Andrew's git - gitweb.git/blob

   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 char *sq_quote(const char *src);
  32extern void sq_quote_print(FILE *stream, const char *src);
  33extern size_t sq_quote_buf(char *dst, size_t n, const char *src);
  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 */
  39extern char *sq_dequote(char *);
  40
  41extern int quote_c_style(const char *name, char *outbuf, FILE *outfp,
  42                         int nodq);
  43extern char *unquote_c_style(const char *quoted, const char **endp);
  44
  45extern void write_name_quoted(const char *prefix, int prefix_len,
  46                              const char *name, int quote, FILE *out);
  47
  48#endif