git/compat/fopen.c

38 строки
938 B
C

/*
* 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;
}