F GETPATH
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(Created page with "This is untested code... <source lang="c"> #if 0 - →this would be nice...: if (fcntl(fd, F_GETPATH, fname) == -1) { strerror_r(errno, es, ES...") |
Revision as of 09:30, 23 December 2013
This is untested code...
#if 0 /* this would be nice... */ if (fcntl(fd, F_GETPATH, fname) == -1) { strerror_r(errno, es, ES_LEN); fprintf(stderr, "fcntl(): %s\n", es); return -1; } #else { const char t[PATH_MAX]; struct stat a, b; snprintf(t, sizeof(t), "/proc/self/fd/%d", fd); if (readlink(t, fname, sizeof(fname)) == -1) { strerror_r(errno, es, ES_LEN); fprintf(stderr, "readlink(%s): %s\n", t, es); return -1; } if (stat(fname, &a) == -1) { strerror_r(errno, es, ES_LEN); fprintf(stderr, "stat(%s): %s\n", fname, es); return -1; } if (stat(t, &b) == -1) { strerror_r(errno, es, ES_LEN); fprintf(stderr, "stat(%s): %s\n", t, es); return -1; } if (a.st_dev != b.st_dev || a.st_ino != b.st_ino) { fprintf(stderr, "get_db(): tempoary file lost...\n"); return -1; } } #endif