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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 14:47:53 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 14:47:53 +0000 |
commit | c8bae7493d2f2910b57f13ded012e86bdcfb0532 (patch) | |
tree | 24e09d9f84dec336720cf393e156089ca2835791 /compat/fopen.c | |
parent | Initial commit. (diff) | |
download | git-c8bae7493d2f2910b57f13ded012e86bdcfb0532.tar.xz git-c8bae7493d2f2910b57f13ded012e86bdcfb0532.zip |
Adding upstream version 1:2.39.2.upstream/1%2.39.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'compat/fopen.c')
-rw-r--r-- | compat/fopen.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/compat/fopen.c b/compat/fopen.c new file mode 100644 index 0000000..107b3e8 --- /dev/null +++ b/compat/fopen.c @@ -0,0 +1,37 @@ +/* + * The order of the following two lines is important. + * + * SUPPRESS_FOPEN_REDEFINITION is defined before including git-compat-util.h + * to avoid the redefinition of fopen within git-compat-util.h. This is + * necessary since fopen is a macro on some platforms which may be set + * based on compiler options. For example, on AIX fopen is set to fopen64 + * when _LARGE_FILES is defined. The previous technique of merely undefining + * fopen after including git-compat-util.h is inadequate in this case. + */ +#define SUPPRESS_FOPEN_REDEFINITION +#include "../git-compat-util.h" + +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; +} |