scp issue

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Old 08-19-2009
scp issue

after scp from a mac to a unix server and back a set of .wav files (originally generated by ppt with 'record narration') become corrupted somehow, and when opened the sound files has become noise. non-.wav files in the same folder are not affected.

strangely, the problem only seems to arise when the .wav files lack their extension. is there a reason that leaving out the extension can corrupt the files when using scp?

i need to back-up a database i want to know there is any way to avoid this problem short of adding .wav to all wav-files (which creates a different set of problem because ppt doesn't find them anymore).

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SIGRETURN(2)						      BSD System Calls Manual						      SIGRETURN(2)

sigreturn -- return from signal LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <signal.h> int sigreturn(const ucontext_t *scp); DESCRIPTION
The sigreturn() system call allows users to atomically unmask, switch stacks, and return from a signal context. The thread's signal mask and stack status are restored from the context structure pointed to by scp. The system call does not return; the users stack pointer, frame pointer, argument pointer, and processor status longword are restored from the context. Execution resumes at the specified pc. This system call is used by the trampoline code and longjmp(3) when returning from a signal to the previously executing program. RETURN VALUES
If successful, the system call does not return. Otherwise, a value of -1 is returned and errno is set to indicate the error. ERRORS
The sigreturn() system call will fail and the thread context will remain unchanged if one of the following occurs. [EFAULT] The scp argument points to memory that is not a valid part of the process address space. [EINVAL] The process status longword is invalid or would improperly raise the privilege level of the process. SEE ALSO
sigaction(2), setjmp(3), ucontext(3) HISTORY
The sigreturn() system call appeared in 4.3BSD. BSD
September 6, 2013 BSD

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