2753aae0e
Denys Vlasenko
2010-12-30
Subject
libbb: optionally support RTMIN[+n] and RTMAX[-n] signal names
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libbb/Config.src+1 -1
| @@ -135,7 +135,7 @@ config FEATURE_NON_POSIX_CP | |
| and create a regular file. This does not conform to POSIX, | |
| but prevents a symlink attack. | |
| Similarly, "cp file device" will not send file's data | |
| - | to the device. |
| + | to the device. (To do that, use "cat file >device") |
| config FEATURE_VERBOSE_CP_MESSAGE | |
| bool "Give more precise messages when copy fails (cp, mv etc)" | |
libbb/u_signal_names.c+37 -5
| @@ -7,6 +7,13 @@ | |
| * Licensed under GPLv2 or later, see file LICENSE in this source tree. | |
| */ | |
| + | //config:config FEATURE_RTMINMAX |
| + | //config: bool "Support RTMIN[+n] and RTMAX[-n] signal names" |
| + | //config: default y |
| + | //config: help |
| + | //config: Support RTMIN[+n] and RTMAX[-n] signal names |
| + | //config: in kill, killall etc. This costs ~250 bytes. |
| + | |
| #include "libbb.h" | |
| /* Believe it or not, but some arches have more than 32 SIGs! | |
| @@ -134,20 +141,45 @@ int FAST_FUNC get_signum(const char *name) | |
| if (strcasecmp(name, signals[i]) == 0) | |
| return i; | |
| - | #if ENABLE_DESKTOP && (defined(SIGIOT) || defined(SIGIO)) |
| + | #if ENABLE_DESKTOP |
| + | # if defined(SIGIOT) || defined(SIGIO) |
| /* SIGIO[T] are aliased to other names, | |
| * thus cannot be stored in the signals[] array. | |
| * Need special code to recognize them */ | |
| if ((name[0] | 0x20) == 'i' && (name[1] | 0x20) == 'o') { | |
| - | #ifdef SIGIO |
| + | # ifdef SIGIO |
| if (!name[2]) | |
| return SIGIO; | |
| - | #endif |
| - | #ifdef SIGIOT |
| + | # endif |
| + | # ifdef SIGIOT |
| if ((name[2] | 0x20) == 't' && !name[3]) | |
| return SIGIOT; | |
| - | #endif |
| + | # endif |
| + | } |
| + | # endif |
| + | #endif |
| + | |
| + | #if ENABLE_FEATURE_RTMINMAX |
| + | # if defined(SIGRTMIN) && defined(SIGRTMAX) |
| + | if (strncasecmp(name, "RTMAX", 5) == 0) { |
| + | if (!name[5]) |
| + | return SIGRTMAX; |
| + | if (name[5] == '-') { |
| + | i = bb_strtou(name + 6, NULL, 10); |
| + | if (!errno && i <= SIGRTMAX - SIGRTMIN) |
| + | return SIGRTMAX - i; |
| + | } |
| + | } |
| + | if (strncasecmp(name, "RTMIN", 5) == 0) { |
| + | if (!name[5]) |
| + | return SIGRTMIN; |
| + | if (name[5] == '+') { |
| + | i = bb_strtou(name + 6, NULL, 10); |
| + | if (!errno && i <= SIGRTMAX - SIGRTMIN) |
| + | return SIGRTMIN + i; |
| + | } |
| } | |
| + | # endif |
| #endif | |
| return -1; | |