| Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 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)); |
| Ingo Molnar | 148be2c | 2009-04-27 08:02:14 +0200 | [diff] [blame^] | 21 | * sprintf(rcmd, "ssh %s %s", sq_util/quote.host), sq_quote(cmd)); |
| Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 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 | |
| 31 | extern void sq_quote_print(FILE *stream, const char *src); |
| 32 | |
| 33 | extern void sq_quote_buf(struct strbuf *, const char *src); |
| 34 | extern void sq_quote_argv(struct strbuf *, const char **argv, size_t maxlen); |
| 35 | |
| 36 | /* This unwraps what sq_quote() produces in place, but returns |
| 37 | * NULL if the input does not look like what sq_quote would have |
| 38 | * produced. |
| 39 | */ |
| 40 | extern char *sq_dequote(char *); |
| 41 | |
| 42 | /* |
| 43 | * Same as the above, but can be used to unwrap many arguments in the |
| 44 | * same string separated by space. "next" is changed to point to the |
| 45 | * next argument that should be passed as first parameter. When there |
| 46 | * is no more argument to be dequoted, "next" is updated to point to NULL. |
| 47 | */ |
| 48 | extern char *sq_dequote_step(char *arg, char **next); |
| 49 | extern int sq_dequote_to_argv(char *arg, const char ***argv, int *nr, int *alloc); |
| 50 | |
| 51 | extern int unquote_c_style(struct strbuf *, const char *quoted, const char **endp); |
| 52 | extern size_t quote_c_style(const char *name, struct strbuf *, FILE *, int no_dq); |
| 53 | extern void quote_two_c_style(struct strbuf *, const char *, const char *, int); |
| 54 | |
| 55 | extern void write_name_quoted(const char *name, FILE *, int terminator); |
| 56 | extern void write_name_quotedpfx(const char *pfx, size_t pfxlen, |
| 57 | const char *name, FILE *, int terminator); |
| 58 | |
| 59 | /* quote path as relative to the given prefix */ |
| 60 | char *quote_path_relative(const char *in, int len, |
| 61 | struct strbuf *out, const char *prefix); |
| 62 | |
| 63 | /* quoting as a string literal for other languages */ |
| 64 | extern void perl_quote_print(FILE *stream, const char *src); |
| 65 | extern void python_quote_print(FILE *stream, const char *src); |
| 66 | extern void tcl_quote_print(FILE *stream, const char *src); |
| 67 | |
| 68 | #endif |