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ps: reduce #ifdef forest

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This commit is contained in:
Denis Vlasenko 2006-11-01 09:14:52 +00:00
parent 966ec7c067
commit d3ada32285
1 changed files with 13 additions and 25 deletions
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38
procps/ps.c
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@ -13,31 +13,19 @@ int ps_main(int argc, char **argv)
{ {
procps_status_t * p; procps_status_t * p;
int i, len; int i, len;
SKIP_SELINUX(const) int use_selinux = 0;
#if ENABLE_SELINUX USE_SELINUX(security_context_t sid = NULL;)
int use_selinux = 0; #if !ENABLE_FEATURE_PS_WIDE
security_context_t sid = NULL; enum { terminal_width = 79 };
#endif #else
#if ENABLE_FEATURE_PS_WIDE
int terminal_width; int terminal_width;
int w_count = 0; int w_count = 0;
opt_complementary = "-:ww";
#else
# define terminal_width 79
#endif #endif
#if ENABLE_FEATURE_PS_WIDE || ENABLE_SELINUX #if ENABLE_FEATURE_PS_WIDE || ENABLE_SELINUX
/* handle arguments */
#if ENABLE_FEATURE_PS_WIDE && ENABLE_SELINUX
i = getopt32(argc, argv, "wc", &w_count);
#elif ENABLE_FEATURE_PS_WIDE && !ENABLE_SELINUX
getopt32(argc, argv, "w", &w_count);
#else /* !ENABLE_FEATURE_PS_WIDE && ENABLE_SELINUX */
i = getopt32(argc, argv, "c");
#endif
#if ENABLE_FEATURE_PS_WIDE #if ENABLE_FEATURE_PS_WIDE
opt_complementary = "-:ww";
USE_SELINUX(i =) getopt32(argc, argv, "w" USE_SELINUX("c"), &w_count);
/* if w is given once, GNU ps sets the width to 132, /* if w is given once, GNU ps sets the width to 132,
* if w is given more than once, it is "unlimited" * if w is given more than once, it is "unlimited"
*/ */
@ -48,18 +36,18 @@ int ps_main(int argc, char **argv)
/* Go one less... */ /* Go one less... */
terminal_width--; terminal_width--;
} }
#else /* only ENABLE_SELINUX */
i = getopt32(argc, argv, "c");
#endif #endif
#if ENABLE_SELINUX #if ENABLE_SELINUX
if ((i & (1+ENABLE_FEATURE_PS_WIDE)) && is_selinux_enabled()) if ((i & (1+ENABLE_FEATURE_PS_WIDE)) && is_selinux_enabled())
use_selinux = 1; use_selinux = 1;
#endif #endif
#endif /* ENABLE_FEATURE_PS_WIDE || ENABLE_SELINUX */ #endif /* ENABLE_FEATURE_PS_WIDE || ENABLE_SELINUX */
#if ENABLE_SELINUX
if (use_selinux) if (use_selinux)
puts(" PID Context Stat Command"); puts(" PID Context Stat Command");
else else
#endif
puts(" PID Uid VmSize Stat Command"); puts(" PID Uid VmSize Stat Command");
while ((p = procps_scan(1)) != 0) { while ((p = procps_scan(1)) != 0) {
@ -75,7 +63,7 @@ int ps_main(int argc, char **argv)
} }
if (sid) { if (sid) {
/* I assume sid initilized with NULL */ /* I assume sid initialized with NULL */
len = strlen(sid)+1; len = strlen(sid)+1;
safe_strncpy(sbuf, sid, len); safe_strncpy(sbuf, sid, len);
freecon(sid); freecon(sid);
@ -99,7 +87,7 @@ int ps_main(int argc, char **argv)
i = 0; i = 0;
if (strlen(namecmd) > (size_t)i) if (strlen(namecmd) > (size_t)i)
namecmd[i] = 0; namecmd[i] = 0;
printf("%s\n", namecmd); puts(namecmd);
} else { } else {
namecmd = p->short_cmd; namecmd = p->short_cmd;
if (i < 2) if (i < 2)
@ -108,7 +96,7 @@ int ps_main(int argc, char **argv)
namecmd[i-2] = 0; namecmd[i-2] = 0;
printf("[%s]\n", namecmd); printf("[%s]\n", namecmd);
} }
/* no check needed, but to make valgrind happy.. */ /* no check needed, but to make valgrind happy.. */
if (ENABLE_FEATURE_CLEAN_UP && p->cmd) if (ENABLE_FEATURE_CLEAN_UP && p->cmd)
free(p->cmd); free(p->cmd);
} }