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| author | Sami Kerola | 2011-06-30 21:27:42 +0200 |
|---|---|---|
| committer | Sami Kerola | 2011-06-30 22:02:10 +0200 |
| commit | ab3a34ffc9d84f8c16cff29874e46456b26bf00a (patch) | |
| tree | cd89a6fd794ea00ab71888302f9549395d3c516d /disk-utils/isosize.c | |
| parent | isosize: use long options (diff) | |
| download | kernel-qcow2-util-linux-ab3a34ffc9d84f8c16cff29874e46456b26bf00a.tar.gz kernel-qcow2-util-linux-ab3a34ffc9d84f8c16cff29874e46456b26bf00a.tar.xz kernel-qcow2-util-linux-ab3a34ffc9d84f8c16cff29874e46456b26bf00a.zip | |
isosize: check user input to be numeric
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
Diffstat (limited to 'disk-utils/isosize.c')
| -rw-r--r-- | disk-utils/isosize.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/disk-utils/isosize.c b/disk-utils/isosize.c index 547d450d0..a59d46d9e 100644 --- a/disk-utils/isosize.c +++ b/disk-utils/isosize.c @@ -28,6 +28,7 @@ #include "nls.h" #include "c.h" +#include "strutils.h" #define ISODCL(from, to) (to - from + 1) @@ -117,7 +118,7 @@ struct iso_primary_descriptor { }; static void -isosize(char *filenamep, int xflag, int divisor) { +isosize(char *filenamep, int xflag, long divisor) { int fd, nsecs, ssize; struct iso_primary_descriptor ipd; @@ -168,7 +169,7 @@ static void __attribute__((__noreturn__)) usage(FILE *out) int main(int argc, char * argv[]) { int j, ct, opt, xflag = 0; - int divisor = 0; + long divisor = 0; static const struct option longopts[] = { {"divisor", no_argument, 0, 'd'}, @@ -185,7 +186,9 @@ main(int argc, char * argv[]) { while ((opt = getopt_long(argc, argv, "d:xVh", longopts, NULL)) != -1) switch (opt) { case 'd': - divisor = atoi(optarg); + divisor = + strtol_or_err(optarg, + _("invalid divisor argument")); break; case 'x': xflag = 1; |