77d604c309
Create function to sq_quote into a buffer Handle !'s for csh-based shells Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
34 lines
1.1 KiB
C
34 lines
1.1 KiB
C
#ifndef QUOTE_H
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#define QUOTE_H
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#include <stddef.h>
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/* Help to copy the thing properly quoted for the shell safety.
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* any single quote is replaced with '\'', any exclamation point
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* is replaced with '\!', and the whole thing is enclosed in a
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* single quote pair.
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*
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* For example, if you are passing the result to system() as an
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* argument:
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*
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* sprintf(cmd, "foobar %s %s", sq_quote(arg0), sq_quote(arg1))
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*
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* would be appropriate. If the system() is going to call ssh to
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* run the command on the other side:
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*
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* sprintf(cmd, "git-diff-tree %s %s", sq_quote(arg0), sq_quote(arg1));
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* sprintf(rcmd, "ssh %s %s", sq_quote(host), sq_quote(cmd));
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*
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* Note that the above examples leak memory! Remember to free result from
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* sq_quote() in a real application.
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*
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* sq_quote_buf() writes to an existing buffer of specified size; it
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* will return the number of characters that would have been written
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* excluding the final null regardless of the buffer size.
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*/
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char *sq_quote(const char *src);
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size_t sq_quote_buf(char *dst, size_t n, const char *src);
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#endif
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