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author | rsc <devnull@localhost> | 2003-11-23 18:12:54 +0000 |
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committer | rsc <devnull@localhost> | 2003-11-23 18:12:54 +0000 |
commit | fd04aacee17b348da206c13a550dc1029669805f (patch) | |
tree | 9bdd35a25ff6e3d6e9a0171b06240a76723f922c /src/lib9/cistrncmp.c | |
parent | 74f990ad84deb1591ddb91be4fc8152ec0c46222 (diff) | |
download | plan9port-fd04aacee17b348da206c13a550dc1029669805f.tar.gz plan9port-fd04aacee17b348da206c13a550dc1029669805f.tar.bz2 plan9port-fd04aacee17b348da206c13a550dc1029669805f.zip |
Various additions and fixes.
Diffstat (limited to 'src/lib9/cistrncmp.c')
-rw-r--r-- | src/lib9/cistrncmp.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/lib9/cistrncmp.c b/src/lib9/cistrncmp.c new file mode 100644 index 00000000..8f24d411 --- /dev/null +++ b/src/lib9/cistrncmp.c @@ -0,0 +1,28 @@ +#include <u.h> +#include <libc.h> + +int +cistrncmp(char *s1, char *s2, int n) +{ + int c1, c2; + + while(*s1 && n-- > 0){ + c1 = *(uchar*)s1++; + c2 = *(uchar*)s2++; + + if(c1 == c2) + continue; + + if(c1 >= 'A' && c1 <= 'Z') + c1 -= 'A' - 'a'; + + if(c2 >= 'A' && c2 <= 'Z') + c2 -= 'A' - 'a'; + + if(c1 != c2) + return c1 - c2; + } + if(n <= 0) + return 0; + return -*s2; +} |