } |