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authorBrandon Casey <casey@nrlssc.navy.mil>2008-02-09 02:32:47 (GMT)
committerJunio C Hamano <gitster@pobox.com>2008-02-12 02:25:10 (GMT)
commitcba22528fa897728ebbffb95c05037ec9a20ea7c (patch)
tree2f1631cd5de7827b86847d98d9850e58d1d300c7 /compat/fopen.c
parent40aab8119f38c622f58d8e612e7a632eb1f3ded2 (diff)
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Add compat/fopen.c which returns NULL on attempt to open directory
Some systems do not fail as expected when fread et al. are called on a directory stream. Replace fopen on such systems which will fail when the supplied path is a directory. Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'compat/fopen.c')
-rw-r--r--compat/fopen.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/compat/fopen.c b/compat/fopen.c
new file mode 100644
index 0000000..ccb9e89
--- /dev/null
+++ b/compat/fopen.c
@@ -0,0 +1,26 @@
+#include "../git-compat-util.h"
+#undef fopen
+FILE *git_fopen(const char *path, const char *mode)
+{
+ FILE *fp;
+ struct stat st;
+
+ if (mode[0] == 'w' || mode[0] == 'a')
+ return fopen(path, mode);
+
+ if (!(fp = fopen(path, mode)))
+ return NULL;
+
+ if (fstat(fileno(fp), &st)) {
+ fclose(fp);
+ return NULL;
+ }
+
+ if (S_ISDIR(st.st_mode)) {
+ fclose(fp);
+ errno = EISDIR;
+ return NULL;
+ }
+
+ return fp;
+}