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Fix undefined behaviour and save some bytes as suggested by Manuel Novoa III

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This commit is contained in:
Glenn L McGrath 2002-12-10 03:16:37 +00:00
parent 38386d7fed
commit 7b4e89b9e3
1 changed files with 10 additions and 12 deletions
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20
coreutils/realpath.c
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@ -21,24 +21,22 @@
int realpath_main(int argc, char **argv) int realpath_main(int argc, char **argv)
{ {
char *resolved_path; RESERVE_CONFIG_BUFFER(resolved_path, PATH_MAX);
int count;
if (argc == 1) { if (--argc == 0) {
show_usage(); show_usage();
} }
resolved_path = malloc(PATH_MAX); do {
argv++;
for (count = 1; count < argc; count++) { if (realpath(*argv, resolved_path) != NULL) {
resolved_path = realpath(argv[count], resolved_path);
if (resolved_path) {
puts(resolved_path); puts(resolved_path);
} else { } else {
perror_msg("%s", argv[count]); perror_msg("%s", *argv);
} }
} } while (--argc);
free(resolved_path);
RELEASE_CONFIG_BUFFER(resolved_path);
return(EXIT_SUCCESS); return(EXIT_SUCCESS);
} }