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47 lines
1.5 KiB
47 lines
1.5 KiB
#ifndef QUOTE_H |
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#define QUOTE_H |
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#include <stddef.h> |
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#include <stdio.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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extern char *sq_quote(const char *src); |
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extern size_t sq_quote_buf(char *dst, size_t n, const char *src); |
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/* This unwraps what sq_quote() produces in place, but returns |
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* NULL if the input does not look like what sq_quote would have |
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* produced. |
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*/ |
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extern char *sq_dequote(char *); |
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extern int quote_c_style(const char *name, char *outbuf, FILE *outfp, |
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int nodq); |
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extern char *unquote_c_style(const char *quoted, const char **endp); |
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extern void write_name_quoted(const char *prefix, int prefix_len, |
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const char *name, int quote, FILE *out); |
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#endif
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