1#ifndef QUOTE_H 2#define QUOTE_H 3 4#include <stddef.h> 5#include <stdio.h> 6 7/* Help to copy the thing properly quoted for the shell safety. 8 * any single quote is replaced with '\'', any exclamation point 9 * is replaced with '\!', and the whole thing is enclosed in a 10 * single quote pair. 11 * 12 * For example, if you are passing the result to system() as an 13 * argument: 14 * 15 * sprintf(cmd, "foobar %s %s", sq_quote(arg0), sq_quote(arg1)) 16 * 17 * would be appropriate. If the system() is going to call ssh to 18 * run the command on the other side: 19 * 20 * sprintf(cmd, "git-diff-tree %s %s", sq_quote(arg0), sq_quote(arg1)); 21 * sprintf(rcmd, "ssh %s %s", sq_quote(host), sq_quote(cmd)); 22 * 23 * Note that the above examples leak memory! Remember to free result from 24 * sq_quote() in a real application. 25 * 26 * sq_quote_buf() writes to an existing buffer of specified size; it 27 * will return the number of characters that would have been written 28 * excluding the final null regardless of the buffer size. 29 */ 30 31extern void sq_quote_print(FILE *stream, const char *src); 32extern char *sq_quote_argv(const char** argv, int count); 33 34/* 35 * Append a string to a string buffer, with or without shell quoting. 36 * Return true if the buffer overflowed. 37 */ 38extern int add_to_string(char **ptrp, int *sizep, const char *str, int quote); 39 40/* This unwraps what sq_quote() produces in place, but returns 41 * NULL if the input does not look like what sq_quote would have 42 * produced. 43 */ 44extern char *sq_dequote(char *); 45 46extern int unquote_c_style(struct strbuf *, const char *quoted, const char **endp); 47extern size_t quote_c_style(const char *name, struct strbuf *, FILE *, int no_dq); 48 49extern void write_name_quoted(const char *name, FILE *, int terminator); 50extern void write_name_quotedpfx(const char *pfx, size_t pfxlen, 51 const char *name, FILE *, int terminator); 52 53/* quoting as a string literal for other languages */ 54extern void perl_quote_print(FILE *stream, const char *src); 55extern void python_quote_print(FILE *stream, const char *src); 56extern void tcl_quote_print(FILE *stream, const char *src); 57 58#endif