#include "cache.h"
#include "quote.h"
-int quote_path_fully = 1;
-
/* Help to copy the thing properly quoted for the shell safety.
* any single quote is replaced with '\'', any exclamation point
* is replaced with '\!', and the whole thing is enclosed in a
return (c == '\'' || c == '!');
}
-void sq_quote_buf(struct strbuf *dst, const char *src)
+static void sq_quote_buf(struct strbuf *dst, const char *src)
{
char *to_free = NULL;
free(to_free);
}
-void sq_quote_print(FILE *stream, const char *src)
-{
- char c;
-
- fputc('\'', stream);
- while ((c = *src++)) {
- if (need_bs_quote(c)) {
- fputs("'\\", stream);
- fputc(c, stream);
- fputc('\'', stream);
- } else {
- fputc(c, stream);
- }
- }
- fputc('\'', stream);
-}
-
void sq_quote_argv(struct strbuf *dst, const char** argv, size_t maxlen)
{
int i;
die("Too many or long arguments");
}
}
-
-char *sq_dequote_step(char *arg, char **next)
-{
- char *dst = arg;
- char *src = arg;
- char c;
-
- if (*src != '\'')
- return NULL;
- for (;;) {
- c = *++src;
- if (!c)
- return NULL;
- if (c != '\'') {
- *dst++ = c;
- continue;
- }
- /* We stepped out of sq */
- switch (*++src) {
- case '\0':
- *dst = 0;
- if (next)
- *next = NULL;
- return arg;
- case '\\':
- c = *++src;
- if (need_bs_quote(c) && *++src == '\'') {
- *dst++ = c;
- continue;
- }
- /* Fallthrough */
- default:
- if (!next || !isspace(*src))
- return NULL;
- do {
- c = *++src;
- } while (isspace(c));
- *dst = 0;
- *next = src;
- return arg;
- }
- }
-}
-
-char *sq_dequote(char *arg)
-{
- return sq_dequote_step(arg, NULL);
-}
-
-int sq_dequote_to_argv(char *arg, const char ***argv, int *nr, int *alloc)
-{
- char *next = arg;
-
- if (!*arg)
- return 0;
- do {
- char *dequoted = sq_dequote_step(next, &next);
- if (!dequoted)
- return -1;
- ALLOC_GROW(*argv, *nr + 1, *alloc);
- (*argv)[(*nr)++] = dequoted;
- } while (next);
-
- return 0;
-}
-
-/* 1 means: quote as octal
- * 0 means: quote as octal if (quote_path_fully)
- * -1 means: never quote
- * c: quote as "\\c"
- */
-#define X8(x) x, x, x, x, x, x, x, x
-#define X16(x) X8(x), X8(x)
-static signed char const sq_lookup[256] = {
- /* 0 1 2 3 4 5 6 7 */
- /* 0x00 */ 1, 1, 1, 1, 1, 1, 1, 'a',
- /* 0x08 */ 'b', 't', 'n', 'v', 'f', 'r', 1, 1,
- /* 0x10 */ X16(1),
- /* 0x20 */ -1, -1, '"', -1, -1, -1, -1, -1,
- /* 0x28 */ X16(-1), X16(-1), X16(-1),
- /* 0x58 */ -1, -1, -1, -1,'\\', -1, -1, -1,
- /* 0x60 */ X16(-1), X8(-1),
- /* 0x78 */ -1, -1, -1, -1, -1, -1, -1, 1,
- /* 0x80 */ /* set to 0 */
-};
-
-static inline int sq_must_quote(char c)
-{
- return sq_lookup[(unsigned char)c] + quote_path_fully > 0;
-}
-
-/*
- * Returns the longest prefix not needing a quote up to maxlen if
- * positive.
- * This stops at the first \0 because it's marked as a character
- * needing an escape.
- */
-static ssize_t next_quote_pos(const char *s, ssize_t maxlen)
-{
- ssize_t len;
-
- if (maxlen < 0) {
- for (len = 0; !sq_must_quote(s[len]); len++);
- } else {
- for (len = 0; len < maxlen && !sq_must_quote(s[len]); len++);
- }
- return len;
-}
-
-/*
- * C-style name quoting.
- *
- * (1) if sb and fp are both NULL, inspect the input name and counts the
- * number of bytes that are needed to hold c_style quoted version of name,
- * counting the double quotes around it but not terminating NUL, and
- * returns it.
- * However, if name does not need c_style quoting, it returns 0.
- *
- * (2) if sb or fp are not NULL, it emits the c_style quoted version
- * of name, enclosed with double quotes if asked and needed only.
- * Return value is the same as in (1).
- */
-static size_t quote_c_style_counted(const char *name, ssize_t maxlen,
- struct strbuf *sb, FILE *fp, int no_dq)
-{
-#define EMIT(c) \
- do { \
- if (sb) strbuf_addch(sb, (c)); \
- if (fp) fputc((c), fp); \
- count++; \
- } while (0)
-
-#define EMITBUF(s, l) \
- do { \
- int __ret; \
- if (sb) strbuf_add(sb, (s), (l)); \
- if (fp) __ret = fwrite((s), (l), 1, fp); \
- count += (l); \
- } while (0)
-
- ssize_t len, count = 0;
- const char *p = name;
-
- for (;;) {
- int ch;
-
- len = next_quote_pos(p, maxlen);
- if (len == maxlen || !p[len])
- break;
-
- if (!no_dq && p == name)
- EMIT('"');
-
- EMITBUF(p, len);
- EMIT('\\');
- p += len;
- ch = (unsigned char)*p++;
- if (sq_lookup[ch] >= ' ') {
- EMIT(sq_lookup[ch]);
- } else {
- EMIT(((ch >> 6) & 03) + '0');
- EMIT(((ch >> 3) & 07) + '0');
- EMIT(((ch >> 0) & 07) + '0');
- }
- }
-
- EMITBUF(p, len);
- if (p == name) /* no ending quote needed */
- return 0;
-
- if (!no_dq)
- EMIT('"');
- return count;
-}
-
-size_t quote_c_style(const char *name, struct strbuf *sb, FILE *fp, int nodq)
-{
- return quote_c_style_counted(name, -1, sb, fp, nodq);
-}
-
-void quote_two_c_style(struct strbuf *sb, const char *prefix, const char *path, int nodq)
-{
- if (quote_c_style(prefix, NULL, NULL, 0) ||
- quote_c_style(path, NULL, NULL, 0)) {
- if (!nodq)
- strbuf_addch(sb, '"');
- quote_c_style(prefix, sb, NULL, 1);
- quote_c_style(path, sb, NULL, 1);
- if (!nodq)
- strbuf_addch(sb, '"');
- } else {
- strbuf_addstr(sb, prefix);
- strbuf_addstr(sb, path);
- }
-}
-
-void write_name_quoted(const char *name, FILE *fp, int terminator)
-{
- if (terminator) {
- quote_c_style(name, NULL, fp, 0);
- } else {
- fputs(name, fp);
- }
- fputc(terminator, fp);
-}
-
-void write_name_quotedpfx(const char *pfx, ssize_t pfxlen,
- const char *name, FILE *fp, int terminator)
-{
- int needquote = 0;
-
- if (terminator) {
- needquote = next_quote_pos(pfx, pfxlen) < pfxlen
- || name[next_quote_pos(name, -1)];
- }
- if (needquote) {
- fputc('"', fp);
- quote_c_style_counted(pfx, pfxlen, NULL, fp, 1);
- quote_c_style(name, NULL, fp, 1);
- fputc('"', fp);
- } else {
- int ret;
-
- ret = fwrite(pfx, pfxlen, 1, fp);
- fputs(name, fp);
- }
- fputc(terminator, fp);
-}
-
-/* quote path as relative to the given prefix */
-char *quote_path_relative(const char *in, int len,
- struct strbuf *out, const char *prefix)
-{
- int needquote;
-
- if (len < 0)
- len = strlen(in);
-
- /* "../" prefix itself does not need quoting, but "in" might. */
- needquote = (next_quote_pos(in, len) < len);
- strbuf_setlen(out, 0);
- strbuf_grow(out, len);
-
- if (needquote)
- strbuf_addch(out, '"');
- if (prefix) {
- int off = 0;
- while (off < len && prefix[off] && prefix[off] == in[off])
- if (prefix[off] == '/') {
- prefix += off + 1;
- in += off + 1;
- len -= off + 1;
- off = 0;
- } else
- off++;
-
- for (; *prefix; prefix++)
- if (*prefix == '/')
- strbuf_addstr(out, "../");
- }
-
- quote_c_style_counted (in, len, out, NULL, 1);
-
- if (needquote)
- strbuf_addch(out, '"');
- if (!out->len)
- strbuf_addstr(out, "./");
-
- return out->buf;
-}
-
-/*
- * C-style name unquoting.
- *
- * Quoted should point at the opening double quote.
- * + Returns 0 if it was able to unquote the string properly, and appends the
- * result in the strbuf `sb'.
- * + Returns -1 in case of error, and doesn't touch the strbuf. Though note
- * that this function will allocate memory in the strbuf, so calling
- * strbuf_release is mandatory whichever result unquote_c_style returns.
- *
- * Updates endp pointer to point at one past the ending double quote if given.
- */
-int unquote_c_style(struct strbuf *sb, const char *quoted, const char **endp)
-{
- size_t oldlen = sb->len, len;
- int ch, ac;
-
- if (*quoted++ != '"')
- return -1;
-
- for (;;) {
- len = strcspn(quoted, "\"\\");
- strbuf_add(sb, quoted, len);
- quoted += len;
-
- switch (*quoted++) {
- case '"':
- if (endp)
- *endp = quoted;
- return 0;
- case '\\':
- break;
- default:
- goto error;
- }
-
- switch ((ch = *quoted++)) {
- case 'a': ch = '\a'; break;
- case 'b': ch = '\b'; break;
- case 'f': ch = '\f'; break;
- case 'n': ch = '\n'; break;
- case 'r': ch = '\r'; break;
- case 't': ch = '\t'; break;
- case 'v': ch = '\v'; break;
-
- case '\\': case '"':
- break; /* verbatim */
-
- /* octal values with first digit over 4 overflow */
- case '0': case '1': case '2': case '3':
- ac = ((ch - '0') << 6);
- if ((ch = *quoted++) < '0' || '7' < ch)
- goto error;
- ac |= ((ch - '0') << 3);
- if ((ch = *quoted++) < '0' || '7' < ch)
- goto error;
- ac |= (ch - '0');
- ch = ac;
- break;
- default:
- goto error;
- }
- strbuf_addch(sb, ch);
- }
-
- error:
- strbuf_setlen(sb, oldlen);
- return -1;
-}
-
-/* quoting as a string literal for other languages */
-
-void perl_quote_print(FILE *stream, const char *src)
-{
- const char sq = '\'';
- const char bq = '\\';
- char c;
-
- fputc(sq, stream);
- while ((c = *src++)) {
- if (c == sq || c == bq)
- fputc(bq, stream);
- fputc(c, stream);
- }
- fputc(sq, stream);
-}
-
-void python_quote_print(FILE *stream, const char *src)
-{
- const char sq = '\'';
- const char bq = '\\';
- const char nl = '\n';
- char c;
-
- fputc(sq, stream);
- while ((c = *src++)) {
- if (c == nl) {
- fputc(bq, stream);
- fputc('n', stream);
- continue;
- }
- if (c == sq || c == bq)
- fputc(bq, stream);
- fputc(c, stream);
- }
- fputc(sq, stream);
-}
-
-void tcl_quote_print(FILE *stream, const char *src)
-{
- char c;
-
- fputc('"', stream);
- while ((c = *src++)) {
- switch (c) {
- case '[': case ']':
- case '{': case '}':
- case '$': case '\\': case '"':
- fputc('\\', stream);
- default:
- fputc(c, stream);
- break;
- case '\f':
- fputs("\\f", stream);
- break;
- case '\r':
- fputs("\\r", stream);
- break;
- case '\n':
- fputs("\\n", stream);
- break;
- case '\t':
- fputs("\\t", stream);
- break;
- case '\v':
- fputs("\\v", stream);
- break;
- }
- }
- fputc('"', stream);
-}
git.openpandora.org / pandora-kernel.git / blobdiff