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authorMichal Rokos <michal.rokos@nextsoft.cz>2008-03-05 15:46:13 (GMT)
committerJunio C Hamano <gitster@pobox.com>2008-03-05 21:12:07 (GMT)
commitc4582f93a263bea534288e7f7ad8937405964cd4 (patch)
tree0347f5c0606376d6ebd8e35dd4636139711fd8ac /git-compat-util.h
parentb9217642ef2db34e2cbeaef8d4439b07a03027cd (diff)
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Add compat/snprintf.c for systems that return bogus
Some systems (namely HPUX and Windows) return -1 when maxsize in snprintf() and in vsnprintf() is reached. So replace snprintf() and vsnprintf() functions with our own ones that return correct value upon overflow. [jc: verified that review comments by J6t have been incorporated, and tightened the check to verify the resulting buffer contents, suggested by Wayne Davison] Signed-off-by: Michal Rokos <michal.rokos@nextsoft.cz> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'git-compat-util.h')
-rw-r--r--git-compat-util.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/git-compat-util.h b/git-compat-util.h
index 2a40703..9d04fae 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -209,6 +209,15 @@ void *gitmemmem(const void *haystack, size_t haystacklen,
extern FILE *git_fopen(const char*, const char*);
#endif
+#ifdef SNPRINTF_RETURNS_BOGUS
+#define snprintf git_snprintf
+extern int git_snprintf(char *str, size_t maxsize,
+ const char *format, ...);
+#define vsnprintf git_vsnprintf
+extern int git_vsnprintf(char *str, size_t maxsize,
+ const char *format, va_list ap);
+#endif
+
#ifdef __GLIBC_PREREQ
#if __GLIBC_PREREQ(2, 1)
#define HAVE_STRCHRNUL