diff options
Diffstat (limited to 'quote.h')
| -rw-r--r-- | quote.h | 18 |
1 files changed, 16 insertions, 2 deletions
@@ -1,11 +1,13 @@ #ifndef QUOTE_H #define QUOTE_H +#include <stddef.h> #include <stdio.h> /* Help to copy the thing properly quoted for the shell safety. - * any single quote is replaced with '\'', and the whole thing - * is enclosed in a single quote pair. + * any single quote is replaced with '\'', any exclamation point + * is replaced with '\!', and the whole thing is enclosed in a + * single quote pair. * * For example, if you are passing the result to system() as an * argument: @@ -20,9 +22,20 @@ * * Note that the above examples leak memory! Remember to free result from * sq_quote() in a real application. + * + * sq_quote_buf() writes to an existing buffer of specified size; it + * will return the number of characters that would have been written + * excluding the final null regardless of the buffer size. */ extern char *sq_quote(const char *src); +extern size_t sq_quote_buf(char *dst, size_t n, const char *src); + +/* This unwraps what sq_quote() produces in place, but returns + * NULL if the input does not look like what sq_quote would have + * produced. + */ +extern char *sq_dequote(char *); extern int quote_c_style(const char *name, char *outbuf, FILE *outfp, int nodq); @@ -30,4 +43,5 @@ extern char *unquote_c_style(const char *quoted, const char **endp); extern void write_name_quoted(const char *prefix, const char *name, int quote, FILE *out); + #endif |