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author | Rich Felker <dalias@aerifal.cx> | 2012-09-07 00:48:25 -0400 |
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committer | Rich Felker <dalias@aerifal.cx> | 2012-09-07 00:48:25 -0400 |
commit | b9bb8f67bbac9bab5314fb00974ad469476e936e (patch) | |
tree | 89fc3a733b4cd9a2346c5b77d8953b4f7aa9dd22 /src/misc/mntent.c | |
parent | 780aede41913528781bbc8ff0d0e27505595f7c0 (diff) | |
download | musl-b9bb8f67bbac9bab5314fb00974ad469476e936e.tar.gz musl-b9bb8f67bbac9bab5314fb00974ad469476e936e.tar.bz2 musl-b9bb8f67bbac9bab5314fb00974ad469476e936e.tar.xz musl-b9bb8f67bbac9bab5314fb00974ad469476e936e.zip |
cleanup src/linux and src/misc trees, etc.
previously, it was pretty much random which one of these trees a given
function appeared in. they have now been organized into:
src/linux: non-POSIX linux syscalls (possibly shard with other nixen)
src/legacy: various obsolete/legacy functions, mostly wrappers
src/misc: still mostly uncategorized; some misc POSIX, some nonstd
src/crypt: crypt hash functions
further cleanup will be done later.
Diffstat (limited to 'src/misc/mntent.c')
-rw-r--r-- | src/misc/mntent.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/src/misc/mntent.c b/src/misc/mntent.c new file mode 100644 index 00000000..3eafba5e --- /dev/null +++ b/src/misc/mntent.c @@ -0,0 +1,68 @@ +#include <stdio.h> +#include <string.h> +#include <mntent.h> +#include <errno.h> + +FILE *setmntent(const char *name, const char *mode) +{ + return fopen(name, mode); +} + +int endmntent(FILE *f) +{ + fclose(f); + return 1; +} + +struct mntent *getmntent_r(FILE *f, struct mntent *mnt, char *linebuf, int buflen) +{ + int cnt, n[8]; + + mnt->mnt_freq = 0; + mnt->mnt_passno = 0; + + do { + fgets(linebuf, buflen, f); + if (feof(f) || ferror(f)) return 0; + if (!strchr(linebuf, '\n')) { + fscanf(f, "%*[^\n]%*[\n]"); + errno = ERANGE; + return 0; + } + cnt = sscanf(linebuf, " %n%*s%n %n%*s%n %n%*s%n %n%*s%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 (cnt < 2 || linebuf[n[0]] == '#'); + + linebuf[n[1]] = 0; + linebuf[n[3]] = 0; + 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]; + + return mnt; +} + +struct mntent *getmntent(FILE *f) +{ + static char linebuf[256]; + static struct mntent mnt; + return getmntent_r(f, &mnt, linebuf, sizeof linebuf); +} + +int addmntent(FILE *f, const struct mntent *mnt) +{ + if (fseek(f, 0, SEEK_END)) return 1; + return fprintf(f, "%s\t%s\t%s\t%s\t%d\t%d\n", + mnt->mnt_fsname, mnt->mnt_dir, mnt->mnt_type, mnt->mnt_opts, + mnt->mnt_freq, mnt->mnt_passno) < 0; +} + +char *hasmntopt(const struct mntent *mnt, const char *opt) +{ + return strstr(mnt->mnt_opts, opt); +} |