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fdf729661a
When we are initializing a .git directory, we may call probe_utf8_pathname_composition to detect utf8 mangling. We pass in a path buffer for it to use, and it blindly strcpy()s into it, not knowing whether the buffer is large enough to hold the result or not. In practice this isn't a big deal, because the buffer we pass in already contains "$GIT_DIR/config", and we append only a few extra bytes to it. But we can easily do the right thing just by calling git_path_buf ourselves. Technically this results in a different pathname (before we appended our utf8 characters to the "config" path, and now they get their own files in $GIT_DIR), but that should not matter for our purposes. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
#ifndef PRECOMPOSE_UNICODE_H
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <dirent.h>
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#include <iconv.h>
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typedef struct dirent_prec_psx {
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ino_t d_ino; /* Posix */
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size_t max_name_len; /* See below */
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unsigned char d_type; /* available on all systems git runs on */
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/*
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* See http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/dirent.h.html
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* NAME_MAX + 1 should be enough, but some systems have
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* NAME_MAX=255 and strlen(d_name) may return 508 or 510
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* Solution: allocate more when needed, see precompose_utf8_readdir()
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*/
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char d_name[NAME_MAX+1];
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} dirent_prec_psx;
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typedef struct {
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iconv_t ic_precompose;
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DIR *dirp;
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struct dirent_prec_psx *dirent_nfc;
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} PREC_DIR;
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void precompose_argv(int argc, const char **argv);
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void probe_utf8_pathname_composition(void);
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PREC_DIR *precompose_utf8_opendir(const char *dirname);
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struct dirent_prec_psx *precompose_utf8_readdir(PREC_DIR *dirp);
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int precompose_utf8_closedir(PREC_DIR *dirp);
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#ifndef PRECOMPOSE_UNICODE_C
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#define dirent dirent_prec_psx
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#define opendir(n) precompose_utf8_opendir(n)
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#define readdir(d) precompose_utf8_readdir(d)
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#define closedir(d) precompose_utf8_closedir(d)
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#define DIR PREC_DIR
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#endif /* PRECOMPOSE_UNICODE_C */
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#define PRECOMPOSE_UNICODE_H
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#endif /* PRECOMPOSE_UNICODE_H */
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