diff options
Diffstat (limited to 'src/misc/mntent.c')
| -rw-r--r-- | src/misc/mntent.c | 46 |
1 files changed, 41 insertions, 5 deletions
diff --git a/src/misc/mntent.c b/src/misc/mntent.c index d404fbe3..78bf0cd0 100644 --- a/src/misc/mntent.c +++ b/src/misc/mntent.c @@ -20,6 +20,42 @@ int endmntent(FILE *f) return 1; } +static char *unescape_ent(char *beg) +{ + char *dest = beg; + const char *src = beg; + while (*src) { + const char *val; + unsigned char cval = 0; + if (*src != '\\') { + *dest++ = *src++; + continue; + } + if (src[1] == '\\') { + ++src; + *dest++ = *src++; + continue; + } + val = src + 1; + for (int i = 0; i < 3; ++i) { + if (*val >= '0' && *val <= '7') { + cval <<= 3; + cval += *val++ - '0'; + } else { + break; + } + } + if (cval) { + *dest++ = cval; + src = val; + } else { + *dest++ = *src++; + } + } + *dest = 0; + return beg; +} + struct mntent *getmntent_r(FILE *f, struct mntent *mnt, char *linebuf, int buflen) { int n[8], use_internal = (linebuf == SENTINEL); @@ -45,7 +81,7 @@ struct mntent *getmntent_r(FILE *f, struct mntent *mnt, char *linebuf, int bufle len = strlen(linebuf); if (len > INT_MAX) continue; for (i = 0; i < sizeof n / sizeof *n; i++) n[i] = len; - sscanf(linebuf, " %n%*s%n %n%*s%n %n%*s%n %n%*s%n %d %d", + sscanf(linebuf, " %n%*[^ \t]%n %n%*[^ \t]%n %n%*[^ \t]%n %n%*[^ \t]%n %d %d", n, n+1, n+2, n+3, n+4, n+5, n+6, n+7, &mnt->mnt_freq, &mnt->mnt_passno); } while (linebuf[n[0]] == '#' || n[1]==len); @@ -55,10 +91,10 @@ struct mntent *getmntent_r(FILE *f, struct mntent *mnt, char *linebuf, int bufle linebuf[n[5]] = 0; linebuf[n[7]] = 0; - mnt->mnt_fsname = linebuf+n[0]; - mnt->mnt_dir = linebuf+n[2]; - mnt->mnt_type = linebuf+n[4]; - mnt->mnt_opts = linebuf+n[6]; + mnt->mnt_fsname = unescape_ent(linebuf+n[0]); + mnt->mnt_dir = unescape_ent(linebuf+n[2]); + mnt->mnt_type = unescape_ent(linebuf+n[4]); + mnt->mnt_opts = unescape_ent(linebuf+n[6]); return mnt; } |