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bash 3 loops
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From: |
Freddy |
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Subject: |
bash 3 loops |
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Date: |
Sun, 28 Nov 2004 23:34:58 +0100 |
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User-agent: |
Mozilla Thunderbird 0.9 (Windows/20041103) |
im no coder, but perhaps someone can help me figure out what has gone
wrong here. bash 3 was compiled with gcc version 3.4.3 and prefix=/usr.
strace:
read(0, "\r", 1) = 1
write(2, "\n", 1) = 1
rt_sigprocmask(SIG_BLOCK, [INT], [], 8) = 0
ioctl(0, SNDCTL_TMR_STOP or TCSETSW, {B38400 opost isig icanon echo
...}) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGINT, {0x80893d0, [], 0}, {0x80bafa0, [], 0}, 8) = 0
rt_sigaction(SIGTERM, {SIG_IGN}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGQUIT, {SIG_IGN}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGALRM, {0x8089340, [HUP INT ILL TRAP ABRT BUS FPE USR1
SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], 0}, {0x80bafa0, [], 0},
8) = 0
rt_sigaction(SIGTSTP, {SIG_IGN}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGTTOU, {SIG_IGN}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGTTIN, {SIG_IGN}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGWINCH, {0x807a6b0, [], 0}, {0x80bb030, [], SA_RESTART},
8) = 0
rt_sigaction(SIGINT, {0x80893d0, [], 0}, {0x80893d0, [], 0}, 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0
rt_sigaction(SIGINT, {0x80893d0, [], 0}, {0x80893d0, [], 0}, 8) = 0
time(NULL) = 1101679956
rt_sigprocmask(SIG_BLOCK, [CHLD TSTP TTIN TTOU], [], 8) = 0
ioctl(255, TIOCSPGRP, [21233]) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGINT, {0x80893d0, [], 0}, {0x80893d0, [], 0}, 8) = 0
rt_sigprocmask(SIG_BLOCK, [INT], [], 8) = 0
ioctl(0, TIOCGWINSZ, {ws_row=24, ws_col=110, ws_xpixel=0, ws_ypixel=0}) = 0
ioctl(0, TIOCSWINSZ, {ws_row=24, ws_col=110, ws_xpixel=0, ws_ypixel=0}) = 0
ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo
...}) = 0
ioctl(0, SNDCTL_TMR_STOP or TCSETSW, {B38400 opost isig -icanon -echo
...}) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGINT, {0x80bafa0, [], 0}, {0x80893d0, [], 0}, 8) = 0
rt_sigaction(SIGTERM, {0x80bafa0, [], 0}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGTERM, {SIG_IGN}, {0x80bafa0, [], 0}, 8) = 0
rt_sigaction(SIGQUIT, {0x80bafa0, [], 0}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGQUIT, {SIG_IGN}, {0x80bafa0, [], 0}, 8) = 0
rt_sigaction(SIGALRM, {0x80bafa0, [], 0}, {0x8089340, [HUP INT ILL TRAP
ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], 0}, 8) = 0
rt_sigaction(SIGTSTP, {0x80bafa0, [], 0}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGTSTP, {SIG_IGN}, {0x80bafa0, [], 0}, 8) = 0
rt_sigaction(SIGTTOU, {0x80bafa0, [], 0}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGTTOU, {SIG_IGN}, {0x80bafa0, [], 0}, 8) = 0
rt_sigaction(SIGTTIN, {0x80bafa0, [], 0}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGTTIN, {SIG_IGN}, {0x80bafa0, [], 0}, 8) = 0
rt_sigaction(SIGWINCH, {0x80bb030, [], SA_RESTART}, {0x807a6b0, [], 0},
8) = 0
write(2, "root@obra:/tmp/bash-3.0# ", 25) = 25
rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0
read(0, "\r", 1) = 1
write(2, "\n", 1) = 1
rt_sigprocmask(SIG_BLOCK, [INT], [], 8) = 0
ioctl(0, SNDCTL_TMR_STOP or TCSETSW, {B38400 opost isig icanon echo
...}) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGINT, {0x80893d0, [], 0}, {0x80bafa0, [], 0}, 8) = 0
rt_sigaction(SIGTERM, {SIG_IGN}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGQUIT, {SIG_IGN}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGALRM, {0x8089340, [HUP INT ILL TRAP ABRT BUS FPE USR1
SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], 0}, {0x80bafa0, [], 0},
8) = 0
rt_sigaction(SIGTSTP, {SIG_IGN}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGTTOU, {SIG_IGN}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGTTIN, {SIG_IGN}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGWINCH, {0x807a6b0, [], 0}, {0x80bb030, [], SA_RESTART},
8) = 0
rt_sigaction(SIGINT, {0x80893d0, [], 0}, {0x80893d0, [], 0}, 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0
rt_sigaction(SIGINT, {0x80893d0, [], 0}, {0x80893d0, [], 0}, 8) = 0
time(NULL) = 1101679957
rt_sigprocmask(SIG_BLOCK, [CHLD TSTP TTIN TTOU], [], 8) = 0
ioctl(255, TIOCSPGRP, [21233]) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGINT, {0x80893d0, [], 0}, {0x80893d0, [], 0}, 8) = 0
rt_sigprocmask(SIG_BLOCK, [INT], [], 8) = 0
ioctl(0, TIOCGWINSZ, {ws_row=24, ws_col=110, ws_xpixel=0, ws_ypixel=0}) = 0
ioctl(0, TIOCSWINSZ, {ws_row=24, ws_col=110, ws_xpixel=0, ws_ypixel=0}) = 0
ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo
...}) = 0
ioctl(0, SNDCTL_TMR_STOP or TCSETSW, {B38400 opost isig -icanon -echo
...}) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGINT, {0x80bafa0, [], 0}, {0x80893d0, [], 0}, 8) = 0
rt_sigaction(SIGTERM, {0x80bafa0, [], 0}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGTERM, {SIG_IGN}, {0x80bafa0, [], 0}, 8) = 0
rt_sigaction(SIGQUIT, {0x80bafa0, [], 0}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGQUIT, {SIG_IGN}, {0x80bafa0, [], 0}, 8) = 0
rt_sigaction(SIGALRM, {0x80bafa0, [], 0}, {0x8089340, [HUP INT ILL TRAP
ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], 0}, 8) = 0
rt_sigaction(SIGTSTP, {0x80bafa0, [], 0}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGTSTP, {SIG_IGN}, {0x80bafa0, [], 0}, 8) = 0
rt_sigaction(SIGTTOU, {0x80bafa0, [], 0}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGTTOU, {SIG_IGN}, {0x80bafa0, [], 0}, 8) = 0
rt_sigaction(SIGTTIN, {0x80bafa0, [], 0}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGTTIN, {SIG_IGN}, {0x80bafa0, [], 0}, 8) = 0
rt_sigaction(SIGWINCH, {0x80bb030, [], SA_RESTART}, {0x807a6b0, [], 0},
8) = 0
write(2, "root@obra:/tmp/bash-3.0# ", 25) = 25
rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0
read(0, "\r", 1) = 1
write(2, "\n", 1) = 1
rt_sigprocmask(SIG_BLOCK, [INT], [], 8) = 0
ioctl(0, SNDCTL_TMR_STOP or TCSETSW, {B38400 opost isig icanon echo
...}) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGINT, {0x80893d0, [], 0}, {0x80bafa0, [], 0}, 8) = 0
rt_sigaction(SIGTERM, {SIG_IGN}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGQUIT, {SIG_IGN}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGALRM, {0x8089340, [HUP INT ILL TRAP ABRT BUS FPE USR1
SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], 0}, {0x80bafa0, [], 0},
8) = 0
rt_sigaction(SIGTSTP, {SIG_IGN}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGTTOU, {SIG_IGN}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGTTIN, {SIG_IGN}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGWINCH, {0x807a6b0, [], 0}, {0x80bb030, [], SA_RESTART},
8) = 0
rt_sigaction(SIGINT, {0x80893d0, [], 0}, {0x80893d0, [], 0}, 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0
rt_sigaction(SIGINT, {0x80893d0, [], 0}, {0x80893d0, [], 0}, 8) = 0
time(NULL) = 1101679957
rt_sigprocmask(SIG_BLOCK, [CHLD TSTP TTIN TTOU], [], 8) = 0
ioctl(255, TIOCSPGRP, [21233]) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGINT, {0x80893d0, [], 0}, {0x80893d0, [], 0}, 8) = 0
rt_sigprocmask(SIG_BLOCK, [INT], [], 8) = 0
ioctl(0, TIOCGWINSZ, {ws_row=24, ws_col=110, ws_xpixel=0, ws_ypixel=0}) = 0
ioctl(0, TIOCSWINSZ, {ws_row=24, ws_col=110, ws_xpixel=0, ws_ypixel=0}) = 0
ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo
...}) = 0
ioctl(0, SNDCTL_TMR_STOP or TCSETSW, {B38400 opost isig -icanon -echo
...}) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGINT, {0x80bafa0, [], 0}, {0x80893d0, [], 0}, 8) = 0
rt_sigaction(SIGTERM, {0x80bafa0, [], 0}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGTERM, {SIG_IGN}, {0x80bafa0, [], 0}, 8) = 0
rt_sigaction(SIGQUIT, {0x80bafa0, [], 0}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGQUIT, {SIG_IGN}, {0x80bafa0, [], 0}, 8) = 0
rt_sigaction(SIGALRM, {0x80bafa0, [], 0}, {0x8089340, [HUP INT ILL TRAP
ABRT BUS FPE USR1 SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], 0}, 8) = 0
rt_sigaction(SIGTSTP, {0x80bafa0, [], 0}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGTSTP, {SIG_IGN}, {0x80bafa0, [], 0}, 8) = 0
rt_sigaction(SIGTTOU, {0x80bafa0, [], 0}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGTTOU, {SIG_IGN}, {0x80bafa0, [], 0}, 8) = 0
rt_sigaction(SIGTTIN, {0x80bafa0, [], 0}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGTTIN, {SIG_IGN}, {0x80bafa0, [], 0}, 8) = 0
rt_sigaction(SIGWINCH, {0x80bb030, [], SA_RESTART}, {0x807a6b0, [], 0},
8) = 0
write(2, "root@obra:/tmp/bash-3.0# ", 25) = 25
rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0
read(0, "l", 1) = 1
write(2, "l", 1) = 1
rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0
read(0, "s", 1) = 1
write(2, "s", 1) = 1
rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0
read(0, "\r", 1) = 1
write(2, "\n", 1) = 1
rt_sigprocmask(SIG_BLOCK, [INT], [], 8) = 0
ioctl(0, SNDCTL_TMR_STOP or TCSETSW, {B38400 opost isig icanon echo
...}) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGINT, {0x80893d0, [], 0}, {0x80bafa0, [], 0}, 8) = 0
rt_sigaction(SIGTERM, {SIG_IGN}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGQUIT, {SIG_IGN}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGALRM, {0x8089340, [HUP INT ILL TRAP ABRT BUS FPE USR1
SEGV USR2 PIPE ALRM TERM XCPU XFSZ VTALRM SYS], 0}, {0x80bafa0, [], 0},
8) = 0
rt_sigaction(SIGTSTP, {SIG_IGN}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGTTOU, {SIG_IGN}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGTTIN, {SIG_IGN}, {SIG_IGN}, 8) = 0
rt_sigaction(SIGWINCH, {0x807a6b0, [], 0}, {0x80bb030, [], SA_RESTART},
8) = 0
rt_sigaction(SIGINT, {0x80893d0, [], 0}, {0x80893d0, [], 0}, 8) = 0
time(NULL) = 1101679962
stat64(".", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
stat64("/usr/local/sbin/ls", 0xbffff7c0) = -1 ENOENT (No such file or
directory)
stat64("/usr/sbin/ls", 0xbffff7c0) = -1 ENOENT (No such file or
directory)
stat64("/sbin/ls", 0xbffff7c0) = -1 ENOENT (No such file or
directory)
stat64("/usr/local/bin/ls", 0xbffff7c0) = -1 ENOENT (No such file or
directory)
stat64("/usr/bin/ls", {st_mode=S_IFREG|0755, st_size=72608, ...}) = 0
stat64("/usr/bin/ls", {st_mode=S_IFREG|0755, st_size=72608, ...}) = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
fork() = 21237
setpgid(21237, 21237) = -1 EACCES (Permission denied)
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD (Child exited) @ 0 (0) ---
waitpid(-1, 0xbffff51c, WNOHANG|WUNTRACED|0x8) = -1 EINVAL (Invalid
argument)
sigreturn() = ? (mask now [])
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD TSTP TTIN TTOU], [CHLD], 8) = 0
ioctl(255, TIOCSPGRP, [21237]) = 0
rt_sigprocmask(SIG_SETMASK, [CHLD], NULL, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
waitpid(-1, 0xbffff908, WUNTRACED|0x8) = -1 EINVAL (Invalid argument)
waitpid(-1, 0xbffff908, WUNTRACED|0x8) = -1 EINVAL (Invalid argument)
waitpid(-1, 0xbffff908, WUNTRACED|0x8) = -1 EINVAL (Invalid argument)
waitpid(-1, 0xbffff908, WUNTRACED|0x8) = -1 EINVAL (Invalid argument)
waitpid(-1, 0xbffff908, WUNTRACED|0x8) = -1 EINVAL (Invalid argument)
waitpid(-1, 0xbffff908, WUNTRACED|0x8) = -1 EINVAL (Invalid argument)
waitpid(-1, 0xbffff908, WUNTRACED|0x8) = -1 EINVAL (Invalid argument)
waitpid(-1, 0xbffff908, WUNTRACED|0x8) = -1 EINVAL (Invalid argument)
...........etc