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1 | #ifndef QUOTE_H | |
2 | #define QUOTE_H | |
3 | ||
4 | struct strbuf; | |
5 | ||
6 | /* Help to copy the thing properly quoted for the shell safety. | |
7 | * any single quote is replaced with '\'', any exclamation point | |
8 | * is replaced with '\!', and the whole thing is enclosed in a | |
9 | * single quote pair. | |
10 | * | |
11 | * For example, if you are passing the result to system() as an | |
12 | * argument: | |
13 | * | |
14 | * sprintf(cmd, "foobar %s %s", sq_quote(arg0), sq_quote(arg1)) | |
15 | * | |
16 | * would be appropriate. If the system() is going to call ssh to | |
17 | * run the command on the other side: | |
18 | * | |
19 | * sprintf(cmd, "git-diff-tree %s %s", sq_quote(arg0), sq_quote(arg1)); | |
20 | * sprintf(rcmd, "ssh %s %s", sq_quote(host), sq_quote(cmd)); | |
21 | * | |
22 | * Note that the above examples leak memory! Remember to free result from | |
23 | * sq_quote() in a real application. | |
24 | * | |
25 | * sq_quote_buf() writes to an existing buffer of specified size; it | |
26 | * will return the number of characters that would have been written | |
27 | * excluding the final null regardless of the buffer size. | |
28 | */ | |
29 | ||
30 | extern void sq_quote_print(FILE *stream, const char *src); | |
31 | ||
32 | extern void sq_quote_buf(struct strbuf *, const char *src); | |
33 | extern void sq_quote_argv(struct strbuf *, const char **argv, size_t maxlen); | |
34 | ||
35 | /* This unwraps what sq_quote() produces in place, but returns | |
36 | * NULL if the input does not look like what sq_quote would have | |
37 | * produced. | |
38 | */ | |
39 | extern char *sq_dequote(char *); | |
40 | ||
41 | /* | |
42 | * Same as the above, but can be used to unwrap many arguments in the | |
43 | * same string separated by space. "next" is changed to point to the | |
44 | * next argument that should be passed as first parameter. When there | |
45 | * is no more argument to be dequoted, "next" is updated to point to NULL. | |
46 | */ | |
47 | extern int sq_dequote_to_argv(char *arg, const char ***argv, int *nr, int *alloc); | |
48 | ||
49 | extern int unquote_c_style(struct strbuf *, const char *quoted, const char **endp); | |
50 | extern size_t quote_c_style(const char *name, struct strbuf *, FILE *, int no_dq); | |
51 | extern void quote_two_c_style(struct strbuf *, const char *, const char *, int); | |
52 | ||
53 | extern void write_name_quoted(const char *name, FILE *, int terminator); | |
54 | extern void write_name_quotedpfx(const char *pfx, size_t pfxlen, | |
55 | const char *name, FILE *, int terminator); | |
56 | extern void write_name_quoted_relative(const char *name, size_t len, | |
57 | const char *prefix, size_t prefix_len, | |
58 | FILE *fp, int terminator); | |
59 | ||
60 | /* quote path as relative to the given prefix */ | |
61 | extern char *quote_path_relative(const char *in, int len, | |
62 | struct strbuf *out, const char *prefix); | |
63 | ||
64 | /* quoting as a string literal for other languages */ | |
65 | extern void perl_quote_print(FILE *stream, const char *src); | |
66 | extern void python_quote_print(FILE *stream, const char *src); | |
67 | extern void tcl_quote_print(FILE *stream, const char *src); | |
68 | ||
69 | #endif |