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Old April 12th, 2010, 13:51
killwin killwin is offline
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Default $HOME or ~ in C
Hello,

how to open file like "/home/toto/file.alx" with "$HOME/file.alx" or "~/file.alx" in C language ?

Attention i don't want to part arguments into main !

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Old April 12th, 2010, 13:56
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SirDice SirDice is offline
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Not all shells understand ~ is $HOME.
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Old April 12th, 2010, 13:59
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you need to read environment variables HOME

Code:
extern char **environ;
this will be pointer to (1D aka vertex) array of environment variables
It will be like HOME=/home/user\0 (C string)


INFO from Advanced Programming in the Unix Environment 2nd edition
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Old April 12th, 2010, 14:32
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Or call libc's getenv(3). Simpler than parsing yourself.
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Old April 12th, 2010, 15:20
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Solved, thanks.
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