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[PATCH] strcasestr compatibility replacement
Some C libraries lack strcasestr(); add a stupid replacement to help folks with such. [jc: original Linus posting, updated with his "also need <ctype.h>", updated further with a fix from Joachim B Haga <cjhaga@fys.uio.no>"] Signed-off-by: Junio C Hamano <junkio@cox.net>
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6
Makefile
6
Makefile
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@ -9,6 +9,8 @@
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# Define NO_CURL if you do not have curl installed. git-http-pull is not
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# Define NO_CURL if you do not have curl installed. git-http-pull is not
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# built, and you cannot use http:// and https:// transports.
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# built, and you cannot use http:// and https:// transports.
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#
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#
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# Define NO_STRCASESTR if you don't have strcasestr.
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#
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# Define PPC_SHA1 environment variable when running make to make use of
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# Define PPC_SHA1 environment variable when running make to make use of
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# a bundled SHA1 routine optimized for PowerPC.
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# a bundled SHA1 routine optimized for PowerPC.
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#
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#
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@ -203,6 +205,10 @@ ifdef NEEDS_NSL
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LIBS += -lnsl
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LIBS += -lnsl
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SIMPLE_LIB += -lnsl
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SIMPLE_LIB += -lnsl
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endif
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endif
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ifdef NO_STRCASESTR
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DEFINES += -Dstrcasestr=gitstrcasestr
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LIB_OBJS += compat/strcasestr.o
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endif
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DEFINES += '-DSHA1_HEADER=$(SHA1_HEADER)'
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DEFINES += '-DSHA1_HEADER=$(SHA1_HEADER)'
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23
compat/strcasestr.c
Normal file
23
compat/strcasestr.c
Normal file
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@ -0,0 +1,23 @@
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#include <string.h>
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#include <ctype.h>
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char *gitstrcasestr(const char *haystack, const char *needle)
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{
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int nlen = strlen(needle);
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int hlen = strlen(haystack) - nlen + 1;
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int i;
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for (i = 0; i < hlen; i++) {
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int j;
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for (j = 0; j < nlen; j++) {
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unsigned char c1 = haystack[i+j];
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unsigned char c2 = needle[j];
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if (toupper(c1) != toupper(c2))
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goto next;
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}
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return (char *) haystack + i;
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next:
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;
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}
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return NULL;
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}
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