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mntent: fields are delimited only by tabs or spaces, not general whitespace 

this matters because the kernel-provided mtab only escapes tabs,
spaces, newlines, and backslashes. it leaves carriage returns, form
feeds, and vertical tabs literal.
This commit is contained in:
Rich Felker 2023-11-16 12:55:21 -05:00
parent ee1d39bc15
commit f314e13392
1 changed files with 1 additions and 1 deletions
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2
src/misc/mntent.c
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@ -81,7 +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);