Fix a shedload of warnings, some memory leaks and clean up WARNS
and lint. This is now WARNS=9, std=c99 clean on i386.
This commit is contained in:
Mark Murray
parent
3dfc942fa1
commit
b7dbd3e95e
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=114579
100
bin/df/df.c
100
bin/df/df.c
@ -57,6 +57,7 @@ __FBSDID("$FreeBSD$");
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#include <ufs/ufs/ufsmount.h>
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#include <err.h>
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#include <math.h>
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#include <inttypes.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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@ -88,37 +89,51 @@ __FBSDID("$FreeBSD$");
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/* Maximum widths of various fields. */
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struct maxwidths {
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int mntfrom;
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int total;
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int used;
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int avail;
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int iused;
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int ifree;
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size_t mntfrom;
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size_t total;
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size_t used;
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size_t avail;
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size_t iused;
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size_t ifree;
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};
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unsigned long long vals_si [] = {1, KILO_SI_SZ, MEGA_SI_SZ, GIGA_SI_SZ, TERA_SI_SZ, PETA_SI_SZ};
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unsigned long long vals_base2[] = {1, KILO_2_SZ, MEGA_2_SZ, GIGA_2_SZ, TERA_2_SZ, PETA_2_SZ};
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unsigned long long *valp;
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static uintmax_t vals_si [] = {
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1,
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KILO_SI_SZ,
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MEGA_SI_SZ,
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GIGA_SI_SZ,
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TERA_SI_SZ,
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PETA_SI_SZ
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};
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static uintmax_t vals_base2[] = {
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1,
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KILO_2_SZ,
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MEGA_2_SZ,
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GIGA_2_SZ,
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TERA_2_SZ,
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PETA_2_SZ
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};
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static uintmax_t *valp;
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typedef enum { NONE, KILO, MEGA, GIGA, TERA, PETA, UNIT_MAX } unit_t;
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unit_t unitp [] = { NONE, KILO, MEGA, GIGA, TERA, PETA };
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static unit_t unitp [] = { NONE, KILO, MEGA, GIGA, TERA, PETA };
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static char *getmntpt(char *);
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static int longwidth(long);
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static char *getmntpt(const char *);
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static size_t longwidth(long);
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static char *makenetvfslist(void);
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static void prthuman(struct statfs *, long);
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static void prthuman(const struct statfs *, long);
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static void prthumanval(double);
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static void prtstat(struct statfs *, struct maxwidths *);
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static long regetmntinfo(struct statfs **, long, const char **);
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static unit_t unit_adjust(double *);
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static void update_maxwidths(struct maxwidths *, struct statfs *);
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static void update_maxwidths(struct maxwidths *, const struct statfs *);
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static void usage(void);
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static __inline int
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imax(int a, int b)
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static __inline u_int
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max(u_int a, u_int b)
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{
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return (MAX(a, b));
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return (a > b ? a : b);
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}
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static int aflag = 0, hflag, iflag, nflag;
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@ -275,7 +290,7 @@ main(int argc, char *argv[])
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}
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static char *
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getmntpt(char *name)
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getmntpt(const char *name)
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{
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long mntsize, i;
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struct statfs *mntbuf;
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@ -326,13 +341,13 @@ unit_adjust(double *val)
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{
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double abval;
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unit_t unit;
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unsigned int unit_sz;
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int unit_sz;
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abval = fabs(*val);
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unit_sz = abval ? ilogb(abval) / 10 : 0;
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if (unit_sz >= UNIT_MAX) {
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if (unit_sz >= (int)UNIT_MAX) {
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unit = NONE;
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} else {
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unit = unitp[unit_sz];
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@ -343,7 +358,7 @@ unit_adjust(double *val)
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}
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static void
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prthuman(struct statfs *sfsp, long used)
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prthuman(const struct statfs *sfsp, long used)
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{
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prthumanval((double)sfsp->f_blocks * (double)sfsp->f_bsize);
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@ -381,28 +396,28 @@ static void
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prtstat(struct statfs *sfsp, struct maxwidths *mwp)
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{
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static long blocksize;
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static int headerlen, timesthrough;
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static int headerlen, timesthrough = 0;
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static const char *header;
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long used, availblks, inodes;
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if (++timesthrough == 1) {
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mwp->mntfrom = imax(mwp->mntfrom, strlen("Filesystem"));
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mwp->mntfrom = max(mwp->mntfrom, strlen("Filesystem"));
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if (hflag) {
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header = " Size";
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mwp->total = mwp->used = mwp->avail = strlen(header);
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} else {
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header = getbsize(&headerlen, &blocksize);
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mwp->total = imax(mwp->total, headerlen);
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mwp->total = max(mwp->total, (u_int)headerlen);
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}
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mwp->used = imax(mwp->used, strlen("Used"));
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mwp->avail = imax(mwp->avail, strlen("Avail"));
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mwp->used = max(mwp->used, strlen("Used"));
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mwp->avail = max(mwp->avail, strlen("Avail"));
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(void)printf("%-*s %-*s %*s %*s Capacity", mwp->mntfrom,
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"Filesystem", mwp->total, header, mwp->used, "Used",
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mwp->avail, "Avail");
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if (iflag) {
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mwp->iused = imax(mwp->iused, strlen(" iused"));
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mwp->ifree = imax(mwp->ifree, strlen("ifree"));
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mwp->iused = max(mwp->iused, strlen(" iused"));
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mwp->ifree = max(mwp->ifree, strlen("ifree"));
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(void)printf(" %*s %*s %%iused", mwp->iused - 2,
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"iused", mwp->ifree, "ifree");
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}
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@ -438,31 +453,31 @@ prtstat(struct statfs *sfsp, struct maxwidths *mwp)
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* the file system specified by `sfsp'.
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*/
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static void
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update_maxwidths(struct maxwidths *mwp, struct statfs *sfsp)
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update_maxwidths(struct maxwidths *mwp, const struct statfs *sfsp)
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{
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static long blocksize;
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static long blocksize = 0;
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int dummy;
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if (blocksize == 0)
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getbsize(&dummy, &blocksize);
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mwp->mntfrom = imax(mwp->mntfrom, strlen(sfsp->f_mntfromname));
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mwp->total = imax(mwp->total, longwidth(fsbtoblk(sfsp->f_blocks,
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mwp->mntfrom = max(mwp->mntfrom, strlen(sfsp->f_mntfromname));
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mwp->total = max(mwp->total, longwidth(fsbtoblk(sfsp->f_blocks,
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sfsp->f_bsize, blocksize)));
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mwp->used = imax(mwp->used, longwidth(fsbtoblk(sfsp->f_blocks -
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mwp->used = max(mwp->used, longwidth(fsbtoblk(sfsp->f_blocks -
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sfsp->f_bfree, sfsp->f_bsize, blocksize)));
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mwp->avail = imax(mwp->avail, longwidth(fsbtoblk(sfsp->f_bavail,
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mwp->avail = max(mwp->avail, longwidth(fsbtoblk(sfsp->f_bavail,
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sfsp->f_bsize, blocksize)));
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mwp->iused = imax(mwp->iused, longwidth(sfsp->f_files -
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mwp->iused = max(mwp->iused, longwidth(sfsp->f_files -
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sfsp->f_ffree));
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mwp->ifree = imax(mwp->ifree, longwidth(sfsp->f_ffree));
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mwp->ifree = max(mwp->ifree, longwidth(sfsp->f_ffree));
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}
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/* Return the width in characters of the specified long. */
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static int
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static size_t
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longwidth(long val)
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{
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int len;
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size_t len;
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len = 0;
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/* Negative or zero values require one extra digit. */
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@ -491,7 +506,7 @@ static char *
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makenetvfslist(void)
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{
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char *str, *strptr, **listptr;
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struct xvfsconf *xvfsp;
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struct xvfsconf *xvfsp, *keep_xvfsp;
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size_t buflen;
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int cnt, i, maxvfsconf;
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@ -504,14 +519,17 @@ makenetvfslist(void)
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warnx("malloc failed");
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return (NULL);
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}
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keep_xvfsp = xvfsp;
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if (sysctlbyname("vfs.conflist", xvfsp, &buflen, NULL, 0) < 0) {
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warn("sysctl(vfs.conflist)");
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free(keep_xvfsp);
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return (NULL);
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}
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maxvfsconf = buflen / sizeof(struct xvfsconf);
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if ((listptr = malloc(sizeof(char*) * maxvfsconf)) == NULL) {
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warnx("malloc failed");
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free(keep_xvfsp);
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return (NULL);
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}
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@ -520,6 +538,8 @@ makenetvfslist(void)
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listptr[cnt++] = strdup(xvfsp->vfc_name);
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if (listptr[cnt-1] == NULL) {
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warnx("malloc failed");
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free(listptr);
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free(keep_xvfsp);
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return (NULL);
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}
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}
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@ -531,6 +551,7 @@ makenetvfslist(void)
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if (cnt > 0)
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warnx("malloc failed");
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free(listptr);
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free(keep_xvfsp);
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return (NULL);
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}
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@ -543,6 +564,7 @@ makenetvfslist(void)
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}
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*(--strptr) = NULL;
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free(keep_xvfsp);
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free(listptr);
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return (str);
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}
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