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(construct_command): handle argc == 0 for generality

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@6389 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Assar Westerlund
1999-07-03 02:20:50 +00:00
parent 6c9520273d
commit d0378afc05
1 changed files with 3 additions and 1 deletions
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4
appl/rsh/rsh.c
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@@ -476,6 +476,7 @@ construct_command (char **res, int argc, char **argv)
for (i = 0; i < argc; ++i) for (i = 0; i < argc; ++i)
len += strlen(argv[i]) + 1; len += strlen(argv[i]) + 1;
len = max (1, len);
tmp = malloc (len); tmp = malloc (len);
if (tmp == NULL) if (tmp == NULL)
errx (1, "malloc %u failed", len); errx (1, "malloc %u failed", len);
@@ -485,7 +486,8 @@ construct_command (char **res, int argc, char **argv)
strcat (tmp, argv[i]); strcat (tmp, argv[i]);
strcat (tmp, " "); strcat (tmp, " ");
} }
strcat (tmp, argv[argc-1]); if (argc > 0)
strcat (tmp, argv[argc-1]);
*res = tmp; *res = tmp;
return len; return len;
} }