/**
* Scans the environment for option overrides.
*
* @param pThis Pointer to the instance data.
* @param papszEnv The environment array.
* @param pszPrefix The variable prefix.
*
* @returns 0 on success, -1 and err*() on failure.
*/
int kBuildProtectionScanEnv(PKBUILDPROTECTION pThis, char **papszEnv, const char *pszPrefix)
{
unsigned i;
const size_t cchPrefix = strlen(pszPrefix);
for (i = 0; papszEnv[i]; i++)
{
const char *pszVar = papszEnv[i];
if (!strncmp(pszVar, pszPrefix, cchPrefix))
{
pszVar += cchPrefix;
if (!strncmp(pszVar, "PROTECTION_DEPTH=", sizeof("PROTECTION_DEPTH=") - 1))
{
const char *pszVal = pszVar + sizeof("PROTECTION_DEPTH=") - 1;
if (kBuildProtectionSetDepth(pThis, pszVal))
return -1;
}
else if (!strncmp(pszVar, "DISABLE_PROTECTION=", sizeof("DISABLE_PROTECTION=") - 1))
pThis->afTypes[KBUILDPROTECTIONTYPE_RECURSIVE] &= ~1U;
else if (!strncmp(pszVar, "ENABLE_PROTECTION=", sizeof("ENABLE_PROTECTION=") - 1))
pThis->afTypes[KBUILDPROTECTIONTYPE_RECURSIVE] |= 3;
else if (!strncmp(pszVar, "DISABLE_FULL_PROTECTION=", sizeof("DISABLE_FULL_PROTECTION=") - 1))
pThis->afTypes[KBUILDPROTECTIONTYPE_FULL] &= ~1U;
else if (!strncmp(pszVar, "ENABLE_FULL_PROTECTION=", sizeof("ENABLE_FULL_PROTECTION=") - 1))
pThis->afTypes[KBUILDPROTECTIONTYPE_FULL] |= 3;
}
}
return 0;
}
/*
* rm --
* This rm is different from historic rm's, but is expected to match
* POSIX 1003.2 behavior. The most visible difference is that -f
* has two specific effects now, ignore non-existent files and force
* file removal.
*/
int
kmk_builtin_rm(int argc, char *argv[], char **envp)
{
int ch, rflag;
/* reinitialize globals */
argv0 = argv[0];
dflag = eval = fflag = iflag = Pflag = vflag = Wflag = stdin_ok = 0;
uid = 0;
kBuildProtectionInit(&g_ProtData);
/* kmk: reset getopt and set program name. */
g_progname = argv[0];
opterr = 1;
optarg = NULL;
optopt = 0;
optind = 0; /* init */
Pflag = rflag = 0;
while ((ch = getopt_long(argc, argv, "dfiPRvW", long_options, NULL)) != -1)
switch(ch) {
case 'd':
dflag = 1;
break;
case 'f':
fflag = 1;
iflag = 0;
break;
case 'i':
fflag = 0;
iflag = 1;
break;
case 'P':
Pflag = 1;
break;
case 'R':
#if 0
case 'r': /* Compatibility. */
#endif
rflag = 1;
break;
case 'v':
vflag = 1;
break;
#ifdef FTS_WHITEOUT
case 'W':
Wflag = 1;
break;
#endif
case 261:
kBuildProtectionTerm(&g_ProtData);
usage(stdout);
return 0;
case 262:
kBuildProtectionTerm(&g_ProtData);
return kbuild_version(argv[0]);
case 263:
kBuildProtectionDisable(&g_ProtData, KBUILDPROTECTIONTYPE_RECURSIVE);
break;
case 264:
kBuildProtectionEnable(&g_ProtData, KBUILDPROTECTIONTYPE_RECURSIVE);
break;
case 265:
kBuildProtectionEnable(&g_ProtData, KBUILDPROTECTIONTYPE_FULL);
break;
case 266:
kBuildProtectionDisable(&g_ProtData, KBUILDPROTECTIONTYPE_FULL);
break;
case 267:
if (kBuildProtectionSetDepth(&g_ProtData, optarg)) {
kBuildProtectionTerm(&g_ProtData);
return 1;
}
break;
case '?':
default:
kBuildProtectionTerm(&g_ProtData);
return usage(stderr);
}
argc -= optind;
argv += optind;
if (argc < 1) {
kBuildProtectionTerm(&g_ProtData);
if (fflag)
return (0);
return usage(stderr);
}
if (!kBuildProtectionScanEnv(&g_ProtData, envp, "KMK_RM_")) {
checkdot(argv);
uid = geteuid();
if (*argv) {
stdin_ok = isatty(STDIN_FILENO);
if (rflag)
eval |= rm_tree(argv);
else
eval |= rm_file(argv);
}
} else {
eval = 1;
}
kBuildProtectionTerm(&g_ProtData);
return eval;
}
